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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Improving MODIS spatial resolution for snow mapping using wavelet fusion and ARSIS concept
IEEE Geoscience and Remote Sensing Letters, Volume 5, No. 1, Year 2008
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Description
We propose to fuse the high spatial content of two 250-m spectral bands of the Moderate Resolution Imaging Spectroradiometer (MODIS) into its five 500-m bands using wavelet-based multiresolution analysis. Our objective was to test the effectiveness of this technique to increase the accuracy of snow mapping in mountainous environments. To assess the performance of this approach, we took advantage of the simultaneity between the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and MODIS sensors. With a 15-m spatial resolution, the ASTER sensor provided reference snow maps, which were then compared to MODIS-derived snow maps. The benefit of the method was assessed through the investigation of various metrics, which showed an improvement from 3% to 20%. Therefore, the enhanced snow map is of great benefit for environmental and hydrological applications in steep terrain. © 2007 IEEE.
Authors & Co-Authors
Sirguey, Pascal
New Zealand, Dunedin
University of Otago
Mathieu, Renaud
New Zealand, Dunedin
University of Otago
Arnaud, Yves
France, Saint Martin D'heres
Institut Des Géosciences de L'environnement Ige
Statistics
Citations: 97
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1109/LGRS.2007.908884
ISSN:
1545598X
Research Areas
Environmental