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Map Cloud Free Maximum Value Composites

Documentation

Create a cloud-free mosaic using the maximum index cloud-free pixel at each point. For example using the peak NDVI pixel, which will result in an rgb image of the peak growing season.

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Normalized Difference Vegetation Index (NDVI) is the most common vegetation index where NDVI = (NIR-Red) / (NIR+Red). Values of NDVI are typically: 0.6 to 0.9 (dense vegetation), 0.2 to 0.5 (grasslands), -0.1 to 0.1 (bare soil, snow), -1.0 (deep water).

Tutorial

  1. Head to the ODC Sandbox (click here) and login with GitHub.

  2. Open the /examples folder.

  3. Open and run the /examples/Landing_Page.ipynb notebook block by block.

  4. In block [2], use the map interface to draw a small area of interest, and select a time frame.

  5. Review the number of tiles that will be downloaded and click "Query Cube". Less than 100 will run quickly.

  6. Run block [3], 'band_indices_aws_landsat8', and calculate a Maximum NDVI Mosaic for a small region inside your previous bounds.

 

Code/Python Notebooks

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GitHub Resources

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