Remote Sensing | |
Use of Radarsat-2 and Landsat TM Images for Spatial Parameterization of Manning’s Roughness Coefficient in Hydraulic Modeling | |
Joseph Mtamba2  Rogier van der Velde3  Preksedis Ndomba2  Vekerdy Zoltán3  Felix Mtalo2  Nicolas Baghdadi1  | |
[1] Department of Water Resources Engineering, University of Dar es Salaam, P.O. Box 35131, 14115 Dar es Salaam, Tanzania;;Department of Water Resources Engineering, University of Dar es Salaam, P.O. Box 35131, 14115 Dar es Salaam, Tanzania; E-Mails:;Department of Water Resources, Faculty of Geo-Information and Earth Observation (ITC), University of Twente, P.O. Box 6, AA Enschede7500, The Netherlands; E-Mails: | |
关键词: synthetic aperture radar; hydraulic roughness; relative surface roughness; vegetation mapping; hydraulic modeling; | |
DOI : 10.3390/rs70100836 | |
来源: mdpi | |
【 摘 要 】
Vegetation resistance influences water flow in floodplains. Characterization of vegetation for hydraulic modeling includes the description of the spatial variability of vegetation type, height and density. In this research, we explored the use of dual polarized Radarsat-2 wide swath mode backscatter coefficients (σ°) and Landsat 5 TM to derive spatial hydraulic roughness. The spatial roughness parameterization included four steps: (i) land use classification from Landsat 5 TM; (ii) establishing a relationship between σ° statistics and vegetation parameters; (iii) relative surface roughness (
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190017598ZK.pdf | 1595KB | download |