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Watershed Pairing of Sub-Basins within Smith Canyon Watershed using a Hierarchical Clustering Approach This data release contains data used in an associated publication: Petrakis, R.E., Norman, L.M., Vaughn, K., Pritzlaff, R., Weaver, C., Rader, A., and Pulliam, H.R., 2021, Hierarchical Clustering for Paired Watershed Experiments: Case Study in Southeastern Arizona, U.S.A.: Water, v. 13, no. 21, p. 2955, https://doi.org/10.3390/w13212955. The overarching effects and benefits of land management decisions, such as through watershed restoration, are often not fully understood due to a lacking control within an experimental design. This can be addressed through the application of a paired watershed approach, allowing for comparison between treatment and control watersheds. We developed and applied a statistic-based... Tags: Arizona, Correlation Analysis, Environmental Health, Geography, Hierarchical Clustering, All tags... Land Use Change, Paired Watersheds, Patagonia, Arizona, Remote Sensing, Restoration, Santa Cruz County, Spatial Database Development, USGS Science Data Catalog (SDC), United States, Water Quality, Water Resources, Fewer tags Datasheets associated with borehole sampling of surficial sediments in Northern Virginia and Southern Maryland conducted by the U.S. Geological Survey for the Federal Highways Administration Turner-Fairbanks Research Center In Situ Scour Testing Device This spreadsheet contains the results of open-bore auger samples collected by the U.S. Geological Survey in Maryland and Virginia for the Federal Highways Administration Turner-Fairbanks Highway Research Center. 19 sites were selected in 14 different locations across northern Virginia and southern Maryland by FBGC scientists to drill boreholes for the development of the TFHRC’s In-situ Scour Testing Device (ISTD) and to investigate the sedimentological properties of different layers of the near-surface soil column. Each worksheet in this excel workbook contains the detailed log information for one site, including its name, gps coordinates, surface elevation, borehole depth, information about the drilling rig used... Categories: Data; Tags: Geography, Geomorphology, Information Sciences, Maryland, USGS Science Data Catalog (SDC), All tags... Virginia, augering, biota, surficial geologic units, Fewer tags Enhanced Terrain Imagery of the Carlisle 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Carlisle 30 x 60 minute quadrangle in Pennsylvania. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2019 and 2020 and downloaded from the USGS National Map TNM Download. The data were processed using geographic information systems (GIS) software. The data is projected in WGS 1984 Web Mercator. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief according to a topographic position index (TPI) calculation. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Geography, Land Use Change, Pennsylvania, Water Resources, digital elevation models, All tags... elevation, image collections, lidar, topography, Fewer tags Spatial Database of Known and Potential Ciénegas in the Greater Madrean Archipelago Ecoregion This dataset provides location information and some limited attributes of known and potential ciénegas in the Madrean Archipelago ecoregion and closely surrounding area. This was created using point data and information provided by Dean Hendrickson and Thomas Minckley, combined with potential locations derived from analysis of classified raster land cover images and other specialized datasets. Ciénegas, as defined here, are wetlands in arid and semi-arid regions associated with groundwater or lotic components that ideally result in perennial waters on temporal scales of decades to centuries. Ciénegas are typically located at elevations ranging from 0 to 2000m. Ciénegas are typified by significant differences in... Tags: Arizona, Ecology, Geography, Hydrology, Land Use Change, All tags... Madrean Archipelago ecoregion, New Mexico, Sonora, USGS Science Data Catalog (SDC), arid lands, ciénaga, ciénega, freshwater marsh, inlandWaters, springs, wetland ecosystems, Fewer tags Digital database of the previously published map showing geology, structure, and oil and gas fields in the Sterling 