کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6386617 | 1627267 | 2016 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Environmental and climactic effects of chlorophyll-a variability around Iceland using reconstructed satellite data fields
ترجمه فارسی عنوان
اثرات محیطی و کوهستانی از کلروفیل - تغییرپذیری در اطراف ایسلند با استفاده از زمینه های اطلاعات ماهواره ای بازسازی شده
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
While remotely sensed data greatly improves the spatial and temporal resolution of ocean surface data, many data gaps still exist, particularly in northern latitude regions. We addressed this issue by reconstructing 8-day chl-a, sea surface temperature (SST) and photosynthetically available radiation (PAR) between 1998 and 2013. Direct matchups between the interpolated and in-situ chlorophyll-a data showed stronger correlations when both data types were combined although very little variation was found for the root mean square error across space and time. Chl-a shows a strong periodicity in the south and a weak periodicity in seasonal cycle in the north. Where periodicity is strong we found that correlations with the local environmental conditions were also the strongest. Wavelet coherence patterns showed that the phase correlation between SST, chl-a and NAO was dominated by an annual periodicity in the trends although the chl-a-NAO relationship was only significant after 2005. Ten regions were defined based on the k-means clustering of chl-a. Mean spring anomalies and the phenological timing of chl-a were defined for each region. The main drivers of spring anomalies were mean SST and PAR values while the spring timing was strongly correlated with the timing of MLD and PAR reaching threshold levels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Marine Systems - Volume 163, November 2016, Pages 31-42
Journal: Journal of Marine Systems - Volume 163, November 2016, Pages 31-42
نویسندگان
Niall McGinty, Kristinn Guðmundsson, KristÃn Ágústsdóttir, Gudrún Marteinsdóttir,