cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5066/f7w37tc7
title: Data for Groundwater Age and Susceptibility of Poorly Consolidated Sedimentary Aquifers of the United States Gulf Coast: Results from the Southeast Coastal Plain (SECP), Coastal Lowland (CLOW), Mississippi Embayment and Texas Coastal Upland (METX) Principal Aquifer Networks

description: This data release documents eight Microsoft Excel tables; four which contain data for understanding groundwater ages in the South East Coastal Plain (SECP), Coastal Lowlands (CLOW) and Mississippi Embayment and Texas Coastal Uplands (METX) aquifer systems and four that describe the data fields. Results described include dissolved gas modeling results, environmental tracer concentrations (tritium, tritiogenic helium-3, sulfur hexafluoride, and radiogenic helium-4), mean age and age distribution, and carbon-14 geochmical modeling results Dissolved gas modeling results (DGmodel) contains detailed information on the calibration of dissolved gas models to dissolved gas concentrations (neon, argon, krypton, xenon, and nitrogen). Calibration was done using methods described by Aeschbach-Hertig and others (1999) with modifications to include nitrogen gas (Weiss 1970). In most cases, a single set of noble gas data (neon, argon, krypton, and xenon) were used to determine recharge conditions (recharge temperature, excess air or entrapped air, fractionation). In cases where noble gas data were not available, multiple analyses of nitrogen and argon (collected sequentially on the same sample date) were used to determine recharge conditions. Environmental tracer results (Tracers) contain detailed information on calculations of environmental tracer data. Dissolved gas models were paired with sulfur hexafluoride and helium isotopes (3He/4He) and helium to determine concentrations of tritiogenic helium-3 (from decay of tritium; Solomon and Cook, 2000) and radiogenic helium-4 (from decay of uranium and thorium in aquifer materials; Solomon, 2000). Multiple tracer concentrations were computed when sites had multiple dissolved gas model results and analyses for sulfur hexafluoride or helium isotopes. Mean age and age distribution results (TracerLPM) contain final models of groundwater age by calibration of lumped parameter models to tracer concentrations (Jurgens and others, 2012). In cases where age was modeled with a binary lumped parameter model (BMM), the mean age was computed from the mean age and fraction of the two components in the mixture. Additional results for select sites, identified with a "-1" or "-2" suffix to USGS Station ID, detail the estimated range corrected 14C activity and groundwater mean age as a result of uncertainty in 14C geochemical correction. Please see the processing steps below and the main manuscript for additional details on the results presented in this table. Carbon-14 geochmical modeling results (Carbon14) contain input paramters and final gechmical models of carbon-14. Please see the processing steps below and the main manuscript for additional details on the results presented in this table.
DOI: 10.5066/p9suxlc8
title: Data for assessing the status of resident fish communities in the Eighteenmile Creek Area of Concern, New York

description: The dataset is composed of two data tables containing information from boat electrofishing surveys of two tributaries to Lake Ontario, Eighteenmile Creek and Oak Orchard Creek during June 2019. The first data table contains fish collection information and the second data table contains information on the sampled reaches.
DOI: 10.5066/p95wq7tm
title: Soil Water Balance (SWB) Model of Keyport, Washington

description: This archive documents a Soil Water Balance (SWB) model of the Naval Base at Keyport, Washington and immediate surrounding environs. The SWB model is used to estimate hydrological processes of a water budget including interception, evapotranspiration, surface runoff, etc.) for the Keyport area during January 1980 - December 2015.
DOI: 10.5066/f7k936gw
title: Revised Data and Supporting Information for Seven Sites located on the Lower Mississippi and Atchafalaya Rivers sampled as part of a cooperative sediment program with the U.S. Army Corps of Engineers, October 1989 through February 2015

