SMEX02 Iowa Soil Moisture Field Data With Photographs

SMEX02 Land Surface Information contains ancillary field data from the Iowa Soil Moisture Experiment 2002. The dataset combines geolocation coordinates, surface roughness measurements, and supporting photographs for the study region. It is provided by the National Snow and Ice Data Center (NSIDC).

Use Cases

• Validating satellite-based soil moisture estimates using precise ground geolocation data.
• Analyzing the relationship between measured surface roughness and soil moisture conditions.
• Providing visual context for field sites through accompanying photographs.
• Supporting the calibration of microwave remote sensing models for soil moisture.

Strengths

• Data originates from a controlled, well-documented field experiment (SMEX02).
• Includes multiple data modalities: geospatial coordinates, physical measurements, and photographs.

Limitations

• Specific column names, row counts, and file sizes are not provided by any source.
• Conflicting last updated dates exist: one source states 2002-07-12, while others state 2026-03 12.

Provenance

Source

National Snow and Ice Data Center (NSIDC).

Collection Method

Collected as ancillary ground data during the Iowa Soil Moisture Experiment 2002 (SMEX02) field campaign.

Time Range

2002

Freshness

2026-03-12 21:21:19.995108

Geography

Iowa, USA (SMEX02 study region).