کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6386664 1327843 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coastal-offshore exchange of organic matter across the Cape Ghir filament (NW Africa) during moderate upwelling
ترجمه فارسی عنوان
تبادل دریای ساحلی و دریایی از مواد ارگانیک در فیبر قاعده غار (شمال آفریقا) در طول آپولید متوسط
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
The net coastal-ocean export of particulate organic carbon (POC), dissolved organic carbon (DOC) and chlorophyll a is studied in August 2009 at the Cape Ghir filament, a recurrent feature located within the NW African upwelling system. The estimated flux of excess total organic carbon (the non-refractory pools of DOC and POC) is about 2.1 × 109 kg C y− 1. DOC represents ~ 70% of the excess organic carbon in August 2009, during moderate upwelling. Assuming that this flux is representative of the range within a typical year, the yearly offshore net transport of total organic carbon would represent at least 29% of the primary production in this area. Since the Cape Ghir filament may extend hundreds of kilometers offshore, the associated seaward flux of organic carbon would contribute to the high microbial respiration rates reported from the nearby oligotrophic open ocean region. Our results illustrate that, when considering the regional carbon budgets of eastern boundary regions, it is imperative to take account of the offshore transport of organic matter in the numerous and recurrent upwelling filaments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Marine Systems - Volume 154, Part B, February 2016, Pages 233-242
نویسندگان
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