Digital Elevation Models: Comparative Study for varying topographic relief - Softcover

Paul, Daisy; Mandla, Venkata Ravibabu; Singh, Tejpal

 
9783659665233: Digital Elevation Models: Comparative Study for varying topographic relief
Softcover
ISBN 10: 3659665231 ISBN 13: 9783659665233
Verlag: LAP LAMBERT Academic Publishing, 2014

Inhaltsangabe

Digital Elevation Models (DEMs) are useful digital representation of earth’s topographic relief that has developed as a result of interaction of earth’s internal and external process, over a long temporal scale. However, accuracy of the extracted information and parameters highly rests on the quality (resolution) of input DEMs. Therefore, this book is presented to study a comparison between 30m-ASTER and 90m-SRTM DEMs is carried out in order to ascertain their suitability and accuracy for geomorphological analysis. A comparison is also done with SRTM 90 resampled to 30m to emphasise the importance of resolution, where in the extracted parameters were found to be similar to that obtained with that of ASTER 30 DEM. Geomorphological parameters related to drainage patterns and basin morphology have been compared over varying topographic relief. Besides the resolution, the thresholding of the flow accumulation or drainage area was also found to strongly control the morphometric results, which was in turn controlled by the resolution of the DEM.

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Reseña del editor

Digital Elevation Models (DEMs) are useful digital representation of earth's topographic relief that has developed as a result of interaction of earth's internal and external process, over a long temporal scale. However, accuracy of the extracted information and parameters highly rests on the quality (resolution) of input DEMs. Therefore, this book is presented to study a comparison between 30m-ASTER and 90m-SRTM DEMs is carried out in order to ascertain their suitability and accuracy for geomorphological analysis. A comparison is also done with SRTM 90 resampled to 30m to emphasise the importance of resolution, where in the extracted parameters were found to be similar to that obtained with that of ASTER 30 DEM. Geomorphological parameters related to drainage patterns and basin morphology have been compared over varying topographic relief. Besides the resolution, the thresholding of the flow accumulation or drainage area was also found to strongly control the morphometric results, which was in turn controlled by the resolution of the DEM.

Biografía del autor

Dr. Venkata Ravibabu Mandla, PhD., is a Professor, Division and Program Chair in the Civil Engineering Department, VIT University,India. He is a recipient of Australian Endeavour Award, his research includes Geomatics applications towards energy, environmental and climate change, especially Geo-CROP, biomass and climate effects on agriculture

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2014
Sprache
Englisch
ISBN 10 
3659665231
ISBN 13 
9783659665233
Einband
Tapa blanda
Anzahl der Seiten
148
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