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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 A

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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

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WP-10 Satellite based flood monitoring system of pilot areas of China and IndiaProgress 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 )

description of work
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)
task 10 1 early flood warning using surface wetness indicator derived from satellite data
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 )

Finished

Partly-Finished

Unfinished

task 10 2 real time flood forecasting using data from the atmospheric hydrologic network
Task 10.2. Real time flood forecasting using data from the atmospheric-hydrologic network

Time series analysis of historical hydro-meteorological data

Data have been collected

Heihe River

(BNU )

Xiangjiang River

(BNU )

Development of flood forecasting models

Black-Box

Kalman filters

ANN/ Fuzzy logic

(BNU)

ANN model has been developed.

Case studies

(ULP, BNU )

Finished

Partly-Finished

Unfinished

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Task 10.3. Mapping and visualizing flood inundation, flood risk using combined satellite data and hydraulic models

Simulation of flood inundation, depth and areal extent

(BNU: Xiangjiang River)

Mapping flood inundated area

(BNU: Xiangjiang River)

flood inundation, flood hazard and flood risk map

(BNU: Xiangjiang River)

Case study

(BNU )

Finished

Partly-Finished

Unfinished

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Hydrologic data

Remote Sensing image

DEM

Remote Sensing image

Socio-Economic data

Hydro-dynamic model (HEC-RAS)

Population

Land use

Floodarea

Flood depth

Economic Value map

Population density map

Flood frequency

Assessment method

Hazard factors data

Vulnerability factors data

Flood risk assessment and impact evaluation model

Finished

Flood impact analysis

Flood risk analysis

Partly-Finished

Unfinished

Flood risk and impact maps

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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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Jun 28, 1998
  • 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

topography maps
topography maps
  • 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).
risk evaluation method
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 ofHumanitarian Affairs, 1992

Risk Evaluation Method
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