CEOP CPPA SGP Reference Site E10 Station

Site located beside a man-made drainage ditch, with about 50 cm of mixed fill on top of the original ground level, in a relatively low area surrounded by higher hills. There is a layer of uneven, lumpy limestone at 55 cm below the SWATS system, varying as much as 15 cm in depth over an area 10 m in diameter, broken at the drainage ditch. Vegetation is hip deep, with roots reaching to the rock layer. The sensors are at 5, 15, 25, 35, and 55 cm, with the 55 cm sensors positioned immediately adjacent to the rock layer. There is a cultivated field (usually winter wheat) south of the drainage ditch. Micrometeorological data will be representative of conditions in the valley.

Station Operator:

DOE ARM

Vegetation and Land Use:

Dominanat land cover at the measurement location: alfalfa

Canopy height: No information

Land cover (approximate percentages of each type) within 50 m of the measurement location: no information

Land cover (approximate percentages of each type) within 500 m of the measurement location (1 km pixel): no information

Land cover (approximate percentages of each type) within 12 km of the measurement location (1/4 degree pixel): no information

Seasonal land cover changes: no information

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

Slope at the site: no information

Mean elevation and range of elevations in 1 km pixel: No information

Soil Type and Characterization:

Surface Soil Type: Clay loam (5-10 cm) - 29.75% sand; 42.90% silt; 27.35% clay; 3.16% gravel

Deeper Layers Soil Type: Clay loam (40-45 cm) - 29.10% sand; 40.81% silt; 30.09% clay; 0% gravel

Surface Soil porosity: no information

Deeper Layers Soil Porosity: no information

Soil infiltration rate: no information

Bulk dry density:

Saturated hydraulic conductivity: no information

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 not measured
Air Temperature not measured
Dew point not measured
Relative humidity not measured
Specific humidity not measured
Wind speed not measured
Wind direction not measured
U wind component not measured
V wind component not measured
Precipitation not measured
Snow depth Not measured.
Incoming shortwave radiation height unspecified; Precision Spectral Pyranometer
Outgoing shortwave radiation height unspecified; Precision Spectral Pyranometer
Incoming longwave radiation height unspecified; Precision Infrared Radiometer
Outgoing longwave radiation height unspecified; Precision Infrared Radiometer
Net radiation height unspecified; derived
Skin temperature not measured
Incoming Photosynthetically Active Radiation (PAR) not measured
Outgoing Photosynthetically Active Radiation (PAR) not measured

Further information available on radiation data here.

METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:

No data of this type at this station.

FLUX INSTRUMENTATION AND DESCRIPTION:

Sensible Heat Flux 3m; 3D sonic anemometer, model WindMaster Pro
Latent Heat Flux 3m; 3D sonic anemometer, model WindMaster Pro
CO2 Flux 3m; 3D sonic anemometer, model WindMaster Pro
Soil Heat Flux not measured

Further information available on flux data here.

SOIL INSTRUMENTATION AND DESCRIPTION:

Soil Temperature -0.05, -0.15, -0.25, -0.35, -0.60 heights; Model 229L Matric Potential Sensor, Campbell Scientific, Inc.
Soil Moisture -0.05, -0.15, -0.25, -0.35, -0.60 heights; Model 229L Matric Potential Sensor, Campbell Scientific, Inc.
Further information available on soil data here.

RADIOSONDE INSTRUMENTATION AND DESCRIPTION:

No data of this type at this station.

Site References

Literature:

Presentations:

CPPA (13 March 2007; Washington , DC, USA)
GAPP (10 March 2004; Irvine, Calif ornia, USA)
GAPP (31 March 2003; Berlin, Germany)
GAPP (6 March 2002; Tokyo, Japan)

Data Sets and Documentation: