Automated quantification of river morphodynamics from satellite imagery for large multithreaded rivers

J. Rawee, F. Huthoff, D.C.M. Augustijn, M. van Hoek

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

In recent years, various studies have appeared on (automated) processing of river morphodynamics from satellite images. A key challenge in such approaches is to use appropriate and consistent methods to quantify eroded and deposited areas and channel migration rates. This is particularly important in highly dynamic multi-threaded rivers, where apparent bank lines can move significantly with changing water levels. To assure a consistent treatment of bank lines we use a methodology where channels are identified by detecting the vegetation boundary. We apply this methodology to a 250 km reach of the Ayeyarwady river (Myanmar) and extract metrics for eroded and deposited areas and channel migration. These morphological metrics are compared to hydrologic conditions, and significant correlations were found. It shows that the proposed method may help to classify and better understand river dynamics rivers of large multithreaded rivers.
Original languageEnglish
Title of host publicationRiver Flow 2020
Subtitle of host publicationProceedings of the 10th Conference on Fluvial Hydraulics (Delft, Netherlands, 7-10 July 2020)
EditorsWim Uijttewaal, Mario J. Franca, Daniel Valero, Victor Chavarrias, Claudia Ylla Arbos, Ralph Schielen, Alessandra Crosato
Place of PublicationLondon
PublisherCRC Press/Balkema
Pages1213-1221
ISBN (Electronic)978-1-003-11095-8
ISBN (Print)978-0-367-62773-7
Publication statusPublished - 2020
Event10th Conference on Fluvial Hydraulics, River Flow 2020 - Delft, Netherlands
Duration: 7 Jul 202010 Jul 2020
Conference number: 10

Conference

Conference10th Conference on Fluvial Hydraulics, River Flow 2020
Abbreviated titleRiver Flow
CountryNetherlands
CityDelft
Period7/07/2010/07/20

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