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This dataset represents the prevalence of non-native vegetation species as mapped along the Colorado River bottomland from the Colorado state line (San Juan and Grand Counties, Utah) to the southern Canyonlands NP boundary, as of September 2010. This mapping was conducted as part of the Colorado River Conservation Planning Project, a joint effort between the National Park Service, The Nature Conservancy, US Geological Survey, Bureau of Land Management, and Utah Forestry Fire and State Lands.
During January-March of 1990 a study was conducted to determine the sources of sulfur oxides present at Canyonlands and Green River, Utah. Samples were collected at these two receptor sites and at several sites intended to characterize the chemical composition of air masses reaching the receptor sites from various geographical regions. The results of the sampling program have been given in the first paper in a series of three papers. In this paper, the concentrations of spherical aluminosilicate (SAS) particles, total fluoride, and particulate selenium, arsenic and lead are combined with meteorological data to obtain source fingerprints for the ratios of these species to SOx from the various regional sources that...
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Results of numerical models and field observations of regularly spaced grabens in Canyonlands National Park, Utah, demonstrate that salt flow beneath a brittle overburden accommodated recent and ongoing westward gravity spreading. Erosion of the Colorado River canyon differentially loaded the underlying viscous salt. In our models, the overlying brittle strata flexed downward toward the canyon, initiating faults near the surface that propagated downward toward the salt contact. Modeled grabens developed sequentially away from the canyon (eastward) as salt was expelled from beneath undeformed strata. After their eastern boundary faults broke through, horst blocks tilted in the opposite direction of initial flexure,...
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Sediment Data: These data include (1) physical suspended-sediment sample data including suspended silt and clay concentration, suspended-sand concentration, and suspended-sand grain size distribution, (2) bed-sediment sample data with complete grain size analyses, and (3) 15-minute acoustical sediment data measured using a multifrequency array (1MHz and 2MHz) of sidelooking acoustic Doppler profilers which includes suspended silt-and-clay concentration, suspended-sand concentration, and the median grain size of suspended sand, instantaneous silt and clay, and sand loads, and cumulative silt and clay, and sand loads. The acoustic sediment data were calibrated with the physical suspended-sediment samples. These data...
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These data consist of rectified aerial photographs, measurements of active channel width, measurements of river and floodplain bathymetry and topography, and ancillary data. These data are specific to the corridor of the Green River in Canyonlands National Park between Horseshoe Canyon and Deadhorse Canyon, Utah. The time period for these data are 1940 to 2018. The 'Channel Width' shapefile data are measurements of the active channel width of the Green River at 1-km intervals in and near Canyonlands National Park, Utah. The 'Mineral Bottom' csv data are river channel cross-sections for a 3-km study reach of the Green River upstream from Mineral Bottom, Utah. The study reach is near the mouth of Hell Roaring Canyon,...
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The 'Channel Width' shapefile data are measurements of the active channel width of the Green River at 1-km intervals in and near Canyonlands National Park, Utah. The active channel was defined as the area of the wetted, or inundated, channel as visible on aerial photographs plus the area of bare (free of vegetation) sand and gravel bars. The active channel for each aerial photograph series was hand digitized on a computer screen in ArcGIS version 9.2. The 'Mineral Bottom' csv data are river channel cross-sections for a 3-km study reach of the Green River upstream from Mineral Bottom, Utah. The study reach is near the mouth of Hell Roaring Canyon, 5 km upstream from the Mineral Bottom boat ramp, which is 85 km upstream...
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Index card: Angel Arch, along tributary of Salt Canyon. Canyonlands National Park. San Juan County, Utah. n.d. Note: Published as figure 43 in U.S. Geological Survey. Bulletin 1327. 1974. See also: lsw00035_cp, lsw00640.
