SMEX03 Soil and Atmospheric Measurements from Oklahoma SCAN Stations

Soil Moisture Experiment 2003 (SMEX03) data from Soil Climate Analysis Network stations in Fort Reno and Little Washita, Oklahoma, USA. The dataset contains sensor measurements of soil and atmospheric variables. It was produced by the National Aeronautics and Space Administration, with the experiment concluding in July 2003.

Use Cases

• Analyzing soil moisture and soil temperature trends for agricultural water management.
• Correlating atmospheric variables like air temperature, humidity, and wind speed with soil conditions.
• Studying precipitation amounts in relation to soil water content changes.
• Validating remote sensing soil moisture products with ground-based station data.
• Investigating diurnal and seasonal cycles in surface atmospheric radiation and temperature.

Strengths

• Data originates from a controlled field experiment (SMEX03) designed for soil moisture validation.
• Includes measurements from multiple, specific geographic sites (Fort Reno and Little Washita, OK).
• Covers multiple related environmental domains: soil moisture/temperature and key atmospheric variables.

Limitations

• Conflicting last update dates: NASA Earthdata lists 2003-07-31, while Data.gov lists 2026-03-12, suggesting potential metadata errors.
• Exact row count, file size, and specific column names are not provided by any source.
• License is ambiguously listed as 'other-license-specified' without clear terms.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Measurements from sensors at Soil Climate Analysis Network (SCAN) stations during the SMEX03 field campaign.

Time Range

2003

Freshness

2003-07-31 23:59:59.999000

Geography

Fort Reno and Little Washita, Oklahoma, USA