Filters: Tags: {"scheme":"NASA Global Change Master Directory"} (X) > partyWithName: U.S. Geological Survey (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (4) OGC WFS Layer (4) OGC WMS Layer (4) OGC WMS Service (4) Citation (2) Contacts Laurel W Gutenberg U.S. Geological Survey - ScienceBase Rachel Sleeter Erin M Berryman Land Resources More... Categories Data (5) Tag Types Theme (31) Tags (with Scheme=NASA Global Change Master Directory) biogeochemical cycles (2) carbon (2) peatlands (2) soil (2) soil moisture/water content (2) terrestrial ecosystems (2) air pollution (1) More... View Results as: JSON ATOM CSV

Calculated back trajectory coordinates for air masses contributing to five selected precipitation-mercury deposition episodes at a National Atmospheric Deposition Program monitoring site in southeastern Indiana during 2009 to 2015 This data release contains tabular digital data describing calculated hourly back trajectory position coordinates for air masses contributing to five selected precipitation-mercury deposition episodes at National Atmospheric Deposition Program monitoring site IN21 (National Atmospheric Deposition Program, 2017) in southeastern Indiana during 2009‒2015. The air pollution transport and dispersion modeling system HYSPLIT (Stein et. al, 2015) was used to calculate the back trajectory position coordinates during 48 hours preceding the start of each episode. The 40-km gridded input data to HYSPLIT were from National Oceanic and Atmospheric Administration (2017). Continuous, digital precipitation depth data were recorded... Categories: Data; Tags: Indiana, USGS Science Data Catalog (SDC), air pollution, atmospheric deposition, dispersion model, All tags... precipitation, transport model, Fewer tags Soil flux (CO2, CH4), soil temperature, and soil moisture measurements at the Great Dismal Swamp National Wildlife Refuge (2015 - 2017) We identified nine study site locations, representing three mature vegetation communities [Atlantic White Cedar (desired community), tall pine pocosin (desired community), and red maple/black gum mixed (undesired community)] with typical water depth within each vegetation type. All measurements were replicated three times (3 vegetation types x 3 replicates = 9 sites total). We installed four flux chambers at each site to collect GHG fluxes from all nine sites. We measured CO2 and CH4 using a Los Gatos Research Ultra Portable Greenhouse Gas Analyzer and two-part 760 cm2 flux chambers (chamber base remained in situ; chamber top was placed on the bottom only when sampling). We checked the gas fluxes on a monthly time-table... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, Geochemistry, Great Dismal Swamp National Wildlife Refuge, Land Use Change, Soil Sciences, All tags... USGS Science Data Catalog (SDC), biogeochemical cycles, carbon, peatlands, soil, soil moisture/water content, terrestrial ecosystems, Fewer tags USGS Gap Analysis Project - Additional Data – National Gap Land Cover Ver 1.0 (2001) The Land Cover Data - Version 1.0 represents a highly thematically detailed land cover map of the U.S. The map legend includes types described by NatureServe's Ecological Systems Classification (Comer et al. 2002) as well as land use classes described in the National Land Cover Dataset 2001 (Homer et al. 2007). This version of the land cover data was used to support the Gap Analysis Project's vertebrate species modeling efforts. These data cover the entire continental U.S. and are a continuous data layer. These raster data have a 30 m x 30 m cell resolution. This land cover data set is considered official foundational data for the GAP species modeling process. The data have been made available provisionally to enhance... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Biodiversity, Conservation, Cover, Habitat, Habitats, All tags... Land Cover, Land Use, United States, Fewer tags Vertical snowpack CO2 profile measurements from 2010-2016 in a subalpine forest in southern Wyoming Hourly carbon dioxide (CO2) measurements from four locations of snowpack profiles with vertical spacing of 20 cm over seven winters (2010-2016) at the Glacier Lakes Ecosystem Experiments Site (GLEES) in southern Wyoming. All supporting data on snowpack properties (mostly modeled) are included to calculate hourly snowpack CO2 fluxes from raw data. In addition, turbulence from the adjacent AmeriFlux eddy covariance scaffold are included for statistical analyses. For comparison purposes, manual CO2 measurements collected at the site from 1998-1999 and 2004-2010 are also included. In addition to data, all scripts are provided to calculate fluxes and determine statistical effects of year, replicate and turbulence on... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geochemistry, Medicine Bow National Forest, USGS Science Data Catalog (SDC), Volcanology, Wyoming, All tags... carbon dioxide, ecosystem functions, forests, snow density, snow depth, snow energy balance, snowpack average temperature, soil respiration, Fewer tags PRISM late Pliocene (Piacenzian) alkenone - derived SST data This dataset collects sea surface temperature data generated through alkenone analysis of late Pliocene sediments collected from cores and field localities by USGS PRISM project members. Alkenone analysis of sample material was performed by Timothy Herbert at Brown University. Categories: Data; Tags: Alkenone, Arctic Ocean, Atlantic Ocean, Climatology, Greenland Sea, All tags... Nansemond River, Ocean records, Pacific Ocean, Paleoclimate, Sea Surface Temperature Reconstruction, South China sea, Suffolk, USGS Science Data Catalog (SDC), United States, Virginia, Fewer tags Soil flux (CO2, CH4), soil temperature, and soil moisture measurements at the Great Dismal Swamp National Wildlife Refuge (2015 - 2017) We identified nine study site locations, representing three mature vegetation communities [Atlantic White Cedar (desired community), tall pine pocosin (desired community), and red maple/black gum mixed (undesired community)] with typical water depth within each vegetation type. All measurements were replicated three times (3 vegetation types x 3 replicates = 9 sites total). We installed four flux chambers at each site to collect GHG fluxes from all nine sites. We measured CO2 and CH4 using a Los Gatos Research Ultra Portable Greenhouse Gas Analyzer and two-part 760 cm2 flux chambers (chamber base remained in situ; chamber top was placed on the bottom only when sampling). We checked the gas fluxes on a monthly time-table... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, Geochemistry, Great Dismal Swamp National Wildlife Refuge, Land Use Change, Soil Sciences, All tags... USGS Science Data Catalog (SDC), biogeochemical cycles, carbon, peatlands, soil, soil moisture/water content, terrestrial ecosystems, Fewer tags