文献类型：期刊文献

英文题名：Response of Total Suspended Sediment and Chlorophyll-a Concentration to Late Autumn Typhoon Events in the Northwestern South China Sea

作者：Li, Junyi[1,2];Zheng, Huiyuan[1,3];Xie, Lingling[2];Zheng, Quanan[1,4];Ling, Zheng[1,2];Li, Min[2]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Lab Coastal Ocean Variat & Disaster Predict, Zhanjiang 524088, Peoples R China;[2]Key Lab Climate Source & Environm Continent Shelf, Zhanjiang 524088, Peoples R China;[3]Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China;[4]Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA

年份：2021

卷号：13

期号：15

外文期刊名：REMOTE SENSING

收录：SCI-EXPANDED(收录号：WOS:000682340900001)、、EI(收录号：20213110714185)、Scopus(收录号：2-s2.0-85111558855)、WOS

基金：Supported by the National Natural Science Foundation of China (41706025, 41776034, 41476009), the Matched Grant of Guangdong Ocean University (P17263), the Innovation Team Project of Guangdong Ocean University (CXTD2019001, 570119020), College Students' innovation and Entrepreneurship Project (CXXL2019151), the Guangdong Provincial College Innovation Team Project (2019KCXTF021), the First-class Discipline Plan of Guangdong Province (231419012, 231919030), and the Open Fund of the Key Laboratory of Ocean Circulation andWaves, Chinese Academy of Sciences, the Program for Scientific Research Start-up Funds of Guangdong Ocean University.

语种：英文

外文关键词：total suspended sediment; chlorophyll-a bloom; typhoon; South China Sea; alongshore current

外文摘要：Strong typhoon winds enhance turbulent mixing, which induces sediment to resuspend and to promote chlorophyll-a (Chl-a) blooms in the continental shelf areas. In this study, we find limited Chl-a responses to three late autumn typhoons (typhoon Nesat, Mujigae and Khanun) in the northwestern South China Sea (NWSCS) using satellite observations. In climatology, the Chl-a and total suspended sediment (TSS) concentrations are high all year round with higher value in autumn in the offshore area of the NWSCS. After the typhoon passage, the Chl-a concentration increases slightly (23%), while even TSS enhances by 280% on the wide continental shelf of the NWSCS. However, in the southern area, located approximately 100 km from the typhoon tracks, both TSS and Chl-a concentrations increase 160% and 150% after typhoon passage, respectively. In the deeper area, the increased TSS concentration is responsible for the considerable increase of the Chl-a. An empirical analysis is applied to the data, which reveals the TSS and Chl-a processes during typhoon events. The results of this study suggest a different mechanism for Chl-a concentration increase and thus contribute toward further evaluation of typhoon-induced biological responses.