SMEX03 Oklahoma Soil Moisture Geolocation Data

Geographic coordinates collected for the Soil Moisture Experiment 2003 (SMEX03) in Oklahoma. The dataset is an ancillary product from the experiment, managed by the NSIDC. Documentation and support for this data set are limited as they were provided solely by the Principal Investigator(s).

Use Cases

• Providing ground truth geolocation for correlating satellite or airborne soil moisture measurements from SMEX03.
• Spatial analysis of soil moisture sampling sites within the Oklahoma study region.
• Integrating location data with other SMEX03 datasets for comprehensive site-specific analysis.

Strengths

• Data originates from a focused scientific field campaign (Soil Moisture Experiment 2003).
• Dataset is hosted on multiple authoritative platforms (NASA Earthdata, Data.gov), indicating recognized importance.

Limitations

• Critical metadata is missing: column names, row count, and exact file size are unknown across all sources.
• Conflicting 'last updated' dates exist (2003-07-01 and 2026-03-12), creating uncertainty about provenance.
• Documentation and support are explicitly noted as limited, as it was not reviewed or edited by NSIDC.

Provenance

Source

Principal Investigator(s) of the Soil Moisture Experiment 2003 (SMEX03), archived by NSIDC.

Collection Method

Collected as part of the SMEX03 field campaign; specific collection method unknown.

Time Range

2003

Freshness

2026-03-12 19:49:17.953101

Geography

Oklahoma, USA