USGS Landsat: Continuous Earth Land Observation from Space

The USGS Landsat program, a joint effort with NASA, provides the longest continuous space-based record of Earth's land in existence. It includes data from Landsats 1, 2, 3, 4, 5, 7, 8, and 9, with daily satellite information to support resource and environmental decision-making. The data is provided by the United States Geological Survey.

Use Cases

• Monitor long-term land cover change based on the continuous multi-decade satellite record.
• Support natural resource management decisions based on daily Earth observation data.
• Analyze environmental trends and impacts using the multi-satellite (Landsat 1-9) imagery archive.
• Develop geospatial models for agriculture or disaster response based on the program's Earth observation data.

Strengths

• Provides the longest continuous space-based record of Earth's land, suggesting a multi-decade temporal span.
• Data is sourced from a joint NASA/USGS program, indicating institutional authority.
• Includes data from eight distinct satellite missions (Landsats 1, 2, 3, 4, 5, 7, 8, 9).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

United States Geological Survey (USGS) and NASA.

Collection Method

Collected via the Landsat series of Earth observation satellites.

Geography

Global land coverage.