All Data
Explore all data by the topics and refine type to find the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
Filter Total Items: 16518
Geospatial datasets developed for a groundwater-flow model of the Denver Basin aquifer system, Colorado Geospatial datasets developed for a groundwater-flow model of the Denver Basin aquifer system, Colorado
In 2004, the U.S. Geological Survey initiated a large-scale regional study of the Denver Basin aquifer system to evaluate the hydrologic effects of continued pumping and document an updated groundwater-flow model useful for appraisal of hydrologic conditions (Paschke, 2011). This data release includes spatial datasets used as input for a three-dimensional groundwater-flow model of the...
Data for The Occurrence and Distribution of Strontium in U.S. Groundwater Data for The Occurrence and Distribution of Strontium in U.S. Groundwater
Water-quality data for groundwater samples collected from 4,824 sites between 1991 through 2018, and ancillary data and information on sampled wells and principal aquifers, were used to assess the occurrence and distribution of strontium in U.S. groundwater from 32 principal aquifers. This data release includes one tab-delimited text file detailing these data. Table: Chemical data from...
Airborne Magnetic Total-Field Survey, Iron Mountain-Menominee Region, Michigan-Wisconsin, USA Airborne Magnetic Total-Field Survey, Iron Mountain-Menominee Region, Michigan-Wisconsin, USA
This data release includes the airborne magnetic survey data collected from the Iron Mountain-Menominee region of Michigan and Wisconsin. The Mineral Resources Program of the U.S. Geological Survey is tasked with understanding the nation's mineral resources. Precambrian rocks in the region are poorly mapped and understood. Detailed high-resolution airborne magnetic surveys, ground...
Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018 Airborne magnetic survey, Iron Mountain-Chatham region, central Upper Peninsula, Michigan, 2018
This publication provides digital flight line data for a high-resolution magnetic survey over an area of the central Upper Peninsula of Michigan. The survey area lies approximately between the towns of Iron Mountain and Chatham. Data for this survey were collected by EON Geosciences under contract with the USGS using a fixed wing aircraft with a magnetometer mounted in the tail stinger...
Near-bed velocity measurements in Monterey Bay during arrival of the 2010 Chile Tsunami Near-bed velocity measurements in Monterey Bay during arrival of the 2010 Chile Tsunami
On February 27, 2010, a tsunami originating near Chile arrived in Monterey Bay, California. This data release comprises two hours of pressure and near-bed velocity data spanning the largest tsunami waves. At the time, the U.S. Geological Survey Pacific Coastal and Marine Science Center had a remotely-controlled instrumented platform deployed adjacent to the Santa Cruz Municipal Wharf...
Northwestern Hawaiian Islands Laysan duck survival 1998-2018 Northwestern Hawaiian Islands Laysan duck survival 1998-2018
Monitoring demographic response over time is valuable for understanding population dynamics of endangered species. We quantified the variation in survival patterns for three small isolated island populations of endangered Laysan ducks (Anas laysanensis; also called Laysan teal) in the Hawaiian Archipelago using data from individually marked birds. Using the median or maximum resight...
Data for machine learning predictions of pH in the glacial aquifer system, northern USA Data for machine learning predictions of pH in the glacial aquifer system, northern USA
A boosted regression tree (BRT) model was developed to predict pH conditions in three-dimensions throughout the glacial aquifer system (GLAC) of the contiguous United States using pH measurements in samples from 18,258 wells and predictor variables that represent aspects of the hydrogeologic setting. Model results indicate that the carbonate content of soils and aquifer materials...
Temperature and light measurements along the water-depth profile of ponds in North Dakota, USA, 2019 Temperature and light measurements along the water-depth profile of ponds in North Dakota, USA, 2019
This data release presents data that were collected as part of a larger effort to assess factors that regulate thermal stratification and mixing in small ponds. This work was part of an international collaborative effort with the Global Lake Ecological Observatory Network (GLEON). From May to October 2019, temperature and light were measured throughout the water-depth profile of two...
Isotopic data for soil cores collected during 2000 from Sand Lake National Wildlife Refuge, South Dakota Isotopic data for soil cores collected during 2000 from Sand Lake National Wildlife Refuge, South Dakota
A study was conducted to assess the vertical accretion of sediment in the Mud Lake impoundment of Sand Lake National Wildlife Refuge, located in Brown County, South Dakota. Sediment cores were collected from the Mud Lake impoundment during 2000 for determination of vertical accretion rates, which were estimated using cesium-137 and lead-210 isotopic dating techniques. These data directly...
Using Targeted Training Data to Develop Site Potential for the Upper Colorado River Basin from 2000 - 2018 Using Targeted Training Data to Develop Site Potential for the Upper Colorado River Basin from 2000 - 2018
Defining site potential for an area establishes its possible long-term vegetation growth productivity in a relatively undisturbed state, providing a realistic reference point for ecosystem performance. Modeling and mapping site potential helps to measure and identify naturally occurring variations on the landscape as opposed to variations caused by land management activities or...
Data for Continental-Scale Dispersal of Antimicrobial Resistant Bacteria by Alaska Landfill-Foraging Gulls Data for Continental-Scale Dispersal of Antimicrobial Resistant Bacteria by Alaska Landfill-Foraging Gulls
This data set includes information on collections of fecal samples from wild gulls (Larus spp.) at seven locations in Alaska, USA. Samples were screened for Escherichia coli (E. coli) and tested for resistance to multiple antibiotics.
Continuous gravity data from K?lauea Volcano, Hawai?i Continuous gravity data from K?lauea Volcano, Hawai?i
This Data Release contains continuous gravity records from two instruments on Kilauea Volcano, Hawaiʻ'i the HOVL gravimeter, located on the east rim of Halema'uma'u Crater directly above the 2008-2018 summit eruptive vent, and the PUOC gravimeter, located on northern rim of Puu Oo crater on Kīlauea's East Rift Zone. Both instruments were collocated with GNSS stations. The HOVL gravimeter...