Skip to main content
Advanced Search

Filters: Tags: Upper Colorado River Basin (X)

93 results (82ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
This dataset contains the predicted probability of occurrence for modeled distributions of white sucker.
thumbnail
This dataset contains the predicted probability of occurrence for modeled distributions of sockeye salmon.
thumbnail
This data layer is the conservation rank data for drainage catchments in the Upper Colorado River Basin. Some smaller catchments were not ranked.
thumbnail
Streamflow and basin-characteristic data are needed for a variety of scientific and managerial applications, including estimation of flow in ungaged basins and hydro-ecological classification of rivers. These data are collected by a variety of organizations, usually on a state-by-state basis. The existing network of streamflow gaging stations within the SRLCC provides much useful data. However, because it is not feasible to operate gaging stations at all locations where planning, structure design, or water-management decisions will be made, resource managers, scientists, and stakeholders need a reliable means to project information from gaged to ungaged locations using standard statistical techniques. The spatial...
Categories: Data, Project; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AZ-01, Arizona, CO-02, CO-03, CO-05, All tags...
thumbnail
Populations of the endangered razorback sucker (Xyrauchen texanus) in the middle Green River have declined since closure of Flaming Gorge Dam in 1962. The apparent cause for the decline is a lack of successful recruitment. Recruitment failure has been attributed to habitat alteration and competition and predation by exotic fishes on early life stages of razorback sucker. This study was conducted to evaluate two of the potential reproductive bottlenecks that might limit recruitment of razorback sucker in the Green River Drainage; (1) reduced larvae production due to sediment deposition on spawning areas, and (2) reduced survival of larvae or juveniles due to lack of timely access to food-rich backwater and floodplain...
thumbnail
This USGS Data Release represents Soil-Water Balance (SWB) groundwater recharge modeling results for the Upper Colorado River Basin (UCRB). The data release was produced in compliance with 'open data' requirements as a way to make the scientific products associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results from runs using projected climate data, summarized by sub-basin on a monthly basis, and there are 4 separate datafiles associated with this Data Release: 1. SWB model results for actual evapotranspiration (AET), summarized by sub-basin on a monthly basis from 1950 through 2099 2. SWB model results for potential evapotranspiration (PET), summarized...
thumbnail
Our objective was to model mean annual number of zero-flow days (days per year) for small streams in the Upper Colorado River Basin under historic hydrologic conditions on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between zero-flow days per year on gaged streams (115 gages) and environmental variables....
Used first paragraph of article as the abstract: We collected an adult gizzard shad (Doro- soma cepedianum) from the San Juan River just upstream of Lake Powell, Utah, on 6 June 2000. This represents the first documented occurrence of the species in the Colorado River or its tributaries. The adult male (35 cm TL, 470 g) was taken by trammel net from a small (0.5 ha), shallow (<2 m) backwater along with several other fish that included 3 endan- gered razorback sucker (Xyrauchen texanus). The specimen is stored at the Museum of Southwestern Biology, University of New Mexico, Albuquerque (curation number 49122). Published in Western North American Naturalist, volume 64, issue 1, on pages 135 - 136, in 2004.
thumbnail
This dataset contains the predicted probability of occurrence for modeled distributions of bluehead sucker.
thumbnail
This dataset contains the predicted probability of occurrence for modeled distributions of razorback sucker.
thumbnail
Streamflows in late spring and summer have declined over the last century in the western U.S. and mean annual streamflow is projected to decrease by six to 25% over the next 100 years. In arid and semi-arid regions of the western US, it is likely that some perennial streams will shift to intermittent flow regimes in response to climate-driven changes in timing and magnitude of precipitation, runoff, and evaporation.The project will address the following two research question: how will small stream (1st-3rd order) low flow hydrology be impacted by predicted longer, drier summers in the Upper Colorado River Basin under climate change and in turn, what will be the resulting impacts on riparian plant communities?...
Categories: Data, Project; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AZ-01, Applications and Tools, Arizona, CO-03, Colorado, All tags...
thumbnail
Our objective was to model specific mean daily flow (mean daily flow divided by drainage area [cubic feet per second per square mile]) on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate.We used a random forest modeling approach to model the relation between specific mean daily flow on gaged streams (115 gages) and environmental variables. We then projected specific mean...
thumbnail
Our objective was to model specific minimum flow (mean of the annual minimum flows divided by drainage area [cubic feet per second per square mile]) on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between specific minimum flow on gaged streams (115 gages) and environmental variables. We then projected...
thumbnail
Our objective was to model the risk of becoming intermittent under drier climate conditions on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a conditional inference modeling approach to model the relation between intermittency status on gaged streams (115 gages) and selected mean and minimum flow metrics. We then projected intermittency status and if a stream...
This article evaluates drought scenarios of the Upper Colorado River basin (UCRB) considering multiple drought variables for the past 500 years and positions the current drought in terms of the magnitude and frequency. Drought characteristics were developed considering water-year data of UCRB’s streamflow, and basin-wide averages of the Palmer Hydrological Drought Index (PHDI) and the Palmer Z Index. Streamflow and drought indices were reconstructed for the last 500 years using a principal component regression model based on tree-ring data. The reconstructed streamflow showed higher variability as compared with reconstructed PHDI and reconstructed Palmer Z Index. The magnitude and severity of all droughts were...
thumbnail
Modeling streamflow is an important approach for understanding landscape-scale drivers of flow and estimating flows where there are no streamgage records. In this study conducted by the U.S. Geological Survey in cooperation with Colorado State University, the objectives were to model streamflow metrics on small, ungaged streams in the Upper Colorado River Basin and identify streams that are potentially threatened with becoming intermittent under drier climate conditions. The Upper Colorado River Basin is a region that is critical for water resources and also projected to experience large future climate shifts toward a drying climate. A random forest modeling approach was used to model the relationship between streamflow...
thumbnail
These data (vector and raster) were compiled for spatial modeling of salinity yield sources in the Upper Colorado River Basin (UCRB) and describe different scales of watersheds in the Upper Colorado River Basin (UCRB) for use in salinity yield modeling. Salinity yield refers to how much dissolved salts are picked up in surface waters that could be expected to be measured at the watershed outlet point annually. The vector polygons are small catchments developed originally for use in SPARROW modeling that break up the UCRB into 10,789 catchments linked together through a synthetic stream network. The catchments were used for a machine learning based salinity model and attributed with the new results in these vector...
thumbnail
This dataset contains the predicted probability of occurrence for modeled distributions of Colorado River cuttroat trout.
thumbnail
This dataset contains the predicted probability of occurrence for modeled distributions of channel catfish.


