Filters: Tags: droughts (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: U.S. Geological Survey - ScienceBase (X)

Filters Date Range Past year (14) Past month (3) Past week (1) Past day (0) Custom range... To   Search Extensions Raster (1) Types Map Service (2) Collection (1) Downloadable (1) GeoTIFF (1) OGC WFS Layer (1) More... Contacts Ecosystems John B Bradford Southwest Biological Science Center Beth A Middleton Water Resources More... Categories Data (24) Data Release - Under Revision (1) Tag Types Theme (36) Place (36) USGS Scientific Topic Keyword (30) Harvest Set (34) Tag Schemes None (30) USGS Thesaurus (36) Geographic Names Information System (GNIS) (16) USGS Biocomplexity Thesaurus (6) Common geographic areas (12) ISO 19115 Topic Category (18) ISO 19115 Topic Categories (13) More... View Results as: JSON ATOM CSV

Historical and 21st century soil temperature and moisture data for drylands of western U.S. and Canada These data represent simulated soil temperature and moisture conditions for current climate, and for future climate represented by all available climate models at two time periods during the 21st century. These data were used to: 1) quantify the direction and magnitude of expected changes in several measures of soil temperature and soil moisture, including the key variables used to distinguish the regimes used in the R and R categories; 2) assess how these changes will impact the geographic distribution of soil temperature and moisture regimes; and 3) explore the implications for using R and R categories for estimating future ecosystem resilience and resistance. Tags: Alberta, Arizona, British Columbia, California, Canada, All tags... Climatology, Colorado, Ecology, Geography, Idaho, Information Sciences, Kansas, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Saskatchewan, Soil Sciences, South Dakota, Texas, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, aridification, aridity, big sagebrush ecosystems, biota, cheatgrass, clay loam, climate, climate change, climate models, concentration pathways, drought resistance, droughts, ecological model, ecological transformation, ecosystem resilience, future time periods, historical conditions, resilience, sandy loam, silt loam, soil temperature, soil types, vulnerability, Fewer tags Plant composition, shrub biomass, and soil biogeochemistry from an experimental drought treatment on the Colorado Plateau These data were compiled for a study that investigated the effects of drought seasonality and plant community composition in a dryland ecosystem. In 2015 U.S. Geological Survey ecologists recorded vegetation and soil moisture data in 36 experimental plots which manipulated precipitation in two plant community types. The experiment consisted of three precipitation treatments: control (ambient precipitation), cool-season drought (-66% ambient precipitation November-April), and warm-season drought (-66% ambient precipitation May-October), applied in two plant communities (perennial grasses with or without a large shrub, Ephedra viridis) over a three-year period. These data were collected from 2015 to 2022 near Canyonlands... Categories: Data; Tags: Achnatherum hymenoides, Botany, C3 photosynthesis, C4 photosynthesis, Canyonlands National Park, All tags... Climatology, Colorado Plateau, Ecology, Ephedra viridis, Geography, Indian ricegrass, Information Sciences, Islands of Fertility, James' galleta, Needles District, Pleuraphis jamesii, Soil Sciences, USGS Science Data Catalog (SDC), USGS:6553a618d34ee4b6e05c3e2b, Utah, ambient precipitation, biogeochemical cycling, biogeochemical data, biogeochemistry, biomass, biota, carbon, carbon concentrations, control treatments, cool-season drought treatments, data release, drought seasonality, droughts, dryland ecosystems, ecosystems, experimental plots, experimental seasonal drought, field inventory and monitoring, field measurements, field sampling, geoscientificInformation, interspace cover estimates, mormon tea, nitrogen, nitrogen concentrations, percent cover estimates, perennial grasses, phosphorus, phosphorus concentrations, photosynthesis, plant community composition, plants (organisms), precipitation (atmospheric), precipitation treatments, shrubland ecosystems, soil cores, soil moisture, soil sciences, soil volumetric water content, southeastern Utah, vegetation, warm-season drought treatments, Fewer tags High-resolution maps of historical and 21st century soil temperature and moisture data using multivariate