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    Academic Journals

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• Methane emissions in the United States, Canada, and Mexico: evaluation of national methane emission inventories and 2010-2017 sectoral trends by inverse analysis of in situ (GLOBALVIEWplus CH.sub.4 ObsPack) and satellite (GOSAT) atmospheric observations.

  Authors:Xiao Lu, Daniel J. Jacob, Haolin Wang, Joannes D. Maasakkers, Yuzhong Zhang, Tia R. Scarpelli, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 1) Peer-Reviewed

  Jan. 12, 2022499 words Article We quantify methane emissions and their 2010-2017 trends by sector in the contiguous United States (CONUS), Canada, and Mexico by inverse analysis of in situ (GLOBALVIEWplus CH.sub.4 ObsPack) and satellite (GOSAT)...

• Estimating 2010-2015 anthropogenic and natural methane emissions in Canada using ECCC surface and GOSAT satellite observations.

  Authors:Sabour Baray, Daniel J. Jacob, Joannes D. Maasakkers, Jian-Xiong Sheng, Melissa P. Sulprizio, Dylan B. A. Jones, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 23) Peer-Reviewed

  Dec. 13, 2021421 words Article Methane emissions in Canada have both anthropogenic and natural sources. Anthropogenic emissions are estimated to be 4.1 Tg a.sup.-1 from 2010-2015 in the National Inventory Report submitted to the United Nation's...

• Global distribution of methane emissions: a comparative inverse analysis of observations from the TROPOMI and GOSAT satellite instruments.

  Authors:Zhen Qu, Daniel J. Jacob, Lu Shen, Xiao Lu, Yuzhong Zhang, Tia R. Scarpelli, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 18) Peer-Reviewed

  Sept. 24, 2021422 words Article We evaluate the global atmospheric methane column retrievals from the new TROPOMI satellite instrument and apply them to a global inversion of methane sources for 2019 at 2.sup." x 2.5.sup." horizontal resolution. We...

• Vast CO.sub.2 release from Australian fires in 2019-2020 constrained by satellite.

  Authors:Ivar R. van der Velde, Guido R. van der Werf, Sander Houweling, Joannes D. Maasakkers, Tobias Borsdorff, Jochen Landgraf, et al.From:Nature (Vol. 597, Issue 7876) Peer-Reviewed

  Sept. 16, 20215,111 words Report 1590L

   Citation Only

• Reduced-cost construction of Jacobian matrices for high-resolution inversions of satellite observations of atmospheric composition.

  Authors:Hannah Nesser, Daniel J. Jacob, Joannes D. Maasakkers, Tia R. Scarpelli, Melissa P. Sulprizio, Yuzhong Zhang, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 8) Peer-Reviewed

  Aug. 12, 2021385 words Brief article Global high-resolution observations of atmospheric composition from satellites can greatly improve our understanding of surface emissions through inverse analyses. Variational inverse methods can optimize surface...

• Monitoring global tropospheric OH concentrations using satellite observations of atmospheric methane

  Authors:Yuzhong Zhang, Daniel J. Jacob, Joannes D. Maasakkers, Melissa P. Sulprizio, Jian-Xiong Sheng, Ritesh Gautam, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 21) Peer-Reviewed

  Nov. 7, 2018342 words Author abstract, Bri...

  The hydroxyl radical (OH) is the main tropospheric oxidant and the main sink for atmospheric methane. The global abundance of OH has been monitored for the past decades using atmospheric methyl chloroform (CH.sub.3...

• Attribution of the accelerating increase in atmospheric methane during 2010-2018 by inverse analysis of GOSAT observations.

  Authors:Yuzhong Zhang, Daniel J. Jacob, Xiao Lu, Joannes D. Maasakkers, Tia R. Scarpelli, Jian-Xiong Sheng, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 5) Peer-Reviewed

  Mar. 10, 2021354 words Brief article We conduct a global inverse analysis of 2010-2018 GOSAT observations to better understand the factors controlling atmospheric methane and its accelerating increase over the 2010-2018 period. The inversion optimizes...

• 2010-2016 methane trends over Canada, the United States, and Mexico observed by the GOSAT satellite: contributions from different source sectors

  Authors:Jian-Xiong Sheng, Daniel J. Jacob, Alexander J. Turner, Joannes D. Maasakkers, Joshua Benmergui, A. Anthony Bloom, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 16) Peer-Reviewed

  Aug. 24, 2018245 words Brief article

  We use 7 years (2010-2016) of methane column observations from the Greenhouse Gases Observing Satellite (GOSAT) to examine trends in atmospheric methane concentrations over North America and infer trends in...

• Satellite observations of atmospheric methane and their value for quantifying methane emissions

  Authors:Daniel J. Jacob, Alexander J. Turner, Joannes D. Maasakkers, Jianxiong Sheng, Kang Sun, Xiong Liu, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 22) Peer-Reviewed

  Nov. 18, 2016309 words Brief article Methane is a greenhouse gas emitted by a range of natural and anthropogenic sources. Atmospheric methane has been measured continuously from space since 2003, and new instruments are planned for launch in the near...

• Improving algorithms and uncertainty estimates for satellite NO.sub.2 retrievals: results from the quality assurance for the essential climate variables (QA4ECV) project

  Authors:K. Folkert Boersma, Henk J. Eskes, Andreas Richter, Isabelle De Smedt, Alba Lorente, Steffen Beirle, et al.From:Atmospheric Measurement Techniques (Vol. 11, Issue 12) Peer-Reviewed

  Dec. 17, 2018368 words Author abstract, Bri...

  Global observations of tropospheric nitrogen dioxide (NO.sub.2) columns have been shown to be feasible from space, but consistent multi-sensor records do not yet exist, nor are they covered by planned activities at...

• Comparative analysis of low-Earth orbit (TROPOMI) and geostationary (GeoCARB, GEO-CAPE) satellite instruments for constraining methane emissions on fine regional scales: application to the Southeast US

  Authors:Jian-Xiong Sheng, Daniel J. Jacob, Joannes D. Maasakkers, Yuzhong Zhang, and Melissa P. SulprizioFrom:Atmospheric Measurement Techniques (Vol. 11, Issue 12) Peer-Reviewed

  Nov. 29, 2018303 words Author abstract, Bri...

  We conduct Observing System Simulation Experiments (OSSEs) to compare the ability of future satellite measurements of atmospheric methane columns (TROPOMI, GeoCARB, GEO-CAPE) for constraining methane emissions down...

• Quantifying methane emissions from natural gas production in north-eastern Pennsylvania

  Authors:Zachary R. Barkley, Thomas Lauvaux, Kenneth J. Davis, Aijun Deng, Natasha L. Miles, Scott J. Richardson, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 22) Peer-Reviewed

  Nov. 23, 2017372 words Brief article Natural gas infrastructure releases methane (CH.sub.4 ), a potent greenhouse gas, into the atmosphere. The estimated emission rate associated with the production and transportation of natural gas is uncertain, hindering...

• High-resolution inversion of methane emissions in the Southeast US using SEAC.sup.4RS aircraft observations of atmospheric methane: anthropogenic and wetland sources

  Authors:Jian-Xiong Sheng, Daniel J. Jacob, Alexander J. Turner, Joannes D. Maasakkers, Melissa P. Sulprizio, A. Anthony Bloom, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 9) Peer-Reviewed

  May 7, 2018262 words Author abstract, Bri... We use observations of boundary layer methane from the SEAC.sup.4 RS aircraft campaign over the Southeast US in August-September 2013 to estimate methane emissions in that region through an inverse analysis...

• Global methane budget and trend, 2010-2017: complementarity of inverse analyses using in situ (GLOBALVIEWplus CH.sub.4 ObsPack) and satellite (GOSAT) observations.

  Authors:Xiao Lu, Daniel J. Jacob, Yuzhong Zhang, Joannes D. Maasakkers, Melissa P. Sulprizio, Lu Shen, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 6) Peer-Reviewed

  Mar. 25, 2021405 words Brief article We use satellite (GOSAT) and in situ (GLOBALVIEWplus CH4 ObsPack) observations of atmospheric methane in a joint global inversion of methane sources, sinks, and trends for the 2010-2017 period. The inversion is done by...

• Assessment of methane emissions from the U.S. oil and gas supply chain

  Authors:Ramon A. Alvarez, Daniel Zavala-Araiza, David R. Lyon, David T. Allen, Zachary R. Barkley, Adam R. Brandt, et al.From:Science (Vol. 361, Issue 6398) Peer-Reviewed

  July 13, 2018135 words Author abstract, Rep...

   Abstract Only

• Satellite observations reveal extreme methane leakage from a natural gas well blowout.

  Authors:Sudhanshu Pandey, Ritesh Gautam, Sander Houweling, Hugo Denier van der Gon, Pankaj Sadavarte, Tobias Borsdorff, et al.From:Proceedings of the National Academy of Sciences of the United States (Vol. 116, Issue 52) Peer-Reviewed

  Dec. 26, 20195,023 words Article 1500L

   Abstract Only

• Emissions of methane in Europe inferred by total column measurements

  Authors:Debra Wunch, Dylan B. A. Jones, Geoffrey C. Toon, Nicholas M. Deutscher, Frank Hase, Justus Notholt, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 6) Peer-Reviewed

  Mar. 28, 201967 words Author abstract, Bri... Byline: Debra Wunch, Dylan B. A. Jones, Geoffrey C. Toon, Nicholas M. Deutscher, Frank Hase, Justus Notholt, Ralf Sussmann, Thorsten Warneke, Jeroen Kuenen, Hugo Denier van der Gon, Jenny A. Fisher, Joannes D....

• Global distribution of methane emissions, emission trends, and OH concentrations and trends inferred from an inversion of GOSAT satellite data for 2010-2015

  Authors:Joannes D. Maasakkers, Daniel J. Jacob, Melissa P. Sulprizio, Tia R. Scarpelli, Hannah Nesser, Jian-Xiong Sheng, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 11) Peer-Reviewed

  June 12, 2019353 words Author abstract, Bri...

  We use 2010-2015 observations of atmospheric methane columns from the GOSAT satellite instrument in a global inverse analysis to improve estimates of methane emissions and their trends over the period, as well as the...

• 2010-2015 North American methane emissions, sectoral contributions, and trends: a high-resolution inversion of GOSAT observations of atmospheric methane.

  Authors:Joannes D. Maasakkers, Daniel J. Jacob, Melissa P. Sulprizio, Tia R. Scarpelli, Hannah Nesser, Jianxiong Sheng, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 6) Peer-Reviewed

  Mar. 22, 2021396 words Brief article We use 2010-2015 Greenhouse Gases Observing Satellite (GOSAT) observations of atmospheric methane columns over North America in a high-resolution inversion of methane emissions, including contributions from different...