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This data release contains monthly 270-meter resolution Basin Characterization Model (BCMv8) climate and hydrologic variables for Localized Constructed Analog (LOCA; Pierce et al., 2014)-downscaled ACCESS 1.0 Global Climate Model (GCM) for Representative Concentration Pathway (RCP) 4.5 (medium-low emissions) and 8.5 (high emissions) for hydrologic California. The LOCA climate scenarios span water years 1950 to 2099 with greenhouse-gas forcings beginning in 2006. The LOCA downscaling method has been shown to produce better estimates of extreme events and reduces the common downscaling problem of too many low-precipitation days (Pierce et al., 2014). Ten GCMs were selected from the full ensemble of models from the...
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This data release contains time-lapse imagery taken at U.S. Geological Survey (USGS) stream gaging stations with associated hydrologic and meteorological data related to each image. These data are to help improve the development of models in detecting water elevation at a given stream gaging station. Images of the water surface and surroundings at USGS stream gaging stations were taken at varying time intervals ranging between every five minutes to an hour. Cameras used include trail cameras, web cameras, and the custom river imagery sensing (RISE) camera. Time-lapse images for each USGS stream gaging station are provided in compressed files (file extension .7z). These files are named in a format to identify the...
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A total of 27 temperature sensors were deployed along the lower 90 miles of the Yakima River at 7 locations where cold water had been previously observed. These 7 cold-water areas had 3 to 6 temperature sensors installed to document the extent and duration of these cold-water areas and their impacts on mainstem temperatures of the Lower Yakima River. Cold-water areas included the mouths of tributaries, alongside channels, and within alcoves. Sensor deployments ranged from 1 to 2 years beginning in October 2018. All temperature data are included in the Yakima.temperatures.zip folder. Details of each monitoring location are provided in the site.locs.csv file. In addition to the raw data and site location information,...
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A before-and-after study design was used to examine effects of changes in cattle grazing practices on channel stability in Muddy Creek, an arroyo in the Colorado River headwaters. The changes in grazing practices were abrupt and focused on keeping cattle out of the riparian zone and increasing herd movement. We digitized 620 meander loop cutoff geometries within the digitized alluvial valley bottom of Muddy Creek and used the meander loop cutoff rate as a broad measure of channel stability. Poisson regression modeling of meander loop cutoff rate indicated that the change in grazing practices caused an order-of-magnitude decline in meander loop cutoff rate that was independent of other hydroclimatic and human-caused...
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A three-dimensional groundwater flow model using MODFLOW-NWT was developed to evaluate historical and potential stream capture in the lower Humboldt River Basin, Nevada. The Humboldt River Basin is the only river basin that is contained entirely within the state of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. Previous work has demonstrated that the river’s surface-water resource is sensitive to groundwater withdrawals, which have steadily increased since the 1950s for agriculture, municipal, and mining uses. A numerical groundwater flow model was developed for the purpose...
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This data release contains monthly 270-meter resolution Basin Characterization Model (BCMv8) climate and hydrologic variables for Localized Constructed Analog (LOCA; Pierce et al., 2014)-downscaled Global Climate Models (GCMs) for Representative Concentration Pathway (RCP) 4.5 (medium-low emissions) and 8.5 (high emissions) for hydrologic California. The 20 future climate scenarios consist of ten GCMs with RCP 4.5 and 8.5 each: ACCESS 1.0, CanESM2, CCSM4, CESM1-BGC, CMCC-CMS, CNRM-CM5, GFDL-CM3, HadGEM2-CC, HadGEM2-ES, and MIROC5. The LOCA climate scenarios span water years 1950 to 2099 with greenhouse-gas forcings beginning in 2006. The LOCA downscaling method has been shown to produce better estimates of extreme...
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States in the North Central (NC) region have already been invaded by grass speciescapable of altering fire regimes and creating self-perpetuating 'grass-fire cycles'. Under climatechange, these grasses may interact with drought and fire to burn more and exclude native species. Managers can plan for these interactions and create collaborative communities to address thesecomplex challenges.
This ScienceBase space provides an array of USGS Series publications, journal articles, and other published references for the Gap Analysis Project (GAP). Information on GAP-related publications can also be found at: https://www.usgs.gov/core-science-systems/science-analytics-and-synthesis/gap/publications
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This album contains photographs and context from field excursions to North Dakota and Yellowstone. While the entire album is not available, certain pages were digitized and made available in the attached zip file.
