{"id":7496,"date":"2025-11-10T10:34:46","date_gmt":"2025-11-10T09:34:46","guid":{"rendered":"https:\/\/www.polarpod.fr\/?page_id=7496"},"modified":"2026-02-09T00:08:16","modified_gmt":"2026-02-08T23:08:16","slug":"larctique-et-la-circulation-oceanique","status":"publish","type":"page","link":"https:\/\/www.polarpod.fr\/fr\/encyclopedie-polaire\/larctique-et-la-circulation-oceanique\/","title":{"rendered":"L\u2019ARCTIQUE ET LA CIRCULATION OC\u00c9ANIQUE"},"content":{"rendered":"[vc_row type=\u00a0\u00bbfull_width_background\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bg_color=\u00a0\u00bb#454156″ scene_position=\u00a0\u00bbcenter\u00a0\u00bb top_padding=\u00a0\u00bb4%\u00a0\u00bb bottom_padding=\u00a0\u00bb0%\u00a0\u00bb text_color=\u00a0\u00bblight\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb id=\u00a0\u00bbintro\u00a0\u00bb row_name=\u00a0\u00bbIntro\u00a0\u00bb color_overlay=\u00a0\u00bb#0a0a0a\u00a0\u00bb color_overlay_2=\u00a0\u00bb#C02020″ overlay_strength=\u00a0\u00bb0.5″ gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbzoom-out-slow\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb shape_type=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bbtop\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb centered_text=\u00a0\u00bbtrue\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_row_inner column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner top_padding_desktop=\u00a0\u00bb2%\u00a0\u00bb bottom_padding_desktop=\u00a0\u00bb0″ left_padding_desktop=\u00a0\u00bb0″ right_padding_desktop=\u00a0\u00bb0″ column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbleft\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb enable_animation=\u00a0\u00bbtrue\u00a0\u00bb animation=\u00a0\u00bbfade-in-from-bottom\u00a0\u00bb animation_easing=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbadvanced\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][image_with_animation image_url=\u00a0\u00bb4990″ image_size=\u00a0\u00bbfull\u00a0\u00bb max_width=\u00a0\u00bb150%\u00a0\u00bb max_width_mobile=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbentrance\u00a0\u00bb animation=\u00a0\u00bbNone\u00a0\u00bb animation_movement_type=\u00a0\u00bbtransform_y\u00a0\u00bb hover_animation=\u00a0\u00bbnone\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb border_radius=\u00a0\u00bbnone\u00a0\u00bb box_shadow=\u00a0\u00bbnone\u00a0\u00bb image_loading=\u00a0\u00bbdefault\u00a0\u00bb][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbfull_width_background\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bb5px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bg_color=\u00a0\u00bb#FFFFFF\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb top_padding=\u00a0\u00bb1%\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb left_padding_phone=\u00a0\u00bb0″ constrain_group_6=\u00a0\u00bbyes\u00a0\u00bb right_padding_phone=\u00a0\u00bb0″ text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb id=\u00a0\u00bbactu\u00a0\u00bb row_name=\u00a0\u00bbActualit\u00e9\u00a0\u00bb advanced_gradient_angle=\u00a0\u00bb0″ overlay_strength=\u00a0\u00bb0.3″ gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb shape_type=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bb0px\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb advanced_gradient_angle=\u00a0\u00bb0″ gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb max_width=\u00a0\u00bb700″ text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

L’encyclop\u00e9die polaire<\/span><\/h1>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbfull_width_background\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bb30px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bg_color=\u00a0\u00bb#ffffff\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb top_padding=\u00a0\u00bb4%\u00a0\u00bb bottom_padding=\u00a0\u00bb4%\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb id=\u00a0\u00bbATMOSPHERE\u00a0\u00bb row_name=\u00a0\u00bbSeul sur la banquise\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb shape_type=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb top_margin=\u00a0\u00bb0%\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/4″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][nectar_global_section id=\u00a0\u00bb8435″][\/vc_column][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb3\/4″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb5\/6″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

