文献类型：期刊文献

英文题名：Trends in Concentration and Flux of Total Suspended Matter in the Irrawaddy River

作者：Zheng, Zhuoqi[1,2];Wang, Difeng[2,3];Fu, Dongyang[4];Gong, Fang[2];Huang, Jingjing[2,5];He, Xianqiang[2];Zhang, Qing[2]

机构：[1]Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China;[2]Minist Nat Resources, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Peoples R China;[3]Minist Nat Resources, Daya Bay Observat & Res Stn Marine Risks & Hazards, Hangzhou 310012, Peoples R China;[4]Guangdong Ocean Univ, Sch Elect & Informat Engn, Zhanjiang 524025, Peoples R China;[5]Zhejiang Univ, Ocean Coll, Hangzhou 316021, Peoples R China

年份：2024

卷号：16

期号：5

外文期刊名：REMOTE SENSING

收录：SCI-EXPANDED(收录号：WOS:001182961900001)、、EI(收录号：20241115748703)、Scopus(收录号：2-s2.0-85187445455)、WOS

基金：The authors would like to thank the USGS for excellent Landsat and Sentinel data. We also thank the satellite ground station and the satellite data processing and sharing center of SOED/SIO for help with the data processing. Our deepest gratitude goes to the editors and reviewers for their careful work and thoughtful suggestions.

语种：英文

外文关键词：total suspended matter; Irrawaddy; Landsat; flux estimation

外文摘要：Large rivers without hydrological data from remote sensing observations have recently become a hot research topic. The Irrawaddy River is among the major tropical rivers worldwide; however, published hydrological data on this river have rarely been obtained in recent years. In this paper, based on the existing measured the total suspended matter flux (FTSM) and discharge data for the Irrawaddy River, an inversion model of the total suspended matter concentration (CTSM) is constructed for the Irrawaddy River, and the CTSM and FTSM from 1990 to 2020 are estimated using the L1 products of Landsat-8 OLI/TIRS and Landsat-5 TM. The results show that over the last 30 years, the FTSM of the Irrawaddy River decreased at a rate of 3.9 Mt/yr, which is significant at the 99% confidence interval. An increase in the vegetation density of the Irrawaddy Delta has increased the land conservation capacity of the region and reduced the inflow of land-based total suspended matter (TSM). The FTSM of the Irrawaddy River was estimated by fusing satellite data and data measured at hydrological stations. The research method employed in this paper provides a new supplement to the existing hydrological data for large rivers.