DIST

Overview¶

The Land Surface Disturbance (DIST) product suite identifies vegetation and land-cover disturbances caused by natural and anthropogenic events, such as wildfire, deforestation, agricultural conversion, and urban development. DIST supports OPERA’s surface-disturbance mission objective with frequent, analysis-ready disturbance maps derived from optical satellite imagery.

Product level & distribution¶

• Processing level: Level-3

• DAAC: LP DAAC

• Project: NASA OPERA (JPL)

Sub-products¶

• DIST-ALERT-HLS — near-real-time vegetation disturbance alerts generated per HLS acquisition.

• DIST-ANN-HLS — annual summary of vegetation disturbance aggregated over a calendar year.

Applications¶

• Deforestation and forest-degradation monitoring

• Wildfire progression and burn-scar mapping

• Agricultural expansion and land-use change

• Inputs for carbon accounting and biodiversity studies

Inputs¶

• Harmonized Landsat Sentinel-2 (HLS) surface reflectance

• Historical land-cover and vegetation reference layers

Coverage¶

Global land coverage, with alert cadence driven by the HLS revisit frequency.

References¶

• OPERA project page: https://www.earthdata.nasa.gov/data/projects/opera

• LP DAAC: https://lpdaac.usgs.gov/

• DIST-ALERT-HLS at LP DAAC: https://www.earthdata.nasa.gov/data/catalog/lpcloud-opera-l3-dist-alert-hls-v1-1

• DIST-ANN-HLS at LP DAAC: https://www.earthdata.nasa.gov/data/catalog/lpcloud-opera-l3-dist-ann-hls-v1-1