description: Suspended-sediment concentration, percent by mass finer than 0.0625 millimeters, instantaneous stream discharge, and suspended-sediment discharge for seven sites in the Lower Mississippi-Atchafalaya River Basin have been revised following a program review. This dataset provides the pre- and post-review revised values, along with supporting information as described in the associated publication (Norton and others, 2018). Data are included for October 1989 through February 2015 at seven sites, represented by nine sampling stations. The stations are located near the Old River Control Complex and the lower Atchafalaya River. The original data were collected as part of a cooperative program between the U.S. Geological Survey and the U.S. Army Corps of Engineers, New Orleans District.
DOI: 10.5066/p9hb5s5f
title: USGS Measurements of Dissolved and Suspended Particulate Material Selenium in Lake Koocanusa in the Vicinity of Libby Dam (MT), 2015-2017 (update)

description: The U.S. Geological Survey is studying Lake Koocanusa, a border reservoir between British Columbia in Canada and Montana, in collaboration with the Montana Department of Environmental Quality and the U.S. Environmental Protection Agency (Region 8). This work is part of a multi-agency project to apply an ecosystem-scale selenium modeling methodology (Presser and Luoma, 2010) to the lake to support development of site-specific selenium guidelines for the protection of aquatic life. A conceptual model framework was published in 2017 (Jenni, Naftz, and Presser, 2017) to serve as a coherent and consistent structure for organizing relevant scientific information, to provide an appropriate context for interpreting new information as datasets and site parameters are developed, and to identify data and science gaps that limit understanding of the implications of alternative Se criteria. This Data Release makes available measurements taken in May, July, and October, 2015; April, May, July, and September, 2016; and monthly from April through October, 2017. Spatially and temporally matched sets of dissolved and suspended particulate material selenium concentrations were collected mainly at two locations (forebay and international boundary) and at two depths (epilimnion, 3 meters below lake surface; hypolimnion, 3 meters above lake bottom). In 2017, samples were additionally collected during June, July, and September at a site south of the Elk River inflow by the British Columbia Ministry of Environment & Climate Change Strategy. These data allow calculation of an environmental partitioning factor (i.e., Kd) between dissolved and suspended particulate material selenium concentrations as an initial modeling step. This Data Release contains 1) a location map; 2) a modeling schematic; 3) collection methods, analytical methods, and quality control information; 4) spreadsheets and graphical displays of selenium data; and 5) hydrological parameters related to sampling conditions at the lake. Also included is an example sampling matrix that illustrates the types of data needed within Lake Koocanusa to support robust ecosystem-scale selenium modeling. For this 2017 update of the Data Release, the same methodologies were followed as in 2016, except sampling occurred over seven consecutive months. This allowed documentation of a more detailed view of the dissolve and particulate selenium dynamics of Lake Koocanusa to help identify trends and connect to other ecological and management variables. This Data Release will be updated and modified if additional sampling and analysis takes place.
DOI: 10.5066/p9vlu0o6
title: Soil-Water Balance Groundwater Infiltration Model Results for the Lower Colorado River Basin

description: This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the Lower Colorado River Basin (LCRB). The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. There are 3 separate datasets associated with this Data Release: SWB model results from simulations run using projected climate data, summarized by month from 1950 through 2099, for the LCRB within the United States SWB model results from simulations run using projected climate data, summarized by month from 1950 through 2099, for the Grand Canyon region SWB model results from simulations run using projected climate data, summarized by month from 1950 through 2099, for the alluvial basins of Arizona.
DOI: 10.5066/p9a66fq4
title: Arsenic Speciation method performance data, species hold times data and supporting information

description: This dataset includes data collected to validate a method of analysis for arsenic species As(III), As(V), dimethylarsinate (DMA), and monomethylarsonate (MMA) in surface water and groundwater samples. It also includes site information and water chemistry for samples used in the validation and used for other studies of arsenic species in groundwater. It includes speciation data measured at multiple time points to establish or verify hold times and stability of As species in surface water and groundwater samples.
DOI: 10.5066/p9rcg43b
title: Sample mounting for organic petrology: no thermal effects from transient exposure to elevated temperatures (2019)

