SMEX03 Soil Characteristics for Alabama, Georgia, and Oklahoma

SMEX03 Ancillary Soil Characteristics data set contains soil property data for regional study areas in Alabama, Georgia, and Oklahoma from the 2003 Soil Moisture Experiment. The data were extracted from a multi-layer soil characteristics database for the conterminous United States and processed using ESRI ArcMap software. The dataset is provided by the National Aeronautics and Space Administration.

Use Cases

• Analyzing spatial patterns of soil bulk density and porosity for hydrological modeling.
• Correlating soil texture classifications with in-situ soil moisture measurements.
• Mapping soil respiration potential across different land surface types in the southeastern and central US.
• Validating satellite-derived soil moisture estimates using ground-based soil characteristic data.

Strengths

• Data covers three distinct regional study areas (Alabama, Georgia, Oklahoma), providing regional comparison.
• Derived from a multi-layer soil characteristics database for the conterminous United States, ensuring a standardized source.
• Generated using professional GIS software (ESRI ArcMap), indicating structured geospatial processing.

Limitations

• Exact row count, file size, and specific column names are not provided by any source.
• Conflicting last updated dates exist between platforms (2003-07-31 on NASA Earthdata vs. 2026-03-12 on Data.gov).
• The license is ambiguously listed as 'other-license-specified' without clear terms.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Extracted from a multi-layer soil characteristics database and generated using Environmental Systems Research Institute (ESRI) ArcMap software.

Time Range

2003

Freshness

2026-03-12 22:25:01.494064

Geography

Regional study areas of Alabama, Georgia, and Oklahoma, USA.