SMEX04 AVIRIS Data: Arizona Surface Reflectance

2004 surface reflectance measurements were acquired over the Soil Moisture Experiment 2004 (SMEX04) regional study area in Arizona, USA. The data set contains airborne visible and infrared imaging spectrometer measurements, likely for studying land surface properties. Columns suggest it includes spectral engineering data related to infrared and visible radiance.

Use Cases

• Estimating soil moisture levels based on surface reflectance measurements.
• Analyzing vegetation canopy characteristics from spectral reflectance data.
• Modeling land surface radiative properties using infrared and visible radiance data.
• Calibrating satellite soil moisture retrievals with airborne spectrometer data.

Strengths

• Data is associated with a specific, well-documented field experiment (Soil Moisture Experiment 2004).
• Cross-platform presence on datagov and nasa_earthdata signals its importance and curation.
• Provided by a major authoritative organization (National Aeronautics and Space Administration).

Limitations

• Documentation was provided solely by the Principal Investigator(s) and not reviewed by NSIDC, so support may be limited.
• Key metadata such as column names, row count, and file size are unknown across all sources.
• There is a conflict in reported last updated dates: 2026-04-09 on datagov vs. 2004-08-25 on nasa_earthdata.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Airborne measurements acquired via the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS).

Time Range

2004

Freshness

2026-04-09 21:58:19.407767 (datagov)

Geography

Soil Moisture Experiment 2004 (SMEX04) regional study area in Arizona, USA.