SMEX05 Multispectral Radiometer Reflectance Data for Iowa

2005 multispectral radiometer reflectance data collected over the Soil Moisture Experiment 2005 (SMEX05) area in Iowa, USA. The dataset is provided by the National Aeronautics and Space Administration (NASA) but its documentation was supplied solely by the Principal Investigators and not further reviewed by NSIDC. Its presence across multiple government data platforms indicates its established use in the research community.

Use Cases

• Validating soil moisture estimates from satellite models using ground-based reflectance measurements.
• Analyzing the relationship between land surface reflectance and soil moisture conditions.
• Studying spatial and temporal variations in radiative properties for agricultural land in Iowa.

Strengths

• Data is associated with a defined scientific field campaign (Soil Moisture Experiment 2005 - SMEX05).
• Dataset is hosted on multiple official platforms (Data.gov and NASA Earthdata), signaling peer recognition and importance.

Limitations

• Critical metadata such as row count, file size, and specific column names are unavailable from all sources.
• Documentation was provided solely by Principal Investigators and not reviewed or edited by the hosting center (NSIDC), which may limit support.
• Sources conflict on the last updated date (2005-07-08 vs. 2026-03-12), creating uncertainty about maintenance.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected via multispectral radiometer over the SMEX05 area.

Time Range

2005

Freshness

2026-03-12 21:33:44.705816

Geography

Soil Moisture Experiment 2005 (SMEX05) area, Iowa, USA