River habitat mapping using Airborne Imaging Spectrometry (CASI-3)
Anandakumar, R., Milton, E.J. and Sear, D.A. (2008) River habitat mapping using Airborne Imaging Spectrometry (CASI-3). In, Proceedings of the Remote Sensing and Photogrammetry Society Conference: “Measuring Change in the Earth System”. University of Exeter, 15-17 September 2008. Remote Sensing and Photogrammetry Society Conference: “Measuring Change in the Earth System” Nottingham, UK, Remote Sensing & Photogrammetry Society, 1-4.
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Description/Abstract
A Compact Airborne Spectrographic Imager (CASI-2) is used to map the depth of the River Test, a chalk stream in southern England. Lyzenga’s (1981) method is used to decouple variations in water depth from changes in bed material type. The results show that atmospheric correction improves the relationship between water depth and the logarithm of CASI reflectance, especially in visible wavelengths. The estimated accuracy of water depth was ± 20 cm, but validation was difficult due to the need to precisely co-locate the ground samples and the CASI data.
| Item Type: | Book Section |
|---|---|
| Uncontrolled Keywords: | casi, river habitat survey, water depth, atmospheric correction, atcor |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences G Geography. Anthropology. Recreation > GB Physical geography T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | University Structure - Pre August 2011 > School of Geography > Environmental Processes and Change University Structure - Pre August 2011 > School of Geography > Remote Sensing and Spatial Analysis |
| ePrint ID: | 63468 |
| Deposited On: | 09 Oct 2008 |
| Last Modified: | 07 Jan 2011 09:34 |
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