53 datasets found
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Federal
Phosphorus, nitrogen, carbon, calcium, pH, and dissolved oxygen data from incubations of Colorado River water and sediment and associated ambient river water measurements recent views
Department of the Interior —
Lake Powell retains most of the phosphorus that it receives, leading to downstream phosphorus limitation. These data were compiled to examine controls on phosphorus... -
Federal
Experimental Results for Colloidal Borescope Flowmeter recent views
Department of the Interior —
The colloidal borescope flowmeter (HB) used in this testing was developed by AquaVISION, Llc. The instrument employs a charge-coupled device camera, an optical... -
Federal
Dataset establishing garnet stability in arc basalt, andesite, and dacite – an experimental study recent views
Department of the Interior —
These data are geochemical analyses of phase equilibria experiments. -
Federal
Laboratory Assessment of Colloidal Borescope and Heat-Pulse Flowmeters in Measuring Horizontal Flow in Fractured-Rock Simulators recent views
Department of the Interior —
The U.S. Geological Survey (USGS), at the request of the U.S. Army Environmental Command (USAEC), evaluated the capabilities of two borehole technologies to measure... -
Federal
2D micromodel studies of pore-throat clogging by pure fine-grained sediments and natural sediments from NGHP-02, offshore India recent views
Department of the Interior —
Fine-grained sediments, or “fines,” are nearly ubiquitous in natural sediments, even in the predominantly coarse-grained sediments that host gas hydrates. Fines... -
Federal
Sedimentation Rate Dependence on Pore Fluid Chemistry for Sediment Collected From Area B, Krishna-Godavari Basin, During India's National Gas Hydrate Program Expedition NGHP-02 recent views
Department of the Interior —
One goal of the Indian National Gas Hydrate Program's NGHP-02 expedition was to examine the geomechanical response of marine sediment to the extraction of methane... -
Federal
Water level and velocity measurements from the 2012 University of Western Australia Fringing Reef Experiment (UWAFRE) recent views
Department of the Interior —
This data release contains water level and velocity measurements from wave runup experiments performed in a laboratory flume setting. Wave-driven water level... -
Federal
Experimental Results for Heat-Pulse Flowmeter recent views
Department of the Interior —
The heat-pulse flowmeter (HH) used in this testing is a KVA Model 200 system. The instrument computes groundwater vectors from heat arrival and decay in an array of... -
Federal
Proximal and distal factors associated with the decline in secondary invertebrate prey production in the Colorado River, Glen Canyon, Arizona. recent views
Department of the Interior —
Using a bioenergetic model, demographic data for the Rainbow Trout (Oncorhynchus mykiss) population were compiled and used to estimate total prey consumption in the... -
Federal
Stable Isotopic Data (δ13C and δ2H) for Reference Materials HCG-1, HCG-2, and HCG-3 recent views
Department of the Interior —
Stable carbon and hydrogen isotopic data generated by off-line preparation and dual inlet mass spectrometric analysis used the determine the recommended values for... -
Federal
Arrowweed (Pluchea sericea) morphological and physiological response data from a greenhouse inundation experiment recent views
Department of the Interior —
These data were collected to evaluate if arrowweed (Pluchea sericea) individuals and genotypes collected from across a 5.3 degree Celsius temperature gradient and... -
Federal
Laboratory Observations of Variable Size and Shape Particles-Artificial Sand and Oil Agglomerates: June 2017 Velocity Data recent views
Department of the Interior —
Following marine oil spills, weathered oil can mix with sediment in the surf zone and settle to the seafloor to form mats up to hundreds of meters long. Wave action... -
Federal
Down-looking camera images of round goby (Neogobius melanostomus) within constructed sand and cobble habitats in laboratory microcosms Nov. 2021 – Jan. 2022 recent views
Department of the Interior —
These data include down-looking images of round goby (Neogobius melanostomus) in either cobble or sand substrates within clear acrylic enclosures (0.86-meters (m)... -
Federal
Characteristic Settling Time and Interface Height Dependence on Pore Fluid Chemistry for Sediment Collected From Area B, During India's National Gas Hydrate Program Expedition NGHP-02 recent views
Department of the Interior —
One goal of the Indian National Gas Hydrate Program's NGHP-02 expedition was to examine the geomechanical response of marine sediment to the extraction of methane... -
Federal
Microbial Populations in PFHxSAm (perfluorohexane sulfonamido propyl amine) Biodegradation Microcosms recent views
Department of the Interior —
Water resources around the world are contaminated with per- and polyfluoroalkyl substances (PFAS) due to releases from point sources on military installations, fire... -
Federal
Brown treesnake (Boiga irregularis) scanning and behavioral data collected in experimental setup in Guam for testing remote PIT-tag reader recent views
Department of the Interior —
Data fall into three types: 1) individual snake scanning data (PIT tag ID, time stamp, and device) downloaded from readers, 2) individual trait data (sex, size, etc)... -
Federal
Plant trait and soil moisture data associated with ontogenetic trait shifts - seedlings display high trait variability during early stages of development recent views
Department of the Interior —
These tabular data were compiled to document how key plant trait values change during plant development, particularly seedling stages, and in relation to soil... -
Federal
Laboratory Observations of Variable Size and Shape Particles-Artificial Sand and Oil Agglomerates: November 2016 Video Data recent views
Department of the Interior —
Following marine oil spills, weathered oil can mix with sediment in the surf zone and settle to the seafloor to form mats up to hundreds of meters long. Wave action... -
Federal
Laboratory Observations of Artificial Sand and Oil Agglomerates Video and Velocity Data: Sea Floor Interaction Experiment Flow Velocity recent views
Department of the Interior —
Weathered oil in the surf-zone after an oil spill may mix with suspended sediments to form sand and oil agglomerates (SOA). Sand and oil agglomerates may form in mats... -
Federal
Data acquired in laboratory experiments conducted with the stonefly Zapada sp. and the ephemerellid mayflies Drunella sp. and Ephemerella tibialis to characterize uptake and surface adsorption after short aqueous exposures to uranium, 2017-2019 recent views
Department of the Interior —
Little is known about the underlying mechanisms governing uranium (U) bioaccumulation in aquatic insects, especially the influence of surface adsorption on the...
53 datasets found