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Ecologically relevant river slope classes for NHDPlus v1 flowlines in the 14 state SARP region.  Slope was derived from the NHDPlus v1 dataset. For more information about how this attribute was developed by the Southern Instream Flow Network (SIFN), go to http://www.southeastaquatics.net/sarps-programs/sifn/instream-flow-resourcesYour comments about this dataset are welcome. Please send comments to the dataset author using the Comment tab below.Â
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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.Potential Distribution of Guadalupe bass (Micropterus treculii)in Texas, Oklahoma, and Louisiana.  NHDplus segments are coded for the likelihood of the Guadalupe bass being present. The likelihood is based on the SARP river size class and Omernik Ecoregion Level III where this fish was found by state fish community sampling efforts. The fish sampling data can be downloaded from the Multistate Aquatic Resources Information System (www.marisdata.org). This fish species is thought to be sensitive to alterations in the flow...
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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 cumulative risk of flow alteration (RFA) from surface water use by water use sector for Texas and Oklahoma.  Water use is based on state permits for surface water withdrawals and returns.  The risk is based on the volume of water used monthly in the drainage area relative to the monthly volume of flow.Risk of Flow Alteration categories: ZERO     - 0% mean monthly flow depletion,  LOW      - > 0-10%,  MEDIUM - > 10-20%,  HIGH      - >20-100%, and PROVISIONAL...
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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 cumulative risk of flow alteration (RFA) from surface water use for municipalities in Texas and Oklahoma.  Water use is based on state permits for surface water withdrawals and returns.  The risk is based on the volume of water used monthly in the drainage area relative to the monthly volume of flow.  Risk of Flow Alteration categories:  ZERO     - 0% mean monthly flow depletion,  LOW      - > 0-10%,  MEDIUM - > 10-20%,  HIGH      - >20-100%, and  PROVISIONAL...
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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 -Â...
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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.Potential distribution of Alligator gar (Atractosteus spatula) in Texas, Oklahoma, and Louisiana.  NHDplus segments are coded for the likelihood of the Alligator gar being present. The likelihood is based on the SARP river size class and Omernik Ecoregion Level III where this fish was found by state fish community sampling efforts. The fish sampling data can be downloaded from the Multistate Aquatic Resources Information System (www.marisdata.org). This fish species is thought to be sensitive to alterations in the flow...
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The streams and rivers of the GCP LCC are delicately balanced ecosystems that link diverse habitats with the people, plants and animals that rely on clean and abundant water supplies to thrive. The natural patterns of seasonal flows in streams and rivers – called instream or environmental flows - are the drivers for many of the ecosystem functions and processes on which the riverine and coastal natural and human economies rely. Extreme droughts and population growth in the GCP LCC region have forced the recognition that water resources are limited and need to be better managed. Excessive extractions and diversions of water alter instream flows and threaten the ecological processes that are dependent upon them. Dams...
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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 cumulative risk of flow alteration (RFA) from surface water use for irrigation in Texas and Oklahoma.  Water use is based on state permits for surface water withdrawals and returns.  The risk is based on the volume of water used monthly in the drainage area relative to the monthly volume of flow.  Risk of Flow Alteration categories:  ZERO     - 0% mean monthly flow depletion,  LOW      - > 0-10%,  MEDIUM - > 10-20%,  HIGH      - >20-100%, and  PROVISIONAL...
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The SARP Flow Alteration Assessment provides a regional characterization of the distribution and risk of flow regime impairment by anthropogenic sources at the NHD+ segment scale. This map illustrates the annual risk of impacts to flow from evaporative loss from artificial waterbodies within the whole watershed. The cumulative risk is based on the percent of the land surface in the watershed covered by artificial water bodies (100 x water body surface area / watershed surface area) Risk categories:   ZERO -      0% land covered by artificial water bodies,                             LOW -      0-2%                            MEDIUM -Â...
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The Gulf Coast Prairie LCC (GCP LCC) is partnering with the Southeast Aquatic Resources Partnership (SARP) to ensure that the rich aquatic resources of their region (LA, OK and TX) are protected from impacts of future population growth and climate change. SARP has identified flow alteration as a priority threat and is implementing the Southern Instream Flow Research Agenda1 for the GCP LCC. This report summarizes this work and provides priority instream flow information and research needs to help guide future efforts by the GCP LCC and partners to advance instream flow science in the region. SARP’s Southern Instream Flow Research Agenda provided the framework for development of the much needed regional water resource...
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The Ecological Limits of Hydrological Alteration (ELOHA) framework calls for the development of flow-ecology hypotheses to support protection of the flow regime from ecologically harmful alteration due to human activities. As part of a larger instream flow project for the Gulf Coast Prairie Landscape Conservation Cooperative (GCP LCC), regional flow-ecology hypotheses were developed for fish, mussels, birds, and riparian vegetation (Davis and Brewer 20141). The objective of this study was to assess the usefulness of existing ecological and hydrological data to test these hypotheses or others that may be developed in the future. Several databases related to biological collections and hydrologic data from Oklahoma,...
