{"id":106,"date":"2010-06-01T17:13:46","date_gmt":"2010-06-01T16:13:46","guid":{"rendered":"http:\/\/marion-dev.valars.com\/andromede\/?p=106"},"modified":"2019-05-28T14:20:18","modified_gmt":"2019-05-28T12:20:18","slug":"1000km-en-plongee-de-sete-a-menton","status":"publish","type":"post","link":"https:\/\/www.andromede-ocean.com\/english\/blog\/2010\/06\/01\/1000km-en-plongee-de-sete-a-menton\/","title":{"rendered":"1000km en plong\u00e9e de S\u00e8te \u00e0 Menton !"},"content":{"rendered":"<p>\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-thumbnail wp-image-115\" title=\"transect audio g\u00e9oref de loinbd\" src=\"http:\/\/www.andromede-ocean.com\/english\/wp-content\/uploads\/sites\/2\/transect-audio-g\u00e9oref-de-loinbd2-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><br \/>\n<strong>Pourquoi tant d\u2019observations\u00a0:<\/strong><br \/>\nCompl\u00e9ment indispensable aux instruments oc\u00e9anographiques, et cela pour encore tr\u00e8s longtemps, l\u2019observation humaine en plong\u00e9e permet de calibrer les syst\u00e8mes embarqu\u00e9s type sondeurs ou sonars et de lever des zones d\u2019incertitude sur les cartographies.<br \/>\nNettement plus pr\u00e9cis que les robots (la catastrophique actualit\u00e9 de la mar\u00e9e noire en Louisiane est h\u00e9las bien l\u00e0 pour d\u00e9montrer la maladresse des robots sous-marins) les biologistes intervenant en plong\u00e9e sont \u00e0 m\u00eame d\u2019appr\u00e9cier l\u2019\u00e9tat de l\u2019environnement et parfois ont le bonheur de r\u00e9aliser des observations insolites.<br \/>\n<strong> Comment ces parcours ont-ils \u00e9t\u00e9 r\u00e9alis\u00e9s\u00a0:<\/strong><br \/>\nPour parcourir ces 1000km, nous avons mis au point le <strong>transect plongeur audio positionn\u00e9<\/strong>, une technique qui permet la validation terrain de plusieurs milliers de points par un plongeur\/biologiste le long de transects pouvant atteindre une vingtaine de kilom\u00e8tres par jour d\u2019acquisition avec une pr\u00e9cision de l\u2019ordre de 1m.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-121\" title=\"transect audio g\u00e9or\u00e9fBD\" src=\"http:\/\/www.andromede-ocean.com\/english\/wp-content\/uploads\/sites\/2\/transect-audio-g\u00e9or\u00e9fBD1-150x150.jpg\" alt=\"\" width=\"150\" height=\"150\" \/><br \/>\nConcr\u00e8tement le plongeur est tract\u00e9 par le bateau \u00e0 la profondeur\u00a0voulue en fonction des zones \u00e0 d\u00e9crire. Il est \u00e9quip\u00e9 d\u2019une planche de tractage qui lui permet de faire varier sa profondeur, d\u2019un syst\u00e8me de communication et d\u2019un syst\u00e8me de positionnement.<br \/>\nLe plongeur transmet ses observations en temps r\u00e9el (\u00e9cosyst\u00e8me, esp\u00e8ce, vitalit\u00e9\u2026) \u00e0 l\u2019op\u00e9rateur surface qui note ses observations dans le Syst\u00e8me d\u2019information G\u00e9ographique.<br \/>\nUn long et fastidieux travail donc, mais riche d&#8217;enseignements et qui se poursuit actuellement dans le secteur du Golfe Juan \u00e0 l\u2019ouest d\u2019Antibes.\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pourquoi tant d\u2019observations\u00a0: Compl\u00e9ment indispensable aux instruments oc\u00e9anographiques, et cela pour encore tr\u00e8s longtemps, l\u2019observation humaine en plong\u00e9e permet de calibrer les syst\u00e8mes embarqu\u00e9s type sondeurs ou sonars et de lever des zones d\u2019incertitude sur les cartographies. Nettement plus pr\u00e9cis que les robots (la catastrophique actualit\u00e9 de la mar\u00e9e noire en Louisiane est h\u00e9las bien [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-106","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>1000km en plong\u00e9e de S\u00e8te \u00e0 Menton ! - Androm\u00e8de Oc\u00e9anologie<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1000km en plong\u00e9e de S\u00e8te \u00e0 Menton ! - Androm\u00e8de Oc\u00e9anologie\" \/>\n<meta property=\"og:description\" content=\"Pourquoi tant d\u2019observations\u00a0: Compl\u00e9ment indispensable aux instruments oc\u00e9anographiques, et cela pour encore tr\u00e8s longtemps, l\u2019observation humaine en plong\u00e9e permet de calibrer les syst\u00e8mes embarqu\u00e9s type sondeurs ou sonars et de lever des zones d\u2019incertitude sur les cartographies. 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