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Interactive Maps

Interactive Maps

Click image for interactive map. Above static image does not reflect current conditions.

Tech & Sources

Software
GDAL, PostgreSQL/PostGIS, MapServer, Apache, Google Maps API v3

Languages
PHP, JavaScript, HTML, CSS

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)

Notes

Process:
Using WMTS/WFS layers served by MapServer/Apache, server side index.php creates intial map as defined by client URI, JavaScript updates dynamic map as specified by client.

WMS Resource:
https://gis.postholer.com/services/reflect?
   layers=nlcdlite,demshade,countylines,statelines,trace,pttrailtemp
   &bbox=-125.09,47.49,-119.76,49.06
   &trail_id=27
   &width=1024
   &t_srs=EPSG:3857
   &format=image/png

WFS Resource:
https://gis.postholer.com/services/reflect?
   service=WFS
   &typename=pttrailtemp
   &trail_id=27
   &srs=EPSG:4269
   &outputformat=json
   &bbox=-125.09,47.49,-119.76,49.06

Interactive map using WMTS:
https://www.postholer.com/google-map/Pacific-Northwest-Trail/27?
   vw=1
   &zoom=9
   &lat=48.280389
   &lon=-122.427149
   &pttrailtemp=1

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