Data

A campaign microgravity network was established between Vancouver, Washington, and Mount Hood, Oregon, in 2021 and has been measured at least annually, and sometimes more often, in subsequent years. The purpose of the network is to assess changes in gravimeter calibration, as well as to monitor potential gravity changes related to subsurface magmatic or hydrothermal processes at Mount...

A campaign microgravity network was established at Yellowstone Caldera, Wyoming, in 2017 as a subset of stations that were initially measured in 1977. The network has been measured subsequently on a quasi-annual basis to assess changes in gravity over time that may be related to subsurface magmatic or hydrothermal processes. This data release includes microgravity data collected by the U...

These data support a long term demography study examining the occupancy, abundance, growth, capture, and survival of giant gartersnakes (Thamnophis gigas). We captured giant gartersnakes inhabiting rice irrigation canals, tidal sloughs and freshwater marshs in the Central Valley, California, USA. Data also include giant gartersnake morphometric data, trapline characteristics...

Approximately 3 to 4 kg of NBS 19 limestone, prepared in 1982 by the U.S. Geological Survey (USGS), serves as a primary reference for the carbon isotope scales VPDB and VPDB-LSVEC and the oxygen isotope scale VPDB. Its consensus values are +1.95 ‰ for δ¹³C and –2.2 ‰ for δ¹⁸O measurements. After more than three decades of distribution, the number of units labeled “NBS 19” shrunk...

In this data release we present zircon U-Pb ages and εHf(t), feldspar 40Ar/39Ar ages, and whole rock major and trace elemental abundances to constrain the Morrowan-Atokan Boundary, the timing of onset of high-frequency cycles and the redox and salinity changes associated with rapidly changing depositional environments within the Arkoma Basin. Zircon and sanidine data were collected from...

This dataset contains a systematic compilation of catch-and-release mortality estimates for freshwater fishes in lotic (riverine) environments extracted from published studies spanning 1978-2022. We reviewed 74 lotic catch-and-release studies across six biogeographic realms, 30 freshwater ecoregions and eight major habitat types, and derived 76 quantitative mortality estimates from 50 of...

Reservoir outflows and downstream water temperatures in the Willamette River Basin, Oregon, are influenced by the operation of 13 U.S. Army Corps of Engineer (USACE) dams that comprise the Willamette Valley System (WVS). CE-QUAL-W2 models have been developed to simulate water release temperatures from a subset of WVS dams, and thermal effects to downstream reaches that may result from...

Ecological models facilitate evaluation of alternative approaches to restore the Greater Everglades ecosystem. However, the provision of useful and accessible models is a challenge because there is often a disconnect between model output and its use by decision makers. Joint Ecosystem Modeling (JEM) meets this challenge by providing ecological model output tailored to management...

The dataset lists specific activities of Cesium-137 in disintegrations per minute per gram (dpm per g) from 21 samples in the upper 33 centimeters of sediment core 22KAR-21A collected in Karluk Lake, Kodiak Island, Alaska.

These datasets includes physical and geochemical lab results of sediment samples collected from August 2017 to October 2018. Upland samples were collected at randomly selected sites in the watershed using the geographic information system (GIS) site-selection procedure. Three sets of passive suspended-sediment samplers were installed and sampled monthly. Streambank and streambed sediment...

These datasets includes physical and geochemical lab results of sediment samples collected from October 2016 to February 2018. Upland samples were collected at randomly selected sites in the watershed using the geographic information system (GIS) site-selection procedure. Passive suspended-sediment samplers were installed at three sites and sampled monthly. Streambank and streambed...

This dataset includes field and laboratory analyses of water samples collected from lakes, ponds, rivers, and streams in northwest Alaska within Cape Krusenstern National Monument, Noatak National Preserve, Kobuk Valley National Park, Gates of the Arctic National Park and Preserve, and Bering Land Bridge National Preserve. At sites across the five national park units, in situ water...