Fractional Land Cover Images for Rondonia, Brazil (1984-2000)

250 GeoTIFF images depict the fractional composition of shade, green vegetation, non-photosynthetic vegetation, and soil across five regions in Rondonia, Brazil. The data was generated by the ORNL_CLOUD organization using spectral mixture analysis on 249 Landsat TM and one MSS scene. This 17-year time series captures land surface changes at 30-meter resolution.

Use Cases

• Tracking deforestation and regrowth patterns by analyzing changes in green vegetation (GV) and non-photosynthetic vegetation (NPV) fractions over time.
• Calibrating or validating regional-scale land cover classification models using the high-resolution fractional cover data.
• Studying soil exposure and shade dynamics related to agricultural expansion, logging, and forest degradation in the Amazon.

Strengths

• Contains 250 individual, high-resolution (30-m) image files derived from 250 satellite scenes.
• Provides a 17-year continuous time series (1984-2000) for longitudinal analysis of land cover change.
• Data is georectified to a consistent reference (Brazilian PRODES imagery), ensuring spatial alignment.

Limitations

• Sources conflict on the last updated date, listing both 2000-06-28 and 2026-03 -13, suggesting potential metadata issues.
• Specific column names or internal file structure details are not provided by any platform.
• License is ambiguously listed as 'other-license-specified', requiring further investigation for reuse.

Provenance

Source

ORNL_CLOUD

Collection Method

Derived via spectral mixture analysis (SMA) of Landsat Thematic Mapper (TM) and Multispectral Scanner (MSS) time series scenes.

Time Range

1984 to 2000

Freshness

2026-03-13 01:13:07.478080

Geography

JiParana, PortoVelho, Luiza, Ariquemes, and Cacoal regions in the state of Rondonia, Brazil.