matching algorithms for drylands of western U.S. and Canada These data were compiled as a supplement to a previously published journal article (Bradford et al., 2019), that employed a ecosystem water balance model to characterize current and future patterns in soil temperature and moisture conditions in dryland areas of western North America. Also, these data are associated with a published USGS data release (Bradford and Schlaepfer, 2019). The objectives of our study were to (1) characterize current and future patterns in soil temperature and moisture conditions in dryland areas of western North America, (2) evaluate the impact of these changes on estimation of resilience and resistance among a representative set of climate scenarios. These data represent geographic patterns... Tags: Alberta, Arizona, Botany, British Columbia, California, All tags... Climatology, Cnada, Colorado, Ecology, Geography, Idaho, Information Sciences, Iowa, Kansas, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, RCP4.5, RCP8.5, SOILWAT2, Saskatchewan, Texas, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, aridification, aridity, big sagebrush ecosystems, biota, cheatgrass, clay loam, climate, climate change, climate models, climatologyMeteorologyAtmosphere, concentration pathways, data release, droughts, ecological model, ecological transformation, future time periods, global circulation models, historical conditions, resilience, sandy loam, silt loam, soil temperature, soil types, western North America, Fewer tags Rainbow trout growth data and growth covariate data from Glen Canyon, Colorado River, Arizona, 2012-2021 These data are the primary data used to model rainbow trout growth in Glen Canyon. Fish growth data were collected from nighttime boat electrofishing field campaigns conducted five to six times per year in April, July, September, and January, from April 2012 through November 2021 for a total of 9798 observations of mark-recapture-based growth. Sampling was conducted in a five km reach in the lower portion of the Glen Canyon tailwater (3.7-8.9 km upstream of Lees Ferry, AZ). Two nights of sampling occurred on each trip, with the central 2-3 km of the reach sampled on both nights. After capture, fish were kept in aerated 40-L buckets and transported to a central processing location. Groups of 10-15 fish were anesthetized... Categories: Data; Tags: Aquatic Biology, Arizona, Colorado River, Ecology, Geography, All tags... Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Information Sciences, Lees Ferry, USGS Science Data Catalog (SDC), Upper Colorado River, Water Resources, Wildlife Biology, animal tracking, biomass, biota, controlled flooding, data release, droughts, electrofishing, experimental flow, field inventory and monitoring, field sampling, fish, fish growth, fish weight, fork length, hydropeaking, inlandWaters, mark-recapture, phosphorus, rainbow trout, river reaches, streamflow, tailwater, water quality, water temperature, Fewer tags Regeneration trends along climate gradients in Taxodium distichum forest of the southeastern United States, 2007-2019 Data provided are the volumes of cypress cones, collected in the North American Baldcypress Swamp Network along the Mississippi River Alluvial Valley (southern Illinois to southern Louisiana, and Gulf of Mexico, east Texas to west Florida Panhandle, 2007 - 2019. Categories: Data; Tags: Aquatic Biology, Arkansas, Botany, Botany, Ecology, All tags... Ecology, Environmental Health, Environmental Health, Florida, Forestry, Forestry, Geography, Geography, Hydrology, Hydrology, Illinois, Land Use Change, Land Use Change, Louisiana, Mississippi, Tennessee, Texas, USGS Science Data Catalog (SDC), United States, Water Quality, Water Quality, biota, droughts, effects of climate change, forest ecosystems, hydrologic alteration, hydrology, land use change, regeneration, seed, water over usage, Fewer tags Robust ecological drought projection data for drylands in the 21st century These data represent simulated ecological drought conditions for current climate, and for future climate represented by all available climate models at two time periods during the 21st century. These data were used to: 1) describe geographic patterns in ecological drought under historical climate conditions, 2) quantify the direction and magnitude of change in ecological drought, 3) identify areas and ecological drought metrics with projected changes that are robust across climate models, defined as drought metrics