description: For sample mounting, organic petrology laboratories typically use cold-setting epoxy-resin (e.g., 40 degrees C, used by Oklahoma Geological Survey, OGS) or heat-setting plastic (e.g., 180 degrees C, used by U.S. Geological Survey, USGS). Previous workers have suggested a systematic vitrinite reflectance (VRo) increase was associated with the thermoplastic preparation process, relative to epoxy mounting, which was attributed to moisture loss from the transient high temperatures of plastic mounting. In this study, we evaluated thermal effects to low maturity organic matter from transient exposure to elevated temperatures. A subbituminous coal sample was subjected to long-term (4 to 38 weeks) exposure to temperatures of 85 to 120 degrees C and afterward evaluated by multiple approaches to test thermal advance [elemental analyses, Rock-Eval pyrolysis, Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), pyrolysis gas chromatography, and petrographic analyses, including vitrinite reflectance and spectral fluorescence], all of which showed no detectable systematic changes between the original sample and its heat-treated products. We also compared vitrinite reflectance of six low maturity samples (those most likely to react to transient heating) mounted via both cold-setting epoxyresin and heat-setting thermoplastic. Results indicate measured VRo of a sample prepared by one mounting process was within the standard deviation of reflectance for the same sample prepared via the other process. Moreover, VRo results were not systematically higher in thermoset mounts. Contrary to previous work, these results suggest thermoplastic mounting or other transient exposure to elevated temperatures does not impact thermal maturity estimates from reflectance measurement for low maturity organic samples. Furthermore, the average interlaboratory difference in measured VRo (between OGS and USGS) for the same sample prepared by either epoxy-resin or thermoset mounting was 0.038%, about double the average difference between VRo for the same sample prepared via epoxy-resin versus thermoset in a single laboratory (0.024%). This result indicates interlaboratory variability impacts interlaboratory VRo measurement reproducibility to the extent that systematic differences could not be observed between thermoplastic and cold-setting sample preparation approaches, even if such differences were present.
DOI: 10.5066/p9guz668
title: Pre-restoration biological and physical assessment of the lower Rouge River, MI, 2018

description: Data are from biological and physical environmental assessments conducted during 2018 in the lower Rouge River, MI. Sites were located upstream, downstream, and within the concrete channel section of the lower Rouge River. Water quality parameters, riparian zone characteristics, reptiles and amphibians, fishes, invertebrates, and river channel characteristics (water depth, flow, velocity) were assessed during 2018 from June-October. Previously established standardized sampling methods were used during all assessments.
DOI: 10.5066/f7qc02d4
title: Establishing a standard ploidy assessment method using grass carp from Ohio, 2015-2016

description: In 2015-2016, the Ohio Division of Wildlife's undercover law enforcement purchased 1,200 grass carp (Ctenopharyngodon idella). Fish heads and eyeballs were sent overnight to U.S. Geological Survey Wetland and Aquatic Research Center for ploidy analysis. Field and laboratory standard operating procedures were established and followed. Fish lengths, fish weights, and eyeball weights were obtained from the U.S. Fish and Wildlife Service's feral carp ploidy program for grass carp and black carp (Mylopharyngodon piceus) and the Ohio grass carp. Internal 2 micrometer or 4 micrometer bead standards were used in establishing nuclear sizes from Nile tilapia (Oreochromis niloticus), known diploid (n=20) and triploid (n=20) carp blood, as well as cells derived from eyeballs from intercepted carp. Cells from the fish eyes were obtained from an ocular blood vessel as well as the vitreous humor. Nuclei were stained with propidium iodide, internal bead standards were included, and three replicate tubes per fish were analyzed by flow cytometry. The external DNA content control was fresh or cryopreserve blood from tilapia, with a diploid genome size of 2.40 pg. This standard protocol uses nuclear size as well as DNA content for reliably discriminating ploidy of interstate hauled grass carp.
DOI: 10.5066/f7pn94xj
title: Site identification, location, temperature, and CO2 flux from diffuse emission measurement at the Tiptop coal mine fire, Kentucky (2009)

description: The dataset consists of site identification, location, temperature and CO2 flux from diffuse emission measurement at the Tiptop fire. A total of 40 CO2 flux measurements were made at 27 locations, including five points (seven measurements) outside of the active coal fire area.
DOI: 10.5066/p9lb8ij4
title: Testing reproducibility of vitrinite and solid bitumen reflectance measurements in North American unconventional petroleum systems (2019)

