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Note:  The contents of this map are still under development and are being made available for illustration purposes only.  These data are not to be used without permission by the map author.Risk of altered ecologically significant components of the flow regime due to human impacts. The SARP Flow Alteration Assessment provides a regional characterization of the distribution and risk of altered flow regimes at the NHD+ segment scale. The human impacts include runoff from impervious surfaces, evaporative losses from artificial water bodies, and surface water use. Impacts of these activities on selected ecologically significant components of the flow regime are given in the attached document. These flow components...
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Maps of priority conservation areas were obtained for DOI and USFS protected lands, state wildlife action plans, SARP regional threat assessment maps, TNC ecoregional portfolios (see map on left), and others. Conservation status was assigned to NHD+ river segments. The Aquatic Conservation Area report to the SALCC documents attempts to designate a single set of priority areas from these resources (see link below). Due to inconsistencies in the objectives and methods used to designate priority areas among states and other groups, the effort was not successful for the SALCC. Another attempt will be made for the GCPLCC project.  For more detailed information, go to the SIFN page on the SARP website at http://www.southeastaquatics.net/sarps-programs/sifn
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Cumulative Risk of Flow Alteration from Surface Water Consumption within the Network Catchment, symbolized with flowlines


map background search result map search result map Risk of Flow Alteration from Total Surface Water Use in the Upstream River Network (VERSION 1) Draft - Risk of Alteration of Magnitude of Extreme Low and Base Flows Aquatic Conservation Priority Areas Aquatic Conservation Priority Areas Risk of Flow Alteration from Total Surface Water Use in the Upstream River Network (VERSION 1) Draft - Risk of Alteration of Magnitude of Extreme Low and Base Flows