2ndNov. 9-12, 2019
IDRC 2019 in SENDAI JAPANCooperation for risk reduction related to water disasterbetween with meteorology, hydrology and disaster
reduction part in Republic of Korea

11 Nov. 2019
Ph. D. Chung-Soo Kim
Korea Institute of Civil Engineering and Building Technology

National Framework for Flood Management
InformME

Korea Meteorological
Administration(KMA)(Ministry of Environment)
reportCentral Disaster andSafety Countermeasures
Headquarters (CDSCH)

InformInformHydrometric station

DataCollection

Flood Control Office

Provincial Disaster andSafety Countermeasures
Headquarters• Water level stage• Rainfall(TM, Radar)• Hydrologic data collection

Authorization
Dam Operation:
1) K-water2) Korea Hydro &Nuclear Power• Dam inflow, stage• Dam release

Dissemination• Estimation of dam inflow• Calculation of stream flow
• Flood forecast

Local Disaster andSafety Countermeasures
Headquarters
Dam related agencies• Issue flood warning

Mass media & SNS

Meteorology Information from KMA
GCM, Regional Climate Model(Numerical Model)
Radar, Satellite (Physical Model)→ Predicted Precipitation(Total Rainfall, Rainfall Period, Rainfall
Moving Path, etc.)

Typhoon Tracking Model→ Predicted Typhoon Moving Path,Intensity, Wind Speed, etc.
(Total Rainfall, Rainfall Period,Rainfall Moving Path, etc.)
Storm Surge, Climate Factors, etc.

FCO (Flood Control Offices) in Republic of Korea
Total Basin Area 99,827 ㎢

Han River FCO
Since 1974

Nakdong River FCO
Since 1987

Han River FCO
41,465 ㎢
Geum River FCO
Since 1990

Geum River FCO
13,264 ㎢

Seomjin River FCO
Seomjin River FCO
Since 1990
(Merged into
Youngsan River
FCO in 2005)

Yeongsan River FCO
Since 1991

Yeongsan River FCO
15,164 ㎢

Nakdong River FCO
29,934 ㎢

Telemetering Hydrological StationsRainfall stations (599)Stage Observatory

Rainfall Observatory

Water level stations (570)Limjin RiverRadar

Flood Warning stations (43)Biselsan Radar

Sobaeksan Radar

Data Collection for Flood Analysis
Real time transmission of observation data every 10 minute
Applying VHF, CDMA, Wireless communication, VSAT and etc
Real time Monitoring by CCTV

Flood Analysis and Prediction
Flood Analysis- Scenarios analysis- Check the Dam & Weir Release- Prediction of water level, flow in
downstream

Analyze data

Scenarios review

Flood watching levelexceeded expectations
Flood warning level
Flood watching levelCollecthydrological data

- Quality Control- Data Analysis- Consider rainfall forecast- Reflection of release plan in dam, weir
- To consider the status of the river

Flood watching levelexceeded expectations
Flood warning level- Rainfall- Water Level, Flood Discharge- Predicted rainfall- Dam inflow/release- Data review- Scenario reset- Recheck the status of the river

Flood watching levelDissemination of Flood ForecastingElectrical transmission(SNS)Flood Management Systems(http://www.hrfco.go.kr/html/realView.j )River Information Display SystemMain road

Situation notice

FCORoad management agency

Electronic Display

Dissemination of control situation
Instruction

ReportFacility management
agencyOverall control ofinundated road

Flood hazard map
The flood risk map for national rivers completed in 2016
The flood risk maps for local rivers and urban area will be completed by 2021

Serial number, Year of production and Authority

Summary

Study area boundaries
and latitude, longitudeLegendFlood analysis
Cross section

Flood scenario

River characteristics

Procedures of analysis
Analysis conditions

Inundation Information & EAP (Emergency Action Plan)WAMIS(Water Management Information System, http://wamis.go.kr) supply pastinundation information (date, rainfall type, etc.)
Publish the Annual Disaster Report (including flood damage cost, causalities,
inundated area, pictures, etc.)

Improvements for Flood Management
One-way Information
Transmission

Interchange Information
Transmission

Dissemination & Issues

Capacity Building

Korea
Meteorological
Administration

FloodControlOffice(KMA)
CentralDisaster andSafety
Countermeasures
Headquarters(CDSCH)

People Safety

Thank You