Physical Sciences and Mathematics Commons^™

10578145, Pioneer Technical Services, Inc., Environmental Protection Agency

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

10585806 Edd, Pioneer Technical Services, Inc., Environmental Protection Agency

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 3q Laboratory Edds, Pioneer Technical Services, Inc., Environmental Protection Agency

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 3q Btl Chemdump, Pioneer Technical Services, Inc., Environmental Protection Agency

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 3q Btl Daily Pts Field Dump, Environmental Protection Agency, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

10577877 Edd, Environmental Protection Agency, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 Btl O&M Events Log / 2021 Daily Log, Pioneer Technical Services, Inc., Environmental Protection Agency

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Replication Data For: Investigating Detection Probability Of Mobile Survey Solutions For Natural Gas Pipeline Leaks Under Different Atmospheric Conditions, Shanru Tian, Stuart Riddick, Younki Cho, Bell Clay, Daniel Zimmerle, Kathleen Smits

Earth & Environmental Sciences Datasets

The 2015 Paris agreement aims to cut greenhouse gas emissions and keep global temperature rise below 2 °C above pre-industrial levels. Reducing CH4 emissions from leaking pipelines presents a relatively achievable objective. While walking and driving surveys are commonly used to detect leaks, the detection probability (DP) is poorly characterized. This study aims to investigate how leak rates, survey distance and speed, and atmospheric conditions affect the DP in controlled belowground conditions with release rates of 0.5–8.5 g min−1. Results show that DP is highly influenced by survey speed, atmospheric stability, and wind speed. The average DP in Pasquill–Gifford stability …

Replication Data For: A Closer Look At Underground Natural Gas Pipeline Leaks Across The United States, Younki Cho, Kathleen M. Smits, Nathaniel L. Steadman, Bridget A. Ulrich, Clay S. Bell, Daniel J. Zimmerle

Earth & Environmental Sciences Datasets

Underground natural gas (NG) pipeline leakage can result in methane (CH₄) buildup and migration through the soil. What is not well understood in such scenarios is how the soil conditions affect the gas migration behavior, particularly in regard to the relative contributions of specific soil properties such as soil moisture content. The objective of this study was to investigate the effects of soil properties on CH₄ concentration and migration from leaking underground NG pipelines. Site characteristics such as surface cover and spatial dimensions, soil samples, and gas concentration data were collected from over 70 gas leakage sites …

Data Supporting: Scaling Of Turbulence And Microphysics In A Convection-Cloud Chamber Of Varying Height, Subin Thomas, Fan Yang, Mikhail Ovchinnikov, Will Cantrell, Raymond Shaw

Michigan Tech Research Data

The file contains the data corresponding to the figures in the paper. Abstract for the paper: The convection-cloud chamber enables measurement of aerosol and cloud microphysics, as well as their interactions, within a turbulent environment under steady-state conditions. Increasing the size of a convection-cloud chamber, while holding the imposed temperature difference constant, leads to increased Rayleigh, Reynolds and Nusselt numbers. Large-eddy simulation coupled with a bin microphysics model allows the influence of increased velocity, time, and spatial scales on cloud microphysical properties to be explored. Simulations of a convection--cloud chamber, with fixed aspect ratio and increasing heights of H=1, 2, …

Hydrodynamic Limitations To Mangrove Seedling Retention In Subtropical Estuaries, Kelly M. Kibler, Christian Pilato, Linda Walters, Melinda Donnelly, Jyotismita Taye

Flow-biota Interaction and Natural Infrastructure Design

Mangrove forest sustainability hinges upon propagule recruitment and seedling retention. This study evaluates biophysical limitations to mangrove seedling persistence by measuring anchoring force of two mangrove species (Rhizophora mangle and Avicennia germinans). Anchoring force was measured in 362 seedlings via lateral pull-tests administered in mangrove forests of two subtropical estuaries and in laboratory-based experiments. Removal mechanism varied with seedling age: newly-established seedlings failed due to root pull-out while seedlings older than 3 months failed by root breakage. Anchoring force of R. mangle seedlings was consistently and significantly greater than A. germinans (GLM: p = 0.002), however force to …

Replication Data For "Estimating Methane Emissions From Underground Natural Gas Pipelines Using An Atmospheric Dispersion-Based Method", Shanru Tian, Kathleen M. Smits, Younki Cho, Stuart Riddick, Daniel Zimmerle, Aidan Duggan

Earth & Environmental Sciences Datasets

Methane (CH₄) leakage from natural gas (NG) pipelines poses an environmental, safety, and economic threat to the public. While previous leak detection and quantification studies focus on the aboveground infrastructure, the analysis of underground NG pipeline leak scenarios is scarce. Furthermore, no data from controlled release experiments have been published on the accuracy of methods used to (1) quantify emissions from an area source and (2) use these emissions to quantify the size of a subsurface leak. This proof-of-concept work uses CH₄ mole fraction, as measured by a single gas sensor, as an input to a simple …