L’ARCTIQUE ET LA CIRCULATION OC\u00c9ANIQUE<\/span><\/h2>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/6″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][nectar_icon icon_family=\u00a0\u00bblinea\u00a0\u00bb icon_style=\u00a0\u00bbshadow-bg\u00a0\u00bb icon_color_type=\u00a0\u00bbcolor_scheme\u00a0\u00bb icon_color=\u00a0\u00bbAccent-Color\u00a0\u00bb open_new_tab=\u00a0\u00bbtrue\u00a0\u00bb icon_padding=\u00a0\u00bb5px\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb url=\u00a0\u00bbhttps:\/\/www.polarpod.fr\/wp-content\/uploads\/2025\/11\/CIRCULATION_OCEANIQUE.pdf\u00a0\u00bb icon_size=\u00a0\u00bb40″ icon_linea=\u00a0\u00bbicon-basic-printer\u00a0\u00bb][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n
\n

UN OC\u00c9AN CACH\u00c9 SOUS LA BANQUISE<\/span><\/h3>\n
\n
\n
\n
\n
\n

L\u2019oc\u00e9an Arctique, centr\u00e9 sur le p\u00f4le Nord g\u00e9ographique, couvre environ 13 000 000 km2. Ses fonds ne sont connus que depuis quelques dizaines d\u2019ann\u00e9es. Sorte de M\u00e9diterran\u00e9e bor\u00e9ale quasi ferm\u00e9e par le d\u00e9troit de B\u00e9ring, il est enserr\u00e9 par les grands continents de l\u2019h\u00e9misph\u00e8re nord et ne s\u2019ouvre largement que vers l\u2019oc\u00e9an Atlantique, entre le Groenland et la Scandinavie.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\"\"[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb2\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n

DES BASSINS ABYSSAUX…\u00a0<\/span><\/h3>\n
\n
\n
\n
\n
\n
\n

Le centre de l\u2019oc\u00e9an Arctique est occup\u00e9 par des cuvettes profondes de 3 000 \u00e0 5 000 m, s\u00e9par\u00e9es par des cha\u00eenes sous-marines dont les sommets culminent \u00e0 pr\u00e8s de 1000 m sous la surface. Cette morphologie complexe refl\u00e8te une histoire g\u00e9ologique longue et tumultueuse.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb2\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n

… BORD\u00c9S DE MERS PEU PROFONDES ET D’ARCHIPELS<\/span><\/h3>\n
\n
\n
\n
\n
\n
\n

Au nord de l\u2019Eurasie, un vaste plateau continental s\u2019\u00e9tend jusqu\u2019\u00e0 1 300 km des c\u00f4tes, cr\u00e9ant des mers bordi\u00e8res peu profondes, d\u2019o\u00f9 \u00e9mergent plusieurs grandes \u00eeles. \u00c0 l\u2019oppos\u00e9, au nord du continent am\u00e9ricain, la multitude d\u2019\u00eeles de l\u2019archipel canadien forme un r\u00e9seau d\u2019\u00e9troits chenaux tr\u00e8s profonds, sur-creus\u00e9s par les glaciers.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\"\"[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\"\"[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb2\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n

UNE G\u00c9OGRAPHIE, M\u00c8RE DE NOTRE CLIMAT<\/span><\/h3>\n
\n
\n
\n
\n
\n
\n

L\u2019oc\u00e9an Arctique est une sorte de cul-de-sac de l\u2019oc\u00e9an Atlantique dont il est le prolongement naturel. La large ouverture entre Groenland et Spitzberg permet de vastes circulations de masses d\u2019eau, tant en surface qu\u2019en profondeur. Ce brassage g\u00e9n\u00e8re d\u2019importants \u00e9changes de chaleur, clefs du climat de l\u2019h\u00e9misph\u00e8re Nord.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb2\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n

DES COURANTS MARINS : DES DISTRIBUTEURS DE CHALEUR<\/span><\/h3>\n
\n
\n
\n
\n
\n
\n
\n

Les oc\u00e9ans ne sont pas immobiles. Au contraire, courants de surface et courants profonds les animent en permanence.
\nLes courants de surface (0,1 \u00e0 0,5 m\/s) sont entra\u00een\u00e9s par l\u2019action des vents ; les courants profonds, beaucoup plus lents, sont dus aux diff\u00e9rences de densit\u00e9 de l\u2019eau de mer, r\u00e9gl\u00e9es par les temp\u00e9ratures et les salinit\u00e9s. Tous ces courants sont, lors de leurs d\u00e9placements, d\u00e9vi\u00e9s par la rotation du globe (force de Coriolis).
\nL\u2019oc\u00e9an re\u00e7oit beaucoup de chaleur sous les tropiques. De l\u00e0, les courant de surface transportent les eaux chaudes vers les hautes latitudes, o\u00f9 la chaleur est restitu\u00e9e \u00e0 l\u2019atmosph\u00e8re. Ensuite, l\u2019eau, refroidie et donc plus lourde, plonge en profondeur et repart vers les tropiques, emport\u00e9e par la circulation profonde (eau profonde nord atlantique par exemple).
\nLes masses d\u2019eau oc\u00e9aniques temp\u00e8rent ainsi les rigueurs des r\u00e9gions froides et mod\u00e8rent la temp\u00e9rature des r\u00e9gions chaudes. Comprendre la circulation oc\u00e9anique mondiale c\u2019est donc mieux comprendre les climats de la Terre ; et toute variation oc\u00e9anique alt\u00e8re les climats.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\"\"[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\"\"

Le fond des seuils sous-marins nordiques sont marqu\u00e9s par les courants\u2026<\/p><\/div>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb2\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n

L’OC\u00c9AN ARCTIQUE : LE CUL-DE-SAC DE L’OC\u00c9AN MONDIAL<\/span><\/h3>\n
\n
\n
\n
\n
\n
\n
\n
\n
\n

Le fond de l\u2019immense cuvette oc\u00e9anique bor\u00e9ale communique par un \u00e9troit sillon sous-marin (fosse de la L\u00e9na, dont la profondeur maximale d\u00e9passe 4 000 m) avec un deuxi\u00e8me domaine, le bassin scandinave, trois fois plus petit, qui s\u2019\u00e9tend entre le Svalbard, la Norv\u00e8ge, l\u2019Islande et le Groenland. Ce bassin scandinave est, lui, largement ouvert sur l\u2019Atlantique de part et d\u2019autre de l\u2019Islande.
\nL\u2019eau qui p\u00e9n\u00e8tre dans l\u2019oc\u00e9an Arctique par le d\u00e9troit de B\u00e9ring, pouss\u00e9e par le courant giratoire de la mer de B\u00e9ring, est r\u00e9duite \u00e0 une couche superficielle (seuil d\u2019une quarantaine de m\u00e8tres de profondeur) ; c\u00f4t\u00e9 Atlantique en revanche, la branche du puissant courant nord atlantique, qui rentre le long de la Norv\u00e8ge, est large g\u00e9n\u00e9reuse (seuils vers -200 m et -500 m, soit une \u201couverture\u201d 200 fois plus importante qu\u2019au d\u00e9troit de B\u00e9ring). Ainsi, si l\u2019oc\u00e9an Antarctique est le rond-point des eaux oc\u00e9aniques mondiales, l\u2019oc\u00e9an Arctique, au contraire, en est en quelque sorte le cul-de-sac, le point de rebroussement.
\nLes sorties d\u2019eau se font essentiellement de deux fa\u00e7ons : en profondeur, de la mer de Norv\u00e8ge vers l\u2019Atlantique, et en surface par les courants du Groenland et du Labrador. Pratiquement rien ne ressort par le seuil de B\u00e9ring vers le Pacifique.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb2\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n

