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Search Publications by: James Whetstone (Fed)

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Displaying 1 - 25 of 48

Underestimation of Thermogenic Methane Emissions in New York City (New York City methane emissions: what are we missing?)

May 14, 2024
Joseph R. Pitt, Israel Lopez Coto, Anna Karion, Kristian D. Hajny, Jay M. Tomlin, Robert Kaeser, Thilina Jayarathne, Brian H. Stirm, Cody R. Floerchinger, Christopher P. Loughner, Roisin Commane, Conor K. Gately, Lucy R. Hutyra, Kevin R. Gurney, Geoffrey S. Roest, Jianming Liang, Sharon Gourdji, Kimberly Mueller, James Whetstone, Paul B. Shepson
Recent studies have shown that methane emissions are underestimated by inventories in many US urban areas. This has important implications for climate change mitigation policy at the city, state, and national levels. Uncertainty in both the spatial

Analyzing "grey zone" Turbulent Kinetic Energy predictions in the Boundary Layer from three WRF PBL Schemes over New York City and comparison to Aircraft measurements

January 1, 2024
Austin Hope, Israel Lopez Coto, Kristian Hajny, Jay M Tomlin, Robert Kaeser, Brian Stirm, Anna Karion, James Whetstone, Paul Shepson
We conduct WRF simulations at multiple resolutions down to the "grey zone" (9 km, 3 km, 1 km, 333 m) to examine boundary layer turbulence in three planetary boundary layer (PBL) schemes: the well-established MYNN PBL scheme and the two newest PBL schemes

Methane emissions show recent decline but strong seasonality in two US Northeastern cities

November 9, 2023
Anna Karion, Subhomoy Ghosh, Israel Lopez Coto, Kimberly Mueller, Sharon Gourdji, Joseph Pitt, James Whetstone
Urban methane emissions have been found to exceed estimates derived using traditional inventory methods in several US cities. In large northeastern US cities, including in Washington, DC and Baltimore, Maryland, studies using atmospheric methane

Workshop on Incorporating Climate Change Data in U.S. Building Codes and Standards

March 8, 2023
Jason D. Averill, Therese P. McAllister, Andrew K. Persily, Scott Weaver, James Whetstone, Jiann C. Yang, Michael Kuperberg, Sumant Nigam, Alfredo Ruiz-Barradas
NIST hosted a workshop to advance the availability of climate information sought by organizations developing standards, model building codes, and voluntary certifications by convening interactions between the building codes and climate science communities.

IG3IS Urban Greenhouse Gas Emission Observation and Monitoring Best Research Practices

August 1, 2022
Jocelyn Turnbull, Philip DeCola, Kimberly Mueller, Felix Vogel, Anna Karion, Israel Lopez Coto, James Whetstone
The Integrated Global Greenhouse Gas Information System (IG3IS) aims to coordinate an integrated global greenhouse gas information system, linking inventory and process model-based information with atmospheric observations and atmospheric modelling, to

Background conditions for an urban greenhouse gas network in the Washington, D.C. and Baltimore metropolitan region

August 25, 2021
Anna Karion, Israel Lopez Coto, Sharon Gourdji, Kimberly Mueller, Subhomoy Ghosh, William Callahan, Michael Stock, Elizabeth DiGangi, Steve Prinzivalli, James Whetstone
As city governments take steps towards establishing emissions reduction targets, the atmospheric research community is increasingly able to assist in tracking emissions reductions. Researchers have established systems for observing atmospheric greenhouse

Fluxes of Atmospheric Greenhouse-Gases in Maryland (FLAGG-MD): Emissions of Carbon Dioxide in the Baltimore-Washington, DC area

April 15, 2020
Doyeon Ahn, Jonathan R. Hansford, Shawn T. Howe, Xinrong R. Ren, Ross J. Salawitch, Ning Zeng, Mark D. Cohen, Barbara Stunder, Olivia E. Salmon, Paul B. Shepson, Kevin R. Gurney, Tomohiro Oda, Israel Lopez Coto, James Whetstone, Russel R. Dickerson
To study emissions of CO2 in the Baltimore-Washington, DC (Balt-Wash) area, an aircraft campaign was conducted in February 2015, as part of the FLAGG-MD (Fluxes of Atmospheric Greenhouse-Gases in Maryland) project. During the campaign, elevated mixing

Greenhouse gas observations from the Northeast Corridor tower network

March 25, 2020
Anna Karion, William Callahan, Michael Stock, Steve Prinzivalli, Kristal R. Verhulst, Jooil Kim, Peter Salameh, Israel Lopez Coto, James R. Whetstone
We present the organization, structure, instrumentation, and measurements of the Northeast Corridor greenhouse gas observation network. This network of tower-based in-situ carbon dioxide and methane observations was established in 2015 with the goal of

Wintertime CO2, CH4 and CO emissions estimation for the Washington DC / Baltimore metropolitan area using an inverse modeling technique