and locations where >90% of climate models agree in the direction of change. Tags: Alberta, Arizona, British Columbia, California, Canada, All tags... Climatology, Colorado, Ecology, Geography, Idaho, Information Sciences, Kansas, Manitoba, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Saskatchewan, Soil Sciences, South Dakota, Texas, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, air temperature, biota, climate, climate change, climate conditions, climate impacts, climatologyMeteorologyAtmosphere, drought conditions, drought metrics, drought stress, droughts, dryland ecosystems, dryland vegetation, ecological drought, effects of climate change, future climate, future conditions, high temperature, historical conditions (1980-2010), plants, seasonal droughts, soil moisture, vegetation, Fewer tags Streamflow Drought Metrics for Select United States Geological Survey Streamgages for Three Different Time Periods from 1921 - 2020 This metadata record describes a series of datasets containing metrics used to characterize drought for four sets of United States Geological Survey (USGS) streamgages in the conterminous United States (CONUS) for three different time periods between 1921 and 2020 outlined below. The streamgages used are a subset based on the criteria used in Geospatial Attributes of Gages for Evaluating Streamflow, version II (GAGESII, Falcone, 2011). Time periods use climate years, April 1 through March 31. These metrics include streamflow percentiles, identified drought events, annual low streamflow drought statistics, and various attributes for each of those events. These data are arranged here by study group with the following... Categories: Data; Tags: CONUS, Hydrology, USGS Science Data Catalog (SDC), droughts, hydrology, All tags... inlandWaters, streamflow, Fewer tags Long-term monotonic trends in annual and monthly streamflow metrics at streamgages in the United States (Under Revision) Note: this data release is currently being revised and is temporarily unavailable The U.S. Geological Survey (USGS) Water Resources Mission Area (WMA) is working to address a need to understand where the Nation is experiencing water shortages or surpluses relative to the demand for water need by delivering routine assessments of water supply and demand and an understanding of the natural and human factors affecting the balance between supply and demand. A key part of these national assessments is identifying long-term trends in water availability, including groundwater and surface water quantity, quality, and use. This data release contains Mann-Kendall monotonic trend analyses for 18 observed annual and monthly... Categories: Data, Data Release - Under Revision; Tags: Hydrology, United States, Water Resources, droughts, floods, All tags... hydrology, inlandWaters, streamflow, trends, Fewer tags Pinyon-juniper basal area, climate and demographics data from National Forest Inventory plots and projected under future density and climate conditions These data were compiled to help understand how climate change may impact dryland pinyon-juniper ecosystems in coming decades, and how resource management might be able to minimize those impacts. Objective(s) of our study were to model the demographic rates of PJ woodlands to estimate the areas that may decline in the future vs. those that will be stable. We quantified populations growth rates across broad geographic areas, and identified the relative roles of recruitment and mortality in driving potential future changes in population viability in 5 tree species that are major components of these dry forests. We used this demographic model to project pinyon-juniper population stability under future climate conditions,... Categories: Data; Tags: Arizona, Botany, California, Colorado, Ecology, All tags... Forestry, Geography, Idaho, Information Sciences, Juniperus monosperma, Juniperus osteosperma, Juniperus scopulorum, Montana, Nevada, New Mexico, North Dakota, Oregon, Pinus edulis, Pinus monophylla, Rocky Mountain juniper, South Dakota, Texas, USGS Science Data Catalog (SDC), United States Southwest, Utah, Utah juniper, biogeography, biota, climate change, climatologyMeteorologyAtmosphere, data release, droughts, dryland forests, ecosystem management, effects of climate change, field inventory and monitoring, forest ecosystems, forest inventory plot, forest management, mortality, oneseed juniper, pinyon-juniper forests, pinyon-juniper woodland, plot sampling, population and community