کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9484373 1328339 2005 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Summer hypoxia in the northern Gulf of Mexico and its prediction from 1978 to 1995
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Summer hypoxia in the northern Gulf of Mexico and its prediction from 1978 to 1995
چکیده انگلیسی
The concentration of total Kjeldahl nitrogen (TKN) in surface waters and concentration of bottom water oxygen were directly related, as anticipated if organic loading from surface to bottom was from in situ processes. The TKN data were used to develop a predictive relationship that suggested there was no substantial hypoxia before the 1970s, which was before nitrate flux from the Mississippi River to the Gulf of Mexico began to rise. The peak frequency in monthly hypoxic events is two to three months after both the spring maximum in discharge and nitrate loading of the Mississippi River. These results support the conclusion that persistent, large-sized summer hypoxia is a recently-developed phenomenon that began in the 1970s or early 1980s.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 59, Issue 1, February 2005, Pages 65-77
نویسندگان
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