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This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset represents data collected at 150 quadrat locations (points) within 12 selected cedar glades and contains quantitative characterizations of the ground surface, measurements of depth to bedrock (soil depth), and calculations of canopy coverage based on digital photography. When combined with the hydrologic and soil chemical and microbiological datasets described in the summary section, this information can be used to evaluate relationships between abiotic stressors (such as extreme hydrologic conditions, extreme temperatures, or thin soils) and soil microbial indicators....
U.S. States (Generalized) represents the fifty states and the District of Columbia of the United States. The Northwest Climate Science Center (NW CSC) Science Agenda outlines the overall science direction for the NW CSC in 2012-2016. It forms an integral part of the NW CSC Strategic Plan for 2012-2016 and was developed with input from cultural and natural resource managers in the Northwest. The Science Agenda guides the NW CSC and its Executive Stakeholder Advisory Committee ( ESAC) in the identification of annual and long-term research priorities to be funded by the NW CSC.
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The U.S. Geological Survey (USGS) is providing an online map of potentiometric-surface altitude contours in the Magothy and Jameco aquifers on Long Island, New York, April-May 2013. USGS serves this map and geospatial data as a REST Open Map Service (as well as HTTP, JSON, KML, and shapefile), so end-users can use the map and data on mobile and web clients. A companion report, U.S. Geological Survey Scientific Investigations Map 3326 (Como and others, 2015; http://dx.doi.org/10.3133/sim3326) further describes data collection and map preparation and presents 68x22 in. PDF versions, 4 sheets, scale 1:125,000. This polyline shapefile consists of digital contours that represent the potentiometric-surface...
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Separate data for floodplain elevation and bathymetry were collected on the Upper Mississippi River System (UMRS) by the US Army Corps of Engineers (USACE), Upper Mississippi River Restoration (UMRR) program. While many information needs can be met by using these data separately, in many cases seamless elevation data across the river and its floodplain are needed. This seamless elevation surface was generated by merging lidar (i.e., floodplain elevation) and bathymetry data. Merging the data required special processing in the areas of transition between the two sources of data.
Riparian ecosystems are vital components of aridlands within the southwestern United States. Historically, surface flows influenced population dynamics of native riparian trees. Many southwestern streams has been altered by regulation, however, and will be further affected by greenhouse warming. Our analysis of stream gage data revealed that decreases in volume of annual discharge and mean peak discharge and a shift to earlier peak discharge will occur in the Southern Rockies region of Colorado, New Mexico, and Utah. These changes will likely decrease rates of reproduction and survival of cottonwood (Populus fremontii and Populus deltoides ssp. wislizenii), Goodding’s willow (Salix gooddingii), and boxelder (Acer...
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This dataset compiles land ownership and management data from state and federal agencies to create a map showing ownership, management, and conservation status of all land in Alaska. State, federal, and private lands, including Native corporations and Native allotments, are included. Conservation status describes the degree to which land, particularly public land, is legally designated and explicitly managed for biodiversity conservation. The most common classification, developed by the USGS GAP Program (www.gap.uidaho.edu), classifies land management types into four conservation status categories according to the degree to which the land is explicitly managed for conservation. In general, conservation status 1...
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Landforms along the Pacific, Gulf of Mexico, and Atlantic coastlines for the conterminous United States are attributed with the relative vulnerability of horizontal erosion due to sea-level rise to characterize coastal zone stability. The position and extent of landforms are geospatially indexed as line-events where these coastal zone features are intersected by the linear-referenced 2013 - 2014 U.S. Geological Survey National Hydrography Dataset Coastline, which corresponds to the National Oceanic and Atmospheric Administration (NOAA) 2013 - 2014 mean high water level datum delineated in intertidal zones open to oceans, behind barrier coasts in bays, lagoons, and estuaries, and sometimes where tidal currents reach...
To facilitate camera-based snow depth observations without additional equipment installation, we developed a novel method implemented in an R package called edger to superimpose virtual measurement devices onto images. The virtual snow stakes can be used to derive snow depth measurements. We validated the method for snow depth estimation using camera data from Latah County, Idaho, USA in winter 2020–2021. Physical snow stakes were installed in the camera viewshed with which snow depth measurements were taken. Then, virtual snow stakes were superimposed on the images using edger and images were cropped to exclude the physical snow stake so that the two snow depth measurements could be compared. This dataset contains...