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Landscape Conservation Cooperatives (LCCs) form a national network of partnerships working collaboratively across jurisdictions and political boundaries to address landscape-style changes and impacts to America’s land, water, wildlife and cultural resources by leveraging and sharing science capacity. The Gulf Coast Prairie LCC is partnering with the Southeast Aquatic Resource Partnership (SARP) to ensure that the rich aquatic resources of their region are protected from impacts of future population growth and climate change. SARP has identified flow alteration as a priority threat and is helping the GCPLCC to advance regional instream flow science by developing basic information necessary to support credible instream...
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River classification by months of high and low flow and range of variability.  The flow season classes are based on a multivariate clustering analysis of monthly flows for reference USGS gages in the 14 states of the SARP region.For more information about the hydrologic classes and how this attribute was developed for the Southern Instream Flow Network (SIFN), go to http://www.southeastaquatics.net/sarps-programs/sifn/instream-flow-resources.Your comments about this data layer are welcome.  Please send comments to the map author using the Comment tab below
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Total Groundwater Withdrawals by County, in Mgal/d
Tags: sarp, sifn, water use
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This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Reference gages were identified based on indicators that they...
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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.Potential Distribution of the Pelagic, broadcast spawning cyprinid fish guild in Texas, Oklahoma, and Louisiana. NHDplus segments are coded for the likelihood of cyprinid fish species that release their eggs in the river water column being present. The likelihood is based on the SARP river size class and Omernik Ecoregion Level III where fish species in this guild were found by state fish community sampling efforts. The fish sampling data can be downloaded from the Multistate Aquatic Resources Information System (www.marisdata.org)....
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These data layers represent the number of unique fish species found in each 8-digit HUC in the SARP region.  It was derived from NatureServe's Digital Distribution Maps of the Freshwater Fishes in the Conterminous United States, version 3.0.The individual species shapfiles were merged together in ArcGIS and a count of the unique fish species within each 8-digit HUC was calculated. The dataset offers 2 sets of symbology - one with 5 classes and one with 8 classes - to illustrate the range of biodiversity in the region.  ..These data are dynamic with new records frequently being added and old records being revised as new information is received. As a result, the information on this website should not be considered...
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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 cumulative risk of flow alteration (RFA) due to runoff from impervious surfaces for the 14-state SARP region. Â The amount of impervious surface is based on 2006 National Land Use/Land Cover dataset. Â 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: Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ZERO -Â Â Â Â Â 0% land covered by impervious...


map background search result map search result map Count of Fish Species per 8-digit HUC in the SARP Region Total Groundwater Withdrawals by County in 2005, in Mgal/d GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow Draft - Potential Distribution of Guadalupe bass (Micropterus treculii) Draft - Potential Distribution of Alligator gar (Atractosteus spatula) Cumulative Risk of Flow Alteration from Impervious Surfaces in the SARP Region Draft Potential Distribution of the Pelagic, Broadcast Spawning Cyprinid Guild in Texas, Oklahoma, and Louisiana Cumulative Risk of Flow Alteration from Artificial Waterbodies in the SARP Region SARP River Slope Classification Risk of Flow Alteration from Cumulative Surface Water Use for Texas and Oklahoma (VERSION 2) Monthly Cumulative Risk of Flow Alteration from Municipal Surface Water Use in Texas and Oklahoma Monthly Cumulative Risk of Flow Alteration from Irrigation Surface Water Use in Texas and Oklahoma Risk of Flow Alteration from Impervious Surface in Local Catchments of the SARP Region SARP Flow Seasonality at gages Final Report: Gulf Coast Prairie Landscape Conservation Cooperative Instream Flow Science Strategy Preliminary Testing of Flow-Ecology Hypotheses Developed for the Gulf Coast Prairie Landscape Conservation Cooperative Region Gulf Coast Prairie Landscape Conservation Cooperative Regional Hypotheses of Ecological Responses to Flow Alteration Gulf Coast Prairie Lanscape Conservation Cooperative Instream Flow Resource Worksshop Risk of Flow Alteration from Cumulative Surface Water Use for Texas and Oklahoma (VERSION 2) Monthly Cumulative Risk of Flow Alteration from Municipal Surface Water Use in Texas and Oklahoma Monthly Cumulative Risk of Flow Alteration from Irrigation Surface Water Use in Texas and Oklahoma Gulf Coast Prairie Lanscape Conservation Cooperative Instream Flow Resource Worksshop Final Report: Gulf Coast Prairie Landscape Conservation Cooperative Instream Flow Science Strategy Preliminary Testing of Flow-Ecology Hypotheses Developed for the Gulf Coast Prairie Landscape Conservation Cooperative Region Gulf Coast Prairie Landscape Conservation Cooperative Regional Hypotheses of Ecological Responses to Flow Alteration SARP Flow Seasonality at gages Draft - Potential Distribution of Guadalupe bass (Micropterus treculii) Draft - Potential Distribution of Alligator gar (Atractosteus spatula) Cumulative Risk of Flow Alteration from Impervious Surfaces in the SARP Region Draft Potential Distribution of the Pelagic, Broadcast Spawning Cyprinid Guild in Texas, Oklahoma, and Louisiana Cumulative Risk of Flow Alteration from Artificial Waterbodies in the SARP Region SARP River Slope Classification Risk of Flow Alteration from Impervious Surface in Local Catchments of the SARP Region Total Groundwater Withdrawals by County in 2005, in Mgal/d Count of Fish Species per 8-digit HUC in the SARP Region GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow