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A multiple machine-learning model (Asquith and Killian, 2024) implementing Cubist and Random Forest regressions was used to predict monthly mean groundwater levels through time for the available years described in the metadata for the Mississippi River Valley alluvial aquifer (MRVA). The MRVA is the surficial aquifer of the Mississippi Alluvial Plain (MAP), located in the south-central United States. Employing two machine-learning techniques offered the opportunity to generate model and statistical error and covariance between them to estimate total uncertainty. Potentiometric surface predictions were made at the 1-kilometer grid scale using the National Hydrogeologic Grid (Clark and others, 2018). For a full description...
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Panorama with image 388. The Niter hills west of Amargosa River at Acme, from low knoll west of the T & T. Railroad track about one- quarter mile northwest of mile post 82. Crucero (?) quadrangle. Inyo County, California. January 22, 1918.
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Glacier National Park, Montana. West from the summit of Red Eagle Mountain: Going-to-the-Sun Mountain in the center (photo sec0347a) and Great Northern Railroad chalets on Upper Saint Mary Lake beneath it. Photo by C.S. Corbett. August 1914. Photos sec00347, sec0347a, sec0347b form a panorama.
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Handwritten notes on back of photo: C.H. Birdseye, E.C. LaRue, Herman Stabler. ca. 1924. no. 36177 Stamped on back of photo: Reproduced from the Collection of the Library of Congress. Caption: La Rue, Birdseye, and Stabler standing near the Grand in front of the Interior Building, Washington, D.C., January 12, 1924, obtained from page 243 in Boyer, D., Webb, R., & Collier, M. (2007). Aftermath: Politics and the Strident Hydraulic Engineer. In Damming Grand Canyon: The 1923 USGS Colorado River Expedition (pp. 242-278). University Press of Colorado. doi:10.2307/j.ctt4cgqhx.13
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Isidore Adler, chemist, operates a gonimeter used for x-ray fluorescence analysis of individual grains of mineral specimens, Geologic Division, U.S. Geological Survey, Washington, D.C. 1958. Lower right photograph page 36, Images of the U.S. Geological Survey, 1879-1979.
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Panorama with image 400. High hill shown in panoramic images 398 and 399, showing upper entrance of Amargosa Canyon and dip slope in members of the nitrate-bearing clays. View south form low gravelly point near Acme siding on T. & T. Railroad. Crucero (?) quadrangle. Inyo County, California. January 23, 1918.
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Specimens of sheet mica. Latah County, Idaho. Circa 1943. Plate 8-B in U.S. Geological Survey Professional Paper 229. 1950
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Coastal ecosystems are uniquely vulnerable to changes in the quantity and quality of freshwater discharge. With a warming climate, changes in freshwater discharge into estuaries will interact with rising sea levels. Natural resource managers in coastal areas are looking for guidance on the potential impacts and vulnerabilities to better manage the risks to aquatic species and habitats, and to mitigate species decline or collapse resulting from changes in freshwater availability. In particular, managers and researchers are concerned with producing appropriate ecological flows, which describe the conditions of river and stream flow into estuaries that are needed to ensure the proper structure and function of coastal...
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This dataset consists of annual raster maps of ecosystem carbon stocks, land use and land cover classes, and transition probabilities for the State of California during historical (1985-2020) and projected future (2021-2100) time periods. Data are simulation model output from the The Land Use and Carbon Simulator (LUCAS; Sleeter et al. 2022) run under different climate and land management scenarios. LUCAS model simulations were conducted on an annual timestep at 1-km spatial resolution with 40 Monte Carlo realizations per simulation. For the projected future time period, the model was run under all combinations of four climate scenarios, two urbanization scenarios, and two vegetation management scenarios. The climate...
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This item indexes spatial datasets supporting the U.S. Geological Survey's World Petroleum Assessment, extracted from USGS DDS 60 publication. See child items to access these data.
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Haplophragmoides Ammobaculites. Northern Alaska. n.d. Plate 11 in U.S.Geological Survey Professional Paper 236. 1955.
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Album caption: Panorama with image 820. (Note: No railroad here. Tracks due to second exposure of film.) Exposure near corner of Main and Third Streets, Muscatine, Iowa, east end of section: 1. Illinoian till 0-25 feet; 2. Buchanan gravel 5-10 feet; Kansan till 10-20 feet. Muscatine County, Iowa. September 3, 1914.(Note: No railroad here. Tracks due to second exposure of film.)
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The karstic Edwards and Trinity aquifers are classified as major sources of water in south-central Texas by the Texas Water Development Board, and both are classified as major aquifers by the State of Texas. The Edwards and Trinity aquifers developed because of the original depositional history of the carbonate limestone and dolomite rocks that contain them, and the primary and secondary porosity, diagenesis, fracturing, and faulting that modified the porosity, permeability, and transmissivity of each aquifer and of the geologic units separating the aquifers. Previous studies such as those by the U.S. Geological Survey (USGS) and the Edwards Aquifer Authority (EAA) have mapped the geology, hydrostratigraphy, and...
Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Austin Group, Buda Limestone, Del Rio Clay, Devils River Limestone, Devils River Trend, All tags...
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Kachemak Bay. Specimens of petrified wood. Cook Inlet. Seldovia District. Alaska. Circa 1904. Published in U.S. Geological Survey Bulletin 277, Plate XV-A. 1906.
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Marginulinopsis, marginulina, rectoglandulina and lingulina. Northern Alaska. n.d. Plate 44 in U.S.Geological Survey Professional Paper 236. 1962.