description: To test reproducibility of vitrinite and solid bitumen reflectance measurements in mudrocks, an interlaboratory study (ILS) was conducted using six samples from United States unconventional petroleum systems. Samples selected from the Marcellus, Haynesville, Eagle Ford, Barnett, Bakken and Woodford are representative of resource plays currently under exploitation in North America. All samples are from marine depositional environments, are thermally mature (Tmax greater than 445 degrees Celsius) and have moderate to high organic matter content (2.9 to 11.6 wt.% TOC). The organic matter of the sample is dominated by solid bitumen, which contains intraparticle nano-porosity. Visual evaluation of organic nano-porosity via SEM suggests that intraparticle organic nanopores are most abundant in dry gas maturity samples and less abundant at lower wet gas/condensate and peak oil maturities. Samples were distributed to ILS participants in forty laboratories in the Americas, Europe, Africa and Australia; thirty- seven independent sets of results were received. Mean vitrinite reflectance (VRo) values from ILS participants range from 0.90 to 1.83% whereas mean solid bitumen reflectance (BRo) values range from 0.85 to 2.04% (no outlying values excluded), confirming the thermally mature nature of all six samples. Using multiple statistical approaches to eliminate outlying values, we evaluated reproducibility limit R, the maximum difference between valid mean reflectance results obtained on the same sample by different operators in different laboratories using different instruments. Removal of outlying values where the individual signed multiple of standard deviation was greater than 1.0 produced lowest R values, generally equal to or less than 0.5% (absolute reflectance), similar to a prior ILS for similar samples. Other traditional approaches to outlier removal (outside mean plus or minus 1.5*interquartile range and outside F10 to F90 percentile range) also produced similar R values. Standard deviation values less than 0.15*(VRo or BRo) reduce R and should be a requirement of dispersed organic matter reflectance analysis. R values were 0.1% to 0.2% for peak oil thermal maturity, about 0.3% for wet gas/condensate maturity and 0.4% to 0.5% for dry gas maturity. That is, these R values represent the uncertainty (in absolute reflectance) that users of vitrinite and solid bitumen reflectance data should assign to any one individual reported mean reflectance value from a similar thermal maturity mudrock sample. R values of this magnitude indicate a need for further standardization of reflectance measurement of dispersed organic matter. Furthermore, these R values quantify realistic interlaboratory measurement dispersion for a difficult but critically important analytical technique necessary for thermal maturity determination in unconventional petroleum systems.
DOI: 10.5066/p9zkxd8n
title: U.S. Geological Survey Precipitation Chemistry Quality Assurance Project Data 2017 - 2018

description: The USGS Precipitation Chemistry Quality Assurance Project (PCQA) operates QA programs to challenge and test the National Atmospheric Deposition Program (NADP) data-collection processes for both the National Trends Network (NTN) and Mercury Deposition Network (MDN). PCQA data are available in separate tables for each quality-assurance program: (1) NTN Interlaboratory-comparison, (2) MDN Interlaboratory-comparison program, (3) NTN Field-Audit program, (4) MDN System-Blank program, and (5) NTN Co-located Sampler program. Measured parameters include precipitation depth, pH, specific conductance, and ion concentrations for calcium, magnesium, sodium, potassium, ammonium, chloride, bromide, nitrate, sulfate, phosphate, and total mercury.
DOI: 10.5066/p94rc4gd
title: Data for the U.S. Geological Survey Precipitation Chemistry Quality Assurance Project for the National Atmospheric Deposition Program, 1978-2017

description: The U.S. Geological Survey has operated the Precipitation Chemistry Quality Assurance (PCQA) Project to evaluate and document the data quality for the National Atmospheric Deposition Program (NADP) for 40 years. The PCQA is primarily focused on data quality for the NADP National Trends Network (NTN) and Mercury Deposition Network (MDN). The PCQA implements programs to evaluate the variability and bias of NADP data. The programs are described in several USGS reports: 1. See, R.B., Willoughby, T.C., and Brooks, M.H., 1990. Programs and analytical methods for the U.S. Geological Survey Acid Rain Quality Assurance Project: U.S. Geological Water-Resources Investigations Report 90-4029. 2. Latysh, N.E., and Wetherbee, G.A., 2005. External quality-assurance programs managed by the U.S. Geological Survey in support of the National Atmospheric Deposition Program/National Trends Network: U.S. Geological Survey Open-File Report 2005-1024. 3. Latysh, N.E., and Wetherbee, G.A., 2007. External Quality Assurance Programs Managed by the U.S. Geological Survey in Support of the National Atmospheric Deposition Program/Mercury Deposition Network: U.S. Geological Survey Open-file Report 2007-1170. 4. Wetherbee, G.A., and Martin, RoseAnn, 2017, Updated operational protocols for the U.S. Geological Survey Precipitation Chemistry Quality Assurance Project in support of the National Atmospheric Deposition Program: U.S. Geological Survey Open-File Report 2016-1213, 18 p., https://doi.org/10.3133/ofr20161213. Data users are referred to these reports for guidance to properly use the data. The data fields are described in data dictionaries in this data release. This data release provides the PCQA data from 1978 to 2017 for all PCQA programs. However, for the Colocated Sampler Program, only the colocated site data are provided herein because the original site data are available from the NADP web site at: http://nadp.slh.wisc.edu/NADP/networks.aspx.
DOI: 10.5066/p99zbz1s
title: Landsat and Sentinel-2 satellite data fusion-derived evapotranspiration maps of Palo Verde Irrigation District, California, USA

description: Three ET datasets were generated to evaluate the potential integration of Landsat and Sentinel-2 data for improved ET mapping. The first ET dataset was generated by linear interpolation (Lint) of Landsat-based ET fraction (ETf) images of before and after the selected image dates. The second ET dataset was generated using the regular SSEBop approach using the Landsat image only (Lonly). The third ET dataset was generated from the proposed Landsat-Sentinel data fusion (L-S) approach by applying ETf images from Landsat and Sentinel. The scripts (two) used to generate these three ET datasets are included - one script for processing SSEBop model to generate ET maps from Lonly and another script for generating ET maps from Lint and L-S approach.
DOI: 10.5066/p9p2phu3
title: Mangrove Data Collected from J.N. "Ding" Darling National Wildlife Refuge, Sanibel Island, Florida, United States

description: Mangrove inventory data from J.N. Ding Darling National Wildlife Refuge, Sanibel Island, Florida collected in 2016 and 2017. Plot data includes downed woody debris count, mangrove species information and site descriptions. Avicennia germinans (Black mangroves), Laguncularia racemosa (White mangroves) and Rhizophora mangle (Red mangroves) were inventoried for diameter at breast height (DBH), height, and dead status
DOI: 10.5066/p9cfk79s
title: Dry Weight, Volume and % Organic Carbon in Mangrove Sediment Cores Collected in September 2018 in J.N. "Ding" Darling National Wildlife Refuge, Sanibel Island, Florida, United States

description: Sediment cores (1 m in depth) were collected at each of three mangrove sites at J.N. Ding Darling National Wildlife Refuge on Sanibel Island, Florida. At each site, one core was collected in the hydrogeomorphic zone called the fringe, which is the area directly adjacent to the ocean. The other core was collected in the zone called the basin, which is the large area, often behind a small berm, that receives less direct tidal energy. All cores were sectioned and measured for sectional volume, dry weight and % organic carbon by weight.
DOI: 10.5066/f70p0x6c
title: Decomposition of plant litter in Pacific coast tidal marshes, 2014-2015

description: Decomposition of plant matter is one of the key processes affecting carbon cycling and storage in tidal wetlands. In this study, we evaluated the effects of factors related to climate change (temperature, inundation) and vegetation composition on rates of litter decay in seven tidal marsh sites along the Pacific coast. In 2014 we conducted manipulative experiments to test inundation effects on litter decay at Siletz Bay, OR and Petaluma marsh, CA. In 2015 we studied decay of litter in high and low elevation marshes at seven Pacific coast sites. These data support the following publication: Janousek, C.N., Buffington, K.J., Guntenspergen, G.R. et al. Ecosystems (2017). doi:10.1007/s10021-017-0111-6. http://link.springer.com/article/10.1007/s10021-017-0111-6