EAUX DE FOND ET EAUX DE SURFACE<\/span><\/h3>\n
\n
\n
\n
\n
\n
\n
\n
\n

En profondeur, la circulation oc\u00e9anique arctique est tr\u00e8s diff\u00e9rente de celle de la surface.
\nToutes les eaux venues de l\u2019Atlantique Nord y retournent, car la sortie vers le Pacifique est condamn\u00e9e. Au niveau du Svalbard, les eaux atlantiques, plus sal\u00e9es et plus denses quoique moins froides, plongent sous les eaux polaires form\u00e9es en surface dans le vaste bassin arctique ; cette plong\u00e9e est nettement marqu\u00e9e par une fronti\u00e8re hydrologique sinueuse : le front polaire. L\u00e0, ces eaux p\u00e9n\u00e8trent en profondeur dans le vaste bassin bor\u00e9al, o\u00f9 on les reconna\u00eet \u00e0 leur temp\u00e9rature toujours positive et leur salinit\u00e9 sup\u00e9rieure \u00e0 35 %. Cette masse d\u2019eau interm\u00e9diaire longe tout d\u2019abord le talus eurasiatique, puis, pi\u00e9g\u00e9e dans les bassins sous-marins successifs, s\u2019en retourne et ressort par le profond sillon de la L\u00e9na vers le bassin Scandinave et la mer du Groenland.
\nTout au fond du bassin eurasiatique \u2013 le plus profond \u2013 une couche d\u2019eau de temp\u00e9rature n\u00e9gative, form\u00e9e au niveau du plateau continental, demeure pi\u00e9g\u00e9e, ne pouvant franchir la cha\u00eene de Lomonossov.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/3″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\"\"

\u2026alors que les plaines, calmes, ne le sont pas.<\/p><\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n
\n
\n

LE BASSIN BOR\u00c9AL : 3 MASSES D’EAU SUPERPOS\u00c9ES<\/span><\/h3>\n
\n
\n
\n
\n

En g\u00e9n\u00e9ral, une couche superficielle d\u2019environ 150 m d\u2019\u00e9paisseur, relativement douce (\u00e0 cause des apports environnants) et dont la temp\u00e9rature demeure toujours n\u00e9gative, recouvre une couche interm\u00e9diaire qui descend jusque vers 900 m, plus chaude (> 0\u00b0 C) et plus sal\u00e9e (> 35%\u00b0); puis jusqu\u2019au fond, circule une couche profonde \u00e0 peine moins sal\u00e9e, mais de temp\u00e9rature \u00e0 nouveau l\u00e9g\u00e8rement n\u00e9gative.
\nD\u2019autres subdivisions, parfois saisonni\u00e8res, apparaissent dans les mers nordiques.<\/p>\n<\/div>\n

\n

<\/h3>\n

UNE CATARACTE SOUS-MARINE<\/span><\/h3>\n

Au fond de l\u2019oc\u00e9an Arctique, l\u2019eau peut s\u2019en \u00e9chapper vers le sud en d\u00e9bordant au-dessus des seuils sous-marins du d\u00e9troit du Danemark et des \u00eeles F\u00e9ro\u00e9. Ainsi na\u00eet le courant de fond de l\u2019Atlantique Nord, qui s\u2019\u00e9coule en v\u00e9ritables \u201ccataractes g\u00e9antes\u201d sous-marines.
\nAu sud du seuil groenlando-islandais, l\u2019eau forme une cataracte de 2 000 m\u00e8tres de d\u00e9nivel\u00e9 et de 200 km de large ; vers 3 500 m de profondeur, elle constitue l\u2019eau profonde de l\u2019Atlantique Nord. Pendant sa descente, l\u2019eau de la cataracte se m\u00e9lange probablement avec de l\u2019eau plus chaude (venue en particulier de la M\u00e9diterran\u00e9e occidentale), de sorte que l\u2019eau profonde de l\u2019Atlantique Nord est un peu plus chaude que l\u2019eau de fond antarctique, qui arrive, elle, du sud, et forme une couche distincte au-dessus.
\nCes cataractes ont un d\u00e9bit au moins 25 fois plus que celui de l\u2019Amazone !<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

\n
\n
\n

QUELQUES D\u00c9BITS DES GRANDS COURANTS OC\u00c9ANIQUES :<\/span><\/h3>\n
\n
\n
\n
\n
\n
    \n
  • Courant circumpolaire Antarctique : 130 Sv*<\/li>\n
  • Gulf Stream : 90 Sv<\/li>\n
  • Cataracte sous-marine du d\u00e9troit du Danemark : 2,5 \u00e0 5 Sv<\/li>\n
  • Courant de B\u00e9ring : environ 1 Sv<\/li>\n
  • Tous les fleuves du monde : 1 Sv
    \n* 1 Sv (Sverdrup) = 1 million de m3\/s<\/li>\n<\/ul>\n<\/div>\n
    \n

