# Presentation: 753711

## Presentation on the Hydrological Activities in Turkey Hamza OZGULERState Hydraulic Works Ankara, Turkey

- NWS - WMO Hydrological Forecasting Course

## DSI serves in four sectors

**DSI serves in four sectors**

**AGRICULTURE**

**ENERGY**

**ENVIRONMENT**

**SERVICES**

**http://www.dsi.gov.tr**

- NWS - WMO Hydrological Forecasting Course

## DSI's involvements in water resources of the Country

**observations**

**assessment**

**planning**

**management**

- NWS - WMO Hydrological Forecasting Course

**Notes:**
DSI is guiding, mainly through the Investigation and Planning Department, appropriately in  all scientific and technical matters relating to water resources of the Country. Its research and development activities include observation, hydrology practices, water resources assessment, planning  and  river engineering.

## climate and water

**climate**
** **semi-arid
-  shows high differences both
-  regionally
-  seasonally
**water resources **
-    26 major basins
-    mean annual precipitation:			642,6 mm
-    mean annual volume of precipitation:	501,0 km3
-    total usable water potential:		110,0 km3

***climate and water***

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## the distribution of 6-hour rainfall

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## main causes of floods in Turkey

- floods in Turkey generally occur because of
-     _**heavy rainfall**_ on the costal areas of the northern, southern and western parts of Anatolia
-   _**a sudden increase      in air temperature**_,  resulting in snow melt in the eastern and mountainous  part of southeastern  Anatolia

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## number of floods is getting more

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## flood losses is increasing  both in frequency and amount..

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## seasonal distribution of floods

-  51 % of  all the floods occur  in the months April, May, June and July.
-  the ratio of number of floods in the spring and summer seasons to the number for all year is 66 %.
-  most of the summer floods are seen in the month of June.

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## 1999, Izmir

***1999, Izmir***

***1998, Bartin***

***2000, Istanbul***

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## flooding events of the last decade, with their costly
results have brought Turkey to a new view-point to
reduce and control the susceptibility to the flood 
damages, namely the "Hazard Mitigation Approach”:
structural measures
non-structural measures:
 a sound underwriting for flood insurance:
 an early warning system:

- results have brought Turkey to a new view-point to
- reduce and control the susceptibility to the flood
- damages, namely the "***Hazard Mitigation Approach***”:
- structural measures
- non-structural measures:
-  a sound underwriting for flood insurance:
-  an early warning system:

***hazard mitigation approach***

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##        TEFER (Turkey Emergency Flood and Earthquake Recovery)                   Project  

**real time **
**hydrometric **
**data**

**radar weather**
**data**

**hydrologic **
**organization**
**(DSI)**

**meteorological**
**organization**
**(DMI)**

**flood watch**

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## TEFER Project

**TEFER Project**

**(TURKSAT)**

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##      TEFER project will support the installation of

129 automatic real-time hydrometric, 
206 automatic real-time meteorological and 
3 radar stations (Doppler)

	in the first phase,

	so that real-time data will be available in order to run the operational flood forecasting models. 

- 129 automatic real-time hydrometric,
- 206 automatic real-time meteorological and
- 3 radar stations (Doppler)
- 	in the first phase,
- 	so that real-time data will be available in order to run the operational flood forecasting models.

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## coverage area 

***(I. Phase: 1999 - 2004)***

***(II. Phase: 2004 - 2008)***

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