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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E21 (Extended Facility 21, Okmulgee, 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: 35.61500 N
Longitude: 96.06500 W
Elevation: 240 m
ARM SGP Overview Map (click for full resolution):
ARM SGP E21 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:
No information
Station Operator:
DOE ARM
Vegetation and Land Use:
Dominanat land cover at the measurement location: forest
Canopy height: During the summer of 1999 the canopy height was estimated to be 14.3m.
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: no information
Deeper Layers Soil Type: no information
Surface Soil porosity: no information
Deeper Layers Soil Porosity: no information
Soil infiltration rate: no information
Bulk dry density: no information
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:
- Station pressure 19m; Vaisala Model PTB201A
- Air Temperature 17m; Campbell Scientific Model HMP35C
- Dew point 17m; derived
- Relative humidity 17m; Campbell Scientific Model HMP35C
- Specific humidity 17m; derived
- Wind speed 18m; R. M. Young Model 05103
- Wind direction 18m; R. M. Young Model 05103
- U wind component 18m; derived
- V wind component 18m; derived
- Precipitation height unspecified; Electrically heated, tipping bucket precipitation gauge, Novalynx Model 260-2500E-12
- 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
- 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 surface meteorological data here and here and 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