Developing Facility-Level Measurement Informed Inventory Model for Methane Emissions from Oil and Gas Production Facilities
Authors: S Yang, SN Stokes, J Wang, AP Ravikumar

Systematic Field Performance Comparison of Aerial Methane Measurement Technologies Across Various US Oil and Gas Basins
Authors: S Gupta, E Tullos, DR Lyon, H Ma, AP Ravikumar

Advances in Oil and Gas Methane Emissions Reconciliation and Uncertainty Estimation Methods II Poster
Authors: H Ma, AP Ravikumar, ED Sherwin, M Johnson

Regulatory and Voluntary Initiatives for Differentiating Greenhouse Gas Emissions in Global Oil and Gas Supply Chains Poster
Authors: Y Zhu, C Schissel, JB Dunn, EE Tullos, AP Ravikumar, DR Lyon

Techno-economic Assessment of US Natural Gas Pipeline Leak Detection and Repair Programs-Introducing the FEAST-Pipeline Model Framework
Authors: A Strayer, AP Ravikumar

Geospatial life cycle analysis of greenhouse gas emissions from US liquefied natural gas supply chains
Authors: Y Zhu, DT Allen, AP Ravikumar
ACS Sustainable Chemistry & Engineering 12 (49), 17843-17854

Gas Pathing: Improved Greenhouse Gas Emission Estimates of Liquefied Natural Gas Exports through Enhanced Supply Chain Resolution
Authors: George, F., Roman-White, S., Mallikarjuna Prasanna, D., McCullagh, A., Ravikumar, A., Allen, D., Chivukula, K., Khutal, H., Balcombe, P., Ross, G., Handler, B., Brazilian, M.
ACS Sustainable Chemistry & Engineering 12 (46), 16956-16966

Intercomparison of three continuous monitoring systems on operating oil and gas sites
Authors: W Daniels, S Kidd, SL Yang, S Stokes, A Ravikumar, D Hammerling

Effect of Hydrogen Leakage on the Life Cycle Climate Impacts of Hydrogen Supply Chains
Authors: E Goita, EA Beagle, AN Nasta, DL Wissmiller, A Ravikumar, ME Webber

Geospatial variation in carbon accounting of hydrogen production and implications for the US Inflation Reduction Act
Authors: V Vallejo, Q Nguyen, AP Ravikumar
Nature Energy, 1-12

The Impact of Survey Frequency on the Accuracy of Measurement Informed Methane Emissions Inventory
Authors: H Xia, A Strayer, AP Ravikumar
SPE Annual Technical Conference and Exhibition, D031S037R007

Investigating aerial data pre-analysis schemes and site-level methane emission aggregation methods at LNG facilities
Authors: O Khaliukova, Y Zhu, W Daniels, A Ravikumar, G Ross, S Roman-White

Multiscale Measurements of Greenhouse Gas Emissions at US Natural Gas Liquefaction Terminals
Authors: Y Zhu, G Ross, O Khaliukova, SA Roman-White, FC George
Environmental Science & Technology Letters

Assessing the Performance of Continuous Methane Monitoring Systems at Midstream Compressor Stations
Authors: S Yang, A Ravikumar

Methane quantification performance of the quantitative optical gas imaging (QOGI) system using single-blind controlled release assessment
Authors: C Ilonze, J Wang, AP Ravikumar, D Zimmerle
Sensors 24 (13), 4044

Developing Measurement-Informed Methane Emissions Inventory Estimates at Midstream Compressor Stations
Authors: A Ravikumar, ZH Li, SL Yang, M Smith

Large-scale controlled experiment demonstrates effectiveness of methane leak detection and repair programs at oil and gas facilities
Authors: JL Wang, B Barlow, W Funk, C Robinson, A Brandt, AP Ravikumar
Environmental Science & Technology 58 (7), 3194-3204

The Role of Emission Size Distribution on the Efficacy of New Technologies to Reduce Methane Emissions from the Oil and Gas Sector
Authors: H Xia, A Strayer, AP Ravikumar
Environmental Science & Technology 58 (2), 1088-1096

Methods for spatial extrapolation of methane measurements in constructing regional estimates from sample populations
Authors: Schissel, C., Allen, D. and Dieter, H.
Environmental Science & Technology, 58, 2739–2749 (2024).

The Scientific Challenges of Monitoring, Measuring, Reporting and Verifying Greenhouse Gas Emissions from Natural Gas Systems
Authors: Allen, D.T., Ravikumar, A. and Tullos, E.
ACS Sustainable Resource Management, 1, 10-12

High spatial and temporal resolution simulations of methane column loadings due to routine emissions and emission events in oil and gas regions
Authors: Huang, L., Stokes, S., Chen, Q., Cardoso-Saldaña, F.J., Allen, D.T.
ACS ES&T Air, 1, 706–713, doi: 10.1021/acsestair.4c00021

Defining detection limits for Continuous Monitoring Systems for methane emissions at oil and gas facilities
Authors: Chen, Q., Kimura, Y., and Allen, D.T.
Atmosphere, 15 (3), 383; doi: 10.3390/atmos15030383

Moving toward zero routine flaring in the Permian Basin Oil and Gas Production Region: Measuring Progress and Driving Factors
Authors: Allen, D.T., Roman-White, S.A., McCormick, M. and George, F.
ACS Sustainable Resource Management, 1, 1041–1046, doi: 10.1021/acssusresmgt.4c00091

Fine Scale Spatial and Temporal Allocation of NOx Emissions from Unconventional Oil and Gas Development Can Result in Increased Predicted Regional Ozone Formation
Authors: Modi, M, Kimura, Y., Hildebrandt-Ruiz, L., and Allen, D.T.
ACS ES&T Air, doi: 10.1021/acsestair.4c00077

Quantifying the impact of urban road traffic and emissions on air quality: Activity pre-pandemic and during partial and full lockdowns
Authors: Alhajeri, N., Al-Fadhli, F., Aly, A., and Allen, D.
Environmental Monitoring and Assessment, 196, 418, doi: 10.1007/s10661-024-12572-8

Uncertainties in the estimated methane emissions in oil and gas production regions based on aircraft mass balance flights
Authors: Huang, L., Stokes, S., Chen, Q., Allen, D.T.
ACS Sustainable Chemistry & Engineering, 12, 11024–11032, doi: 10.1021/acssuschemeng.4c03945

Charting the Course: The National Petroleum Council’s Advice on the Role of Emission Detection and Quantification in Reducing Greenhouse Gas Emissions from the U.S. Natural Gas Supply Chain
Authors: Allen, D.T., Zimmerle, D. and Dabbar, J.
ACS Sustainable Resource Management, 1, 1035–1036, doi: 10.1021/acssusresmgt.4c00179