Flood Early Warning System

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CONFERENCE ON WATER OBSERVATION AND INFORMATION
SYSTEM FOR DECISION SUPPORT 25-29 May
2004 Ohrid-Republic of Macedonia
Flood Early Warning System in I.R. of Iran
Sina Samadi1, Javad B.Jamali1,2, Soheila
Javanmard 1,2,Iman Babaeian1 1-Climatological
Research Institute (CRI) 2-Atmospheric Science
and Meteorological Research Center (ASMERC)
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Introduction At the close of the twentieth
century, natural hazards and disasters are one of
the most common forms of disasters around the
world. Natural disasters cause in significant
loss of life and serious economic, environmental
and social impacts that greatly retard the
development process. Careful hazard assessment
and planning, and a range of social, economic and
political measures, can significantly contain
these threats. Most commonly, there are three
components in a natural disaster plan monitoring
and early warning risk assessment and mitigation
and response. Given the improved tools and
technologies available today, it is possible to
provide disaster information and minimize the
potential damage of disasters. So, the national
early warning systems would be discussed, as one
of the important component of natural disaster
risk management. In I. R. of Iran, also,
different types of natural disasters occur, such
as drought, flood, earthquake, sea-level rise,
dust storm, hail, freezing and etc, but Flood
hazard and disaster is one of the most frequent
and damaging types of natural disasters. They
have been the most common type of geophysical
disaster in the latter half of the twentieth
century in Iran, generating an estimated more
than 20 percent of all disasters from 1950 to
2003.
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• IRAN, a disaster prone country
• Major natural disasters include
• Frequent major earthquakes
• Floods
• Droughts
• Landslide
• Desertification
• Deforestation
• Storms

Percentage of Natural Disasters Events in I.R. of
Iran (1990-2002)
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Flood Management

• Three phases
• Floodplain management (before flood)
• preventative activities to reduce flood impacts
• environmental management activities
• Flood response (during flood)
• operational activities
• emergency management
• Flood recovery (after flood)
• assistance to get back to normal life
• disaster relief

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National Flood Early Warning System(NFEWS) in
I.R.of Iran
Observation
Issue
Response
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Network of meteorological observation in I.R. of
IRAN
No. of station
Type of station
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Case Study
One of the hazardous floods of I.R.of Iran
occurred in Golestan and north of Khorasan
provinces , located in north -east of the
country , on August 2002. In this regard ,
according to the responsibility of I. R. of Iran
Meteorological Organization (IRIMO) on the flood
forecasting, the early warning issue of the
mentioned flood, issued within 48 hour's in
advance.by using this Early warning system we
could decrease many losses and damages in this
part.
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References

• Donald A. WILMITE, 2000, Drought, Volumes 1
  and 2.
• I. R. of Iran Meteorological Organization,
  Reports and Products, 2001 and 2002.
• National Committee for Natural Disasters, I. R.
  of Iran, Reports, 2001 and 2002.
• Natural Disaster Risk Management Project,
  Climatological Research Institute(CRI), 2002.
• Palmer, W.C 1965. Meteorological Drought
• Parker D. 2000, Floods, Volumes 1 2.

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