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Risk of Flow Alteration from Impervious Surface in Local Catchments of the SARP Region


Original Data Basin Creation Date
2013-12-18 17:00:00
Original Data Basin Modified Date
2014-01-13 14:52:26


The SARP Flow Alteration Assessment provides a regional characterization of the distribution and risk of flow regime impairment of streams and rivers by anthropogenic sources at the NHD+ segment scale. This map illustrates the risk of flow alteration (RFA) from runoff from impervious surfaces in local catchments for the 14-state SARP region.  The amount of impervious surface is based on 2006 National Land Use/Land Cover dataset.  The risk is based on the percentage of the catchment land surface covered by impervious surfaces (100 x impervious surface area / watershed surface area: Risk of flow alteration categories:         ZERO -     0% land covered by impervious surface         LOW -      < 5%  [...]


Data Owner :
Emily Granstaff

Attached Files

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Data source
Analie Barnett (TNC), Mary Davis (SARP/SIFN), and Emily Granstaff (USFWS/SARP).<br/>
Harvested on Fri May 23 09:34:33 MDT 2014 from Data Basin Service

Additional Information


Type Scheme Key
UniqueKey Data Basin f49cb20b542b4e98b07cb98d1423f1fa

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