Rainfall-enhanced blooming in typhoon wakes

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題名:	Rainfall-enhanced blooming in typhoon wakes
作者:	黃如瑤;Lin, Y.-C.;Oey, L.-Y.
貢獻者:	地球科學學院水文與海洋科學研究所
關鍵詞:	704/106;704/829/2737;Humanities and Social Sciences;multidisciplinary;Science
日期:	2016-08-22
上傳時間:	2026-04-23 11:08:22 (UTC+8)
出版者:	Nature Publishing Group;London: Springer Science and Business Media LLC
摘要:	摘要： AbstractStrong phytoplankton blooming in tropical-cyclone (TC) wakes over the oligotrophic oceans potentially contributes to long-term changes in global biogeochemical cycles. Yet blooming has traditionally been discussed using anecdotal events and its biophysical mechanics remain poorly understood. Here we identify dominant blooming patterns using 16 years of ocean-color data in the wakes of 141 typhoons in western North Pacific. We observe right-side asymmetric blooming shortly after the storms, attributed previously to sub-mesoscale re-stratification, but thereafter a left-side asymmetry which coincides with the left-side preference in rainfall due to the large-scale wind shear. Biophysical model experiments and observations demonstrate that heavier rainfall freshens the near-surface water, leading to stronger stratification, decreased turbulence and enhanced blooming. Our results suggest that rainfall plays a previously unrecognized, critical role in TC-induced blooming, with potentially important implications for global biogeochemical cycles especially in view of the recent and projected increases in TC-intensity that harbingers stronger mixing and heavier rain under the storm. 其他題名： Sci Rep 出版者： London: Springer Science and Business Media LLC 出版日期： 2016-08-22 出處： Scientific Reports, 2016-08, Vol.6 (1), p.31310--31310, Article 31310 資源來源： Publicly Available Content Database 版權： The Author(s) 2016 版權： Copyright © 2016, The Author(s) 2016 The Author(s) 識別號： ISSN: 2045-2322 識別號： EISSN: 2045-2322 識別號： DOI: 10.1038/srep31310 識別號： PMID: 27545899
顯示於類別:	[水文與海洋科學研究所] 期刊論文

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