map background search result map search result map Modeling Low Stream Flows and Assessing the Ecological Impacts of Potential Stream Drying under Climate Change in the Upper Colorado River Basin Upper Colorado River Basin Conservation Ranks White Sucker Predicted Probability of Distribution Bluehead Sucker Predicted Probability of Distribution Channel Catfish Predicted Probability of Distribution Colorado River Cutthroat Trout Predicted Probability of Distribution Sockeye Salmon Predicted Probability of Distribution Razorback Sucker Predicted Probability of Distribution Upper Colorado River Basin Catchment Conservation Ranks Stream-Gage Database Development and Network Analysis Predicted specific mean daily flow of small streams in the Upper Colorado River Basin based on historic flow data Predicted specific minimum flow of small streams in the Upper Colorado River Basin based on historic flow data Predicted hydrology (intermittency) of a given stream reach under drier climate conditions in the Upper Colorado River Basin Predicted mean annual number of zero-flow days Modeled Streamflow Metrics on Small, Ungaged Stream Reaches in the Upper Colorado River Basin UCRB SWB Model Results - Projected Climate Data - Monthly Results by Sub-Basin Salinity yield modeling spatial data for the Upper Colorado River Basin, USA Modeled Streamflow Metrics on Small, Ungaged Stream Reaches in the Upper Colorado River Basin Modeling Low Stream Flows and Assessing the Ecological Impacts of Potential Stream Drying under Climate Change in the Upper Colorado River Basin White Sucker Predicted Probability of Distribution Bluehead Sucker Predicted Probability of Distribution Channel Catfish Predicted Probability of Distribution Colorado River Cutthroat Trout Predicted Probability of Distribution Sockeye Salmon Predicted Probability of Distribution Razorback Sucker Predicted Probability of Distribution Upper Colorado River Basin Catchment Conservation Ranks Stream-Gage Database Development and Network Analysis UCRB SWB Model Results - Projected Climate Data - Monthly Results by Sub-Basin Predicted hydrology (intermittency) of a given stream reach under drier climate conditions in the Upper Colorado River Basin Upper Colorado River Basin Conservation Ranks Predicted mean annual number of zero-flow days Predicted specific mean daily flow of small streams in the Upper Colorado River Basin based on historic flow data Predicted specific minimum flow of small streams in the Upper Colorado River Basin based on historic flow data Salinity yield modeling spatial data for the Upper Colorado River Basin, USA