کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6383392 | 1626328 | 2015 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Acidification of the Mediterranean Sea from anthropogenic carbon penetration
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
This study presents an estimation of the anthropogenic CO2 (CANT) concentrations and acidification (ÎpH=pH2013-pHpre-industrial) in the Mediterranean Sea, based upon hydrographic and carbonate chemistry data collected during the May 2013 MedSeA cruise. The concentrations of CANT were calculated using the composite tracer TrOCA. The CANT distribution shows that the most invaded waters (>60 µmol kgâ1) are those of the intermediate and deep layers in the Alboran, Liguro- and Algero-Provencal Sub-basins in the Western basin, and in the Adriatic Sub-basin in the Eastern basin. Whereas the areas containing the lowest CANT concentrations are the deep layers of the Eastern basin, especially those of the Ionian Sub-basin, and those of the northern Tyrrhenian Sub-basin in the Western basin. The acidification level in the Mediterranean Sea reflects the excessive increase of atmospheric CO2 and therefore the invasion of the sea by CANT. This acidification varies between â0.055 and â0.156 pH unit and it indicates that all Mediterranean Sea waters are already acidified, especially those of the Western basin where ÎpH is rarely less than â0.1 pH unit. Both CANT concentrations and acidification levels are closely linked to the presence and history of the different water masses in the intermediate and deep layers of the Mediterranean basins. Despite the high acidification levels, both Mediterranean basins are still highly supersaturated in calcium carbonate minerals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Deep Sea Research Part I: Oceanographic Research Papers - Volume 102, August 2015, Pages 1-15
Journal: Deep Sea Research Part I: Oceanographic Research Papers - Volume 102, August 2015, Pages 1-15
نویسندگان
Abed El Rahman Hassoun, Elissar Gemayel, Evangelia Krasakopoulou, Catherine Goyet, Marie Abboud-Abi Saab, Véronique Guglielmi, Franck Touratier, Cédric Falco,