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This R code (Nest_Cards_QC.R) is used to process the raw legacy nest card data (1985 - 2019) and produce the quality controlled legacy nest card data for analysis and sharing. This code does not quality control the double searched plots (R2 plots in 1995-99), which is done in the file ‘PrepData.R’. Basic operations include transforming missing value to a common code, transforming other variable to match the data dictionary for nest cards, and resolving non-unique observer initials. The code requires the raw data (“1985-2019_Nest Cards_10-24-19_cleaned.xlsx”) and the table of observer names (“Observer Names_1985-2019_10-24-19.xlsx”). The code writes the QC nest card file “Nest_Cards_1985_2019_QC.csv”. Mostly obseration...
Categories: Data, Software; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, ANIMALS/VERTEBRATES, All tags...
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This is the quality controlled YKD salinity data for fixed and random plots 2006 - 2019. These data are quality controlled using the R code in the file ‘YKDsalinity_QC.R’ to produce the data used for analysis and sharing (‘YKDsalinity_QC.R’). These data should be what is used for analysis or distributed on request.
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Album caption: Lakes Peters and Lake Schrader, Sadlerochit River, Alaska. Index card: Lakes Peters and Schrader, Sadlerochit River. Arctic Slope, Canning District, Alaska. ca. 1910. Notes: Published in U.S. Geological Survey Professional Paper 109, Plate XI-B. 1919. Panorama with lek0002a.
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As part of the State Wildlife Grant Fund, states are required to submit State Wildlife Plans (SWAPs) every 10 years detailing threats to habitats and species and conservation plans. However, incorporating climate change in SWAPs is voluntary, and capacity/expertise limitations at state agencies have resulted in varied and often only partial consideration of climate change impacts. In response, the MW CASC will conduct literature reviews to assess climate stressors and impacts to habitats and key species and to identify relevant adaptation actions for 13 different Level 2/3 EPA Ecoregions contained within the MW CASC area states. This work will provide a foundation for future habitat vulnerability assessments. ...
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The data herein are geochemical (from X-Ray fluorescence spectrometry), grain size (percent clay, silt, sand), lithological (loss on ignition data), bathymetric, reconstructed IVT, and radioactive isotopes (14-C, 210-Pb, 226-Ra, and 137-Cs). These data were collected from sediments from Leonard Lake, Mendocino County, California, USA starting in 2014. Together, these data provide evidence for a record of extreme precipitation going back three millennia, showing regional pluvial and drought cycles.
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Album caption: Section of spruce tree showing wave damage, Lituya Bay. Mt. Fairweather quadrangle, Lituya district, Alaska Gulf region, Alaska. 1954. Index card: Section cut in 1953 from spruce tree growing just above trimline of 1853-54 giant wave. There are 100 growth rings outside injury on right. Mount Fairweather quadrangle, Lituya district, Alaska Gulf region, Alaska. Published as Plate 10 in U.S. Geological Survey. Professional paper 354-C. 1960.
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Cheatgrass began invading the Great Basin about 100 years ago, changing large parts of the landscape from a rich, diverse ecosystem to one where a single invasive species dominates. Cheatgrass dominated areas experience more fires that burn more land than in native ecosystems, resulting in economic and resource losses. Therefore, the reduced production, or absence, of cheatgrass in previously invaded areas during years of adequate precipitation could be seen as a windfall. However, this cheatgrass dieoff phenomenon creates other problems for land managers like accelerated soil erosion, loss of early spring food supply for livestock and wildlife, and unknown recovery pathways. We used satellite data and scientific...
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Maintaining the native prairie lands of the Northern Great Plains (NGP), which provide an important habitat for declining grassland species, requires anticipating the effects of increasing atmospheric carbon dioxide (CO2) concentrations and climate change on the region’s vegetation. Specifically, climate change threatens NGP grasslands by increasing the potential encroachment of native woody species into areas where they were previously only present in minor numbers. This project used a dynamic vegetation model to simulate vegetation type (grassland, shrubland, woodland, and forest) for the NGP for a range of projected future climates and relevant management scenarios. Comparing results of these simulations illustrates...
