NDLI: Limitations in the Hydrologic Applications of C-Band SRTM DEMs in Low-Relief Settings

Content Provider	IEEE Xplore Digital Library
Author	Kon Joon Bhang Schwartz, F.
Copyright Year	2004
Abstract	The shuttle radar topography mission (SRTM) data represent a major breakthrough in terms of providing accurate and consistent elevation data on a worldwide basis. These data are being used in many scientific applications, hydrology in particular. This letter examines the feasibility of using SRTM data for hydrologic characterizations, particularly in a region of low relief exemplified by the Otter Tail basin in Minnesota. The Version 2 SRTM data product provides a useful starting place for estimating the stage for larger lakes. Indications for Minnesota are that these estimates are accurate to several meters but are biased toward underestimation. Over land, the inherent noise in the data makes watershed boundary and stream network extraction problematic. We found large errors in estimated basin shape and area, and in the geometry of extracted stream networks, as compared to more traditional U.S. Geological Survey data products.
Sponsorship	IEEE Geoscience and Remote Sensing Society
Starting Page	497
Ending Page	501
Page Count	5
File Size	1063173
File Format	PDF
ISSN	1545598X
Volume Number	5
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Data mining Radar applications Surfaces Hydrology Tail Lakes Noise shaping Shape Geometry Geology synthetic aperture radar (SAR) Computer-aided analysis hydrology modeling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Geotechnical Engineering and Engineering Geology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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