    L’OC\u00c9AN ARCTIQUE : ENCORE BIEN DES MYST\u00c8RES<\/span><\/h3>\n

    L\u2019oc\u00e9an Arctique est l\u2019un des moins \u00e9tudi\u00e9 du monde. Bien que polaire, il est totalement diff\u00e9rent de l\u2019oc\u00e9an Antarctique par de nombreux aspects : ses larges plates-formes continentales, son ouverture active (dorsale), son extension jusqu\u2019au p\u00f4le, ses importants apports d\u2019eau douce par les fleuves, sa dynamique propre des glaces\u2026
    \nCirculation des eaux, processus d\u2019englacement et de d\u00e9gel sont encore tr\u00e8s hypoth\u00e9tiques. La mod\u00e9lisation de l\u2019oc\u00e9an Arctique sur ordinateur pose de graves probl\u00e8mes ; en particulier, les ph\u00e9nom\u00e8nes \u00e0 petite \u00e9chelle sont mal connus. Pourtant, cet oc\u00e9an joue un r\u00f4le pr\u00e9pond\u00e9rant dans le climat plan\u00e9taire \u2013 et davantage encore europ\u00e9en \u2013 car il produit une grande partie de l\u2019eau profonde mondiale et doit \u201cr\u00e9pondre\u201d aux activit\u00e9s humaines, la plupart relativement proches.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

    \n
    \n
    \n

    LE JEU DES MAR\u00c9ES, PERTURB\u00c9 PAR LE RELIEF C\u00d4TIER<\/span><\/h3>\n
    \n
    \n
    \n
    \n
    \n
    \n

    Les mar\u00e9es sont dues \u00e0 l\u2019attraction qu\u2019exercent la Lune et le Soleil sur la masse d\u2019eau des oc\u00e9ans. Mais cette explication \u2013 m\u00eame en tenant compte de l\u2019inertie, des frottements\u2026 \u2013 ne suffit pas \u00e0 retrouver par le calcul les rythmes et les marnages peu croyables que l\u2019on observe, par exemple, en Nouvelle \u2013 \u00c9cosse canadienne (jusqu\u2019\u00e0 16 m\u00e8tres en baie de Fundy !).
    \nEn effet, l\u2019attraction lunaire seule \u201csoul\u00e8ve\u201d les eaux d\u2019environ 50 cm ; le Soleil \u2013 bien plus massif mais tellement plus lointain \u2013 rajoute sa contribution : une vingtaine de cm. Mais le reste ? C\u2019est essentiellement le r\u00e9sultat d\u2019une amplification locale, due \u00e0 la forme des c\u00f4tes et la remont\u00e9e des fonds : une r\u00e9sonance. Au fond d\u2019un golfe, ou d\u2019un entonnoir c\u00f4tier en pente douce, le balancement de la mar\u00e9e se r\u00e9fl\u00e9chit sur les parois et \u201cr\u00e9sonne\u201d donc (oscillations forc\u00e9es), ce qui peut d\u00e9cupler l\u2019amplitude du ph\u00e9nom\u00e8ne initial.
    \nLes oscillations des mar\u00e9es g\u00e9n\u00e8rent bien s\u00fbr des courants, parfois tr\u00e8s puissants ; par exemple, entre les \u00eeles de Barents et d\u2019Edge. En frappant les pentes des talus continentaux du nord de l\u2019Eurasie, les mar\u00e9es cr\u00e9ent \u00e9galement des tourbillons \u2013 sortes de mini cyclones aquatiques \u2013 qui s\u2019enfoncent profond\u00e9ment dans toute la hauteur d\u2019eau (vortex).<\/p>\n<\/div>\n<\/div>\n

    <\/h3>\n

    LES SCIENTIFIQUES DRESSENT DES CARTES DE MAR\u00c9ES<\/span><\/h3>\n
    \n
    \n