ecology, population dynamics, population growth, recruitment, singleleaf pinyon, tree growth, tree mortality, tree recruitment, trees, twoneedle pinyon, vegetation, western United States, Fewer tags Modeling soil pore water salinity response to drought in tidal freshwater forested wetlands Model generated soil pore water salinity (psu) values under scenarios of drought and normal conditions at Tidal Freshwater Forested Wetlands (TFFW) sites along the Waccamaw River and Savannah River in the Southeastern United States. Categories: Data; Tags: Coastal environment, Droughts, Ecology, Evapotranspiration, Forested wetlands, All tags... Georgia, Hydrogeology, ISO 19115 Topic Category, Saline intrusion, Savannah River, Soil Sciences, Soil salinity, South Carolina, USA, USGS Science Data Catalog (SDC), Waccamaw River, Fewer tags Analysis of drought sensitivity in the Pacific Northwest (Washington, Oregon, and Idaho) from 2000 through 2016 This data release includes data-processing scripts, data products, and associated metadata for a remote-sensing based approach to characterize vegetation sensitivity to droughts from 2000 through 2016 in the U.S. states of Washington, Oregon, and Idaho. Drought sensitivity analysis was conducted in minimally-disturbed (‘intact’) forest and shrub-steppe ecosystems, defined as 1-km pixels (i.e., grid cells) that had not experienced major recent insect mortality or fire. Drought conditions were assessed using the multi-scalar standardized precipitation evapotranspiration index (SPEI), for which positive values indicate wetter that average conditions and negative values indicate drier than average conditions for a given... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Idaho, Oregon, USGS Science Data Catalog (SDC), Washington, droughts, All tags... forest ecosystems, shrubland ecosystems, Fewer tags Digital elevation models and water surface profiles for the Colorado River in Cataract Canyon, Canyonlands National Park and Glen Canyon National Recreation Area, Utah These data consist of measurements of riverbed and floodplain bathymetry and topography, measurements of water-surface elevations and ancillary data. These data are specific to the corridor of the Colorado River from the confluence of the Green and Colorado Rivers near Spanish Bottom, Utah in Canyonlands National Park to the confluence with the Dirty Devil River in Glen Canyon National Recreation Area. The time period for these data are 2020 and 2021. The raster data are digital elevation models (DEMs) for segments of the Colorado River in Canyonlands National Park, Utah and include both bathymetric and topographic data. The data collected in 2020 consist of bathymetric and topographic data for segments of the Colorado... Tags: Arizona, Canyonlands National Park, Cataract Canyon, Colorado River, Dirty Devil River, All tags... Ecology, Geography, Geomorphology, Glen Canyon National Recreation Area, Green River, Gypsum Canyon, Hydrology, Information Sciences, Lake Powell, Remote Sensing, Spanish Bottom, USGS Science Data Catalog (SDC), Utah, Water Resources, bathymetric data, bathymetry, bathymetry measurement, channel morphology, climate change, data release, digital elevation models, droughts, effects of climate change, effects of dams, elevation, floodplain, fluvial geomorphology, imageryBaseMapsEarthCover, lidar, longitudinal profiles, multibeam sonar, multibeam sonar, profiles, raster data, reservoirs, river channel change, river reaches, river systems, riverbed, streamflow, streamflow modeling, streamflow regulations, topographic data, topographic maps, topography, water-surface elevations, Fewer tags Data Release: Peat collapse and vegetation shift after storm-driven saltwater surge in a tidal freshwater swamp, tree height and density 2021 On November 11, 2021, the height, density, and species richness of trees were recorded in five plots along a 175 m transect at Hickory Point State Forest near Pocomoke City, Maryland. This data was divided into categories depending on if the tree was alive, dead, or a sapling. Emergent species' height, density, and richness was also recorded. Categories: Data; Tags: Botany, Chesapeake Bay, Ecology, Forested Wetland, Hickory Point State Forest, All tags... Maryland, Pocomoke City, Pocomoke River, Relict Tidal Inlet, USGS Science Data Catalog (SDC), United States, biota, climate change, droughts, freshwater ecosystems, freshwater swamp, global warming, regime shift, relict forest, wetlands, Fewer tags Peat collapse and vegetation shift at Hickory Point This work captures a multi-year progression from 2013 to 2021 of change in the height of the topographic surface and freshwater status of the rooting zone that may indicate impending vegetation transition. Two Surface Elevation Tables (SETs) in a tidal Taxodium distichum swamp at Hickory Point State Forest near Pocomoke City, Maryland were used to collect data on the height of the topographic surface established with respect to a local vertical datum. Annual root production over time was measured by collecting data on ingrowth into mesh root bags. Root bags were collected at 5 set locations within the study area and analyzed to determine the weight in grams of new root production per meter cubed each year. This... Types: Collection; Tags: Chesapeake Bay, Forested Wetland, Hickory Point State Forest, Maryland, Pocomoke City, All tags... Pocomoke River, Relict Tidal Inlet, USGS Science Data Catalog (SDC), United States, biota, climate change, droughts, elevation, environment, freshwater ecosystems, freshwater swamp, global warming, inlandWaters, regime shift, relict forest, wetlands, Fewer tags Data Release: Peat collapse and vegetation shift after storm-driven saltwater surge in a tidal freshwater swamp, roots Annual root production over time was measured by collecting data on ingrowth into mesh root bags. The study was conducted on tidal freshwater swamp environments subjected to salinity intrusion at Hickory Point State Forest near Pocomoke City, Maryland. Root bags were collected at 5 set locations within the study area from 2013 to 2021 and analyzed to determine the weight in grams of new root production per meter cubed each year. Categories: Data; Tags: Botany, Chesapeake Bay, Ecology, Forested Wetland, Hickory Point State Forest, All tags... Maryland, Pocomoke City, Pocomoke River, Relict Tidal Inlet, USGS Science Data Catalog (SDC), United States, biota, climate change, droughts, environment, freshwater ecosystems, freshwater swamp, global warming, regime shift, relict forest, wetlands, Fewer tags Data-Driven Drought Prediction Project Model Outputs for Select Spatial Units within the Conterminous United States This metadata record describes model outputs and supporting model code for the Data-Driven Drought Prediction project of the Water Resources Mission Area Drought Program. The data listed here include outputs of multiple machine learning model types for predicting hydrological drought at select locations within the conterminous United States. The child items referenced below correspond to different models and spatial extents (Colorado River Basin region or conterminous United States). See the list below or metadata files in each sub-folder for more details. Daily streamflow percentile predictions for the Colorado River Basin region — Outputs from long short-term memory (LSTM) deep learning models corresponding to... Tags: Conterminous United States, Hydrology, USGS Science Data Catalog (SDC), Upper Colorado River, climatologyMeteorologyAtmosphere, All tags... deep learning, drought prediction, droughts, hydrology, long short-term memory, machine learning, modeling, river systems, statistical analysis, streamflow, streamflow percentiles, streamflow predictions, Fewer tags Estimated tree mortality, basal area, climate, and drought conditions for ponderosa pine in forest inventory plots across the western U.S. These data consist of environmental covariates and estimated plot-level mortality of ponderosa pine trees. Environmental covariates include growing season temperature and soil moisture, and values are summarized into long-term mean conditions, and anomalies observed between forest inventory sampling events for each plot. Data also include plot locations (with uncertainty introduced by the US Forest Service to maintain private property rights), plot basal area, and several variables related to estimated mortality rate of ponderosa pine trees under various assumptions about basal area conditions. Categories: Data; Tags: Arizona, Botany, California, Climatology, Colorado, All tags... Ecology, Forestry, Geography, Idaho, Information Sciences, Montana, Nevada, New Mexico, Oregon, USGS Science Data Catalog (SDC), Utah, Washington, air temperature, basal area, basal area conditions, biota, climate change, droughts, environmental changes, environmental covariates, estimated mortality rate, estimated plot-level mortality, field sampling, forest ecosystems, forest inventory, forest inventory