[SoC] Week 12 Final Report: GRASS GIS Locations from Public Data

[Zechariah Krautwurst]

*Project Title:*
GRASS GIS Locations from Public Data

*Organization:*
Google Summer of Code 2017
Open Source Geospatial Foundation (OSGeo)
GRASS GIS

*Abstract:*
r.in.usgs is an add-on module for GRASS GIS that greatly simplifies the
process of downloading and using USGS raster datasets.

*Pre-GSoC:*
Before r.in.usgs was created, USGS raster imagery was selected through a
web-based interface, manually downloaded, and manually imported into GRASS
GIS through a multi-step process. The process requires prior knowledge of
USGS dataset parameters, spatial reference systems, coordinate
reprojection, computational regions, and the appropriate GRASS GIS tools
and methods.

*Added value:*
r.in.usgs provides a GRASS GIS GUI that suggests appropriate default
parameters, as well as provides advanced options for downloading available
USGS datasets. The module assembles user-input information with the
required GRASS GIS parameters and tools to automatically download, import,
reproject, and patch complex USGS raster data in a single process.

*Continued Work:*
r.in.usgs currently handles all three products from the USGS National
Elevation Dataset (NED) as well as all three products from the National
Land Cover Dataset (NLCD). Several other USGS datasets are made available
for download but each requires custom formatting and further modifications
to the r.in.usgs script processes.

Further development of the module should include continued incorporation of
USGS datasets, as well as creating accessible tools for sources of
international data. Ultimately, creating a module that allows GRASS GIS
users to contribute to a centralized, automated repository of properly
formatted publicly available datasets would provide a huge service to the
open source GIS community.

r.in.usgs will be moved into the official GRASS GIS add-ons repository in
the coming week.

*Links and Documentation:*
OSGeo project wiki:
https://trac.osgeo.org/grass/wiki/GSoC/2017/GRASSGISLocationsfromPublicData

Git repository:
https://github.com/zkwurst/GSoC2017-GRASS-GIS

Raw code:
https://raw.githubusercontent.com/zkwurst/GSoC2017-GRASS-GIS/master/r.in.usgs/r.in.usgs.py

Raw html documentation:
https://raw.githubusercontent.com/zkwurst/GSoC2017-GRASS-GIS/master/r.in.usgs/r.in.usgs.html

Google Docs version of html documentation:
https://docs.google.com/document/d/1jarl2X05A020_dv8YAcXjdPAONHrWpGnWigHWyzb3ys/edit#heading=h.gu5m0ou06qhs



Zechariah F. Krautwurst

NCSU College of Natural Resources

MGIST Candidate 2017

zfkrautw at ncsu.edu

www.zekefrank.com
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