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Orthomosaic of Semisopochnoi Island, Alaska from Historical Aerial Photographs Orthomosaic of Semisopochnoi Island, Alaska from Historical Aerial Photographs
This data release provides a single 8-bit grayscale GeoTIFF orthomosaic of Semisopochnoi Island, in Aleutian Archipelago of Alaska (georeferenced in NAD 1983 UTM Zone 60N; EPSG:3373). The orthomosaic was derived from 31 black and white single frame aerial photographs taken in 1952. Also included are the non-georeferenced scans of the original aerial photographs.
Aeromagnetic and gravity surveys of the Skaergaard intrusion in East Greenland, 1971 Aeromagnetic and gravity surveys of the Skaergaard intrusion in East Greenland, 1971
Aeromagnetic and gravity surveys of the Skaergaard intrusion in East Greenland were carried out in July–August 1971 as part of a grant to the University of Oregon Center for Volcanology to further study the intrusion to refine the models of crystallization of the body. The total-intensity aeromagnetic survey was flown in early July 1971 at constant barometric altitude of 1.5 km (5000 ft)...
Soil water balance, groundwater flow, and stream temperature models for Beaver Creek, Alaska, 2019 to 2050 Soil water balance, groundwater flow, and stream temperature models for Beaver Creek, Alaska, 2019 to 2050
A combined soil water balance, groundwater flow and stream temperature model was developed to simulate stream temperature under historical and future conditions. Soil-Water-Balance code was used to estimate net infiltration past the root zone and surface runoff, which were applied to a transient, three-dimensional MODFLOW 6 model to simulate the water budget for Beaver Creek and the...
Biological, Hydrological, Water Quality, and Land Use Data Inputs for Alabama Ecohydrology Study (10-01-1999 to 09-30-2014) Biological, Hydrological, Water Quality, and Land Use Data Inputs for Alabama Ecohydrology Study (10-01-1999 to 09-30-2014)
The effects of high- and low-flow conditions on biological communities in Alabama streams were investigated by utilizing data on benthic macroinvertebrates, fish communities, hydrology, land use, and water quality. Biological data from streams and rivers in the Mobile River basin and other Gulf Coast drainages was collected from 278 sites between 1999 and 2014. These sites' upstream...
Elevation Data from Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2024 Elevation Data from Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2024
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has been collecting topographic data annually since 2012 at 10 study areas along Fountain Creek, Colorado. The 10 study areas are located along Fountain Creek between Colorado Springs and the confluence of Fountain Creek and the Arkansas River in Pueblo. This data release presents topographic survey data, Light...
Data Release: Bee and plant inventory data from four national parks in Maryland and Virginia, USA, 2021–2022 Data Release: Bee and plant inventory data from four national parks in Maryland and Virginia, USA, 2021–2022
This data release is for all native bee and plant records collected at four national parks in Maryland and Virginia, 2021 and 2022. The purpose of the study was to document the floral resources and native bees that depend on them within variously-managed park grasslands, with the goal of providing managers with information that will help them maximize pollinator habitat while...