Remotely assessing and monitoring coastal and inland water quality in China: Progress, challenges and outlook,Critical Reviews in Environmental Science and Technology

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Remotely assessing and monitoring coastal and inland water quality in China: Progress, challenges and outlook
Critical Reviews in Environmental Science and Technology ( IF 11.4 ) Pub Date : 2019-08-23 , DOI: 10.1080/10643389.2019.1656511
Yujiu Xiong _{1,

2} , Yili Ran ₃ , Shaohua Zhao ₄ , Huan Zhao ₄ , Qixuan Tian ₅

Affiliation

Abstract China faces increasingly serious water scarcity due to the uneven distribution of available water resources, rapid economic development, and water pollution. The current war on water pollution by the Chinese government requires nationwide water quality information at high spatiotemporal resolution that can be obtained by only remote sensing (RS) methods. However, it is challenging to remotely retrieve such information from turbid Case-2 waters. This paper reviews four aspects of the major achievements in remotely sensed coastal and inland water quality in China. Specifically, achievements in atmospheric correction prior to water quality retrieval, progress in water-related sensor design, developments (improvements) to existing Case-2 water algorithms, and advances in oil spill and harmful algal bloom monitoring. Major challenges are identified, including: 1) a large mismatch exists between the water quality information required and RS datasets due to a lack of professional inland water sensors; 2) planned monitoring and field experiments for studying the optical properties of inland waters are scarce; and 3) RS of urban black odorous waters and international rivers is of great urgency. This review may provide scientific guidelines for obtaining information about coastal and inland waters and assist water resource managers and aquatic ecologists in controlling water pollution.

更新日期：2019-08-23

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