GEOSS/AWCI
Demonsration
project,
Mongolia
The 3rd Asian Water Cycle Symposium
2-4 December, 2007,
Oita International House, Beppu,
Beppu, Japan
Azzaya Dolgorsuren
Prepared by Dr.Davaa Gombo
Institute of Meteorology and Hydrology,
Juulchny gudamjgudamj-5, UlaanbaatarUlaanbaatar-46,
Mongolia, 210646
meteoins@magicnet.mn
watersect@yahoo.com
azzaya23@yahoo.com

Stream basincharacteristics•The selected Selbe stream basin
is located in center of Mongolia,
in the north of Ulaanbaatar,
between the latitudes of 47o 55' 48o 15' N and the longitudes
106o 50'-107o 00'.

•The Selbe with 26.2 km length isdraining an area of nearly 303
km2 in the Tuul Stream basin of
6300 km2. Land use types aredescribed as urban, pasture andforest (forest area 177.94 sq.km).
Geomorphology: floodplain, hilly
slope, mountain.

Observation system
Two stations:
In the period 1985-1991 at the lower site-Dambadarjaa isoperated. However, in 1994, this station was re-established.
Since 1998, Selbe at Dambadarjaa gauge is operating
temporary (operating only during warm period from May toOctober) in frame of the different national projects (Instituteof Meteorology and Hydrology).

No.

Sites

Coordinates

Cactment
area,
km2

Streamlength,
kmBasin meanelevation

Channelslope,%o1

Upper basinSanzai

48o 07' 33''
106o 53' 25''

34.2

8.3

1620

21.3

2

Lower basinDamba

47o 58' 24''
106o 55' 34''

188

26.2

1510

12.4

Observation system
SURFACE

NumberHYDROLOGICAL

NumberAir Temperature

2

Streamflow

2

Humidity

2

Reservoir (Water level, Outflow)

NoWind2

Groundwater Table

Pressure

2

Evaporation

NoPrecipitation

6

Soil Temperature

1

Snow Depth

1

Soil Moisture1

Skin TemperatureAtmosphere

Number

Upward Shortwave Radiation

Planetary Boundary Layer Tower

NoNot yet defined

Downward Shortwave Radiation

Pilot Baloon

NoUpward Longwave Radiation

Radiosonde

1

Downward Longwave Radiation

Radar

1

Net Radiation

1Water Quality

NumberSensible Heat Flux

Can be calculated
at 1 station

Groundwater quality indicators

Not yet definedLatent Heat Flux

Can be calculated
at 1 station

Surface water quality indicators

2

Ground Heat Flux

1

CO2 Flux

NoOthers

NumberRaingauges in the Selbe
stream basin
Sites

Elevation,mCoordinates
Latitude Longitude

1Sanzai1583

48o 07'35''

106o 53'
25''

2

Bayanbulag

1510

48o 05'08''

106o 54'
42''

3

Yargait1511

48o 01'45''

106o 53'
47''

4

Damba

1258

47o 58'41''106o 55'
36''

5University*1299

47o 27'106o 58'• In 2005 due tocooperation between
Japanese and Mongolian
national hydrologicalcommittees for UNESCO,in upper Selbe stream
have established AWS,
which has the nextsensors• for wind speed anddirection• air temperature• relative humidity• Rainfall• net radiation• soil heat flux
• soil temperature• soil moistureTargets• Environmental degradation (vegetation, soildegradation, deforestation and rapid
urbanization and etc)
• Surface and ground water monitoring andmodeling• To develop the information system forpromoting the implementation of integrated
water resources management (IWRM) in theSelbe and Tuul Stream Basins.

Proposed activities
No. Activities

2008

2009

2010

2011

1

Hydrometeorological and water quality monitoring

X

X

X

X

2

Data integration system (input data preparation, qualitycontrol)

X

X

3

Improvement of in-situ observation network system

X

X

X

4

Setting-up a Distributed Hydrological modelXX

X

5

Scenario studies: Land use change analysis, dry periods& etc

X

6

Capacity building on Floods, Droughts & Water quality

X

X

X

7

Parallel testing of the system at operational stage

X

X

8

IWRM plan development of Floods, Droughts & Waterquality

X

X

Thank you for your attention