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Albers Equal Area | US Drought | April 2014

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Aandrewxhill
Last edited May 2, 2014
Created on May 1, 2014

A choropleth map of the United States shows drought severity from April 2014, using a dark USGS WELD tile layer as a base. CartoDB.js creates the map with Leaflet, transforming the drought polygons via ST_Translate and ST_Scale into a projected web mercator view. The choropleth colors range from yellow to dark red based on the drought magnitude (`dm`) attribute, with the CartoDB CSS template applying conditional polygon fills. The map centers on the lower 48 states at zoom level four.

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