greenspace

Using

If my_address_file_geocoded.csv is a file in the current working directory with coordinate columns named lat and lon, then the DeGAUSS command:

docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/greenspace:0.3.0 my_address_file_geocoded.csv

will produce my_address_file_geocoded_greenspace_0.3.0.csv with added columns:

• evi_500: average enhanced vegetation index within a 500 meter buffer radius
• evi_1500: average enhanced vegetation index within a 1500 meter buffer radius
• evi_2500: average enhanced vegetation index within a 2500 meter buffer radius

Geomarker Methods

The Enhanced Vegetation Index (EVI) is a measure of greenness that ranges from -0.2 to 1, with higher values corresponding to more vegetation.

A cloud-free composite EVI raster at a resolution of 250 × 250 m was created by assembling individual images collected via remote sensing between June 10 and June 25, 2018.

Geomarker Data

• To create the EVI raster, individual tiles were downloaded from the LP DAAC MOD13Q1 product and combined using the {MODIS} R package. Then the raster was clipped and masked to the contiguous United States boundaries.

• The raster file needed to build this container is stored at s3://geomarker/modis_evi_ndvi/evi_June_2018_5072.tif

DeGAUSS Details

For detailed documentation on DeGAUSS, including general usage and installation, please see the DeGAUSS homepage.

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