LaNDWI

LaNDWI is a containerized Landsat 8 processing tool for timeseries NDWI analysis.

Inputs

A directory containing compressed Landsat 8 data, and corner cordinates for your region of interest.

Outputs

The origional Landast 8 data cropped to your region of interest and sorted by cloudcover as well as the results of the NDWI analysis for each non-cloudy day.

Arguments and Flags

• Positional Arguments:
  • Directory containing compressed Landsat 8 data: 'indir'
• Required Arguments:
  • Corner cordinates of GPS bounding box for your region of intrest: '-b', '--bounding_box'
• Optional Arguments:
  • Strictness of cloud detection: '-c', '--how_strict', default = 0.7 (the lower the value the more strict)

Workflow for finding GPS bounding cordinates.

1. Download the Earth Explorer Bulk Download Application
   • https://dds.cr.usgs.gov/bulk
2. Use the Bulk Download Application and the Earth Eplorer Website in order to bulk download compressed Lansat-8 data in your region of intrest
3. Uncompress one TAR
4. Use QGIS to visualize one band
5. Zoom into your ROI
6. Use the QGIS 'Lat Lon Tools' plugin to copy the canvas coordinates
7. Run the container using the canvas cordinates as the -b flag

Example Deployment

singularity build landwi.img docker://travissimmons/landwi

singularity run landwi.img {PATH TO COMPRESSED DATA} -b {PASTE CORNER COORDINATES}