    Au milieu des oc\u00e9ans, les mar\u00e9es existent aussi, mais en l\u2019absence d\u2019\u00eele, rien ne permet de s\u2019en rendre compte (les bateaux montent avec le niveau de la mer\u2026). Les scientifiques mesurent ce battement du niveau oc\u00e9anique en immergeant sur le fond des appareils enregistreurs (mar\u00e9graphes) sensible \u00e0 la pression de la colonne d\u2019eau qui les \u00e9crase : une m\u00e9thode qui donne la mar\u00e9e au centim\u00e8tre pr\u00e8s.
    \nSous l\u2019effet de l\u2019ensemble de ces ph\u00e9nom\u00e8nes, le niveau des oc\u00e9ans semble chaque jour se balancer et tourner autour de points fixes : ces points de mar\u00e9e nulle sont dits amphidromiques (du grec amphi et dromos , qui court autour) et les lignes qui permettent de suivre les amplitudes au fil des heures, des lignes cotidales, c\u2019est-\u00e0-dire d\u2019\u00e9gale mar\u00e9e (de l\u2019anglais tide , mar\u00e9e). Les oc\u00e9anographes repr\u00e9sentent leurs r\u00e9sultats sous formes de cartes o\u00f9 ces points et lignes apparaissent, exprim\u00e9es en \u201cheure cotidale\u201d ou degr\u00e9s de longitude \u00e0 partir du m\u00e9ridien de Greenwich (Temps Universel).<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

    \n
    \n
    \n

    LE COIN DES PHYSICIENS<\/span><\/h3>\n
    \n
    \n
    \n
    \n
    \n

    > Un litre d\u2019eau froide est plus lourd qu\u20191 litre d\u2019eau chaude; un litre d\u2019eau tr\u00e8s sal\u00e9e, est plus lourd qu\u20191 litre d\u2019eau moins sal\u00e9e. Les diff\u00e9rences de densit\u00e9 \u2013 li\u00e9es aussi \u00e0 la pression c\u2019est-\u00e0-dire \u00e0 la profondeur \u2013 semblent infimes : quelques dizaines de kilos par tonne (1m3). Mais cela suffit pour faire plonger ou surnager les diverses masses d\u2019eau oc\u00e9aniques\u2026 que les physiciens rep\u00e8rent et suivent, pr\u00e9cis\u00e9ment, gr\u00e2ce \u00e0 leurs \u201csignes particuliers\u201d : temp\u00e9rature et salinit\u00e9.<\/p>\n

    > Une diminution de temp\u00e9rature de 10 \u00b0C fait cro\u00eetre la densit\u00e9 de l\u2019eau de mer autant qu\u2019une augmentation de salinit\u00e9 de 2 g\/l, ou qu\u2019un enfoncement de 2 ou 300 m dans les profondeurs. Ainsi, une eau polaire superficielle de densit\u00e9 de 1,O27 par exemple, passerait \u00e0 une densit\u00e9 de 1,022 \u00e0 l\u2019\u00e9quateur, mais \u00e0 1,050 vers 5 000 m de profondeur.<\/p>\n

    > En Arctique, c\u2019est la salinit\u00e9 de l\u2019eau de mer qui conditionne les plong\u00e9es d\u2019eau \u00e0 tr\u00e8s grande profondeur, plus encore que la temp\u00e9rature. En effet, si la salinit\u00e9 de surface de l\u2019oc\u00e9an est faible \u2013 en raison par exemple d\u2019un exc\u00e8s de pr\u00e9cipitations ou d\u2019apports d\u2019eau douce par les fleuves \u2013 la glace va pouvoir se former sur la mer avant que la densit\u00e9 de l\u2019eau n\u2019ait atteint une valeur suffisamment \u00e9lev\u00e9e pour lui permettre de plonger \u00e0 grande profondeur. Or, une fois form\u00e9e, la glace de mer bloque les \u00e9changes oc\u00e9an atmosph\u00e8re, ce qui arr\u00eate alors la formation d\u2019eau profonde.<\/p>\n<\/div>\n

    LE SAVIEZ-VOUS ?<\/span><\/h3>\n

    > La Lune et le Soleil n\u2019attirent pas uniquement l\u2019eau des oc\u00e9ans, mais chaque parcelle du globe et donc chaque point de la cro\u00fbte terrestre. Il existe ainsi des \u201cmar\u00e9es terrestres\u201d, qui soul\u00e8vent les continents d\u2019une trentaine de centim\u00e8tres tous les jours. Une modification du sol \u00e0 laquelle nous ne sommes pas sensibles, car, localement, toute une r\u00e9gion se soul\u00e8ve et s\u2019abaisse ainsi. Et nous avec !<\/p>\n