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Album caption and index card: Lower Elephant Canyon, followed by jeep trail from near Silver Stairs to Elephant Hill. Canyonlands National Park. San Juan County, Utah. n.d. Note: Published as figure 58 in U.S. Geological Survey. Bulletin 1327. 1974. See also: lsw00020_ct
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Index card: Canyon Viewpoint Arch, framing Colorado River canyon at east end of Mesa Trail 0.4 mile north of Y in Island in the Sky road. Arch is in lower part of Navajo Sandstone. Canyonlands National Park. San Juan County, Utah. n.d. Note: Published as figure 18 in U.S. Geological Survey. Bulletin 1327. 1974. See also: lsw00014
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Album caption and index card: View from rim rocks southwest of The Needles, showing plateau country to the north which is cut through by both the Green and Colorado Rivers. Shows Junction Butte. Canyonlands National Park. San Juan County, Utah. October 18, 1945. (Photo by National Park Service) Note: Panorama with lsw00663, lsw00664, and lsw00665.
Anthropogenic activity is causing dramatic changes in the nitrogen (N) cycle in many ecosystems. Most research has focused on the increase in N input caused by atmospheric deposition and invasion of N-fixing species, and on their effects on resource availability and species composition. However, in contrast to many ecosystems experiencing large increases in N input, many arid ecosystems are experiencing loss of nutrients due to land-use change. An important component of many arid ecosystems on a worldwide basis is the microbiotic crust, a biological soil crust composed of lichens, cyanobacteria, mosses, and algae. Nitrogen fixation by lichens and cyanobacteria comprising the crust is the primary source of N input...
Results of numerical models and field observations of regularly spaced grabens in Canyonlands National Park, Utah, demonstrate that salt flow beneath a brittle overburden accommodated recent and ongoing westward gravity spreading. Erosion of the Colorado River canyon differentially loaded the underlying viscous salt. In our models, the overlying brittle strata flexed downward toward the canyon, initiating faults near the surface that propagated downward toward the salt contact. Modeled grabens developed sequentially away from the canyon (eastward) as salt was expelled from beneath undeformed strata. After their eastern boundary faults broke through, horst blocks tilted in the opposite direction of initial flexure,...
The White Rim Sandstone Member of the Permian Cutler Formation in Canyonlands National Park, southeastern Utah, was deposited in a coastal eolian environment. The White Rim consists of three types of eolian deposits: dune, interdune, and sabkha. Characteristics of the dune deposits are large-to medium-scale, unidirectional, tabular planar crossbed sets; high-index ripples oriented parallel to the dip direction of the foresets; inverse graded laminations formed by ripple migration; sand-flow toes; and raindrop impressions. Interdune deposits are of two types, erosional and depositional, formed under varying degrees of wetness. Erosional interdune deposits are characterized by thin, coarse sand to granule size, bimodal...
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This is a habitat suitability model riparian understory species in the Colorado River bottomland in Utah. The model incorporates the density of shrubs, the number of shrub species present, and the stillness of adjacent water. A penalty value is applied to represent tamarisk abundance as a potential risk to habitat quality.
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A model of natural recovery potential is presented along with component layers (overbank flow, abundance of native and non-native cover types) and assigned values, plus associated layers of bottomland boundaries, and the river channel at low flow (2010).
This is a habitat suitablilty map and component layers estimating bat watering habitat on the Colorado River bottomland in Utah during high flow conditions. The model combines the presence of prefered slow water channel types (backwaters, isolated pools and tributary mouths), with cover types amenable to bat overflights and drinking 'on-the-wing'. See Open File Report, Rasmussen and Shafroth, Colorado River Conservation Planning for geoprocessing details. For more detailed information, please visit this project's ScienceBase landing page at https://doi.org/10.5066/P927I36K, or the final report for this project at https://www.coloradomesa.edu/water-center/documents/rasmussen_shaftroth_2016_watercenter_cmu.pdf.
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Sixty packrat middens were collected in Canyonlands and Grand Canyon National Parks, and these series include sites north of areas that produced previous detailed series from the Colorado Plateau. The exceptionally long time series obtained from each of three sites (>48,000 C-14 yr BP to present) include some of the oldest middens yet discovered. Most middens contain a typical late-Wisconsinan glaciation mixture of mesic and xeric taxa, evidence that plant species responded to climate change by range adjustments of elevational distribution based oil individual criteria, Differences in elevational range from today for trees and shrubs ranged from no apparent change to as much as 1200 m difference. The oldest middens...