Modeled soil moisture raster maps (4km-pixels) displaying volumetric water content (VWC) and fraction of available water (FAW) in 10-cm depth increments for the 2015-2019 period for the Red River and Rio Grande basins.
A nested sampling network on the Colorado (CR) and Missouri Rivers (MR) provided data to assess impacts of large-scale reservoir systems and climate on carbon export. The Load Estimator (LOADEST) model was used to estimate both dissolved inorganic and organic carbon (DIC and DOC) fluxes for a total of 22 sites along the main stems of the CR and MR. Both the upper CR and MR DIC and DOC fluxes increased longitudinally, but the lower CR fluxes decreased while the lower MRs continued to increase. We examined multiple factors through space and time that help explain these flux patterns. Seasonal variability in precipitation and temperature, along with site-level concentration versus discharge relationships proved to...
Climate change and the concurrent change in wildfire events and land use comprehensively affect carbon dynamics in both spatial and temporal dimensions. The purpose of this study was to project the spatial and temporal aspects of carbon storage in the Greater Yellowstone Ecosystem (GYE) under these changes from 2006 to 2050. We selected three emission scenarios and produced simulations with the CENTURY model using three General Circulation Models (GCMs) for each scenario. We also incorporated projected land use change and fire occurrence into the carbon accounting.
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This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset represents interpolated estimates of precipitation (in decimal inches) for 120 quadrat locations (points) within 12 selected cedar glades, for a period of time from 6 days (144 hours) prior to the field visit day up until 3 days (72 hours) prior to the field visit day. At each field visit, precipitation data was collected at four rain gauges installed at STRI. Rain gauge measurements were obtained on the following dates (which correspond to 3 days prior to the fields in the dataset): February 3, 2012; March 2, 2012; March 30, 2012; April 20, 2012; May 22, 2012;...
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This dataset represents data collected at 120 quadrat locations (points) within 12 selected cedar glades and contains measurements of relative humidity (percent) at the ground surface for each point. Measurements were obtained on the following dates (which correspond to the fields in the dataset): February 6, 2012; March 5, 2012; April 2, 2012; April 23, 2012; May 25, 2012; June 21, 2012; July 19, 2012; August 23, 2012; September 27, 2012; November 5, 2012; December 17, 2012; January 21,2013; February 18, 2013; March 19, 2013; April 15, 2013; and May 13, 2013. Points classified into four groups (identified by the field "Group") and were visited on a rotating sampling schedule, such that each group of points was...
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This dataset represents data collected at 120 quadrat locations (points) within 12 selected cedar glades and contains measurements of soil temperature (at 4 centimeters depth) for each point. Measurements were obtained on the following dates (which correspond to the fields in the dataset): February 6t, 2012; March 5, 2012; April 2, 2012; April 23, 2012; May 25, 2012; June 21, 2012; July 19, 2012; August 23, 2012; September 27, 2012; November 5, 2012; December 17, 2012; January 21, 2013; February 18, 2013; March 19, 2013; April 15, 2013; and May 13, 2013. Points were classified into four groups (identified by the field "Group") and were visited on a rotating sampling schedule, such that each group of points was visited...
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This dataset contains data collected within limestone cedar glades at Stones River National Battlefield (STRI) near Murfreesboro, Tennessee. This dataset contains measurements of volumetric soil water content at certain quadrat locations (points) within 12 selected cedar glades. All soil water content measurements in this file were obtained using a portable time-domain reflectometry (TDR) unit (FieldScout TDR 300 Soil Moisture Meter; Spectrum Technologies, Inc., Plainfield, IL, USA) that was fitted with the shortest probe length, 3.8 centimeters (cm). Six measurements were obtained per quadrat, and the values present in the fields of this dataset represent the means of these six measurements. In some cases, equipment...
The distribution of permafrost is important to understand because of permafrost's influence on high-latitude ecosystem structure and functions. Moreover, near-surface (defined here as within 1 m of the Earth's surface) permafrost is particularly susceptible to a warming climate and is generally poorly mapped at regional scales. Subsequently, our objectives were to (1) develop the first-known binary and probabilistic maps of near-surface permafrost distributions at a 30 m resolution in the Alaskan Yukon River Basin by employing decision tree models, field measurements, and remotely sensed and mapped biophysical data; (2) evaluate the relative contribution of 39 biophysical variables used in the models; and (3) assess...