    > Si le courant du Gulf Stream n\u2019existait pas, le climat de l\u2019Europe serait beaucoup plus froid. Il semble que cela soit d\u00e9j\u00e0 arriv\u00e9 au cours de l\u2019histoire de la Terre. Par exemple, l\u2019affaiblissement des courants pourrait \u00eatre la cause d\u2019un \u00e9pisode froid, il y a 11000 ans (Dryas r\u00e9cent).<\/p>\n

    > Des eaux vieilles de 2300 ans circulent au fond du Pacifique.<\/p>\n

    > Les mar\u00e9es ralentissent la rotation de la Terre par perte d\u2019\u00e9nergie due aux frottements internes (2 milli\u00e8mes de seconde par si\u00e8cle). Ainsi, au temps des dinosaures, les journ\u00e9es \u00e9taient-elles plus courtes qu\u2019aujourd\u2019hui, car la Terre tournait plus vite : l\u2019ann\u00e9e comptait alors 380 jours d\u2019environ 23 heures\u2026 Et elle comptait 400 jours de 22 heures \u00e0 l\u2019\u00e9poque des premiers amphibiens, il y a 350 millions d\u2019ann\u00e9es.<\/p>\n

    > Les \u00e9l\u00e9ments radioactifs lib\u00e9r\u00e9s lors des essais nucl\u00e9aires ou lors de la catastrophe de Tchernobyl servent de \u201ctraceurs\u201d pour pister les courants. Exemple : le tritium, un isotope de l\u2019hydrog\u00e8ne, suivi en mer du Groenland.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner equal_height=\u00a0\u00bbyes\u00a0\u00bb column_margin=\u00a0\u00bbcustom\u00a0\u00bb column_margin_custom=\u00a0\u00bb2px\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bottom_padding=\u00a0\u00bb2%\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_position=\u00a0\u00bbdefault\u00a0\u00bb row_position_tablet=\u00a0\u00bbinherit\u00a0\u00bb row_position_phone=\u00a0\u00bbinherit\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb pointer_events=\u00a0\u00bball\u00a0\u00bb][vc_column_inner column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb column_padding_type=\u00a0\u00bbdefault\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb][vc_column_text css=\u00a0\u00bb\u00a0\u00bb text_direction=\u00a0\u00bbdefault\u00a0\u00bb]\n

    \n
    \n
    \n

    POUR ALLER PLUS LOIN<\/span><\/h3>\n
    \n
    \n
    \n
    \n
    \n
    \n
    \n
    \n

    BIBLIOGRAPHIE<\/p>\n

      \n
    • L\u2019Arctique et l\u2019environnement bor\u00e9al, P. Av\u00e9rous \u2013 CNDP, 1995<\/li>\n
    • Arctique (Oc\u00e9an) Encyclopedia Universalis<\/li>\n
    • G\u00e9ostrat\u00e9gie de l\u2019Arctique, Amiral Besnault \u2013 Economica-1992<\/li>\n
    • Les caprices des mar\u00e9es, Pour La Science \u2013 Ao\u00fbt 2001<\/li>\n
    • La g\u00e9ographie de l\u2019oc\u00e9an, J-R Vanney \u2013 Oceanis-1991<\/li>\n
    • Les cataractes g\u00e9antes \u2013 Pour la Science n\u00b0138<\/li>\n
    • L\u2019oc\u00e9an plan\u00e9taire \u2013 Sciences et Avenir \u2013 Hors s\u00e9rie n\u00b0 98-1994<\/li>\n
    • Gros temps sur la plan\u00e8te, J-C Duplessis \u2013 Odile Jacob-1990<\/li>\n
    • Glaces de l\u2019Antarctique , C. Lorius \u2013 Odile Jacob-1991<\/li>\n
    • Oceanus \u2013 Woods Hole Oceanographic Intitution-1986<\/li>\n
    • Polar Regions \u2013 CIA-1981<\/li>\n
    • Le Syst\u00e8me Terre, I. Razool \u2013 Flammarion-1993<\/li>\n
    • Les oc\u00e9ans, J-F Minster- Flammarion -1994<\/li>\n
    • The Arctic Ocean Grand Challenge -1995<\/li>\n
    • Chercheurs sur l\u2019Oc\u00e9an\u201d, P.Av\u00e9rous \u2013 Hachette -1981<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=\u00a0\u00bbin_container\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb scene_position=\u00a0\u00bbcenter\u00a0\u00bb text_color=\u00a0\u00bbdark\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bball\u00a0\u00bb column_element_direction_desktop=\u00a0\u00bbdefault\u00a0\u00bb column_element_spacing=\u00a0\u00bbdefault\u00a0\u00bb desktop_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb tablet_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb phone_text_alignment=\u00a0\u00bbdefault\u00a0\u00bb background_color_opacity=\u00a0\u00bb1″ background_hover_color_opacity=\u00a0\u00bb1″ column_backdrop_filter=\u00a0\u00bbnone\u00a0\u00bb column_shadow=\u00a0\u00bbnone\u00a0\u00bb column_border_radius=\u00a0\u00bbnone\u00a0\u00bb column_link_target=\u00a0\u00bb_self\u00a0\u00bb column_position=\u00a0\u00bbdefault\u00a0\u00bb gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb overlay_strength=\u00a0\u00bb0.3″ width=\u00a0\u00bb1\/1″ tablet_width_inherit=\u00a0\u00bbdefault\u00a0\u00bb animation_type=\u00a0\u00bbdefault\u00a0\u00bb bg_image_animation=\u00a0\u00bbnone\u00a0\u00bb border_type=\u00a0\u00bbsimple\u00a0\u00bb column_border_width=\u00a0\u00bbnone\u00a0\u00bb column_border_style=\u00a0\u00bbsolid\u00a0\u00bb][nectar_global_section id=\u00a0\u00bb6550″][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

