文献类型：期刊文献

英文题名：The Distribution of Aerosols and Their Impacts on Chlorophyll-aDistribution in the South China Sea

作者：Shen, Chunyan[1];Zhao, Hui[1,2];Chen, Fajin[1,3];Xiao, Hongwei[4,5]

机构：[1]Guangdong Ocean Univ, Zhanjiang, Peoples R China;[2]Southern Marine Sci & Engn Guangdong Lab, Zhuhai, Peoples R China;[3]Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang, Peoples R China;[4]East China Univ Technol, Minist Educ, Key Lab Nucl Resources & Environm, Lab Atmospher Environm, Nanchang, Jiangxi, Peoples R China;[5]East China Univ Technol, Sch Water Resources & Environm Engn, Nanchang, Jiangxi, Peoples R China

年份：2020

卷号：125

期号：6

外文期刊名：JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES

收录：SCI-EXPANDED(收录号：WOS:000545943100002)、、WOS

基金：This study was supported by the Fund of the Natural Science Foundation of Guangdong Province (No. 2016A030313754, 2020A1515010496), the National Key R&D Program of China (2018YFD0900905), the Key Research Program of Frontier Sciences, CAS, Grant No. QYZDJ-SSW-DQC022, China National Key Research and Development Plan Project (2016YFC1401403), Project of Enhancing School with Innovation of Guangdong Ocean University (GDOU2016050260), and the Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) (ZJW-2019-08). We thank NASA's Ocean Color Working Group for providing the MODIS data of chlorophyll-a and AOD (http://oceancolor.gsfc.nasa.gov/), Remote Sensing Systems for the Windsat data (www.ssmi.com), Remote Sensing Systems for providing monthly merged SST products derived from the Tropical Rain Measuring Mission (TRMM) Microwave Imager (TMI) and the Advanced Microwave Scanning Radiometer-EOS (AMSR-E) (www.ssmi.com), and NOAA for the MLD data (http://www.nodc.noaa.gov/) and GlobColor's Working Group for the euphotic zone depth data (http://hermes.acri.fr).The in situ data used in this study are available at Figshare (https://figshare.com/s/81f25749644379dc7786).

语种：英文

外文关键词：aerosol; chlorophyll-alpha; wind; nutrient; the South China Sea

外文摘要：The distribution of aerosols and their impacts on chlorophyll-a(Chl-a) distribution were studied in the South China Sea (SCS). Seventeen years of aerosol optical depth (AOD) data, Chl-aconcentration data, wind speed (WS), and sea surface temperature (SST) from satellite observations were employed along with 2 years of in situ aerosol total suspended particulates (TSP), total nitrogen, NO3-, and NH(4)(+)data in this study. The results showed that under the influence of the Asian monsoon, the AOD values were higher during the winter (>0.12) and lower during the summer (<0.09). Higher aerosol levels were strongly associated with stronger wind conditions (r = 0.70 [AOD vs. WS];r = 0.67 [TSP vs. WS]). This study also revealed that Chl-aconcentrations were strongly modulated by aerosol deposition in SCS. Multiple correlation analyses between monthly Chl-aand environmental conditions (i.e., AOD, SST, and WS) in the SCS showed that the Chl-awere highly correlated with AOD (r = 0.31) and WS (r = 0.47). The higher partial correlation coefficients of Chl-awith AOD and WS suggested that WS played the most important role, followed by AOD. Aerosol deposition was therefore a main factor besides wind that determined the availability of nutrients at the surface ocean in the SCS, modulating the distribution of Chl-a. The contribution of nutrients (i.e., NO(3)(-)and NH4+) from aerosol dry and wet deposition to new production in the SCS accounted for approximately 10.32% to 28.87%.