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In southwestern Colorado, land managers anticipate the impacts of climate change to include higher temperatures, more frequent and prolonged drought, accelerated snowmelt, larger and more intense fires, more extreme storms, and the spread of invasive species. These changes put livelihoods, ecosystems, and species at risk. Focusing on communities in southwestern Colorado’s San Juan and Gunnison river basins, this project will expand opportunities for scientists, land managers, and affected residents to identify actions that can support resilience and adaptation in the face of changing climate conditions. This project builds on the project “Building Social and Ecological Resilience to Climate Change in southwestern...
map background search result map search result map Modeling Effects of Climate Change on Cheatgrass Die-Off Areas in the Northern Great Basin Projecting the Future Encroachment of Woody Vegetation into Grasslands of the Northern Great Plains by Simulating Climate Conditions and Possible Management Actions Publications of the Gap Analysis Project Spanish coquina quarries. Anastasia Island, St Johns County, Florida. 1907. Lake Peters and Lake Schrader, Sadlerochit River. Canning District, Northern Alaska Region, Alaska. circa 1910. Section of spruce tree showing wave damage, Lituya district, Alaska Gulf region, Alaska. 1954. Building Social and Ecological Resilience to Climate Change in Southwestern Colorado: Phase 2 Temperature data collected from the Lower Yakima River from October 2018 to October 2020 Future Climate and Hydrology from Twenty Localized Constructed Analog (LOCA) Scenarios and the Basin Characterization Model (BCMv8) Future Climate and Hydrology from the Basin Characterization Model (BCMv8) using LOCA-downscaled Global Climate Model ACCESS 1.0 Imagery training dataset for the River Imagery Sensing (RISE) application RISCC Network Management Challenge: The Invasive Grass-Fire Cycle in the North Central U.S. State Wildlife Action Planning in the Midwest MODFLOW-NWT Model Used to Evaluate Stream Capture Related to Groundwater Pumping, Lower Humboldt River Basin, Nevada (ver. 1.1, March 2024) Digitized datasets used in channel stability study in the Colorado River headwater arroyo system of Muddy Creek, Wyoming Geochemical, grain size, lithological, bathymetric, reconstructed integrated vapor transport, and age model data for Leonard Lake, Mendocino County P.B. King's North Dakota & Yellowstone Album. 1955. Alaska Yukon Delta Nest Plot Distance Sampling Field Protocol Alaska Yukon Delta Nest Plot Survey Legacy Nest Card Quality Control R Code Alaska Yukon Delta Pond Salinity Data 2006 - 2019 Digitized datasets used in channel stability study in the Colorado River headwater arroyo system of Muddy Creek, Wyoming P.B. King's North Dakota & Yellowstone Album. 1955. Alaska Yukon Delta Pond Salinity Data 2006 - 2019 Geochemical, grain size, lithological, bathymetric, reconstructed integrated vapor transport, and age model data for Leonard Lake, Mendocino County Alaska Yukon Delta Nest Plot Distance Sampling Field Protocol Alaska Yukon Delta Nest Plot Survey Legacy Nest Card Quality Control R Code Building Social and Ecological Resilience to Climate Change in Southwestern Colorado: Phase 2 Modeling Effects of Climate Change on Cheatgrass Die-Off Areas in the Northern Great Basin Section of spruce tree showing wave damage, Lituya district, Alaska Gulf region, Alaska. 1954. Future Climate and Hydrology from Twenty Localized Constructed Analog (LOCA) Scenarios and the Basin Characterization Model (BCMv8) Future Climate and Hydrology from the Basin Characterization Model (BCMv8) using LOCA-downscaled Global Climate Model ACCESS 1.0 Projecting the Future Encroachment of Woody Vegetation into Grasslands of the Northern Great Plains by Simulating Climate Conditions and Possible Management Actions State Wildlife Action Planning in the Midwest RISCC Network Management Challenge: The Invasive Grass-Fire Cycle in the North Central U.S. Lake Peters and Lake Schrader, Sadlerochit River. Canning District, Northern Alaska Region, Alaska. circa 1910. Imagery training dataset for the River Imagery Sensing (RISE) application Publications of the Gap Analysis Project