CEOP_AP Tibet Reference Site ANNI-AWS Station

To clarify the energy and water cycle in the Tibetan Plateau, it is important to understand the characteristics of the basic meteorological elements and surface fluxes. The purpose of Tibet AWS (Automatic Weather Station) observation is to improve the quantitative understanding of land-atmosphere interactions over the Tibetan Plateau and develop the land surface process models by monitoring these meteorological values.

Station Operator:

No information.

Vegetation and Land Use:

Dominant land cover at the measurement location: Bare land (with thin weed-like plant): Plain land

Canopy height: Less than 5cm.

Density of Canopy: No information.

Land cover within 50 m of site: No information.

Land cover within 500 m of site: No information.

Land cover within 12 km of site: No information.

Seasonal land cover changes: No information.

Major changes in land cover at site from October 2002 to December 2004: No information.

Slope at the site: No information.

Other notes: None

Soil Type and Characterization:

Surface soil type: Silt loam.

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.

CEOP Parameters Measured and Instrumentation:

SURFACE METEOROLOGY AND RADIATION INSTRUMENTATION AND DESCRIPTION:

Station pressure - 0.5 m PTB220C VAISALA
Air Temperature - 1.0 m TS-801(Pt100) Okazaki
Dew point - 1.0 m derived
Relative humidity - 1.0 m HMP-45D VAISALA
Specific humidity - 1.0 m derived.
Wind speed - 10.0 m WS-D32 Komatsu
Wind direction - 10.0 m WS-D32 Komatsu
U wind component - 10.0 m derived.
V wind component - 10.0 m derived.
Precipitation - 1.0 m NOAH-II ETI
Snow depth - 3.0 m SR-50 CAMPBEL
Incoming shortwave radiation - 1.58 m CM21 Kipp & Zonen
Outgoing shortwave radiation - 1.28 m CM21 Kipp & Zonen
Incoming longwave radiation - 1.58 m Precision Infrared Radiometer Eppley
Outgoing longwave radiation - 1.58 m Precision Infrared Radiometer Eppley
Net radiation - derived
Skin temperature - 1.42 m IRt/C 1X-T50F Exergen
Incoming Photosynthetically Active Radiation (PAR) - Not measured.
Outgoing Photosynthetically Active Radiation (PAR) - Not measured.

METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:

Station pressure - 0.5 m PTB220C VAISALA
Air Temperature - 1.0 and 8.2 m TS-801(Pt100) Okazaki
Dew point - 1.0 and 8.2 m derived
Relative humidity - 1.0 and 8.2 m HMP-45D VAISALA
Specific humidity - 1.0 and 8.2 m derived.
Wind speed - 1.0, 5.0, and 10.0 m WS-D32 Komatsu
Wind direction - 10.0 m WS-D32 Komatsu
U wind component - 10.0 m derived.
V wind component - 10.0 m derived.

FLUX INSTRUMENTATION AND DESCRIPTION:

Sensible heat flux - Not measured.
Latent Heat flux - Not measured.
CO2 Flux - Not measured.
Soil heat flux - 10 and 20 cm depths MF-81 EKO

SOIL INSTRUMENTATION AND DESCRIPTION:

Soil temperature - 4, 10, 20, and 40 cm depths - WST80-L5 AGEMATSU
Soil moisture - 4 and 20 cm depths - Trime IT IMKO

RADIOSONDE INSTRUMENTATION AND DESCRIPTION:

No data of this type available at this station.

Site References

None provided.

Literature:

Presentations:

MAHASRI (13 March 2007; Washington, DC, USA)
Introduction to CAMP Quality Control Data System (27 February 2006; Paris, France)
GAME/CAMP (10 March 2004; Irvine, California, USA)
GAME/CAMP (02 April 2003; Berlin, Germany)
CAMP Tibet 31 March 2003; Berlin Germany)
CAMP Tibet (6 March 2002; Tokyo, Japan)

Data Sets and Documentation: