Winter Runoff: Historical

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<hr /><p><span>Historical total winter (Dec-Feb) runoff.</span> This includes any overland water flows in addition to subsurface runoff in shallow groundwater. Geographic units: HUC10. </p><p>These data are part of a set that includes 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). <br /></p><p><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. </p><p>Data source: Hamlet et al. 2013.</p>