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We analyzed 12 indicators of ecological integrity and 2 Key Ecological Attributes (KEA) to assess the current status of the Aquatic Course Filter Conservation Elements. The indicators used were: 1) Riparian Corridor Fragmentation, 2) Landscape Condition Model Index, 3) Perennial Flow Network Fragmentation by Dams, 4) Surface Water Use/Discharge Ratio, 5) Ground Water Use/Discharge Ratio, 6a) Perennial Flow Modification by Diversion Structures, 6b) Flow Modification by Dams, 7) Condition of Groundwater Recharge Zone, 8a) Atmospheric Deposition-Nitrate Loading , 8b) Atmospheric Deposition--Toxic Mercury Loading, 9) State-Listed Water Quality Impairments, 10) Sediment Loading Index, 11) Presence of Invasive Plant Species,...
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We analyzed 12 indicators of ecological integrity and 2 Key Ecological Attributes (KEA) to assess the current status of the Aquatic Course Filter Conservation Elements. The indicators used were: 1) Riparian Corridor Fragmentation, 2) Landscape Condition Model Index, 3) Perennial Flow Network Fragmentation by Dams, 4) Surface Water Use/Discharge Ratio, 5) Ground Water Use/Discharge Ratio, 6a) Perennial Flow Modification by Diversion Structures, 6b) Flow Modification by Dams, 7) Condition of Groundwater Recharge Zone, 8a) Atmospheric Deposition-Nitrate Loading , 8b) Atmospheric Deposition--Toxic Mercury Loading, 9) State-Listed Water Quality Impairments, 10) Sediment Loading Index, 11) Presence of Invasive Plant Species,...
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We analyzed 12 indicators of ecological integrity and 2 Key Ecological Attributes (KEA) to assess the current status of the Aquatic Course Filter Conservation Elements. The indicators used were: 1) Riparian Corridor Fragmentation, 2) Landscape Condition Model Index, 3) Perennial Flow Network Fragmentation by Dams, 4) Surface Water Use/Discharge Ratio, 5) Ground Water Use/Discharge Ratio, 6a) Perennial Flow Modification by Diversion Structures, 6b) Flow Modification by Dams, 7) Condition of Groundwater Recharge Zone, 8a) Atmospheric Deposition-Nitrate Loading , 8b) Atmospheric Deposition--Toxic Mercury Loading, 9) State-Listed Water Quality Impairments, 10) Sediment Loading Index, 11) Presence of Invasive Plant Species,...
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We analyzed 12 indicators of ecological integrity and 2 Key Ecological Attributes (KEA) to assess the current status of the Aquatic Course Filter Conservation Elements. The indicators used were: 1) Riparian Corridor Fragmentation, 2) Landscape Condition Model Index, 3) Perennial Flow Network Fragmentation by Dams, 4) Surface Water Use/Discharge Ratio, 5) Ground Water Use/Discharge Ratio, 6a) Perennial Flow Modification by Diversion Structures, 6b) Flow Modification by Dams, 7) Condition of Groundwater Recharge Zone, 8a) Atmospheric Deposition-Nitrate Loading , 8b) Atmospheric Deposition--Toxic Mercury Loading, 9) State-Listed Water Quality Impairments, 10) Sediment Loading Index, 11) Presence of Invasive Plant Species,...
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We analyzed 12 indicators of ecological integrity and 2 Key Ecological Attributes (KEA) to assess the current status of the Aquatic Course Filter Conservation Elements. The indicators used were: 1) Riparian Corridor Fragmentation, 2) Landscape Condition Model Index, 3) Perennial Flow Network Fragmentation by Dams, 4) Surface Water Use/Discharge Ratio, 5) Ground Water Use/Discharge Ratio, 6a) Perennial Flow Modification by Diversion Structures, 6b) Flow Modification by Dams, 7) Condition of Groundwater Recharge Zone, 8a) Atmospheric Deposition-Nitrate Loading , 8b) Atmospheric Deposition--Toxic Mercury Loading, 9) State-Listed Water Quality Impairments, 10) Sediment Loading Index, 11) Presence of Invasive Plant Species,...
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This dataset is a 100-meter cell resolution raster of estimated use of public supply water for the southwestern United States. The dataset was generated from 1:100,000-scale county boundary data, 2005 LandScan population data, and USGS estimated use of water in the United States in 2000.
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Perennial streams and selected hydrographs on perennial streams in the ecoregion. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these...
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This map shows naturalized flow change for April-July for 3 periods: 1951-1965 (historic), 2016-2030, and 2046-2060 simulated by the Bureau of Reclamation across 112 GCM scenarios. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated...
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This dataset included the number of calculated for each 5th level HUC. CE richness was calculated for the aquatic EI by summing the number of pearl dace, the northern redbelly dace x finescale dace hybrid, paddlefish, pallid sturgeon, and sauger per 5th level watershed These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The User is encouraged to carefully consider the content of the metadata file associated with these data.
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Distribution of large rivers. Distribution of small streams. Length of ice free days at current, near-term future (2020s), and long-term future (2060s) time intervals within the distribution of named rivers within the North Slope study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to...
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Snow and Ice current modeled distribution, and status. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these data.
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This model was based upon expert review, known habitat and known locations of the species. The model can be linked or joined via the "Seg_ID" to the streams layer used in this project. Using the "present" field, the predicted presence locations of the paddlefish can be shown for every stream segment in the known range of the species within the study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The User is encouraged to carefully consider the content of the metadata file associated...
