Tech & Sources
Software
GDAL, PostgreSQL/PostGIS, MapServer, Apache
Languages
Bash, SQL
Data Sources (one or more):
U.S. Geological Survey (USGS), U.S. Forest Service (USFS), National Elevation Data (NED), National Land Cover Data(NLCD), National Hydrography Data (NHD), Tiger/Line Census, 3D Elevation Program (3DEP), Geographic Names Information Service (GNIS), Open Street Map (OSM), Protected Areas Database v2.1 (PAD), National Interagency Fire Center (NIFC), National Weather Service (NWS), NASA, NOAA, National Wildfire Coordinating Group (NWCG), AirNOW.gov, U.S. Department of Interior (DOI), National Digital Forecast Database (NDFD), European Space Agency (ESA), USAFacts.org, ESRI, Google, Continental Divide Trail Coalition, Appalachian Trail Conservancy (ATC), National Snow and Ice Data Center (NSIDC), PRISM Climate Data Oregon State University, et al, and data collected in the field (trail trace)
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Notes
The following uses a 'mean' raster created from SNODAS rasters Nov 2003 to present. The current date SNODAS raster and mean raster are used to determine the percent of average using gdal_calc.py
WMS Resource:
https://gis.postholer.com/services/reflect?
layers=nlcdlite,statelines,countylines,swechg,demshade,trace,milemarker,wptByTrailType,pop
&poppriority=5
&types=112
&trail_id=1
&ids=2,3
&chgdate=20100401
&height=800
&t_srs=EPSG:3857
&bbox=-120.67,37,-117.69,39.33
&format=image/png
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