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SGP97 Surface: NOAA/ATDD Little Washita, Oklahoma Long Term Flux Site
The Southern Great Plains 1997 (SGP97) Hydrology Experiment originated from an interdisciplinary investigation, "Soil Moisture Mapping at Satellite Temporal and Spatial Scales" (PI: Thomas J. Jackson, USDA Agricultural Research Service, Beltsville, MD) selected under the NASA Research Announcement 95-MTPE-03. The temporal coverage for this dataset is as follows: Begin datetime: 1997-05-31 00:00:00, End datetime: 1997-08-09 23:59:59. NOAA/ATDD (Tilden Meyers) started operation of a long term flux monitoring site near the Little Washita watershed in Oklahoma in 1996. Half-hourly observations of wind speed and direction, air temperature, relative humidity, pressure, incoming global radiation, incoming and outgoing visible radiation, net radiation, ground heat flux, precipitation, wetness, skin temperature, soil temperature (at 2, 4, 8, 16, 32 and 64 cm), average wind vector speed, kinematic shear stress, streamwise velocity variance, crosswind velocity variance, vertical velocity variance, sensible heat flux, latent energy flux, CO2 flux and soil moisture at 20 cm (started 5 June 1997).
Resources in this dataset:
Resource Title: GeoData catalog record.
File Name: Web Page, url: https://geodata.nal.usda.gov/geonetwork/srv/eng/catalog.search#/metadata/SGP97NOAAflux_JJM_2015-04-27_0942
Funding
Agricultural Research Service
National Science Foundation
History
Data contact name
Meyers, TildenData contact email
tilden.meyers@noaa.govPublisher
National Center for Atmospheric Research / Earth Observing LaboratoryIntended use
SGP97 is set in a subhumid environment during early summer. Within this setting, the objectives of SGP97 are (1) to establish that the retrieval algorithms for surface soil moisture developed at higher spatial resolution using truck- and aircraft-based sensors can be extended to the coarser resolutions expected from satellite platforms; (2) to verify spatial-temporal estimators of soil moisture and to examine the utility of pedotransfer function in hydrologic modeling; (3) to examine the feasibility of inferring soil moisture and temperature profiles using surface observations in conjunction with in situ measurements, and (4) to examine the effect of soil moisture on the evolution of the atmospheric boundary layer and clouds over the Southern Great Plains during the warm season.Temporal Extent Start Date
1997-05-31Temporal Extent End Date
1997-08-09Theme
- Not specified
Geographic Coverage
{"type":"FeatureCollection","features":[{"geometry":{"type":"Polygon","coordinates":[[[-98,35],[-97.5,35],[-97.5,34.5],[-98,34.5],[-98,35]]]},"type":"Feature","properties":{}}]}ISO Topic Category
- climatologyMeteorologyAtmosphere
- environment
- farming
Ag Data Commons Group
- Southern Plains
- Long-Term Agroecosystem Research
National Agricultural Library Thesaurus terms
soil water; satellites; watersheds; wind speed; air temperature; relative humidity; heat transfer; soil temperature; shear stress; skin temperature; variance; carbon dioxide; summer; hydrologic models; temperature profiles; Great Plains region; warm seasonOMB Bureau Code
- 005:18 - Agricultural Research Service
OMB Program Code
- 005:040 - National Research
Pending citation
- No
Public Access Level
- Public
