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SGP97 Surface: NOAA/ATDD Little Washita, Oklahoma Long Term Flux Site

dataset
posted on 2023-11-30, 08:42 authored by Tilden Meyers

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:

Funding

Agricultural Research Service

National Science Foundation

History

Data contact name

Meyers, Tilden

Data contact email

tilden.meyers@noaa.gov

Publisher

National Center for Atmospheric Research / Earth Observing Laboratory

Intended 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

1997-05-31

Temporal Extent End Date

1997-08-09

Theme

  • 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 season

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Meyers, Tilden (2020). SGP97 Surface: NOAA/ATDD Little Washita, Oklahoma Long Term Flux Site. National Center for Atmospheric Research / Earth Observing Laboratory.

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    Categories

    Keywords

    EnvironmentfarmingSoilradaratmospheric pressureSoil Temperatureland heat capacityheat fluxwind speedwind directionsurface air temperaturehumidityvisible radiancenet radiationPrecipitationcarbon dioxidewatershedshydrologydata.govARS

    Licence

    CC BY 4.0

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