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Overflight structure-from-motion digital elevation model and orthophotos of Shishaldin Volcano, Alaska, 2024 Overflight structure-from-motion digital elevation model and orthophotos of Shishaldin Volcano, Alaska, 2024
The Alaska Volcano Observatory conducted overflights of Shishaldin Volcano, Alaska, in July–August 2024 to characterize the morphological changes to the summit area following the 2023 and 2019–2020 eruptions. Oblique airphotos were taken during helicopter overflights on July 30 and August 1. The photos were processed with structure-from-motion (SfM) photogrammetric methods to derive a...
Campaign microgravity data from Mount Hood, Oregon Campaign microgravity data from Mount Hood, Oregon
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 dataset of hydrologic extremes transitions across the conterminous United States, 1981–2024 A dataset of hydrologic extremes transitions across the conterminous United States, 1981–2024
This data release provides datasets for the conterminous United States (CONUS), characterizing rapid transitions between hydrological extremes, drought-to-flood (DtF) and flood-to-drought (FtD), over 1981–2024. The datasets include event catalogs, transition catalogs, and comparison tables used to assess prevalence, timing, rapidity, and impactfulness of hydrologic transitions and their...
Integrated streamflow, water presence, and meteorological drivers for stream network modeling in the HJ Andrews Experimental Forest Integrated streamflow, water presence, and meteorological drivers for stream network modeling in the HJ Andrews Experimental Forest
This data release provides integrated datasets for modeling streamflow and water presence across the HJ Andrews Experimental Forest stream network in western Oregon. The data include daily meteorological drivers from GRIDMET (precipitation, temperature, humidity, radiation, wind speed, evapotranspiration, vapor pressure deficit), observations of stream discharge and wet/dry status from...
Laboratory-based optical measurements for water samples collected from fixed monitoring stations within the Upper Colorado River and Illinois River basins Laboratory-based optical measurements for water samples collected from fixed monitoring stations within the Upper Colorado River and Illinois River basins
Surface water samples were collected from two basins included in the Next Generation Water Observing System network. Six sites were within the Upper Colorado (UCOL) basin, of which three sites (Fraser River at Tabernash, 09027100; Colorado River at Windy Gap, 09034250; Colorado River near Cameo, 09095500) were equipped with Turner Designs C6P fluorometers for continuous fluorescence...
Biological and Chemical Findings Associated with Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus from Selected Northeast United States and Quebec Waterbodies Biological and Chemical Findings Associated with Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus from Selected Northeast United States and Quebec Waterbodies
Brown bullhead were collected from seven sites in Lake Memphremagog in Vermont and Quebec, Hermon Pond in Maine and Village Pond in New Hampshire. Both visibly normal and lesioned adult bullhead were collected at each site. Biological data collected included length, weight, sex, age, condition factor and presence or absence of non-raised and raised black lesions. Plasma from five sites...