The Distribution of Aerosols and Their Impacts on Chlorophyll‐a Distribution in the South China Sea,Journal of Geophysical Research: Biogeosciences

当前位置： X-MOL 学术 › J. Geophys. Res. Biogeosci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

The Distribution of Aerosols and Their Impacts on Chlorophyll‐a Distribution in the South China Sea
Journal of Geophysical Research: Biogeosciences ( IF 3.7 ) Pub Date : 2020-04-14 , DOI: 10.1029/2019jg005490
Chunyan Shen ₁ , Hui Zhao _{1,

2} , Fajin Chen _{1,

3} , Hongwei Xiao _{4,

5}

Affiliation

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‐a concentration 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 NH₄⁺ 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‐a concentrations were strongly modulated by aerosol deposition in SCS. Multiple correlation analyses between monthly Chl‐a and environmental conditions (i.e., AOD, SST, and WS) in the SCS showed that the Chl‐a were highly correlated with AOD (r = 0.31) and WS (r = 0.47). The higher partial correlation coefficients of Chl‐a with 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., NO₃⁻ and NH₄⁺) from aerosol dry and wet deposition to new production in the SCS accounted for approximately 10.32% to 28.87%.

更新日期：2020-04-14

点击分享查看原文

点击收藏

阅读更多本刊最新论文

全部期刊列表>>