کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2069942 1078443 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Demonstration of a new indicator for studying upwelling in the northern South China Sea*
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Demonstration of a new indicator for studying upwelling in the northern South China Sea*
چکیده انگلیسی

In order to demonstrate that silicate (SiO3-Si) can be used as an indicator to study upwelling in the northern South China Sea, hierarchical cluster analysis (CA) and principle component analysis (PCA) were applied to analyse the metrics of the data consisting of 14 physical-chemical-biological parameters at 32 stations. CA categorized the 32 stations into two groups (low and high nutrient groups). PCA was applied to identify five Principal Components (PCs) explaining 78.65% of the total variance of the original data. PCA found important factors that can describe nutrient sources in estuarine, upwelling, and non-upwelling areas. PC4, representing the upwelling source, is strongly correlated to SiO3-Si. The spatial distribution of silicate from the surface to 200 m  depth clearly showed the upwelling regions, which is also supported by satellite observations of sea surface temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Oceanologia - Volume 53, Issue 2, June 2011, Pages 605–613, 614e, 614–622
نویسندگان
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