کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8906324 | 1634208 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-decadal timeseries of the Indonesian throughflow
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
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چکیده انگلیسی
NCEP reanalysis wind data from 1948 to 2016 and Makassar Strait transport from 2004 to 2011 are used to construct a multi-decadal timeseries of 0-300â¯m Makassar Throughflow using a back-propagation (BP) neural network. Based on the 2004-2015 Makassar timeseries, 0-300â¯m transport accounts for 75% (±8%) of the total Makassar throughflow. Results from the INSTANT program 2004-2006 indicate that the Makassar throughflow provides 78% of the Indonesian Throughflow (ITF) within the upper 1000â¯m (77% of the full depth ITF). As the ITF is driven largely by North Pacific winds, we use the North Pacific zonal wind to construct a 68-year timeseries of 0-300â¯m Makassar Throughflow to trace interannual to decadal variability. The constructed timeseries has a mean transport of 9.2â¯Â±â¯1â¯Sv within the 0-300â¯m layer. Using the 2004-2015 statistics this converts to a total Makassar Strait throughflow of 12.2â¯Sv and using the 2004-2006 INSTANT data, to a total ITF within the upper kilometer of 14.7â¯Sv. The Makassar throughflow decreases from 1948 to 1995, increases after 1995, then rapidly decreases after 2013, which agrees with the Pacific to Indian inter-ocean pressure difference across the Indonesian seas based on SODA reanalysis with a correlation coefficients of 0.6. The Pacific Decadal Oscillation (PDO) and El Nino-Southern Oscillation (ENSO), have correlation coefficients with the constructed Makassar throughflow of â0.6 and â0.4 respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dynamics of Atmospheres and Oceans - Volume 81, March 2018, Pages 84-95
Journal: Dynamics of Atmospheres and Oceans - Volume 81, March 2018, Pages 84-95
نویسندگان
Mingting Li, Arnold L. Gordon, Jun Wei, Laura K. Gruenburg, Guoqing Jiang,