CEOP_AP Tibet Reference Site Gaize 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 Gaize AWS (Automatic Weather Station) observation is to monitor these meteorological values.

Station Operator:

A staff of Gaize Meteorological Station (station number 55248).

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: Bare land.

Land cover within 500 m of site: Bare land.

Land cover within 12 km of site: Bare land.

Seasonal land cover changes: Vegetation is sparse and limited to rainy season (June - August). During this period it consists of short plateau spike-like weeds (Stipa purpurrea) and desert spike-like weeds (Stipa glareosa), which are only a few tens of mm height at the observation site.

Major changes in land cover at site during CEOP data period: No information.

Slope at the site: Plain

Other notes: None

Soil Type and Characterization:

Surface soil type: clay with a certain amount of sand.

Soil type in deeper layers: No information.

Surface soil porosity: 0.37

Soil porosity in deeper layers: No information.

Soil infiltration rate: No information.

Bulk Dry Density: 1.49x10^3kgm-3

Saturated Hydraulic Conductivity: No information.

The Soil Reference Group(s) (from World Reference Base for Soil Resources): No information.

Climate:

Semi-arid or arid climate conditions.

CEOP Parameters Measured and Instrumentation:

SURFACE METEOROLOGY AND RADIATION INSTRUMENTATION AND DESCRIPTION:

Station pressure - 0.5 m PTB220C VAISALA
Air Temperature - 0.5 m Thermometer Ogasawara Keik
Dew point - 0.5 m derived
Relative humidity - 0.5 m HMP-45D VAISALA
Specific humidity - 0.5 m derived.
Wind speed - 4.6 m 3 cup anemometer(VS-125) Ogasawara Keiki
Wind direction - 4.6 m WS-D32 Komatsu
U wind component - 4.6 m derived.
V wind component - 4.6 m derived.
Precipitation - 0.5 m Rain Guage Ogasawara Keiki
Snow depth - Not measured.
Incoming shortwave radiation - 1.67 m MS-802 EKO
Outgoing shortwave radiation - 1.30 m MS-802 EKO
Incoming longwave radiation - 1.67 m MS-202 EKO
Outgoing longwave radiation - 1.30 m MS-202 EKO
Net radiation - derived
Skin temperature - 1.37 m Thermo-hunter IK3 OPTEX
Incoming Photosynthetically Active Radiation (PAR) - Not measured.
Outgoing Photosynthetically Active Radiation (PAR) - Not measured.

METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:

No data of this type available at this station.

FLUX INSTRUMENTATION AND DESCRIPTION:

Sensible heat flux - Not measured.
Latent Heat flux - Not measured.
CO2 Flux - Not measured.
Soil heat flux - 3 and 8 cm depths MF-81 EKO

SOIL INSTRUMENTATION AND DESCRIPTION:

Soil temperature - 0, 5, 10, 20, 40 and 80 cm depths - Pt100 Ogasawara Keiki
Soil moisture - 3, 20, and 40 cm depths - Trime EZ 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: