کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4550603 1627567 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Time variability of the north-western Mediterranean Sea pH over 1995–2011
ترجمه فارسی عنوان
تنوع زمانی دریای شمال غربی دریای مدیترانه در سال 1995 تا 2011
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی


• pH decreases at 0.003 ± 0.001 yr−1 at the Dyfamed site (North Mediterranean Sea).
• Anthropogenic CO2 (CANT) absorption is the key driver of this acidification.
• CT increases at 3.0 ± 0.1 μmol kg−1 yr−1 due to the CANT penetration.
• Biological processes have small effects on CT and pH long-term trends in the region.

Factors controlling ocean acidification and its temporal variations were studied over the 1995–2011 period at the Dyfamed site at 10 m depth, in the North Mediterranean Sea. The results indicated a mean annual decrease of 0.003 ± 0.001 pH units on the seawater scale. The seasonal variability was characterized by a pH decrease during springtime and a strong pH increase in late fall. Anthropogenic CO2 (CANT) absorption by the ocean was the key driver of seawater acidification in this region, accounting for about 70% of the observed drop in pH, followed by water temperature (about 30%). The total inorganic carbon (CT) data showed a CT increase of 30.0 ± 1.0 μmol kg−1 per decade. This decadal increase is mainly due to the CANT penetration (43.2 μmol kg−1 per decade) in surface waters, which is mitigated for by relatively small opposing changes in CT due to physical and biological processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 116, May 2016, Pages 51–60
نویسندگان
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