February 11, 2020
Israel Lopez Coto, Xinrong Ren, Olivia E. Salmon, Anna Karion, Paul B. Shepson, Russell R. Dickerson, Ariel Stein, Kuldeep R. Prasad, James R. Whetstone
Since greenhouse gas mitigation efforts are being mostly implemented in cities, the ability to quantify emission trends for urban environments is of paramount importance. However, previous aircraft work has indicated large daily variability in the results

Siting background towers to characterize incoming air for urban GHG estimation: a case study in the Washington DC/Baltimore Area

June 5, 2019
Kimberly L. Mueller, Vineet Yadav, Israel Lopez Coto, Anna Karion, Sharon M. Gourdji, Cory R. Martin, James R. Whetstone
There is increased interest in understanding urban greenhouse gas (GHG) emissions. However, to accurately estimate city emissions, the influence of exurban fluxes must first be removed from urban greenhouse gas (GHG) observations. This is especially true

Inter-comparison of Atmospheric Trace Gas Dispersion Models: Barnett Shale Case Study

February 28, 2019
Anna Karion, Thomas Lauvaux, Israel Lopez Coto, Colm Sweeney, Kimberly L. Mueller, Sharon M. Gourdji, Wayne Angevine, Zachary R. Barkley, Aijun Deng, Ariel Stein, James R. Whetstone
Greenhouse gas emissions mitigation requires understanding dominant processes controlling fluxes of these trace gases into the atmosphere at increasingly finer spatial and temporal scales. Trace gas fluxes can be estimated using a variety of approaches

Evaluation of WRF-Chem Simulated Carbon Dioxide Atmospheric Transport and Emissions in the Baltimore / Washington Metropolitan Area

November 10, 2018
Cory R. Martin, Ning Zeng, Anna Karion, Kimberly L. Mueller, Subhomoy Ghosh, Israel Lopez Coto, Kevin Gurney, Tomohiro Oda, Kuldeep R. Prasad, Yun Liu, Russell R. Dickerson, James R. Whetstone
Urban areas are major sources of carbon dioxide (CO2) emissions, contributing to the increase in global concentrations and leading to concerns about Earth's future climate. In recent years, several urban testbeds have been implemented to improve and

Improving Measurement for Smokestack Emissions - Workshop Summary

September 21, 2018
Rodney A. Bryant, Aaron N. Johnson, John D. Wright, Tamae M. Wong, James R. Whetstone, Michael R. Moldover, Iosif I. Shinder, Scott Swiggard, Chris Gunning, David Elam, Tom Martz, Eric Harman, David Nuckols, Liang Zhang, Woong Kang, Salvator Vigil
The complex flow conditions inherent in power plant smokestacks make accurate flow measurements challenging, which in turn limits the accuracy of hazardous emissions measurements. While stack composition measurements are assessed daily via comparison to a

The Indianapolis Flux Experiment (INFLUX): A test-bed for developing anthropogenic greenhouse gas emission measurements.

May 23, 2017
Ken Davis, Kevin Gurney, R. M. Hardesty, Shepson Paul, Colm Sweeney, Jocelyn Turnbull, James Whetstone, Anna Karion
The objective of the Indianapolis Flux Experiment (INFLUX) is to develop, evaluate and improve methods for measuring greenhouse gas (GHG) emissions from cities. INFLUX's scientific objectives are to quantify CO2 and CH4 emission rates at 1 km2 resolution

Tower based measurement network design for the North East Corridor project

May 17, 2017
Israel Lopez Coto, Subhomoy Ghosh, Kuldeep R. Prasad, James R. Whetstone
The North-East Corridor project aims to use a top-down inversion method to quantify sources of Greenhouse Gas (GHG) emissions in the urban areas of, in the first phase, Washington DC and Baltimore at approximately 1km2 resolutions. Since inversion methods

Measurement Challenges and Metrology for Monitoring CO2 Emissions from Smokestacks – Workshop Summary

January 20, 2016
Aaron N. Johnson, Rodney A. Bryant, Tamae M. Wong, James R. Whetstone, Eric Harman, Woong Kang, Keith A. Gillis, Hsin-Hung Lee, Iosif I. Shinder, Liang Zhang
On April 20-21, 2015, NIST hosted a workshop that, through measurement science, enabled the owners of stationary sources (primarily the electric power industry) and their regulatory agencies (federal and state) to better characterize greenhouse gas (GHG)

Greenhouse Gas Emissions and Dispersion 3. Reducing Uncertainty in Estimating Source Strength and Location through Plume Inversion Models

September 30, 2015
Kuldeep R. Prasad, Adam L. Pintar, Heming Hu, Israel Lopez Coto, Dennis T. Ngo, James R. Whetstone
Recent development of accurate instruments for measuring greenhouse gas concentrations and the ability to mount them in ground based vehicles has provided an opportunity to make temporally and spatially resolved measurements in the vicinity of suspected