Incorporation of slope and rainfall variability in channel network extraction from DEM data at basin scale

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dc.contributor.author Kumar, Vaibhav
dc.contributor.author Kaushal, Rahul Kumar
dc.contributor.author Taloor, Ajay Kumar
dc.contributor.author Jain, Vikrant
dc.coverage.spatial United Kingdom
dc.date.accessioned 2021-02-22T13:54:21Z
dc.date.available 2021-02-22T13:54:21Z
dc.date.issued 2021-02
dc.identifier.citation Kumar, Vaibhav; Kaushal, Rahul Kumar; Taloor, Ajay Kumar and Jain, Vikrant, "Incorporation of slope and rainfall variability in channel network extraction from DEM data at basin scale", Geocarto International, DOI: 10.1080/10106049.2021.1886340, Feb. 2021. en_US
dc.identifier.issn 1010-6049
dc.identifier.issn 1752-076
dc.identifier.uri https://doi.org/10.1080/10106049.2021.1886340
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/6304
dc.description.abstract This work presents an analytical framework that includes slope and rainfall variability with value of the critical area in defining a threshold for channel initiation processes for the whole river basin. The study overcomes the existing limitation of application of constant threshold for extracting channels throughout the basin by proposing slope and rainfall dependent variable threshold. The proposed algorithm successfully captures the spatial variability in drainage patterns at basin-scale characterized by different topographic characteristics. As basin-scale studies are mostly carried out using coarse-resolution Digital Elevation Model (DEM), this methodology has been developed using SRTM data of 30?m spatial resolution. The resultant drainage pattern was compared with the published map based on field observations, which shows a closer match with field conditions. A front-end application was developed to implement the methods as an end to end process to make user interaction simpler.
dc.description.statementofresponsibility by Vaibhav Kumar, Rahul Kumar Kaushal, Ajay Kumar Taloor and Vikrant Jain
dc.language.iso en_US en_US
dc.publisher Taylor and Francis en_US
dc.subject Drainage network en_US
dc.subject Basin-scale en_US
dc.subject DEM en_US
dc.subject Remote sensing en_US
dc.subject Algorithm en_US
dc.title Incorporation of slope and rainfall variability in channel network extraction from DEM data at basin scale en_US
dc.type Article en_US
dc.relation.journal Geocarto International


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