کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7699005 | 1496640 | 2017 | 60 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controls on dissolved and particulate iron distributions in surface waters of the Western Antarctic Peninsula shelf
ترجمه فارسی عنوان
کنترل روی توزیع های حل شده و ذرات آهن در آبهای سطوح شبه جزیره ی جنوب غربی قطب جنوب
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
چکیده انگلیسی
Iron concentrations varied widely. Both dissolved and particulate Fe were high in coastal waters (up to 8 nmol kgâ 1 and 42 nmol kgâ 1, respectively). In contrast, very low Fe concentrations (< 0.1 nmol kgâ 1) were widespread in mid- to outer-shelf surface waters, especially in the northern half of the sampling grid, suggesting possible Fe limitation of primary production on the shelf. Sea ice and dust inputs of Fe were minor, although their relative importance increased with distance from shore due to the larger near-shore sources. Sedimentary inputs were inferred from manganese distributions; these were more significant in the northern portion of the grid, and showed interannual variation in intensity. Overall, the interannual distribution of Fe was most closely correlated to that of meteoric water (glacial melt and precipitation). Although the Fe concentrations and relative contributions of dissolved and particulate Fe attributed to meltwater were variable throughout the sampling region, increasing glacial meltwater flux can be expected to increase the delivery of Fe to surface waters of the coastal WAP in the future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Chemistry - Volume 196, 20 November 2017, Pages 81-97
Journal: Marine Chemistry - Volume 196, 20 November 2017, Pages 81-97
نویسندگان
Amber L. Annett, Jessica N. Fitzsimmons, Marie J.M. Séguret, Maria Lagerström, Michael P. Meredith, Oscar Schofield, Robert M. Sherrell,