Assessing the water quality dynamics in the coastal waters of Kollam(Kerala,India)using Sentinel images  

作　　者：Anagha Prasad P.Rama Chandra Prasad N.Srinivasa Rao 

机构地区：[1]Center for Earth,Ocean and Atmospheric Sciences,University of Hyderabad-Hyderabad,Telangana 500046,India [2]Lab for Spatial Informatics,International Institute of Information Technology-Hyderabad,Gachibowli,Hyderabad,Telangana 500032,India [3]Indian National Centre for Ocean Information Services,Hyderabad,Telangana 500090,India

出　　处：《Anthropocene Coasts》2024年第1期125-141,共17页人新世海岸(英文)

摘　　要：Coastal waters are complex,dynamic,and sensitive,and any change in the system impacts the marine environment and life.Coastal water quality has been decreasing due to the incursion of anthropogenic derived waste and toxins into the ocean.This study investigates water quality along the Kollam coast of Kerala State,India,using Sentinel-2 Multispectral Imager(MSI)data for the period of 2019-2022.Four key water quality parameters,chlorophyll(Chl-a),total suspended matter(TSM),turbidity,and coloured dissolved organic matter(CDOM),were analysed for seasonal variations and driving factors.The study highlights the potential of web-based platforms like Google Earth Engine for facilitating large-scale water quality assessments.The results reveal a distinct seasonal pattern in all parameters,primarily influenced by monsoonal riverine discharge and anthropogenic activities as contributing factors to water quality degradation.Overall,the study emphasises the need for comprehensive monitoring and management strategies to ensure the long-term sustainability of the coastal ecosystem.

关 键 词：Google earth engine Kollam coast Sentinel imagery Seasonal variation Water quality 

分 类 号：P73[天文地球—海洋科学]