Results 1 to 10 of about 5,253,598 (403)

Leveraging Existing Technology: Developing a Trusted Digital Repository for the U.S. Geological Survey

open access: yesInternational Journal of Digital Curation, 2021
As Federal Government agencies in the United States pivot to increase access to scientific data (Sheehan, 2016), the U.S. Geological Survey (USGS) has made substantial progress (Kriesberg et al., 2017).
Vivian B. Hutchison   +6 more
doaj   +1 more source

Keynote lecture. Forecasting the inundation of postfire debris flows [PDF]

open access: yesE3S Web of Conferences, 2023
In the semi-arid regions of the western United States, postfire debris flows are typically runoff generated. The U.S. Geological Survey has been studying the mechanisms of postfire debris-flow initiation for multiple decades to generate operational ...
Barnhart Katherine R.   +4 more
doaj   +1 more source

A tale of two valleys: endangered species policy and the fate of the giant gartersnake

open access: yesCalifornia Fish and Wildlife Journal, 2021
By the mid-20th Century, giant gartersnakes (Thamnophis gigas) had lost more than 90% of their Central Valley marsh habitat and were extirpated from more than two-thirds of their range.
Brian J. Halstead   +10 more
doaj   +1 more source

Ecological and human health risk assessment of heavy metal(loid)s in agricultural soil in hotbed chives hometown of Tangchang, Southwest China

open access: yesScientific Reports, 2022
To determine the heavy metal(loid)s (HMs) contamination of agricultural soil in hotbed chives hometown of Tangchang, 788 topsoil samples were collected and analyzed for their heavy metal(loid)s concentration.
Cang Gong   +7 more
doaj   +1 more source

Water-Data Report 2008 [PDF]

open access: yes, 2008
This data sheet includes daily mean discharge data from Waller Creek at Koenig Lane from July 2007 to September 2008.Surface water records for USGS station at Waller Creek and Koenig LaneWaller Creek Working ...
U.S. Geological Survey
core   +1 more source

Water-Data Report 2013 [PDF]

open access: yes, 2013
The report provides a brief overview of daily water discharge over the course of a year at Waller Creek at Koenig Lane. Water year data from 2007 to 2013 is also included.Surface water records for USGS station at Waller Creek and Koenig LaneWaller Creek ...
U.S. Geological Survey
core   +1 more source

Discrimination of topsoil environments in a karst landscape: an outcome of a geochemical mapping campaign

open access: yesGeochemical Transactions, 2020
The study presented in this work emerged as a result of a multiyear regional geochemical survey based on low-density topsoil sampling and the ensuing geochemical atlas of Croatia.
Ozren Hasan   +6 more
doaj   +1 more source

Experimental Study on the Propagation Characteristics of Hydraulic Fracture in Clayey-Silt Sediments

open access: yesGeofluids, 2021
The low permeability of clayey-silt hydrate reservoirs in the South China Sea affects the thermal and pressure conductivity of the reservoir, which is difficult to spread to the far end of the wellbore and achieve commercial gas production.
Cheng Lu   +8 more
doaj   +1 more source

Data Report: Molecular and Isotopic Compositions of the Extracted Gas from China’s First Offshore Natural Gas Hydrate Production Test in South China Sea

open access: yesEnergies, 2018
Three hundred gas samples recovered from SHSC-4 during China’s first gas hydrate production test in the South China Sea were examined for gas component and isotopic composition. According to the gas chromatography analysis, all the gas samples from
Jianliang Ye   +10 more
doaj   +1 more source

Assessment of Energy Potential and Benefit under the Ground Source Heat Pump Air Conditioning System in Anqing Area of Eastern China

open access: yesGeofluids, 2021
Now ground source heat pump is a more efficient way to develop and utilize shallow geothermal energy because it is clean and environmentally friendly and has a relatively low energy cost.
Qing Zhang   +6 more
doaj   +1 more source

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