The purpose of this study was to determine the history of paleosalinity over the past 6000+ years in the Sacramento-San Joaquin Delta (the Delta), which is the innermost part of the San Francisco Estuary. We used a combination of Sr and U concentrations, δ87Sr values, and 234U/238U activity ratios (AR) in peat as proxies for tracking paleosalinity. Peat cores were collected in marshes on Browns Island, Franks Wetland, and Bacon Channel Island in the Delta. Cores were dated using 137Cs, the onset of Pb and Hg contamination from hydraulic gold mining, and 14C. A proof of concept study showed that the dominant emergent macrophyte and major component of peat in the Delta, Schoenoplectus spp., incorporates Sr and U and...
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Emerging applications of ecosystem resilience and resistance concepts in sagebrush ecosystems allow managers to better predict and mitigate impacts of wildfire and invasive annual grasses. Soil temperature and moisture strongly influence the kind and amount of vegetation, and consequently, are closely tied to sagebrush ecosystem resilience and resistance (Chambers et al. 2014). Soil taxonomic temperature and moisture regimes can be used as indicators of resilience and resistance at landscape scales to depict environmental gradients in sagebrush ecosystems that range from cold/cool-moist sites to warm-dry sites. We aggregated soil survey spatial and tabular data to facilitate broad-scale analyses of resilience and...
Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Colorado, EARTH SCIENCE > LAND SURFACE > LANDSCAPE, Greater sage-grouse, Greater sage-grouse, All tags...
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The ascii grids represent regional probabilities that groundwater in a particular location will have dissolved oxygen (DO) concentrations less than selected threshold values representing anoxic groundwater conditions or will have dissolved manganese (Mn) concentrations greater than selected threshold values representing secondary drinking water-quality contaminant levels (SMCL) and health-based screening levels (HBSL) for water quality. The probability models were constrained by the alluvial boundary of the Central Valley to a depth of approximately 300 meters (m). We utilized prediction modeling methods, specifically boosted regression trees (BRT) with a Bernoulli error distribution within a statistical learning...
map background search result map search result map Journal Article: Soil Temperature and Moisture Regimes across Sage-Grouse Range NHD Swamp/Marsh for the Great Plains Landscape Conservation Cooperative (COPY) Ground-surface characterization data for 150 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Interpolated precipitation data (first interval) for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Relative humidity data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil temperature at 4 centimeters depth for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Volumetric soil water content data measured by time-domain reflectometry for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee UMRR Pool 08 Topobathy Potentiometric Surface Contours of the Magothy and Jameco Aquifers, April-May 2013 Management and Conservation Stewardship of Alaska Lands, 2006, The Nature Conservancy Linear-referenced Geomorphology and Relative Vulnerability to Erosion at the 2013 – 2014 conterminous U.S. Atlantic Ocean National Hydrography Dataset Coastline Probability distribution grids of dissolved oxygen and dissolved manganese concentrations at selected thresholds in drinking water depth zones, Central Valley, California Soil Moisture Data for the Red River and Rio Grande Basins from 2015-2019 Validation of the "edger" Virtual Snow Stake Ground-surface characterization data for 150 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Interpolated precipitation data (first interval) for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Relative humidity data for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Soil temperature at 4 centimeters depth for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Volumetric soil water content data measured by time-domain reflectometry for 120 point locations within limestone cedar glades at Stones River National Battlefield near Murfreesboro, Tennessee Validation of the "edger" Virtual Snow Stake UMRR Pool 08 Topobathy Potentiometric Surface Contours of the Magothy and Jameco Aquifers, April-May 2013 Probability distribution grids of dissolved oxygen and dissolved manganese concentrations at selected thresholds in drinking water depth zones, Central Valley, California Soil Moisture Data for the Red River and Rio Grande Basins from 2015-2019 NHD Swamp/Marsh for the Great Plains Landscape Conservation Cooperative (COPY) Journal Article: Soil Temperature and Moisture Regimes across Sage-Grouse Range Linear-referenced Geomorphology and Relative Vulnerability to Erosion at the 2013 – 2014 conterminous U.S. Atlantic Ocean National Hydrography Dataset Coastline Management and Conservation Stewardship of Alaska Lands, 2006, The Nature Conservancy