1 degree x 2 degrees quadrangle, Colorado, Nebraska, and Kansas This release contains geospatial data digitized from the Map Showing Geology, Structure, and Oil and Gas Fields in the Sterling 1x2 Degree Quadrangle, Colorado, Nebraska, and Kansas (Scott, 1978) and was compiled as part of the National Geologic Synthesis project. The geospatial data depicts the geology of this quadrangle, which is dominated by Quaternary alluvial and aeolian deposits overlying Tertiary and Cretaceous sedimentary rock, including the Ogallala formation, the Fox Hills sandstone, and the Pierre shale. The included database includes spatial data depicting the locations of mapped geologic contacts and faults, polygons denoting the mapped surficial extent of geologic formations, and structural contours... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arikaree formation, Colorado, Federal Geographic Data Committee, Fox Hills sandstone, GeMS, All tags... Geography, Geologic Map Schema, High Plains aquifer, Kansas, Laramie formation, NCGMP, NGS, National Cooperative Geologic Map Program, National Geologic Synthesis Program, National Geologic Synthesis Project, Nebraska, Ogallala formation, Pierre Shale, Platte River, Sedimentology, Sterling, Stratigraphy, Structural Geology, US GeoFramework Initiative, USGI, USGS Science Data Catalog (SDC), White River group, farming, geologic contacts, geologic maps, geoscientificInformation, Fewer tags Surface and subsurface geologic data from previous USGS studies of the Gulf Coast region, south-central United States This dataset captures in digital form the results of previously published U.S. Geological Survey (USGS) Water Mission Area studies related to water resource assessment of Cenozoic strata and unconsolidated deposits within the Mississippi Embayment and the Gulf Coastal Plain of the south-central United States. The data are from reports published from the late 1980s to the mid-1990s by the Gulf Coast Regional Aquifer-System Analysis (RASA) studies and in 2008 by the Mississippi Embayment Regional Aquifer Study (MERAS). These studies, and the data presented here, describe the geologic and hydrogeologic units of the Mississippi embayment, Texas coastal uplands, and the coastal lowlands aquifer systems, south-central... Tags: 3D, Alabama, Arkansas, Cane River Formation, Carrizo Sand, All tags... Cenozoic, Claiborne Group, Coastal lowlands aquifer system, Cockfield Formation, Cook Mountain Formation, Eocene, Geography, Jackson Group, Kentucky, Laredo Formation, Louisiana, Lower Claiborne confining unit, Lower Wilcox aquifer, McNairy-Nacatoch aquifer, Memphis Sand, Middle Claiborne aquifer, Middle Claiborne confining unit, Middle Wilcox aquifer, Midway Group, Midway confining unit, Miocene, Mississippi, Mississippi River Valley alluvial aquifer, Mississippi River Valley alluvial aquifer, Mississippi embayment aquifer system, Missouri, NCGMP (National Cooperative Geologic Mapping Program), National Cooperative Geologic Mapping Program, National Geologic Synthesis Project, Oklahoma, Oligocene, Paleocene, Pliocene, Quaternary, Regional Aquifer System Analysis, Sparta Sand, Tennessee, Tertiary, Texas, Texas coastal uplands aquifer system, US GeoFramework Initiative, USGI, USGS Science Data Catalog (SDC), United States GeoFramework Initiative, Upper Claiborne Aquifer, Upper Wilcox aquifer, Vicksburg Group, Wilcox Group, Yegua Formation, alluvial, borehole, elevation, elevation, environment, hydrogeologic, marine shale, sandstone, stratigraphic thickness, structure contours, thickness, three dimensional, Fewer tags Annual (1986-2020) land-use/land cover maps of the Santa Cruz Watershed and Tucson metropolitan area, Arizona Annual (1986-2020) land-use/land cover maps at 30-meter resolution of the Tucson metropolitan area, Arizona and the greater Santa Cruz Watershed including Nogales, Sonora, Mexico. Maps were created using a combination of Landsat imagery, derived transformation and indices, texture analysis and other ancillary data fed to a Random Forest classifier in Google Earth Engine. The maps contain 13 classes based on the National Land Cover Classification scheme and modified to reflect local land cover types. Data are presented as a stacked, multi-band raster with one "band" for each year (Band 1 = 1986, Band 2 = 1987 and so on). Note that the year 2012 was left out of our time series because of lack of quality Landsat data.... Tags: Geography, Land Use Change, Remote Sensing, USGS Science Data Catalog (SDC), biota, All tags... borderlands, environment, land use land cover, Fewer tags Global Ecological Classification of Coastal Segment Units A new data layer provides global coastal segments at 1 km or shorter resolution produced from a partitioning of a 30 m Landsat-derived shoreline vector that was segmented into 4 million 1 km or shorter segments. Each segment was attributed with values from 10 variables that represent the ecological settings in which the coastline occurs, including properties of the adjacent water, adjacent land, and coastline itself. The 4 million segments were classified into 81,000 coastal segment units (CSUs) as unique combinations of variable classes. Tags: Ecology, Geography, USGS Science Data Catalog (SDC), coastlines, global Database for the Surficial Geologic Map of the Charleston Region, Berkeley, Charleston, Colleton, Dorchester, and Georgetown Counties, South Carolina This database portrays the surface and shallow subsurface geology of the greater Charleston, S.C. region east of 80°30′ west and south of 33°15′ north. The region covers the entirety of Charleston County and portions of Berkeley, Colleton, Dorchester, and Georgetown Counties. Units locally exposed at the surface range in age from middle Eocene to Holocene, but most of the area is covered by Quaternary interglacial deposits. These are, from oldest to youngest, the Okefenokee, Waccamaw(?), Penholoway, Ladson, Ten Mile Hill, and Wando Formations and the Silver Bluff beds. Two cross sections (not included in the database), one running southeast from Harleyville to the coastline on James Island and the other running... Tags: Adam Run fault, Ashepoo River, Ashley Formation, Ashley River, Ashley River fault, All tags... Atlantic Ocean, Awendaw, Back River, Berkeley County, Bethera, Bull Harbor, Captain Sams Inlet, Cenozoic, Chandler Bridge Formation, Charleston, Charleston County, Charleston Harbor, Charleston fault, Clark Sound, College Park, Colleton County, Cooper River, Coosaw River, Copahee Sound, Cordesville, Cottageville, Daniel Island beds (informal), Dawho River, Dorchester, Dorchester County, East Branch Cooper River, Economic Geology, Edisto Beach, Edisto Formation, Edisto Island, Edisto River, Eocene, Esterville Minim Creek Canal, Folly Beach, Folly River, Fort Moultrie, Fort Sumter, Fort Wagner, Four Hole Swamp, Francis Marion National Forest, Geomorphology, Givhans, Goose Creek Limestone, Goose Creek Reservoir, Hamlin Sound, Harleyville, Harleyville Formation, Hollywood, Holocene, Huger, Huttos Lake, Intracoastal Waterway, Island of Palms, Jacksonboro, Jedburg, Johns Island, Kiawah River, Ladson, Ladson Formation, Lake Francis, Lake Merkel, Lake Moultrie, Lincolnville, Marine Geology, Marks Head Formation, Meggett, Miocene, Moncks Corner, Neogene, North Charleston, North Edisto River, North Santee, North Santee River, Okefenokee Formation, Oligocene, Open-File Report, Paleogene, Parachucla Formation, Parkers Ferry Formation, Penholoway Formation, Phanerozoic, Pinopolis, Pleistocene, Pliocene, Quaternary, Ravenel, Raysor Formation, Ridgeville, Saint Helena Sound, Santee Limestone, Seabrook Island, Sedimentology, Shulerville, Silver Bluff beds, South Edisto River, South Santee River, Stono Inlet, Stono River, Stratigraphy, Summerville, Summerville fault, Tail Race Canal, Ten Mile Hill Formation, Tertiary, Tibwin, Toogoodoo Creek, Tupelo Bay Formation Cross Member, Tupelo Bay Formation Pregnall Member, USGS Science Data Catalog (SDC), Waccamaw(?) Formation, Wadmalaw, Wadmalaw River, Wando, Wando Formation, West Branch Cooper River, Whiteville, Woodstock fault, alluvial terrace, alluvium, beach sand, bedrock geologic units, biostratigraphy, carbonate rock, cartography, clay deposits, clay or mud, climatologyMeteorologyAtmosphere, colluvium, earth sciences, earthquakes, economic geology, environment, fault zones, faults, flood plain, geography, geologic contacts, geologic history, geologic maps, geologic processes, geology, geomorphology, geoscientificInformation, geospatial datasets, gravel, gravel