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Washington, DC & Vicinity Aerial Photographs, 1945-1949 This collection (known internally at Maryland Geological Survey as Component 9) consists of 1,474 black-and-white aerial photographs (1,472 unique frames plus 2 duplicates) plus 2 index maps which serve as a finding aid for the photographs in the two sub-components of this collection -- DC Collection 1 and DC Collection 2. The photographs are 9 in. by 9 in. in size and cover Washington, DC and vicinity (including portions of Maryland and Virginia). The counties in Maryland covered by these aerial photographs are Anne Arundel, Howard, Montgomery, and Prince George's Counties. No date is printed on these photographs; however, based on features shown in the photographs, Maryland Geological Survey (MGS) estimates... Categories: Data, Image, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection Automated Sea Duck Counts from Aerial Imagery: Imagery Files These are the images associated with the project, including: (1) OriginalImages: original 863 images provided to West Inc from USFWS and others for model training; (2) YoloSliced: 1897 programmatically cropped original images used for training a YOLO Model (300 x 300 pixels); (3) OriginalImages_Box: 785 annotated images; (4) YoloSliced_Box: 1897 annotated sliced images. Categories: Data, Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ANIMALS/VERTEBRATES, BIOLOGICAL CLASSIFICATION, BIRDS, EARTH SCIENCE, Image, All tags... Science Keywords, Science Keywords, biota, completed, Fewer tags Model Domain A high spatial resolution storm surge model was developed for the YK Delta area to assess biological impacts of storm surges under current and future climates. Storm surges are expected to be more frequent and more severe in the YK Delta area due to climate change and sea level rise. The biological impacts in the YK Delta due to the changed storm surges could be extreme.The model was assessed with respect to measured water level data at the coast and, where available, spatial extent of inundation, for 6 storms from the period 1992 to 2011. In total, inundation projections from 9 historical storms (5 from the assessment + 4 others) were developed. For each storm, an spatial inundation index (time-integral of water... Categories: Data, Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ARCHAEOLOGICAL AREAS, ARCHAEOLOGICAL AREAS, Academics & scientific researchers, COASTAL AREAS, COASTAL AREAS, All tags... COASTAL HABITAT, COASTAL HABITAT, COASTAL LANDFORMS/PROCESSES, COASTAL LANDFORMS/PROCESSES, CONSERVATION, CONSERVATION, CULTURAL FEATURES, CULTURAL FEATURES, DELTAS, DELTAS, DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, EROSION, EROSION, ESTUARINE WETLANDS, ESTUARINE WETLANDS, FLOOD PLAIN, FLOOD PLAIN, FLOODING, FLOODING, FLOODS, FLOODS, FLOODS, FLOODS, Federal resource managers, HAZARD MITIGATION/PLANNING, HAZARD MITIGATION/PLANNING, INLETS, INLETS, INUNDATION, INUNDATION, Image, LACUSTRINE WETLANDS, LACUSTRINE WETLANDS, LANDSCAPE PROCESSES, LANDSCAPE PROCESSES, LCC Network Science Catalog, LOCAL SUBSIDENCE TRENDS, LOCAL SUBSIDENCE TRENDS, MARSHES, MARSHES, MODELS, MODELS, PALUSTRINE WETLANDS, PALUSTRINE WETLANDS, PEATLANDS, PEATLANDS, PERMAFROST, PERMAFROST, SALINITY, SALINITY, SALTWATER INTRUSION, SALTWATER INTRUSION, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEA LEVEL RISE, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SEVERE STORMS, SEVERE STORMS, STORM SURGE, STORM SURGE, STORM SURGE, STORM SURGE, STORMS, STORMS, Tribes, VEGETATION, VEGETATION, VEGETATION COVER, VEGETATION COVER, VULNERABILITY LEVELS/INDEX, VULNERABILITY LEVELS/INDEX, Western Alaska Landscape Conservation Cooperative data.gov, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, elevation, elevation, environment, environment, geoscientificInformation, geoscientificInformation, oceans, oceans, Fewer tags Quad-Based Aerial Photographs, 1936-1991 This collection (known internally at Maryland Geological Survey as Component 5) consists of 4,720 items – 4,715 black-and-white aerial photographs (4,688 unique frames plus 27 duplicates) and 5 associated index maps. The aerial photographs were flown or acquired by the U.S. Geological Survey (USGS) and organized on a 7.5-minute quadrangle basis. The photographs are black-and-white and approximately 9 in. x 9 in. in size. The scale of the aerial photography varies but ranges from approximately 1:12,000 to 1:35,400. These photographs date from 1936-1991 and were donated to the Maryland Geological Survey (MGS). The index maps serve as a finding aid for several of the flight series flown over five quadrangles... Categories: Data, Image, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection Historical Aerial Photographs of Maryland, 1937-1990, County Collection The "Historical Aerial Photographs of Maryland, 1937-1990, County Collection" consists of black and white aerial photos (9"x9", 1:20,000-scale) from several time periods: 1937-1938, 1949, 1951-1953, 1957, 1961-1964, 1968, 1970-1972, 1979-1981, and 1983-1990. These photographs were usually flown or otherwise acquired by the U.S. Department of Agriculture (USDA), the U.S. Geological Survey (USGS), or the private firm Air Photographics, Inc. (API). USDA and USGS photographs were donated to the Maryland Geological Survey (MGS), mainly by the Maryland State Highway Administration (SHA). MGS purchased the copyrighted API photographs. Due to copyright limitations, the public may view the paper API photographs but... Categories: Data, Image, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection Map of snow condition monitoring sites installed as a result of this project. Map of snow condition monitoring sites installed as a result of this project. Categories: Data, Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, ECOLOGICAL DYNAMICS, ECOLOGICAL DYNAMICS, FREEZE/THAW, FREEZE/THAW, All tags... Federal resource managers, Image, LCC Network Science Catalog, SNOW, SNOW, SNOW DENSITY, SNOW DENSITY, SNOW DEPTH, SNOW DEPTH, SNOW/ICE, SNOW/ICE, State agencies, Western Alaska Landscape Conservation Cooperative data.gov, boundaries, boundaries, climatologyMeteorologyAtmosphere, climatologyMeteorologyAtmosphere, completed, environment, environment, location, location, Fewer tags MD Barrier Island Aerial Photographs (Enlargements), 1952-1964 This collection (known internally at Maryland Geological Survey as Component 2) consists of 505 enlargements of unrectified, black-and-white aerial photographs flown along Maryland's barrier islands during 13 different time periods (or "sets") between October 1952 and July 1964. Each of the photographs in the collection is about 2 feet x 2 feet in size. Some of the photographs have a scale of 1:14,400 or 1:6,000 stamped on the front. On the backs of many of the photographs is another stamp of "1" = 200 ft". The photographs cover the Maryland section of two narrow barrier islands that lie along Maryland's Atlantic coast, separated by the Ocean City Inlet: Fenwick Island to the north and Assateague Island to the... Categories: Data, Image, Physical Item; Types: Collection, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ndc_collection