Regional Hydroclimate Project:
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CPPA (Climate Prediction Program for the Americas; formerly GAPP)
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SGP (Southern Great Plains)
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E14 (Extended Facility 14, Lamont, OK)
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Name:Steve Williams
Affiliation:
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NCAR/EOL
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3450 Mitchell Lane
Boulder, CO 80301
Telephone: (303) 497-8164
Fax: (303) 497-8770
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Latitude: 36.60700 N
Longitude: 97.48800 W
Elevation: 315 m
ARM SGP Overview Map (click for full resolution):
ARM SGP E14 Area Map (click for full resolution):
Google Earth .kmz file of CPPA SGP Reference Site station and radiosonde locations
Station Description:
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General Description:
Broad hilltop, a few hundred meters west of a valley. The pasture had been terraced to some degree and "improved" several decades previously, but has returned to a more native mix of grasses and forbs. Vegetation is greater than hip deep (if ungrazed), and roots were visible through the depth of the access pits. A layer of sandstone begins 88 cm below the surface, so sensors are installed at depths of 5, 15, 25, 35, 60, and 85 cm. The original installation in January-February 1996 only included the top five levels due to extremely dry conditions; the lowest depth (85 cm) was added in February 1997. Micrometeorological data will be representative of conditions on the broad hilltop.
Station Operator:
DOE ARM
Vegetation and Land Use:
Dominant land cover at the measurement location: pasture and wheat
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: Silt loam 28.01% sand; 54.42% silt; 17.57% clay; 0% gravel
Deeper Layers Soil Type:
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Clay (20 cm) - 18.56% sand; 37.74% silt; 43.70% clay; 0% gravel
Clay loam (30 cm) - 20.63%sand; 43.93% silt; 35.45% clay; 1.16% gravel
Surface Soil porosity: no information
Deeper Layers Soil Porosity: no information
Soil infiltration rate: no information
Bulk dry density:
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5-14 cm - 1.50 g/cm3
15-21 cm - 1.37 g/cm3
26-33 cm - 1.38 g/cm3
Saturated hydraulic conductivity: no information
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:
- 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
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No data of this type at this station.
Further information available on radiation data here.
METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:
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No data of this type at this station.
FLUX INSTRUMENTATION AND DESCRIPTION:
Further information available on flux data here.
SOIL INSTRUMENTATION AND DESCRIPTION:
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No data of this type at this station.
Further information available on soil data here.
RADIOSONDE INSTRUMENTATION AND DESCRIPTION:
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No data of this type at this station.
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Web:
Literature:
- 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)
- EOP-3/4 and beyond Data Sets and Documentation
- Surface Meteorological Data: Current Status and Browse Plots
- Soil Temperature and Moisture Data: Current Status and Browse Plots
- Flux Data: Current Status and Browse Plots
- Meteorological Tower Data: Current Status and Browse Plots
- EOP-1 Converted Format Data Sets and Documentation
- EOP-1 Native Format Data Sets and Documentation