Mapping Workflow

THE 'how-to'  DOCUMENT

A step-by-step process that leads you to the creation of a high-resolution land cover change map using Google Earth Engine.   https://new.cloudvault.usda.gov/index.php/s/pwCimBEa9KcyX8g
 

MAP SHARING PORTAL

Delivery platform for the sharing of forest change maps we produce, presented as an AGOL web app (find the layers tab), explore change maps from specific disturbance events.   https://arcg.is/1z1bvr


SCRIPTS TO SHARE

  1. Sentinel-2, 10-day NDVI change (all-lands, values thresholded, -12 pts and greater decline) -
    https://code.earthengine.google.com/d0bf80f33f706f517f7a3a2cec092835
  2. Sentinel-2, 1-year NDVI change (all-lands, pos. and neg. change values presented) -
    https://code.earthengine.google.com/0cb8deaac34707b0490d0b0865be64f5
  3. Sentinel-2 or Landsat 8, 1yr NDVI change (masked to show forest-only NDVI change) -
    https://code.earthengine.google.com/64571d55f0a6280f75447bfe32c976c8

     

RESOURCES

  1. Helpful hints  - https://new.cloudvault.usda.gov/index.php/s/PGDWJ47kzxPo3yZ
  2. HiForm Legend - https://new.cloudvault.usda.gov/index.php/s/tjZ2GpDBtkRXjXz
  3. 'Color map' file (esri .clr) - https://new.cloudvault.usda.gov/index.php/s/g5eRJwNjoBsHsLk
  4. Sign up for a Google Earth Engine account - https://earthengine.google.com/
  5. Download Google Chrome (required by EE) - https://www.google.com/chrome/