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This model was developed using the boosted regression tree technique. The model was fitted using R version 2.14.0. The model can be linked or joined to the streams layer used in this project. Using the "prob" field, the predicted probability of occurrence of the pearl dace can be shown for every stream segment in the known range of the species within the study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The User is encouraged to carefully consider the content of the metadata file...
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This table contains information about the amount of each threat analysis attribute, indicator and metric quantified for the 6th level Hydrological Unit (HUC12). These attributes were calculated for the entire HUC 12, the streams within the HUC 12, or the riparian corridor within the HUC 12. The attributes were calculated using ArcMap Tools These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The User is encouraged to carefully consider the content of the metadata file associated with these data.
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This table contains information about the amount of each threat analysis attribute, indicator and metric quantified for the 6th level Hydrological Unit (HUC12). These attributes were calculated for the entire HUC 12, the streams within the HUC 12, or the riparian corridor within the HUC 12. The attributes were calculated using ArcMap Tools. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The User is encouraged to carefully consider the content of the metadata file associated with these data.
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The Vista tool is used to create a Scenario of the CAs affecting the North American Warm Desert Lower Montane Riparian Woodland, Shrubland and Stream CE and applies user-input Landscape Condition Model (LCM) scores to generate ESAs for each of the CEs. The LCM consists of Site Impact scores and impact Distances for each CA category. Site Impact scores are a value between 0 and 1 representing the impact of the CA on the relevant CEs. A score close to 1 indicates negligible or no impact from that CA. A score close to 0 indicates the highest possible impact, e.g. an interstate highway that makes the area in which it occurs completely unsuitable for the CE. Distances are set in meters and extend the impact of the CA...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
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This dataset provides an estimate of aquatic biodiversity sites, based on protected and conservation lands superimposed on the NHD flowlines dataset. Caution is warrented in interpreting this dataset. While measures of aquatic biodiversity exist, they are based on localized samples that cannot be extrapolated beyond the sampling domain. These measures were not included in this dataset. Instead, it was assumed that areas within TNC Portfolio areas were identified for factors that include high aquatic biodiversity. Furthermore, it is assumed that aquatic biodiversity is higher in protected areas due to stricter controls over land and water management. However, this assumption may not be valid for stream reaches that...


map background search result map search result map BLM REA COP 2010 Potential Aquatic Biodiversity Areas BLM REA COP 2010 Wild and Scenic Rivers BLM REA SOD 2010 National Hydrography Dataset (waterbodies) BLM REA NOS 2012 Wild and Scenic Rivers in the North Slope study area BLM REA MAR 2012 Aquatic Ecosystem Ecological Status Assessment: North American Warm Desert Lower Montane Riparian Woodland, Shrubland and Stream 30m BLM REA MBR 2010 Estimated Public Supply Water Use of the Southwest Principal Aquifer (SWPA) study in 2005 BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard GW_USE_N - North American Warm Desert Wash BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard NO3_N - North American Warm Desert Wash BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard GW_USE_N - Mojave Desert Springs / Seeps BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard SW_USE_N - Mojave Desert Springs / Seeps BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard KEA_HC - Mojave Desert Lake / Reservoir BLM REA MIR 2011 CWF Number of Dams in HUC BLM REA NWP 2011 Location of Dams BLM REA NWP 2011 Pearl Dace Occurrence Probability in the Northwestern Plains BLM REA NWP 2011 Presence Model for the Paddlefish BLM REA SNK 2010 TES Ecosystems Snow Ice Status BLM REA NOS 2012 Aquatic Coarse Filter Figures I1 to I5 BLM REA NWP 2011 Aquatic Ecological Intactness CE Species Richness BLM REA COP 2010 Colorado Plateau (COP) Naturalized River Flow Changes (April-July) 1951-65, 2016-30, 2046-60 BLM REA NGB 2011 Perennial Streams and Rivers in the NGB Ecoregion BLM REA COP 2010 Wild and Scenic Rivers BLM REA MAR 2012 Aquatic Ecosystem Ecological Status Assessment: North American Warm Desert Lower Montane Riparian Woodland, Shrubland and Stream 30m BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard GW_USE_N - North American Warm Desert Wash BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard NO3_N - North American Warm Desert Wash BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard GW_USE_N - Mojave Desert Springs / Seeps BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard SW_USE_N - Mojave Desert Springs / Seeps BLM REA MBR 2010 Aquatic Coarse Filter CE Scorecard KEA_HC - Mojave Desert Lake / Reservoir BLM REA SOD 2010 National Hydrography Dataset (waterbodies) BLM REA COP 2010 Potential Aquatic Biodiversity Areas BLM REA NOS 2012 Wild and Scenic Rivers in the North Slope study area BLM REA MBR 2010 Estimated Public Supply Water Use of the Southwest Principal Aquifer (SWPA) study in 2005 BLM REA MIR 2011 CWF Number of Dams in HUC BLM REA COP 2010 Colorado Plateau (COP) Naturalized River Flow Changes (April-July) 1951-65, 2016-30, 2046-60 BLM REA NWP 2011 Location of Dams BLM REA NWP 2011 Pearl Dace Occurrence Probability in the Northwestern Plains BLM REA NWP 2011 Presence Model for the Paddlefish BLM REA NGB 2011 Perennial Streams and Rivers in the NGB Ecoregion BLM REA NWP 2011 Aquatic Ecological Intactness CE Species Richness BLM REA SNK 2010 TES Ecosystems Snow Ice Status BLM REA NOS 2012 Aquatic Coarse Filter Figures I1 to I5