application of models in beles sub basin by moges berbero nov 12,2012
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Application of Models in Beles Sub Basin by Moges Berbero Nov 12,2012. Presentation outline. Background of Beles Sub Basin Functions of Beles Sub Basin Organization Why models in the Beles basin How to use models in the Basin Application of SWAT model in the Basin - PowerPoint PPT PresentationTRANSCRIPT
Application of Models in Beles Sub Basin
by
Moges Berbero
Nov 12,2012
Presentation outline
• Background of Beles Sub Basin
• Functions of Beles Sub Basin Organization
• Why models in the Beles basin
• How to use models in the Basin
• Application of SWAT model in the Basin
• Challenges of modeling work in the Basin
Background of Beles Sub Basin
• Location– North-west part of
the country– East, North-East with
Amhara Region
– South, West and North-West with BGRS
Background of Beles Basin
• It covers total catchment area of 14,209 Km2
• The catchment area includes some parts of two regional states,
–22% of Sub Basin lies in Amhara regional state–78% of Sub Basin lies in Benishangul
Gumuz region
Background of Beles Basin
• Average annual areal rainfall is 1476 mm
• Its average annual run-off is around 4,900 million m3(SMEC,2008)
• The population within the basin is 372,485
Functions of Beles Sub Basin Organization
• Serving as an institutional focal point for water resources allocation and management in Beles Sub Basin
• Be a repository of the official knowledge base for water resources management data and information in the sub-basins
Functions con….
• Undertaking research and special studies as required for effective water resources planning and management.
• Providing the analytical/modeling expertise and tools to effectively manage the water resources of the sub-basins
• Monitoring water resources of Beles Sub-Basin
Why models in the Beles Basin?
– Assessing both surface and groundwater availability within the sub basin (SWAT and MODFLOW models)
– Water resources allocation and planning within the basin for different needs or demands( WEAP or MIKEBASIN models)
Main Beles at Bridge
G.Beles at Mandura
How to use model out put
Beles Water ResourcesIrrigation
Water Supply•Industrial•Domestic
Hydropower
Tourism
Environmental
Water Resources allocation
model(WEAP, Mike Basin)
Application of SWAT model in the Basin
• Input data used for SWAT model set up– Climate data (1997- 2006 )
• Precipitation
• Min and max temperature
• Wind speed and relative humidity
– Flow data, both daily and monthly data(1997-2006)
– Land cover and soil
– DEM of Beles Basin
Hydrometric stations used for SWAT model Calibration
Main Beles at Bridge
G.Beles near Mandura
Outlet of Beles to Abbay
Metreological stations used for SWAT model application
Mankush station
Bullen station
Chagni station
Dangila station
Pawe station
Shahura station
Kunzela station
Soil classification of the Basin
Land cover of the Beles Sub Basin
Hydrologic response unit of the Basin(HRU)
Sample calibration results for Main Beles at the Bridge
calibration results for Gilgel Beles near to Mandura
Challenges of modeling work in the Basin
• The existing metreological stations within the Basin are not uniformly distributed
• The existing hydrometric flow measurements did not cover all the catchment area of Beles Basin
– Main Beles at Bridge gauging station( 3482.4 Km2)– Gilgel Beles near to Mandura gauging station(736.6Km2)
• There is no detail soil and land cover map of the Basin
• Both flow and weather data are full of missing data
Thank you very much!!!