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Panorama with image 387. The Niter hills west of Amargosa River at Acme, from low knoll west of the T & T. Railroad track about one- quarter mile northwest of mile post 82. Crucero (?) quadrangle. Inyo County, California. January 22, 1918.
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The Massachusetts Drought Management Plan (DMP, 2023) uses data from select lake and impoundment systems as an index for drought in six of seven regions in the state. The contents of these lakes and impoundments are reported to Massachusetts Department of Conservation and Recreation (DCR) and classified as one of five levels for drought severity ranging from level 0 (Normal; percentile greater than 30) to level 4 (Emergency; percentile less than 2). Lake and impoundment system data are provided at the end of each month to DCR through multiple agencies as lake levels, volumes, or percent-full (reservoir capacity). USGS reviewed data from 14 of the lake or impoundment systems including 28 waterbodies. Diagrams for...
Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aaron River Reservoir, Ashley Lake, Ashumet Pond, Assawompset Pond, Birch Pond, All tags...


map background search result map search result map Exposure near corner of Main and Third Streets, Muscatine, Iowa, east end of section. Muscatine County, Iowa. 1914. Cambrian diabase-porphyry dike specimens. Arbuckle Mountains. Oklahoma. 1954. The Niter hills west of Amargosa River at Acme, from low knoll west of the T & T. Railroad track about one- quarter mile northwest of mile post 82. Inyo County, California. 1918. The Niter hills west of Amargosa River at Acme, from low knoll west of the T & T. Railroad track about one- quarter mile northwest of mile post 82. Inyo County, California. 1918. High hill shown in panoramic images 398 and 399, showing upper entrance of Amargosa Canyon and dip slope in members of the nitrate-bearing clays. Inyo County, California. 1918. Isidore Adler, chemist, operates a gonimeter used for x-ray fluorescence analysis of individual grains of mineral specimens, Geologic Division,Washington, D.C. 1958. West from the summit of Red Eagle Mountain. Glacier National Park, Montana. 1914. Specimens of sheet mica. Latah County, Idaho. Circa 1943. Kachemak Bay. Specimens of petrified wood. Cook Inlet. Seldovia District. Alaska. Circa 1904. Haplophragmoides Ammobaculites. Northern Alaska. n.d. Marginulinopsis, marginulina, rectoglandulina and lingulina. Northern Alaska. n.d. Eugene Clyde La Rue, Claude H. Birdseye, and Herman Stabler standing by the Grand. Washington, D.C. 1924. Future of Aquatic Flows: Exploring Changes in the Freshwater/Saltwater Interface and Related Impacts to Aquatic Species Data for the Lakes and Impoundments Drought Index in the Massachusetts Drought Management Plan Geospatial Dataset for the Geologic Framework and Hydrostratigraphy of the Edwards and Trinity Aquifers Within Northern Medina County, Texas at 1:24,000 Statistical predictions of groundwater levels and related spatial diagnostics for the Mississippi River Valley alluvial aquifer from the mmlMRVAgen1 statistical machine-learning software Historical and projected future land change and ecosystem carbon stocks for California World Petroleum Assessment 2000 Spatial Datasets Mineral and Water Resources of Alaska Mineral and Water Resources of Arizona Data for the Lakes and Impoundments Drought Index in the Massachusetts Drought Management Plan Isidore Adler, chemist, operates a gonimeter used for x-ray fluorescence analysis of individual grains of mineral specimens, Geologic Division,Washington, D.C. 1958. Eugene Clyde La Rue, Claude H. Birdseye, and Herman Stabler standing by the Grand. Washington, D.C. 1924. Exposure near corner of Main and Third Streets, Muscatine, Iowa, east end of section. Muscatine County, Iowa. 1914. Geospatial Dataset for the Geologic Framework and Hydrostratigraphy of the Edwards and Trinity Aquifers Within Northern Medina County, Texas at 1:24,000 Specimens of sheet mica. Latah County, Idaho. Circa 1943. West from the summit of Red Eagle Mountain. Glacier National Park, Montana. 1914. The Niter hills west of Amargosa River at Acme, from low knoll west of the T & T. Railroad track about one- quarter mile northwest of mile post 82. Inyo County, California. 1918. The Niter hills west of Amargosa River at Acme, from low knoll west of the T & T. Railroad track about one- quarter mile northwest of mile post 82. Inyo County, California. 1918. High hill shown in panoramic images 398 and 399, showing upper entrance of Amargosa Canyon and dip slope in members of the nitrate-bearing clays. Inyo County, California. 1918. Kachemak Bay. Specimens of petrified wood. Cook Inlet. Seldovia District. Alaska. Circa 1904. Statistical predictions of groundwater levels and related spatial diagnostics for the Mississippi River Valley alluvial aquifer from the mmlMRVAgen1 statistical machine-learning software Cambrian diabase-porphyry dike specimens. Arbuckle Mountains. Oklahoma. 1954. Mineral and Water Resources of Arizona Historical and projected future land change and ecosystem carbon stocks for California Haplophragmoides Ammobaculites. Northern Alaska. n.d. Marginulinopsis, marginulina, rectoglandulina and lingulina. Northern Alaska. n.d. Mineral and Water Resources of Alaska Future of Aquatic Flows: Exploring Changes in the Freshwater/Saltwater Interface and Related Impacts to Aquatic Species World Petroleum Assessment 2000 Spatial Datasets