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Location Folder Show Tree ROOT _ScienceBase Catalog 3DSC Alaska Science Center (ASC) Alkalic Igneous Centers of the Great Plains and Rocky Mountains: Data in Support of Critical Mineral Resource Studies AMMonitor: Remote wildlife monitoring for adaptive management Amphibian Research and Monitoring Initiative More... Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (1) Types Citation (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Geosciences and Environmental Change Science Center Robert S Thompson U.S. Geological Survey U.S. Geological Survey - ScienceBase Ecosystems More... Categories Data (4) Publication (1) Tag Types USGS Scientific Topic Keyword (4) Theme (1) Harvest Set (4) Place (1) Label (1) Tag Schemes None (1) https://www.sciencebase.gov/vocab/category/NCCWSC/Project/OrganizationName (1) View Results as: JSON ATOM CSV Browse Folder

A gridded database of the modern distributions of climate, woody plant taxa, and ecoregions for the continental United States and Canada On the continental scale, climate is an important determinant of the distributions of plant taxa and ecoregions. To quantify and depict the relations between specific climate variables and these distributions, we placed modern climate and plant taxa distribution data on an approximately 25-kilometer (km) equal-area grid with 27,984 points that cover Canada and the continental United States (Thompson and others, 2015). The gridded climatic data include annual and monthly temperature and precipitation, as well as bioclimatic variables (growing degree days, mean temperatures of the coldest and warmest months, and a moisture index) based on 1961-1990 30-year mean values from the University of East Anglia (UK) Climatic... Categories: Data; Tags: Botany, Climatology, Geography, USGS Science Data Catalog (SDC) USGS North American Packrat Midden Database, Version 5.0 This data release contains the data tables for the USGS North American Packrat Midden Database (version 5.0). This version of the Midden Database contains data for 3,331 packrat midden samples obtained from published sources (journal articles, book chapters, theses, dissertations, government and private industry reports, conference proceedings) as well as unpublished data contributed by researchers. Compared to the previous version of the Midden Database (i.e., ver. 4), this version of the database (ver. 5.0) has been expanded to include more precise midden-sample site location data, calibrated midden-sample age data, and plant functional type (PFT) assignments for the taxa in each midden sample. In addition,... Categories: Data; Tags: Botany, Climatology, Ecology, USGS Science Data Catalog (SDC) Projected Future Vegetation Changes for the Northwest United States and Southwest Canada at a Fine Spatial Resolution Using a Dynamic Global Vegetation Model Abstract (from http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138759): Future climate change may significantly alter the distributions of many plant taxa. The effects of climate change may be particularly large in mountainous regions where climate can vary significantly with elevation. Understanding potential future vegetation changes in these regions requires methods that can resolve vegetation responses to climate change at fine spatial resolutions. We used LPJ, a dynamic global vegetation model, to assess potential future vegetation changes for a large topographically complex area of the northwest United States and southwest Canada (38.0–58.0°N latitude by 136.6–103.0°W longitude). LPJ is a... Categories: Publication; Types: Citation; Tags: National CASC, Pacific Northwest, dynamic global vegetation model, vulnerability Data release for Assessing the Uncertainties in Climatic Estimates Based on Vegetation Assemblages: Examples from Modern Vegetation Assemblages in the American Southwest This data release includes climatic variables and associated descriptive material created for the purpose of assessing uncertainties associated with climatic estimates based on vegetation assemblages (Thompson and others, 2021). The data are from the interior of the western United States, including all of Arizona, and portions of California, Colorado, Nevada, New Mexico, Texas, and Utah. The data are observed, interpolated, and estimated values for the mean temperature of the coldest month (MTCO, degrees C), mean temperature of the warmest month (MTWA, degrees C), and mean annual total precipitation (MAP, mm). Categories: Data; Tags: Data analysis, Holocene, North America, Packrat middens, Paleobotany, All tags... Paleoclimatology, Plant macrofossils, Present, USGS Science Data Catalog (SDC), Fewer tags Data Release for Holocene Paleohydrology from alpine lake sediment, Emerald Lake, Wasatch Plateau of central Utah, USA Holocene sediments at Emerald Lake in central Utah (3090 m a.s.l), document the paleohydroclimatic history of the western Upper Colorado River headwater region. Multi-proxy analyses of sediment composition, mineralogy, and stable isotopes of carbonate (d18O and d13C) show changes in effective moisture for the past ca. 10,000 years at millennial to decadal timescales. Emerald Lake originated as a shallow closed-basin cirque pond during the early Holocene. By ca. 7000 cal yr BP, higher lake levels and carbonate d18O values indicate rising effective moisture and higher proportions of summer precipitation continued at least until ca. 5500 cal yr BP when a landslide entered the lake margin. Between ca. 4500 and 2400... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, Geomorphology, Great Basin, Holocene, Hydrology, All tags... Limnology, Sedimentology, USGS Science Data Catalog (SDC), Upper Colorado, Utah, Wasatch Plateau, high elevation lake, lake level, late Holocene dry period, oxygen isotopes, paleoclimatology, paleohydrology, Fewer tags