During January-March of 1990 a study was conducted to determine the sources of sulfur oxides present at Canyonlands and Green River, Utah. Samples were collected at these two receptor sites and at several sites intended to characterize the chemical composition of air masses reaching the receptor sites from various geographical regions. The results of the sampling program have been given in the first paper in a series of three papers. In this paper, the concentrations of spherical aluminosilicate (SAS) particles, total fluoride, and particulate selenium, arsenic and lead are combined with meteorological data to obtain source fingerprints for the ratios of these species to SOx from the various regional sources that...
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This dataset represents vegetation communities, river channel and bare areas (often sand bars) mapped along the Colorado River bottomland in Utah, as of September 2010. Dominant cover types were classified as 'open flight', based on height, and potential interference with bat flights over water sources. Traditional image interpretation cues were used to develop the polygons, such as shape, size, pattern, tone, texture, color, and shadow, from high resolution, true color, aerial imagery (0.3m resolution), acquired for the project. Additional, public available aerial photos (NAIP, 2011) were used to cross-reference cover classes. As with any digital layer, this layer is a representation of what is actually occurring...
map background search result map search result map Mechanics of graben evolution in Canyonlands National Park, Utah 50,000 years of vegetation and climate history on the Colorado Plateau, Utah and Arizona, USA Angel Arch along tributary of Salt Canyon. Canyonlands National Park, Utah. n.d. View from rim rocks southwest of The Needles, showing plateau country to the north. Canyonlands National Park, Utah. 1945. Estimated Recovery Potential for Colorado River Bottomland Riparian Habitats Conservation Planning for the Colorado River in Utah - Areas Open for Flight for Bat Watering Model Conservation Planning for the Colorado River in Utah - Riparian Understory Model with Tamarisk Penalty Output Data for Colorado River in Utah Conservation Planning for the Colorado River in Utah - Density of Non-Native Species for Potential for Natural Recovery Model Lower Elephant Canyon. Canyonlands National Park, Utah. n.d. Canyon Viewpoint Arch, framing Colorado River canyon at east end of Mesa Trail. Canyonlands National Park, Utah. n.d. View from Dead Horse Point. Canyonlands National Park, Utah. n.d. Channel narrowing data for the lower Green River in the Canyonlands region, Utah, USA Suspended-sediment, bed-sediment, and in-channel topographical data at the Green River at Mineral Bottom near Canyonlands National Park, and Colorado River at Potash, UT stream gages Geomorphic data for the Green River in Canyonlands, Utah, USA (ver. 1.0, June 2020) Channel narrowing data for the lower Green River in the Canyonlands region, Utah, USA Geomorphic data for the Green River in Canyonlands, Utah, USA (ver. 1.0, June 2020) Angel Arch along tributary of Salt Canyon. Canyonlands National Park, Utah. n.d. View from rim rocks southwest of The Needles, showing plateau country to the north. Canyonlands National Park, Utah. 1945. Lower Elephant Canyon. Canyonlands National Park, Utah. n.d. Canyon Viewpoint Arch, framing Colorado River canyon at east end of Mesa Trail. Canyonlands National Park, Utah. n.d. View from Dead Horse Point. Canyonlands National Park, Utah. n.d. Mechanics of graben evolution in Canyonlands National Park, Utah Suspended-sediment, bed-sediment, and in-channel topographical data at the Green River at Mineral Bottom near Canyonlands National Park, and Colorado River at Potash, UT stream gages Conservation Planning for the Colorado River in Utah - Riparian Understory Model with Tamarisk Penalty Output Data for Colorado River in Utah Conservation Planning for the Colorado River in Utah - Density of Non-Native Species for Potential for Natural Recovery Model Conservation Planning for the Colorado River in Utah - Areas Open for Flight for Bat Watering Model Estimated Recovery Potential for Colorado River Bottomland Riparian Habitats 50,000 years of vegetation and climate history on the Colorado Plateau, Utah and Arizona, USA