      [vc_row type=\u00a0\u00bbfull_width_background\u00a0\u00bb full_screen_row_position=\u00a0\u00bbmiddle\u00a0\u00bb column_margin=\u00a0\u00bbdefault\u00a0\u00bb column_direction=\u00a0\u00bbdefault\u00a0\u00bb column_direction_tablet=\u00a0\u00bbdefault\u00a0\u00bb column_direction_phone=\u00a0\u00bbdefault\u00a0\u00bb bg_color=\u00a0\u00bb#454156″ scene_position=\u00a0\u00bbcenter\u00a0\u00bb top_padding=\u00a0\u00bb4%\u00a0\u00bb bottom_padding=\u00a0\u00bb0%\u00a0\u00bb text_color=\u00a0\u00bblight\u00a0\u00bb text_align=\u00a0\u00bbleft\u00a0\u00bb row_border_radius=\u00a0\u00bbnone\u00a0\u00bb row_border_radius_applies=\u00a0\u00bbbg\u00a0\u00bb overflow=\u00a0\u00bbvisible\u00a0\u00bb id=\u00a0\u00bbintro\u00a0\u00bb row_name=\u00a0\u00bbIntro\u00a0\u00bb color_overlay=\u00a0\u00bb#0a0a0a\u00a0\u00bb color_overlay_2=\u00a0\u00bb#C02020″ overlay_strength=\u00a0\u00bb0.5″ gradient_direction=\u00a0\u00bbleft_to_right\u00a0\u00bb shape_divider_position=\u00a0\u00bbbottom\u00a0\u00bb bg_image_animation=\u00a0\u00bbzoom-out-slow\u00a0\u00bb gradient_type=\u00a0\u00bbdefault\u00a0\u00bb shape_type=\u00a0\u00bb\u00a0\u00bb][vc_column column_padding=\u00a0\u00bbno-extra-padding\u00a0\u00bb column_padding_tablet=\u00a0\u00bbinherit\u00a0\u00bb column_padding_phone=\u00a0\u00bbinherit\u00a0\u00bb column_padding_position=\u00a0\u00bbtop\u00a0\u00bb…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":4989,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-7496","page","type-page","status-publish"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/pages\/7496","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/comments?post=7496"}],"version-history":[{"count":7,"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/pages\/7496\/revisions"}],"predecessor-version":[{"id":8519,"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/pages\/7496\/revisions\/8519"}],"up":[{"embeddable":true,"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/pages\/4989"}],"wp:attachment":[{"href":"https:\/\/www.polarpod.fr\/fr\/wp-json\/wp\/v2\/media?parent=7496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}