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Future climates are simulated by general circulation models (GCM) using climate change scenarios (IPCC 2014). To project climate change for the sagebrush biome, we used 11 GCMs and two climate change scenarios from the IPCC Fifth Assessment, representative concentration pathways (RCPs) 4.5 and 8.5 (Moss et al. 2010, Van Vuuren et al. 2011). RCP4.5 scenario represents a future where climate policies limit and achieve stabilization of greenhouse gas concentrations to 4.5 W m-2 by 2100. RCP8.5 scenario might be called a business-as-usual scenario, where high emissions of greenhouse gases continue in the absence of climate change policies. The two selected time frames allow comparison of near-term (2020-2050) and longer-term...
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Future climates are simulated by general circulation models (GCM) using climate change scenarios (IPCC 2014). To project climate change for the sagebrush biome, we used 11 GCMs and two climate change scenarios from the IPCC Fifth Assessment, representative concentration pathways (RCPs) 4.5 and 8.5 (Moss et al. 2010, Van Vuuren et al. 2011). RCP4.5 scenario represents a future where climate policies limit and achieve stabilization of greenhouse gas concentrations to 4.5 W m-2 by 2100. RCP8.5 scenario might be called a business-as-usual scenario, where high emissions of greenhouse gases continue in the absence of climate change policies. The two selected time frames allow comparison of near-term (2020-2050) and longer-term...
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Hydrologic processes during extreme rainfall events are poorly characterized because of the rarity of measurements. Improved understanding of hydrologic controls on natural hazards is needed because of the potential for substantial risk during extreme precipitation events. We present field measurements of the degree of soil saturation and estimates of available soil-water storage during the September 2013 Colorado extreme rainfall event at burned (wildfire in 2010) and unburned hillslopes with north- and south-facing slope aspects. Soil saturation was more strongly correlated with slope aspect than with recent fire history; south-facing hillslopes became fully saturated while north-facing hillslopes did not. Our...
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This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of South Dakota. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of South Dakota. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of...
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(Hyperlink to Official Landing Page for Geospatial Fabric products)
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(Hyperlink to Official Landing Page for Geospatial Fabric products)
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The Nurek cluster is named for the Nurek Dam and Reservoir along the Vakhsh River in Tajikistan. The cluster includes several earthquakes in the low-5 magnitude range. Most of the seismicity appears to be associated with the reservoir and some of the seismicity may have been induced by the filling of the reservoir. It is notable that the the period 1999-2010 produced no earthquakes large enough to be included in the cluster. Number of events: 43 Calibration type: direct calibration using data to 1.2 degrees; hypocentroid calibration level = 1.2 km Epicentral calibration range: 2 - 5 km Date...
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Five principal components are used to represent the climate variation in an original set of 12 composite climate variables reflecting complex precipitation and temperature gradients. The dataset provides coverage for future climate (defined as the 2040-2070 normal period) under the RCP4.5 emission scenarios. Climate variables were chosen based on their known influence on local adaptation in plants, and include: mean annual temperature, summer maximum temperature, winter minimum temperature, annual temperature range, temperature seasonality (coefficient of variation in monthly average temperatures), mean annual precipitation, winter precipitation, summer precipitation, proportion of summer precipitation, precipitation...
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This collection primarily contains economic geologic information on mines in Mohave County, but also includes more general files on other states and mineral commodities. William Crutchfield, Jr. earned his master's degree from The University of California in 1953. He began working for Santa Fe Mining, Inc. in California in the 1960s as a Mining Engineer and later as Exploration Manager. He stayed with the company until the 1980s.
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Guy Atlee lived and worked in the Kingman area working the Turquoise mine (Mineral Park) and other mines near Chloride (IXL, Wrigley), Cerbat, and Kingman. He is known to have worked and traveled in the Victorville, Topock and other areas of California. Guy’s wife was Rose Atlee and they had a large family. The collection includes images of mines and workings as well as many images depicting daily life in Mohave County. The photos appear to cover a period from about the turn of the century through the 1920s.
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This data set consist of digital data describing (ACEC) Areas of Critical and Environmental Concern for Public Lands in the State of Colorado. ACECs are designated by decisions made during BLM Resource Management Planning. Existing ACECs have a Resouce value tied to them. An example of these resources would be: Threatened and Endangered Plants. Other areas of concern have also been captured within this theme. When the users opens up the attribute table for this theme the user will notice ACEC follows most of names for each area. Some BLM field offices also included RNAs and ONAs with in their layer. ONAs are... Outstanding Natural Areas and RNAs are... Research Natural Area The data set was compiled from the most...
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Project Synopsis: the Ferris Mountain project area consists of mainly timbered slopes, interspersed with upland areas dominated by sagebrush, grass, and mountain shrub communities. Timber stands within the project unit consist of Douglas fir, subalpine fir, spruce, lodgepole pine, limber pine, and aspen, in addition to scattered locations of Rocky Mountain juniper. Long-term suppression of wildfires has promoted the encroachment of conifers into shrublands, aspen stands, and drainages supporting aspen, waterbirch and willows, to the point where many of these communities are non-functional. Decadence and disease is commonly observed in terms of mistletoe, blister rust, and bleeding rust, and pine beetles have...
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One of the greatest challenges facing the Wyoming Game and Fish Department (WGFD) in the 21st century will be our ability to maintain sustainable fish and wildlife populations and meet the expectations and desire of our citizens. We approach habitat conservation and management on a landscape/watershed scale based on the needs of all fish and wildlife and citizens who either enjoy and/or depend on wildlife, and the land and water resources of the State. This requires a great deal of teamwork and a broader view of our responsibilities. Addressing habitat needs and issues that seek to maintain open spaces, non-fragmented, quality habitats and the ability of fish and wildlife to utilize these areas provides an opportunity...
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The collection of hand samples was obtained from projects of the Massachusetts Water Resource Authority (MWRA) related to the construction of water and sewer lines, throughout mainly the eastern part of the state. The collection consists of 525 hand samples from which thin sections (525) were made; in addition, there are 21 boxes containing approximately 2 pound, hand samples from work on the Cosgrove Tunnel Project. The samples were collected by Father James Skehan and each chunk of rock has an identifier painted on it, referring to the station location. The thin sections and the hand samples are stored in cardboard boxes, on pallets, at the Record Center, on Deer Island in Boston Harbor. The condition of the collection...
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General Paleontological samples, most are not cataloged. Consists of approximately 150,000 samples in total, most arranged by time period: Cambrian (1500), Ordovician (15,000), Silurian (17,000), Devonian (10,000), Mississippian (15,000), Pennsylvanian (77,000), and Tertiary/Cretaceous (100). Approximately 10,500 specimens are arranged by taxonomic group including brachiopods (7500), cephalopods (1000), and trilobites (2000).