Research on the dissipation of green tide and its influencing factors in the Yellow Sea based on Google Earth Engine

MARINE POLLUTION BULLETIN

卷:172

Article

Li, Dongxue^1,2,3  Gao, Zhiqiang^1,2  Xu, Fuxiang⁴ 

[1] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China

[2] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Shandong Technol & Business Univ, Sch Publ Adm, Yantai 264005, Shandong, Peoples R China

关键词: Green tide;    Dissipation;    Multi-source satellite data;    Long-term;    Environmental factors;    Influence;   

DOI  :  10.1016/j.marpolbul.2021.112801

来源: Elsevier

【 摘 要 】

Since 2007, the outbreak of green tides has become the most serious ecological problem in the Yellow Sea. In this study, a new method was used to identify green tides in multi-source satellite data from 2007 to 2020, and the relationship between the conditions necessary for green tide dissipation and other environmental factors was discussed. We found a wavy trend of green tide scales over the 14-year dissipation period. The dissipation direction was influenced by sea surface wind (SSW) and sea surface circulation (SSC). Under the action of northeast moving SSW and SSC, green tides move away from the shore and drift northward; under the action of northwest or southwest moving SSW and SSC, they moved towards the shore and drift southward. The date of dissipation was influenced by sea surface temperature (SST) and precipitation, and high SST accelerated the process of green tide dissipation, while precipitation slowed it down.

【 授权许可】

Free