wp-10 satellite based flood monitoring system of pilot areas of china and india progress of bnu part...
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WP-10 Satellite based flood monitoring system of pilot areas of China and India
Progress of BNU Part(2008 May – 2009 April )
LIU Zhingang, JIANG Weiguo, LI Shihua, YANG Bing
(Beijing Normal University, Beijing, China)
LU Jingxuan, DING Zhixiong, CHEN Kangning
(Remote Sensing Technology Application Centre in China Institute of Water Resources and Hydropower Research )
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Description of Work
Task 10.1. Early flood warning using surface wetness indicator derived from satellite data (ULP, BNU);
Task 10.2. Real time flood forecasting using data from the atmospheric-hydrologic network (NIH, BNU);
Task 10.3. Mapping and visualizing flood inundation, flood risk using combined satellite data and hydraulic models (BNU, NIH)
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Task 10.1. Early flood warning using surface wetness indicator derived from satellite data
Development of the surface wetness indicator
Collect the flood information of last 30 years at Yangtze River (BNU)
Times series analysis(ULP, BNU )
Case studies(ULP, BNU )
Partly-Finished
Unfinished
Finished
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flood location of last 30 years at Yangtze River
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Task 10.2. Real time flood forecasting using data from the atmospheric-hydrologic network
Case studies(ULP, BNU ) Partly-Finished
Unfinished
Xiangjiang River(BNU )
Heihe River(BNU )
Time series analysis of historical hydro-meteorological data
Finished
Development of flood forecasting models
Black-Box ANN/ Fuzzy logic (BNU)
Kalman filters
Data have been collected
ANN model has been
developed.
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The TANK Rainfall-runoff forecasting model
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Task 10.3. Mapping and visualizing flood inundation, flood risk using combined satellite data and hydraulic models
Case study(BNU )
Partly-Finished
Unfinished
Mapping flood inundated area(BNU: Xiangjiang River)
Finished
flood inundation, flood hazard and flood risk map(BNU: Xiangjiang River)
Simulation of flood inundation, depth and areal extent
(BNU: Xiangjiang River)
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Vulnerability factors data
Flood risk and impact maps
Flood risk analysis
Hydro-dynamic model (HEC-RAS)
Remote Sensing image Socio-Economic data
Population
Hazard factors data
Population density map
Economic Value map
Flood impact analysis
Hydrologic data
DEM
Land use
Flood area Flood depth
Flood frequency
Flood risk assessment and impact evaluation model
Assessment method
Remote Sensing image
Partly-Finished
Unfinished
Finished
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The Changsha channel segment of Xiang Jiang River is selected as study area in Hunan Province of China
Xiang Jiang River
Changsha
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Collect the historical hydrologic data of the Changsha channel segment of Xiang Jiang River
Study their change statuses and analysis their development trends through the Time series analyzing method.
Time Series Analysis for Water Level of the Observation Station
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Buy the 12 scenes of scale 1:10,000 topography maps (DRG format)
Digitize and process it from Raster into Vector format data (with ArcGIS 9.x software).
topography maps
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LANDSAT ETM (2000)
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the River Analysis System of Hydrologic Engineering Centers (HEC- RAS)
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Risk : “Expected losses (of lives, persons injured, property damaged, and economic activity disrupted) due to a particular hazard for a given area and reference period. Based on mathematical calculations, Risk is the product of hazard and vulnerability”.
Where
Hazard : A threatening event, or the probability of occurrence of a potentially damaging phenomenon within a given time period and area
Vulnerability : Degree of loss resulting from a potentially damaging phenomenon.
----United Nations Department of Humanitarian Affairs, 1992
ity)vulnerabilf(hazard,Risk
Risk Evaluation Method