Digital Earth Pacific Annual Surface Reflectance Composite (Landsat, GeoMAD, 30 m)

Description

This dataset provides annual cloud-free composite imagery derived from Landsat surface reflectance observations across the Pacific region using geometric median and absolute deviation (GeoMAD) methods. The data are masked for cloud, shadows and other image artefacts using the associated pixel quality product to help provide as clear a set of observations as possible from which to calculate the medians.Along with the geometric median surface reflectance bands, the GeoMAD includes three measures of variability (Euclidean, spectral and Bray- Curtis median absolute deviations: emad, smad and bcmad) and a count of clear observations. The dataset is available annually from 2000 and supports monitoring of vegetation, land cover, and coastal environments.

Update Frequency

Annually

License

Digital Earth Pacific Data is available under the Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/

Documentation

https://digitalearthpacific.org/#/applications

Managed By

Pacific Community (SPC)

See all datasets managed by Pacific Community (SPC).

Contact

dep@spc.int

How to Cite

Digital Earth Pacific Annual Surface Reflectance Composite (Landsat, GeoMAD, 30 m) was accessed on DATE from https://registry.opendata.aws/dep-ls-geomads.

Usage Examples

Tools & Applications

• Digital Earth Pacific Map by Digital Earth Pacific Contributors
  
• Digital Earth Pacific STAC Browser by Digital Earth Pacific Contributors
  

Publications

• Digital Earth Pacific Open Data Access Documentation by digitalearthpacific