Landsat Level-1 Collection 2 provides calibrated multispectral satellite imagery of Earth's land surface. The U.S. Geological Survey produces this dataset, which spans from 1972 to the present using data from Landsat missions 1 through 9. It offers radiometrically and geometrically calibrated data with per-pixel quality assessment information.
Use Cases
- Analyze land cover change over time using calibrated multispectral bands.
- Monitor vegetation health and agricultural patterns via spectral indices derived from band data.
- Assess surface water extent and quality using specific spectral reflectance values.
- Perform radiometric calibration validation for other sensors using the established calibration standards.
- Filter data for specific analyses using the per-pixel quality assessment metadata.
Strengths
- Data spans over 50 years from 1972 to present.
- Includes imagery from nine distinct Landsat missions for continuity.
- Products are radiometrically and geometrically calibrated to established standards.
- Provides per-pixel quality assessment metadata for data selection.
Limitations
- Specific spatial resolution, row count, and file size details are not provided.
- The description does not specify the frequency of updates for new data.
- Access and processing may require specialized remote sensing software and expertise.
Provenance
- Source
- U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center.
- Collection Method
- Data captured by Landsat 1-9 satellite missions and processed to Level-1 standards.
- Time Range
- 1972 to present.
- Freshness
- null
- Geography
- Global land surface coverage.