April 1st Snow Water Equivalent Map: All Scenarios

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<hr /><div><span style='font-weight:bold;'>A pre-configured, multi-layer web map for viewing all April 1st Snow Water Equivalent scenarios.</span> <span style='font-style:italic;'>(To
launch the map from the Climate Change Open Data site, select &quot;View
Metadata&quot; under the &quot;About&quot; heading, then look for the button labeled
&quot;Open in Map Viewer&quot; to the upper right.) <br /></span></div><div><br />The map layers depict historical and projected changes in the April 1st Snow Water Equivalent
(SWE), a measure of the total amount of water contained in the snowpack.
April 1st is the approximate current timing of peak annual snowpack in
the mountains of the Northwest. Results are shown only for watersheds
with an average historical April 1st SWE of at least 0.4 inch.
Geographic units: HUC10. <br /></div><div><br /></div><div>These data include historical
conditions (1970-1999, in inches) and the projected changes (in percent)
for ten global models. Two time periods are considered: the 2040s
(2030-2059) and the 2080s (2070-2099), based on a moderate greenhouse
gas scenario (A1B).<span style='font-style:italic;'><br /></span></div><div><span style='font-style:italic;'><br /></span></div><div><span style='font-style:italic;'>When rendered and displayed in Map Viewer (web map): </span>Data
classes and symbology by Robert Norheim, Climate Impacts Group, based
on the CMIP3 projections used in the IPCC 2007 report.<br /></div><div><br /></div><div>Data source: Hamlet et al. 2013.</div><div><span style='font-style:italic;'> </span></div>