Landsat 5 and 7 Land Surface Brightness Temperatures from SMEX02

NASA's SMEX02 dataset provides land surface brightness temperatures derived from Landsat 5 TM and Landsat 7 ETM+ thermal infrared bands. The data is stored in BIN, ISO, and HTML file formats. The dataset was originally released in 2002, though metadata records show a conflicting administrative update date of 2026.

Use Cases

• Validating satellite-derived land surface temperature (LST) algorithms using thermal band brightness temperatures.
• Analyzing spatial patterns of surface heat flux and urban heat islands from geospatial thermal data.
• Studying temporal changes in surface temperature for hydrological and agricultural applications.
• Cross-calibrating thermal sensors between Landsat 5 Thematic Mapper and Landsat 7 Enhanced Thematic Mapper+ instruments.

Strengths

• Data originates from the authoritative NASA organization, ensuring a high standard of calibration and processing.
• Provides thermal data from two established satellite platforms, Landsat 5 and Landsat 7, offering a basis for comparison.

Limitations

• Critical metadata conflicts exist: the original dataset date is 2002, but an administrative record shows an update in 2026, creating uncertainty about data currency.
• No concrete information on dataset size, row count, or specific column names is available from the provided sources.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Derived from Landsat 5 Thematic Mapper (TM) and Landsat 7 Enhanced Thematic Mapper+ (ETM+) thermal bands.

Time Range

null

Freshness

2002-07-17 23:59:59.999000

Geography

Land surface areas covered by the SMEX02 (Soil Moisture Experiment 2002) campaign, likely focused on specific regional study sites.