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IInternational nternational FFlood lood NetNetworkwork
- IFNet -- IFNet -
Akira SasakiAkira Sasaki
Deputy Director GeneralDeputy Director General
““Water in Rivers” / IFNet SecretariatWater in Rivers” / IFNet Secretariat
- Overview of Flood Damage -- Overview of Flood Damage -
0
20
40
60
80
100
120
140
1973 to1977
1978 to1982
1983 to1987
1988 to1992
1993 to1997
EARTHQUAKE
DROUGHTand FAMINE
FLOOD
HIGH WIND
LANDSLIDE
VOLCAND
OTHER
Fig.-1 Affected by type of disaster and by period (1973 ~ 1997)
Source : CRED, “World Disasters Report 1999” Source : Asian Disaster Reduction Center, “Data book of Asian Natural Disasters in the 20th Century”
Fig.-2 Average occurrence and damage of natural disasters (1975 ~ 1999)
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50
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300
1975-1979 1980-1984 1985-1989 1990-1994 1995-1999The average occurrence
The average killed thousands year( / )
The average affected peaple million year( / )
The average damaged property billion dollar year( / )
75-79 80-84 85-89 90-94 95-99
Occurrence Fatalities (thousand/year)
Sufferers (million/year) Economic Losses (billion $/year)
300
250
200
150
100
50
0
Assisting activities to break the vicious Assisting activities to break the vicious circle of poverty and environmental circle of poverty and environmental degradation caused by floods and lead degradation caused by floods and lead to a safe and secure lifeto a safe and secure life..
< CONCEPT >< CONCEPT >
International Flood Network ImageInternational Flood Network Image
Project Planning
MLIT(Ministry of
Land, Infrastructure &
Transport)
MLIT(Ministry of
Land, Infrastructure &
Transport)
WMO(World
Meteorological Organization)
WMO(World
Meteorological Organization)
WWC(World Water
Council)
WWC(World Water
Council)
JICA (Japan
International Cooperation
Agency)
JICA (Japan
International Cooperation
Agency)
ADB(Asian
Development Bank)
ADB(Asian
Development Bank) OthersOthersOthersOthers
International Flood Network (IFNet)
Accumulation and Submission of Information
Input to International Conferences
<Establishment><Establishment>
International Flood Network (IFNet) was officially established during the WWF3 in Kyoto March 2003
<General Meeting><General Meeting>
General Meetings of IGeneral Meetings of IFNet are held annuFNet are held annually, their dates and ally, their dates and venues being decidvenues being decided jointly by the Ched jointly by the Chairperson and the Diairperson and the Director General.rector General.
The 1st General Meeting
10 August 2003, Stockholm
Schedule after EstablishmentSchedule after Establishment
10 August, 200310 August, 2003 The 1 The 1stst General Meeting in General Meeting in Stockholm Stockholm
March, 2004March, 2004 The 1 The 1stst Preparatory Preparatory Meeting for the WWF4 Meeting for the WWF4
March, 2005March, 2005 The 2 The 2ndnd Preparatory Preparatory Meeting for the WWF4 Meeting for the WWF4
Summer/Autumn 2005Summer/Autumn 2005 Regional MeetingRegional Meeting
November, 2005November, 2005 Advance Meeting for WWF4 Advance Meeting for WWF4
March, 2006March, 2006 WWF4 WWF4
Global Flood Alert SystemGlobal Flood Alert System( GFAS )( GFAS )
One of the activities of IFNet implemented One of the activities of IFNet implemented by by
- Ministry of Land, Infrastructure and Transp- Ministry of Land, Infrastructure and Transport (MLIT)ort (MLIT)- National Space Development Agency (NA- National Space Development Agency (NASDA) andSDA) and- Infrastructure Development Institute (IDI)- Infrastructure Development Institute (IDI)
石塘樋門
On-Line
Data Processing System
・ Data for climate forecasts (realtime/near-realtime data)・ 3-hour global precipitation map (realtime/near-realtime data)
Heavy rain around the Upstream of ○○ River
・ Rainfall Prediction・ Flood Prediction
Secretariat of IFNet
Flood may occur in the downstream of ○○ River.
Around the downstream of ○○ river
It is heavy rain in the upstream of ○○ River.There is a possibility to occur a flood in X hours. Please evacuate to safe places.
