Capturing Secchi disk depth by using Sentinel-2 MSI imagery in Jiaozhou Bay, China from 2017 to 2021

被引：6
作者：
Yang, Lei [1 ]
Yu, Dingfeng [1 ,2 ]
Yao, Huiping [3 ]
Gao, Hao [1 ]
Zhou, Yan [1 ]
Gai, Yingying [1 ]
Liu, Xiaoyan [1 ]
Zhou, Maosheng [1 ]
Pan, Shunqi [2 ]
机构：
[1] Qilu Univ Technol, Inst Oceanog Instrumentat, Shandong Acad Sci, Qingdao 266100, Peoples R China
[2] Cardiff Univ, Hydroenvironm Res Ctr, Sch Engn, Cardiff CF24 3AA, Wales
[3] China Univ Petr, Coll Oceanog & Space Informat, Qingdao 266580, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2022年 / 185卷
基金：
中国国家自然科学基金;
关键词：
Water clarity; Remote sensing; Offshore waters; Natural factors; Human activities; WATER CLARITY; OCEAN TRANSPARENCY; MERIS; VALIDATION; MODIS; SEA;
D O I：
10.1016/j.marpolbul.2022.114304
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Water clarity is a key parameter for assessing changes of aquatic environment. Coastal waters are complex and variable, remote sensing of water clarity for it is often limited by low spatial resolution. The Sentinel-2 Multi -Spectral Instrument (MSI) imagery with a resolution of up to 10 m are employed to solve the problem from 2017 to 2021. Distribution and characteristics of Secchi disk depth (SDD) in Jiaozhou Bay (JZB) are analyzed. Subtle changes in localized small areas are discovered, and main factors affecting the changes are explored. Among natural factors, precipitation and wind play dominant roles in variation in SDD. Human activities have a sig-nificant influence on transparency, among which fishery farming has the greatest impact. This is clearly evi-denced by the significant improvement of SDD in JZB due to the sharp decrease in human activities caused by coronavirus disease 2019 (COVID-19).
引用
收藏
页数：16
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