deposits, human impacts, lake or marine sediment, limestone, lithostratigraphy, maps and atlases, marine geology, mud flat, natural rock formations, nonmetallic mineral resources, peat, rocks and deposits, sand, sand deposits, sedimentary rocks, sedimentation, sedimentology, silt, stratigraphy, structural geology, structure contours, study areas, surficial geologic units, terrace, time periods, unconformities, unconsolidated deposits, unconsolidated material, Fewer tags Point locations of brick kilns in Kabul, Afghanistan, derived from 1965, 2004, 2011, and 2018 satellite imagery This dataset was created as part of the USGS Afghanistan Project investigating artisanal and small-scale mining activity. Clay mining for brick making purposes represents a small but important segment of the mineral extraction industry in Kabul, Afghanistan. Over the past several decades Kabul has grown from a relatively small city, with a 1970 population of less than 500,000 people, to a sprawling urban center with approximately 4.2 million people in 2020 (CIA 2020). Population growth has expanded the need for housing, commercial, and industrial buildings, and associated infrastructure. This has greatly increased demand for bricks, the primary construction material of the region. In this study, very high-resolution... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Afghanistan, Geography, Loess, Mineral Resources, USGS Science Data Catalog (SDC), All tags... biota, clay deposits, mining and quarrying, Fewer tags USGS 3D Elevation Program (3DEP) Broad Agency Announcement and Data Collaboration Announcement Projects from Fiscal Year 2015 to Present These data provide spatial information about USGS 3D Elevation Program (3DEP) Broad Agency Announcement (BAA) and Data Collaboration Announcement (DCA) lidar data acquisition projects from Fiscal Year (FY) 2015 to present, including the FY, state, project name, project size, award recipient, lidar quality level (QL), contracting mechanism, and project description. Tags: 3D Elevation Program, 3DEP, BAA, Broad Agency Announcement, DCA, All tags... Data Collaboration Announcement, Geography, Information Sciences, Remote Sensing, USGS Science Data Catalog (SDC), boundaries, Fewer tags Enhanced Terrain Imagery of the Scranton 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Scranton 30 x 60 minute quadrangle in Pennsylvania. It also covers part of the Delaware River Basin. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2017 and 2019 from the Pennsylvania Spatial Data Access (PASDA). The data were processed using geographic information systems (GIS) software. The data is projected in North America Datum (NAD) UTM Zone 18 North. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief according to... Categories: Data; Tags: Delaware River Basin, Geography, Geomorphology, Lidar, USGS Science Data Catalog (SDC), All tags... elevation, imageryBaseMapsEarthCover, lidar, terrain, topography, Fewer tags Digital database of the previously published geologic map of the greater Denver area, Front Range Urban Corridor, Colorado This digital map shows the areal extent of surficial deposits and rock stratigraphic units (formations) as compiled by Trimble and Machette from 1973 to 1977 and published in 1979 under the Front Range Urban Corridor Geology Program. Trimble and Machette compiled their geologic map from published geologic maps and unpublished geologic mapping having varied map unit schemes. A convenient feature of the compiled map is its uniform classification of geologic units that mostly matches those of companion maps to the north (USGS I-855-G) and to the south (USGS I-857-F). Published as a color paper map, the Trimble and Machette map was intended for land-use planning in the Front Range Urban Corridor. This map recently (1997-1999)... Tags: Adams County, Arapahoe County, Arapahoe Formation, Colorado, Colorado Front Range, All tags... Colorado Piedmont, Cretaceous rocks, Dawson Formation, Denver, Denver County, Denver Creek granodiorite, Denver Formation, Douglas County, Economic Geology, Elbert County, Front Range Urban Corridor, GeMS, Geography, Geologic Map Schema, Geologic map, Glaciology, Golden, Golden Fault, Jefferson County, Land Use Change, Mineral Resources, NCGMP, NGS, National