Regional Hydroclimate Project: Reference Site Name:
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Heihe River Basin
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Dayekou
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Name: Xin Li
Affiliation:
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Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences
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320 West Donggang Road, Lanzhou 730000, Gansu, China
Telephone: +86-931-4967249
Fax: +86-931-4967249
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Name: Xin Li
Affiliation:
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Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences
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320 West Donggang Road, Lanzhou 730000, Gansu, China
Telephone: +86-931-4967249
Fax: +86-931-4967249
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Latitude : 38.5649 N
Longitude : 100.2790 E
Elevation : 2712 m
Dayekou Local Station Map (click for full resolution):
![](images/dayekou300.png)
Heihe Regional Station Map (click for full resolution):
![](../images/heihe_regional300.png)
Google Earth:
Google Earth .kmz file of CEOP_AP Heihe River Basin Reference Site stations
Station Description:
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General Description:
Dayekou station, which situated in the southern of Zhangye city of Gansu province, located in a forest of shade slope in Guantan in Dayekou subbasin of upstream of Heihe river basin. The main tree in Guantan is spruce about 15m-20m, and the ground covered with moss about 10cm, they are all well-grown.
Dayekou forest observed site is 15 meters width from east to west, and 15 meters length from south to north. There is a 24 meters micro-meteorological observing tower in the test site, and observed sensors of wind, temperature and humidity grads respectively on 2 meters, 10 meters and 24 meters on the observing tower, and a photosynthetic active radiometer, a radiation four-component meter, a ultrasonic anemometer and a gas analyzer mounted on 20m, and a snow depth sensor.
There is a east facing and 1.2 meters depth soil profile which is 6 meters away from the northern of 24 meters micro-meteorological observing tower. Soli heat flux sensor is deployed in the 0.05m and 0.15m depth, and a six levels soil temperature and soil water sensor are deployed in 0.10m, 0.20m, 0.40m, 0.80m, 1.20m, 1.60m respectively. The soil profile is disposed with layering in excavation and burying process to keep the original layered structure, and the vegetation layer can be reserved more completely.
Station Operator: Chinese Academy of Sciences
Vegetation and Land Use:
Dominant land cover at the measurement location: forest
Canopy height: 15-20m
Land cover within 50 m of site: forest
Land cover within 500 m of site: forest
Land cover within 12 km of site: valley, village and mountains
Seasonal land cover changes: changes little.
Major changes in land cover at site during CEOP data collection period: No information.
Slope at the site: No information.
Other notes: No information.
Soil Type and Characterization:
Surface soil type: No information.
Soil type in deeper layers: No information.
Surface soil porosity: No information.
Soil porosity in deeper layers: No information.
Soil infiltration rate: No information.
Bulk Dry Density: No information.
Saturated Hydraulic Conductivity: No information.
The Soil Reference Group(s) (from World Reference Base for Soil Resources): No information.
Climate:
No information.
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SURFACE METEOROLOGY AND RADIATION INSTRUMENTATION AND DESCRIPTION:
- Station pressure - 0.5 m Campbell CS105
- Air Temperature 1.92m Vaisala HMP45C
- Dew point - 1.92m derived
- Relative humidity 1.92m Vaisala HMP45C
- Specific humidity 1.92m derived
- Wind speed 2.24m MetOne 014A
- Wind direction 23.80m MetOne 034B
- U wind component 2.24m derived
- V wind component 2.24m derived
- Precipitation - no height provided R.M.Young 52202
- Snow depth - 1.72m Campbell SR50
- Incoming shortwave radiation - 19.75m Campbell CM3
- Outgoing shortwave radiation - 19.75m Campbell CM3
- Incoming longwave radiation - 19.75m Campbell CG3
- Outgoing longwave radiation - 19.75m Campbell CG3
- Net radiation 19.75m derived
- Skin temperature - Not Measured
- Incoming Photosynthetically Active Radiation (PAR) - LI-COR Li190SB
- Outgoing Photosynthetically Active Radiation (PAR) - LI-COR Li190SB
- Station pressure 0.5 m Campbell CS105
- Air Temperature 1.92m & 9.90m & 23.75m Vaisala HMP45C
- Dew point - 1.92m & 9.90m & 23.75m derived
- Relative humidity 1.92m & 9.90m & 23.75m Vaisala HMP45C
- Specific humidity 1.92m & 9.90m & 23.75m derived
- Wind speed - 2.24m MetOne 014A &10.00m & 23.80m MetOne 034B
- Wind direction 23.80m MetOne 034B
- U wind component 23.80m derived
- V wind component 23.80m derived
- Sensible Heat Flux 3.15 m Campbell CSAT3
- Latent Heat Flux 3.15 m LI-COR Li7500
- CO2 Flux 3.15 m Campbell LI-COR 7500
- Soil Heat Flux no information
- Soil temperature measured at 6 levels; Campbell 107
- Soil moisture measured at 6 levels; Campbell CS616
- H2O Flux
METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:
FLUX INSTRUMENTATION AND DESCRIPTION:
SOIL INSTRUMENTATION AND DESCRIPTION:
RADIOSONDE INSTRUMENTATION AND DESCRIPTION:
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No radiosonde measurements available.
OTHER INSTRUMENTATION AND DESCRIPTION:
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Web:
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None provided.
Literature:
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None provided.
September 2007 - Bali, Indonesia