Basin Scale Flood Hazard Mapping Using Hydrologic Model in
Sumatera, Indonesia
ApipResearch Center for Limnology - Indonesian Institute of Sciences (LIPI)
The 2nd Symposium on JASTIP Disaster Prevention International Cooperation Research(JASTIP‐WP4 Symposium), March 22‐23, 2017, Kihada Hall, Obaku Plaza, Uji Campus, Kyoto University, Japan
Outline• Water‐related Disasters in Indonesia• Risk Management & National Agency for Disaster
Management• Existing Flood Hazard Map• Case Study
• General Approach• Field Measurements• Climate Projection• Hydrological Modeling
4. Further Activity
• Soil Property for Hydrological Modeling• Landuse Changes & Possible Future Landuse Demand• Trend Analysis of Hydrologic Data• Flood Hazard Mapping
2. Methodology
3. Primary Results
1. Introduction
I INTRODUCTION
Kartamihardja, 2006
Water Resources Potential in Indonesia
River Basins in Indonesia
Main Lakes and Reservoirs In Indonesia
I INTRODUCTION
Problems: Extremely surplus & deficit,Decreasing inland waters ecosystem services
Disaster exists if there is a risk/damage
1. Rapid Onset Type Disasters (flood, drought)2. Slow Onset Type Disasters (environmental problems)
Floods
Droughts
Eco-disasters
I INTRODUCTIONTotal Event
Dominant Type
Source: BNPB (National Agency for Disaster Management), 2010
I INTRODUCTION
National Agency for Disaster
Management
Disaster Mitigation Disaster Response
Hazard Assessment
Vulnerability Assessment
Risk Quantification
Technical Measures
Non‐Technical Measures
Planning Disaster Relief &
Evacuation
Early Warning System
Emergency Help ‐ Rescue
Humanitarian Assistance
Rekonstruksi
To identify priority locations; basic information for evaluation & improvement of risk disaster management in long‐term
Risk Reductions (i.e., Flood Risk Control)
ResidualRiskTargetedRisk
Flood Disaster Risk Management
PreparednessRisk AnalysisRisk Analysis
I INTRODUCTION
National Spatial Information on Flood Risk
Batanghari River basin
Percentage Change for December
Percentage Change (%) of the Monthly Average Rainfall (December)
Case Study: Batanghari River basin, Sumatera
9
Agriculture Area Urbanized Area
Effects: Community livelihood, important economic sector (agriculture), freshwater ecosystem including peat land
Batanghari River
Batanghari River's Flood1. Seasonal Flood2. Flood Inundation3. Extreme Rainfall enhances
the magnitude of Flood
0
500
1000
1500
2000
2500
0-1hari
1-2hari
2-4hari
4-6hari
6-10hari
10-15hari
15-20hari
20-30hari
Durasi Periode Banjir (hari)
Luas
Are
a Te
rgen
ang
(km
2)
1m 3.5m 6.5m 8.5m 10.5m 14.5m
Flood Duration (Days)
Inun
dated Area
Over the
Basin (k
m2)
Batanghari River's Flood
Jambi City, March 15, 2017 (end of rainy season)
I INTRODUCTION
National Disaster Management Agency (BNPB)
Existing Flood Risk Map for District Scale
