The final NGSL data set was published as a map service to facilitate use and explorability of the data. An HTML/JavaScript web mapping application was developed using the Google Maps JavaScript Application Programming Interface (API) Version 3 and the ArcGIS Server Link for Google Maps API Version 3. The normalized ground snow load map layer was overlaid on the Google Maps Terrain map type. An opacity slider was added to allow users to adjust the transparency of the normalized ground snow load map layer in order to see more clearly the underlying terrain. Additionally, users are able to search for a location by entering a town name, a latitude/longitude (in decimal degrees), or a street address. A ground snow load for the location will be displayed for the user.
Additionally, users can navigate around the map by zooming in/out and moving north/south/east/west and then clicking a location on the map to determine a ground snow load value for the selected location. The latitude and longitude, elevation, normalized ground snow load, and ground snow load are displayed for the user for any selected location. The latitude and longitude, as well as the elevation value, for any location are determined from the Google Maps API. The ground snow load in psf is determined by multiplying the normalized ground snow load by the elevation in feet.
This document is not legally binding. The user is urged to verify ground snow load values with the local authority having jurisdiction.