Cooperative Geologic Mapping Program, National Geologic Synthesis Project, Oligocene bedrock, Paleocene bedrock, Paleozoic rocks, Pierre Shale, Precambrian rocks, Quaternary deposits, Silver Plume quartz monzonite, Stratigraphy, Structural Geology, US GeoFramework Initiative, USA, USGI, USGS Science Data Catalog (SDC), United States of America, Wall Mountain Tuff, aggregate, alluvial gravel, eolian sand, geologic hazard, land-use planning, landslide deposit, mine subsidence, urban growth, urban zoning, windblown sand, Fewer tags LCMAP CONUS Geographic Assessment Data Tables v1.0 1985-2016 This is a collection of data tables supporting the LCMAP CONUS Geographic Assessment v1.0. The data used to generate these tables come from the USGS LCMAP reference dataset and the map products released by LCMAP. Tables include annual land cover class composition and annual rate of land cover change metrics developed with a post-stratified estimator. Other tables including annual gross change of specific types of land covers, cumulative metrics of overall geographic footprint of change, frequency of overall geographic footprint of change, overall area estimates of specific class changes, and all unique changes in land cover classes. All tables cover the time period 1985-2016. All values in these tables are presented... Tags: Geography, LCMAP, Land Change Monitoring, Assessment, and Projection, Land Use Change, Landsat, All tags... Remote Sensing, USGS Science Data Catalog (SDC), United States, geography, geoscientificInformation, gross change, land cover, land cover change, land use and land cover, land use change, land-cover class change, net change, square kilometers, standard error, Fewer tags Vegetation and Water Monitoring Datasets for selected locations in the Republic of the Marshall Islands from 2017-2022 The Republic of the Marshall Islands (RMI) is a sovereign Small Island State in the tropical central North Pacific Ocean. RMI is a nation of more than thirty atolls and islands, most of which are inhabited, dispersed across an exclusive economic zone (EEZ) over 2 million square kilometers. This data release contains raster datasets for vegetation and water monitoring including Normalized Difference Vegetation Index (NDVI), Landscape Water Requirement Satisfaction Index (L-WRSI), and Soil Moisture Index (SMI) for selected locations and precipitation (dekadal (10-day) sum) for the entire RMI from 2017-2022. These data were compiled to support a 2022-2023 U.S. Geological Survey project for developing methods to apply... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ailinglaplap Atoll, Ebon Atoll, Geography, Hydrology, Land Use Change, All tags... Mejit Island, Mili Atoll, Normalized Difference Vegetation Index (NDVI), Remote Sensing, Republic of Marshall Islands, Soil moisture index, USGS Science Data Catalog (SDC), Vegetation health, Water Requirement Satisfaction Index, Water Resources, Water use, Wotho Atoll, Wotje Atoll, precipitation (atmospheric), Fewer tags Enhanced Terrain Imagery of the Harrisburg 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Harrisburg 30 x 60 minute quadrangle in Pennsylvania. It also covers part of the Delaware River Basin. The source data used to construct this imagery consist of 1-meter and 3-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2013 and 2018 from the U.S. Department of Agriculture (USDA) and the US Geological Survey (USGS). The data were processed using geographic information systems (GIS) software. The data are projected in North America Datum (NAD) UTM Zone 18 North. This representation illustrates the terrain as a hillshade with contrast... