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INTERNATIONAL INSTITUTE FOR GEO-INFORMATION SCIENCE AND EARTH OBSERVATION Flood Hazard Assessment: ILWIS Case study. Drs. Nanette C. Kingma
Generalized physiographic map. From: Geological map of Bangladesh, 1990.
Flood map Bangladesh.
Extreme flooding: 1988.
1987 : Dry Season. (SPOT band 1) SPOT band 1 1987 dry-season
1987 : Dry Season. (SPOT band 2) SPOT band 2 1987 dry-season
1987 : Dry Season. (SPOT band 3). SPOT band 3 1987 dry-season
1987 : Dry Season. SPOT band 1 1987 dry-season SPOT band 3 1987 dry-season SPOT band 2 1987 dry-season
1987 : Moderate Flood. (SPOT band 1). SPOT band 1 1987 flood
1987 : Moderate Flood. (SPOT band 2). SPOT band 2 1987 flood
1987 : Moderate Flood. (SPOT band 3). SPOT band 3 1987 flood
Moderate Flood 1987 SPOT band 1 1987 flood SPOT band 2 1987 flood SPOT band 3 1987 flood
1988 Severe Flood. (SPOT band 1). SPOT band 1 1988 flood
1988 Severe Flood. (SPOT band 2). SPOT band 2 1988 flood
1988 Severe Flood. (SPOT band 3). SPOT band 3 1988 flood
Severe flood 1988 SPOT band 1 1988 flood SPOT band 2 1988 flood SPOT band 3 1988 flood
False Color Composite DRY 1987. False color composite: FCCdry87.
False Color Composite MFL87 False color composite: FCCmfl87.
False Color Composite Severe Flood 1988. False color composite: Fccfl88.
Overview DRY 87 FL 88 MFL 87
Why band ratios Clouds Shadows
Band Ratio DRY 1987. Brdry87: Band ratio: band3/band1 dry-87.
Band Ratio Moderate Flood 1987 Brmfl87: Band ratio: band3/band1 mfl-87.
Band Ratio Severe Flood 1988 Brfl88: Band ratio: band3/band1 flood-88.
Slicing of Brdry87 into land and water. Dry87wl: Slicing into water and land of band ratio 3/1 dry 87.
Slicing of Brmfl87 into land and water. Slicing into water and land of band- ratio 3/1 mfl-87.
Slicing of Brfl88 into land and water. Fl88wl: Slicing into water and land of band- ratio 3/1 flood88.
Cross operation result: dry87wl and mfl87wl. Cross dry87wl and mfl87wl output map Dryfl.
Crossing of: DryFl with fl88wl. Final result map Crossing of: dry87wl, mfl87wl, and fl88wl.
Bangladesh: Confluence Ganges - Meghna. Cross table: maps drywl-mfl87wl Cross table:final map drymflcr - fl88wl.
Bangladesh: Confluence Ganges - Meghna. Final result map crossing of: dry87wl, mfl87wl, and fl88wl; with legend.
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For the lack of ground data the verification of the TRMM performance could not be checked for the entire catchments, however it has been tested over Bangladesh.
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