Skip to main content
USGS - science for a changing world
Advanced Search

Filters: Tags: SIFN (X)

38 results (49ms)   

View Results as: JSON ATOM CSV
thumbnail
Ecologically relevant river size classes for NHDPlus v1 flowlines in the 14 state SARP region. Size class was determined for each river flowline using the cumulative drainage area from NHDPlus v1 dataset. The data are scaled to show the largest rivers at the regional scale. Zoom into the map for smaller rivers, creeks, and headwaters. 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
thumbnail
Ecologically relevant river elevation classes for NHDPlus v1 flowlines in the 14 state SARP region. Elevation 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
thumbnail
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...
thumbnail
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
thumbnail
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 thermopower generation in 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...
thumbnail
River classification by months of high and low flow and range of variability.  Original gage point data was extrapolated to near by areas using the Watershed Boundary Dataset, the Baseflow Index grid, gage data, and expert review.For more information about the hydrologic classes and how this attribute was developed for the Southern Instream Flow Network (SIFN), go to attached report or visit http://www.southeastaquatics.net/sarps-programs/sifn/instream-flow-resources.  Your comments about this map and the attribute databases are welcome. Please send comments to the map author using the comment tab below.
thumbnail
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 distrbution of Orangethroat darter (Etheostoma spectabile) in Texas, Oklahoma, and Louisiana.  NHDplus segments are coded for the likelihood of the Orangethroat darter 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...
thumbnail
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 Arkansas River Shiner (Notropis girardi) in Texas, Oklahoma, and Louisiana.  NHDplus segments are coded for the likelihood of the Arkansas River Shiner 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...
thumbnail
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 industrial water use 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 Â...
thumbnail
Cumulative Risk of Flow Alteration from Surface Water Consumption within the Network Catchment, symbolized with flowlines
thumbnail
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 maximum monthly 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...
thumbnail
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 local 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...
thumbnail
The SARP River Classification Framework provides consistent categories of ecologically relevant attributes for streams and rivers across the region at the NHD+ segment scale. The attributes that are currently available include: 1) stream size: by basin area and mean annual flow; 2) gradient: by average segment slope; 3) EPA Level 3 Ecoregion; 4) TNC Freshwater Ecoregion; and 5) Ecological Drainage Units.  For more detailed information, go to the SIFN page on the SARP website at http://www.southeastaquatics.net/sarps-programs/sifn
thumbnail
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...
thumbnail
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 distrbution of the Lithophilic Fish Guild in Texas, Oklahoma, and Louisiana.  NHDplus segments are coded for the likelihood of fish species dependent on clean sand, gravel, cobble, or other coarse mineral substrate for habitat 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)....
thumbnail
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 flow-sensitive Sucker fish species in Texas, Oklahoma, and Louisiana. NHDplus segments are coded for the likelihood of native suckers (particularly Moxostoma spp) 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).  The fish species in this...
thumbnail
Total Surface water withdrawals by County in 2005, in Mgal/d
thumbnail
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) due to evaporative loss from artificial water bodies in local catchments for the 14-state SARP region. Â The amount of water body surface is based on high resolution NHD and linked to NHD+ catchments. Â The risk is based on the percentage of the catchment land surface covered by artificial water bodies (100 x water body surface area / watershed surface area) Risk of flow alteration categories: Â Â Â Â Â Â Â Â Â ZERO -Â Â Â Â Â Â 0% land covered by artificial...
thumbnail
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 mining 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...
thumbnail
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 domestic and livestock 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%,...


map background search result map search result map Total Surface-water withdrawals by County in 2005, in Mgal/d Risk of Flow Alteration from Total Surface Water Use in the Upstream River Network (VERSION 1) Maximum Monthly Risk of Flow Alteration by Water Use Sector for Texas and Oklahoma Draft - Risk of Altered Base Flow Variability Due to Human Impacts Draft - Potential distrbution of Orangethroat darter (Etheostoma spectabile) Draft - Potential distrbution of the Lithophilic Fish Guild Draft - Potential distribution of Arkansas River Shiner (Notropis girardi) Draft - Risk of Alteration of Magnitude of Extreme Low and Base Flows Risk of Flow Alteration from Local Surface Water Use in Texas and Oklahoma (VERSION 2) Risk of Flow Alteration from Artificial Waterbodies in Local Catchments of the SARP Region Draft - Potential Distribution of Flow Sensitive Sucker Fish Species GCPLCC Flow Seasonality Monthly Cumulative Risk of Flow Alteration from Thermoelectric Power Surface Water Use in Oklahoma Monthly Cumulative Risk of Flow Alteration from Industrial Surface Water Use in Texas and Oklahoma Monthly Cumulative Risk of Flow Alteration from Mining Surface Water Use in Texas and Oklahoma Monthly Cumulative Risk of Flow Alteration from Domestic and Livestock Surface Water Use in Texas and Oklahoma SARP River Elevation Classification SARP River Basin Area Size Classification Aquatic Conservation Priority Areas Rivers and Streams Classification Monthly Cumulative Risk of Flow Alteration from Thermoelectric Power Surface Water Use in Oklahoma Rivers and Streams Classification Aquatic Conservation Priority Areas Maximum Monthly Risk of Flow Alteration by Water Use Sector for Texas and Oklahoma Risk of Flow Alteration from Local Surface Water Use in Texas and Oklahoma (VERSION 2) Monthly Cumulative Risk of Flow Alteration from Industrial Surface Water Use in Texas and Oklahoma Monthly Cumulative Risk of Flow Alteration from Mining Surface Water Use in Texas and Oklahoma Monthly Cumulative Risk of Flow Alteration from Domestic and Livestock Surface Water Use in Texas and Oklahoma GCPLCC Flow Seasonality Risk of Flow Alteration from Total Surface Water Use in the Upstream River Network (VERSION 1) Draft - Risk of Altered Base Flow Variability Due to Human Impacts Draft - Potential distrbution of Orangethroat darter (Etheostoma spectabile) Draft - Potential distrbution of the Lithophilic Fish Guild Draft - Potential distribution of Arkansas River Shiner (Notropis girardi) Draft - Risk of Alteration of Magnitude of Extreme Low and Base Flows Risk of Flow Alteration from Artificial Waterbodies in Local Catchments of the SARP Region Draft - Potential Distribution of Flow Sensitive Sucker Fish Species SARP River Elevation Classification SARP River Basin Area Size Classification Total Surface-water withdrawals by County in 2005, in Mgal/d