2021 Bpsou Subdrain Electronic Database, Pioneer Technical Services, Inc., Atlantic Richfield Company, Environmental Protection Agency

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2022 Q1 Bpsou Sw - Base Flow, Trec Inc., A Woodard And Curran Company

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Connecticut Embayment Characteristics 2022, Jamie M.P. Vaudrey, James E. O'Donnell

Department of Marine Sciences

Data on Connecticut embayment characteristics. This Excel file is the centerpiece for capturing embayment characteristics as presented in RESPEC (2022), developed specifically for this project. Some parameters such as watershed size, embayment size, and tidal range were pulled from other sources described in Appendix A of RESPEC (2022), but much of the data and indicators in the Excel file were developed for this project. Each parameter included in the spreadsheet is fully defined in Appendix A of RESPEC (2022). All data available in the spreadsheet are provided by embayment in Appendix C of RESPEC (2022), including the results of bathymetric …

Copy Of Revision Summary, Atlantic Richfield Company

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 3q Btl Chemdump, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 3q Btl Daily Pts Field Dump, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 3q Laboratory Edd, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

2021 Btl O&M Events Log / 2021 Daily Log, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Copy Of Revision Summary - Sbc/Butte Area Npl Site Final Bpsou Interim Site-Wide Surface Water Monitoring Qapp 2020 And 2021 Monitoring Period, 10/14/20, Atlantic Richfield Company, Trec Inc., A Woodard And Curran Company

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Fy 2022 Umass Amherst Waste Management Report, Ezra Small

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

Biographical Calendars Of Astronomers [January - December], Thomas A. Hockey

Data Sets

A set of twelve biographical calendars of astronomers for each month of the year (January through December). History of astronomy (public outreach).

Record contents:

• Main Download button - A merged Excel file with all 12 months
• Additional Files section - Individual Excel files for each month [January - December]

Changes In Bark Properties And Hydrology Following Prescribed Fire, Courtney Siegert, Anna Ilek, Adam Wade

College of Forest Resources Publications and Scholarship

No abstract provided.

Seagrass Species Data Occurrence Recorded In Indonesia's Water, Susi Rahmawati, Udhi Hernawan, Kathryn M. Mcmahon

Research Datasets

This is the dataset of seagrass species occurrence compiled for the research project, titled “Prioritizing areas in Indonesia to conserve and enhance seagrass ecosystem functions under a changing climate”, funded by the 2021/2022 ANU Indonesia Project Research Grants.

Recovery Time, Biomass Characteristics And Recovery Mechanisms Of Seagrass Following Simulated Grazing, Caitlyn O'Dea, Paul Lavery, Chanelle Webster, Kathryn Mcmahon

Research Datasets

The database compiles data published on seagrass recovery time, biomass characteristics, and recovery mechanisms following simulated grazing disturbance experiment in the Swan Canning Estuary, Western Australia. Observations of swans in the vicinity is also included.

Porewater Salinity Influences Germination Of Ruppia Polycarpa In Variable Estuarine Habitats, Chanelle Webster

Research Datasets

Porewater salinity at different depth intervals during different months. Seed, germling and seedling density data in two estuaries and during different months. Seed germination, seedling establishment and growth under experimental conditions.

Silver Bow Creek/Butte Area Npl Site 2022 Draft Butte Priority Soils Operable Unit Interim Site-Wide Groundwater Monitoring Quality Assurance Project Plan (Qapp), 11/16/21, Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Sbc/Butte Area Npl Site Final Bpsou Interim Site-Wide Surface Water Monitoring Qapp 2020 And 2021 Monitoring Period, 10/14/20, Nikia Greene

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Replication Data For: Characterization Of Grain-Size Distribution, Thermal Conductivity, And Gas Diffusivity In Variably Saturated Binary Sand Mixtures, C. T.K.K. Deepagoda, Kathleen Smits

Earth & Environmental Sciences Datasets

Characterization of differently textured porous materials, as well as different volumetric porous media mixtures, in relation to mass and heat transport is vital for many engineering and research applications. Functional relations describing physical (e.g., grain-size distribution, total porosity), thermal, and gas diffusion properties of porous media and mixtures are necessary to optimize the design of porous systems that involve heat and gas transport processes. However, only a limited number of studies provide characterization of soil physical, thermal, and gas diffusion properties and the functional relationships of these properties under varying soil water contents, especially for soil mixtures, complicating optimization efforts. …