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Delaware River Basin, Geography, Geomorphology, Lidar, USGS Science Data Catalog (SDC), All tags... elevation, geology, imageryBaseMapsEarthCover, lidar, topography, Fewer tags Kootenai River Topobathymetric Lidar Validation Survey Data U.S. Geological Survey (USGS) scientists conducted field data collection efforts during the week of September 25 – 29, 2017, using a combination of conventional surveying technologies, for a large stretch of the Kootenai River near Bonners Ferry, Idaho. The work was initiated as an effort to validate commercially acquired topobathymetric light detection and ranging (lidar) data. The goal was to compare the airborne lidar data to topographic and bathymetric data collected through more traditional means (e.g. waded Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) surveys). The validated topobathymetric lidar data will be used for hydrologic modeling, assessment and restoration of aquatic habitat,... Tags: 3D Elevation Program, 3DEP, Aquatic Biology, Bonners Ferry, Ecology, All tags... GNSS, Geography, Geomorphology, Global Navigation Satellite System, Hydrology, Kootenai River, Lidar, Lidar Validation, Light Detection and Ranging, NGP Inland Bathymetry Research, National Geospatial Program, RTN, Real-Time Network, Remote Sensing, State of Idaho, Topobathy, Topobathymetric Lidar, Total Station, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WSRN, Washington State Reference Network, elevation, geoscientificInformation, location, Fewer tags Lidar-derived imagery and digital elevation model of Monroe County, West Virginia at 3-meter resolution These raster datasets are 3-meter lidar-derived images of Monroe County, West Virginia, and were created using geographic information systems (GIS) software. Lidar-derived elevation data acquired in late December of 2016 were used to create a 3-meter resolution working digital elevation model (DEM), from which a hillshade was applied and a topographic position index (TPI) raster was calculated. These two rasters were uploaded into GlobalMapper, where the TPI raster was made partially transparent and overlaid the hillshade DEM. The resulting image was exported to create a 3-meter resolution lidar-derived image. The data is projected in North America Datum (NAD) 1983 UTM Zone 17. Tags: Geography, Geomorphology, Monroe County, Remote Sensing, USGS Science Data Catalog (SDC), All tags... United States, West Virginia, data release, digital elevation models, geospatial datasets, image collections, lidar, maps and atlases, topography, Fewer tags Data Release - Geologic map of the central Upper Peninsula, Michigan This dataset supports the publication “Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USA.” At a 1:100,000 scale, these data are in a geologic database in the Geologic Map Schema (GeMS) which includes spatial feature classes and non-spatial tables that contain the geologic information presented in figure 8 and S3 of appendix A, the supplemental map of the publication. Geologic map of the central Upper Peninsula, Michigan Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alger County, Ashland County, Baraga County, Bayfield County, Delta County, All tags... Dickinson County, Economic Geology, Florence County, Forest County, Geography, Geomorphology, Geophysics, Glaciology, Gogebic County, Houghton County, Iron County, MI, Marinette County, Marquette County, Menominee County, Michigan, Mineral Resources, Oneida County, Ontonagon County, Price County, Sawyer County, Stratigraphy, Structural Geology, USGS Science Data Catalog (SDC), Vilas County, WI, Wisconsin, bedrock geologic units, data services, geographic information systems, geologic maps, geology, geospatial datasets, structural geology, Fewer tags Data release for structure-from-motion DEMs derived from historical aerial photographs and their use in geomorphological mapping This data release publishes datasets within and surrounding the Piney Branch watershed located in the Washington, D.C. metropolitan suburb of Vienna, Virginia. This dataset was utilized in studies that investigated the accuracy and application of geospatial modeling techniques, structure-from-motion (SfM) photogrammetric methods, and digital elevation model (DEM) differencing to assess and quantify geomorphic and anthropogenic landform change. The United States Geological Survey’s (USGS) three-dimensional digital elevation program (3DEP) light detection and ranging (LiDAR) digital terrain models (DTMs) were used together with and as a means for comparison to DTMs created from historical aerial imagery. The creation... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geography, Geomorphology, Remote Sensing, USGS Science Data Catalog (SDC), Vienna, All tags... aerial photography, biota, digital elevation models, image collections, remote sensing, Fewer tags 1 2 3 4 5 6 »