Data Releases

The preliminary bedrock geologic map database of the 7.5-minute Port Henry quadrangle consists of deformed and metamorphosed Mesoproterozoic gneisses of the Adirondack Highlands unconformably overlain by weakly deformed lower Paleozoic sedimentary rocks of the Champlain Valley (fig. 1) on the published geologic map. The Mesoproterozoic rocks occur on the eastern edge of the Adirondack...

This data release contains site location information, environmental DNA (eDNA) data, and fish capture data from round goby (Neogobius melanostomus) surveys conducted on parts of the Schoharie Creek, New York, during 2024 and 2025. Data were collected in two phases. During Phase 1 (March–July 2024), a rapid assessment of the round goby invasion front (furthest upstream extent of the...

These data were compiled for the U.S. Navy and U.S. Fish and Wildlife Service and consist of summary counts at selected population monitoring sites for the Island Night Lizard (Xantusia riversiana), and measurement data (body length, mass) for calculating an index of body condition. Objectives of this study were to provide long-term population trend and health and condition data to the U...

Regression models for estimating suspended sediment concentration (SSC) and loads were developed using the R package rloadest for U.S. Geological Survey streamgage Snake River at Weiser, Idaho (13269000). Samples for suspended sediment concentration were collected in two periods: the historical (1977-2003) and modern (2017-22) periods. Data and metadata for all samples collected at this...

Toxic harmful algal blooms are caused by cyanobacteria and can pose a threat to freshwater ecosystems, including the western basin of Lake Erie. Bloom toxicity can be influenced by variation of biosynthetic repertoires of toxic cyanobacteria but is not well studied beyond microcystins. Water samples collected by the National Oceanic and Atmospheric Administration from July 2016 through...

In several early studies, central California marine terraces between Santa Barbara and Point Conception were interpreted to record sea-level high stands of the last interglacial complex, ~80 ka to ~120 ka (marine isotope stage [MIS] 5). These ages and their elevations (~20 m to ~45 m) indicate modest rates of tectonic uplift, similar to those from other localities in southern and central

This data release provides digital geospatial data related to the three-dimensional geologic model (Hosford Scheirer, 2013) that was used as a framework for conducting the 2003 oil and gas assessment of the San Joaquin Basin province, California (Gautier and others, 2004; Hosford Scheirer, ed., 2007). The data release includes raster GeoTIFF files of the tops of the 15 composite geologic...

This model archive makes available the Soil-Water-Balance (SWB) model used to simulate potential recharge for the Saco Headwaters Watershed. This model was used to simulate potential recharge (net infiltration) for use in a groundwater model in the same region to understand the effects of water bottling. The model was used to produce a historical simulation (2000 -2021) and a series of...

A MODFLOW 6 groundwater model for the Wards Brook aquifer in New Hampshire and Maine was developed to understand the effects of groundwater withdrawals for historical and potential future conditions. The model assesses how groundwater withdrawals, including for bottled water, affect base flows from Wards Brook, groundwater levels, and pond levels under different scenarios. Model runs...

This is a catalogue of the earthquake data recorded during the 2023 Kīlauea Seismic Imaging Experiment by a consortium of government and academic scientists under the auspices and with the coordination of the U.S. Geological Survey (USGS) and the National Park Service at Hawai'i Volcanoes National Park. Steve Roecker (Rensselaer Polytechnic Institute) produced this catalogue and then...

This data release from the U.S. Geological Survey (USGS) presents the results of radiometric analyses conducted on sediment samples collected in 2016 and 2019 from Pahranagat Wash, behind Arrow Canyon Dam in northern Clark County, Nevada. In 2016, core samples were collected from two well sites: USGS 364453114483401 (ACWEST) and USGS 364448114481001 (ACEAST). Additionally, a shallow...

This data release comprises geospatial data of historical shoreline positions and long-term (greater than 60 years) and short-term (less than 40 years) rate of change statistics from the west coast of Alaska from Cape Prince of Wales to Kotlik River for the years 1949 to 2015.