plot, forest inventory sampling events, forest management, forest sampling, forestry, forests, growing season soil moisture, growing season temperature, long-term ecological monitoring, long-term mean conditions, mortality, pine forests, plot basal area, plot locations, plot sampling, ponderosa pine forest, ponderosa pine trees, sampling, soil moisture, tree mortality, vegetation, western United States, Fewer tags U.S. Streamflow Drought During the Last Century: annual drought and low flow metrics, annual climate, and trends for the periods 1921-, 1951- and 1981-2020 This dataset contains annual flow metrics quantifying drought and low streamflows for USGS GAGES-2 gages in the contiguous U.S. satisfying data completeness checks for the periods 1921-2020, 1951-2020, and 1981-2020. The dataset also contains annual climate variables from the USGS Monthly Water Balance Model (MWBM). The dataset provides trend analysis outputs for annual drought and low flow metrics for the periods 1921-2020, 1951-2020, and 1981-2020. Finally, we include six R language code files that were used to create the values included in this release as summarized in the process step section. Categories: Data; Tags: NCCWSC, USGS Science Data Catalog (SDC), USGS:618460d9d34ec04fc9c00082, United States, biota, All tags... droughts, streamflow, surface water (non-marine), water supply and demand, watershed management, Fewer tags Simulated streamflow and stream temperature in the Donner und Blitzen River Basin, southeastern Oregon, using the Precipitation-Runoff Modeling System (PRMS) Streamflow and stream temperature in the Donner und Blitzen River Basin for water years 1980 through 2021 were simulated using the Precipitation-Runoff Modeling System (PRMS) with the "stream_temp" module. The model domain was discretized into 175 stream segments and calibrated to observed streamflow and stream temperature at points distributed throughout the basin. Model input files, including a PRMS control file, parameter file, and meteorological forcing files, are included in the Blitzen_PRMS_input.zip file. Select output variables for each hydrologic response unit (HRU), each stream segment, and PRMS basin summary outputs are included in the Blitzen_PRMS_output.zip file. Shapefiles of the model domain, model... Tags: Ankle Creek (GNIS ID: 1116958, Stream), Donner und Blitzen River (GNIS ID: 1120027, Stream), Fish Creek (GNIS ID: 1120761, Stream), Frenchglen (GNIS ID: 1136302, Populated Place), Hydrology, All tags... Indian Creek (GNIS ID: 1122212, Stream), Indian Spring Creek (GNIS ID: 1129761, Stream), Little Blitzen River (GNIS ID: 1123136, Stream), Mud Creek (GNIS ID: 1124445, Stream), Steens Mountain (GNIS ID: 1127571, Summit), USGS Science Data Catalog (SDC), droughts, mathematical modeling, streamflow, water temperature, Fewer tags Daily Climate and Soil Moisture Data for the Southern Colorado Plateau Network Parks, 1980 – 2018 (ver. 1.1, November 2023) These data are daily climate, water balance, and soil moisture data for 270 plots in the National Park Service (NPS) Southern Colorado Plateau Network (SCPN) Inventory & Monitoring (I&M) network. Climate data was collected from a gridded, daily climate dataset, Daymet (https://daymet.ornl.gov/). Climate, alongside field-collected soils (SoilDepthsByPlot.csv) and vegetation information, were then used to drive a point based, daily, multi soil-layer, ecosystem water-balance model, SOILWAT2 (https://github.com/DrylandEcology/SOILWAT2). SCPN plots were established to capture the range of ecosystem conditions present in this network. Plant communities of the SCPN are a vital sign for this region, enhancing habitat, stabilizing... Categories: Data; Tags: Arizona, Aztec Ruins National Monument, Bandelier National Monument, Chaco Culture National Monument, Colorado, All tags... Colorado Plateau, Glen Canyon National Recreation Area, Grand Canyon National Park, Mesa Verde National Park, National Park Service, New Mexcio, Petrified Forest National Park, Petroglyph National Monument, Southern Colorado Plateau Network, Southwest, USGS Science Data Catalog (SDC), Wupatki National Monument, air temperature, atmospheric and climatic processes, biota, climate, climatologyMeteorologyAtmosphere, data release, droughts, evaporation, field inventory and monitoring, geoscientificInformation, precipitation (atmospheric), soil moisture, soil sciences, soil water potential, southwestern United States, transpiration, water balance, water budget, Fewer tags 1 2 »