Organizations in Charge of Meteorology and Disaster Prevention
Flood Flood AlertAlert
Rainfall information
Observation Satellite (GPMObservation Satellite (GPM ))
Raw DataGrand Grand StationsStations
Precipitation for three days in Elbe River Basin
(2002 flood in Europe)
Inundated area
Mulde River
Elbe River
August 14, 2002
August 20, 2002
European Flood Ex-post Situation, August 2002
European Flood 2002 European Flood 2002
Precipitation and Flow Rate of Elbe River
3-D Rain Structure3-D Rain Structure
SatellitesObservation(GPM
TRMM(4-30 km)
GroundStations
Data Processing SystemData Processing System 3-hour Global Precipitation Data3-hour Global Precipitation Data
On-Line
Probability Calculation
Present RainfallPresent RainfallEstimated Precipitation Estimated Precipitation of the Probabilityof the Probability>
Alert!(Information Dissemination to Countries Concerned)
Obtainment of Precipitation Data/Information Dissemination
Preparation for the System
Collection Collection ofof
Precipitation Precipitation DataData
Estimation of Estimation of the the
Precipitation Precipitation of of
10 to 30 Year 10 to 30 Year Return PeriodReturn Period
Probability Calculation
Rainfall
Probability year
30 50
100
200
Issuance of Flood Alert洪水アラートの発信
Daily Precipitation of Aug. 1, 2003Daily Precipitation of Aug. 1, 2003
Derived from TRMM Data of Global Real-Time 3-Hourly Precipitation Analyses (3B42RT) by NASDA
Daily Precipitation ProbabilityDaily Precipitation Probability
Derived from TRMM Data of Rain Accumulation (3B42) by NASDA
10-y
ear
Re
turn
Pe
rio
d30
-yea
r R
etu
rn P
eri
od
30-year Return Period July 26, 2003
Derived from TRMM Data of Rain Accumulation (3B42) by NASDA
Derived from TRMM Data of Global Real-Time 3-Hourly Precipitation Analyses (3B42RT) by NASDA
Daily Precipitation of Zambezi River BasinDaily Precipitation of Zambezi River Basin
Derived from TRMM Data of Rain Accumulation (3B42) by NASDA
Derived from TRMM Data of Global Real-Time 3-Hourly Precipitation Analyses (3B42RT) by NASDA
10-year Return PeriodMay 15, 2003
( Continuous Heavy Rains )
Daily Precipitation of South China Daily Precipitation of South China
Tokyo
N37.25 E138.0
N35.25 E138.0
N37.25 E140.0
N35.25 E140.0
Comparison of TRMM Data and AMeDAS DataTRMM データとアメダスデータの比較
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60
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100
120
140
160
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200
1st 6th 11th 16th 21th 26th 1st 6th 11th 16th 21th 26th 31th
J uly,2002
Pre
cipi
tation
/day
(mm
)
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50
100
150
200
250
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350
400
450
500
Acc
umul
ated
pre
cipi
tation
(mm
)
Daily rainfall (Ground rainfall gauge(AMeDAS))Daily rainfall (TRMM 3 hourly data)Accumulated AMeDAS dataAccumulated TRMM 3 hourly data
J une,2002
Comparison of TRMM Data and AMeDAS Data(No assumption of lacking data)
TRMM データとアメダスデータの比較 ( 欠測補填なし )
TRMM data; http://trmm.gsfc.nasa.gov/
Comparison of TRMM Data and AMeDAS Data(Assumption of lacking data)
TRMM データとアメダスデータの比較 ( 欠測補填あり )
TRMM data; http://trmm.gsfc.nasa.gov/
0
20
40
60
80
100
120
140
160
180
200
1st 6th 11th 16th 21th 26th 1st 6th 11th 16th 21th 26th 31th
J uly,2002
Pre
cipi
tation
/day
(mm
)
0
50
100
150
200
250
300
350
400
450
500
Acc
umul
ated
pre
cipi
tation
(mm
)
Daily rainfall (Ground rainfall gauge(AMeDAS))Daily rainfall (TRMM 3 hourly data)Accumulated AMeDAS dataAccumulated TRMM 3 hourly data
J une,2002
Schedule of System DevelopmentSchedule of System Development
20032003 Study of GFAS by using the data observed Study of GFAS by using the data observed
TRMM (Tropical Rainfall Measuring Mission)TRMM (Tropical Rainfall Measuring Mission)
20042004 Development of GFAS by using TRMM dataDevelopment of GFAS by using TRMM data 11stst Test Running of GFAS in the pilot areas Test Running of GFAS in the pilot areas
20072007 CompletionCompletion