Browsing Kjemisk institutt by Author "Weinheimer, Andrew J."

Now showing items 1-7 of 7

  • An Inversion Framework for Optimizing Non-Methane VOC Emissions Using Remote Sensing and Airborne Observations in Northeast Asia During the KORUS-AQ Field Campaign 
    Choi, Jinkyul; Henze, Daven K.; Cao, Hansen; Nowlan, Caroline R.; González Abad, Gonzalo; Kwon, Hyeong-Ahn; Lee, Hyung-Min; Oak, Yujin J.; Park, Rokjin J.; Bates, Kelvin H.; Maasakkers, Joannes D.; Wisthaler, Armin; Weinheimer, Andrew J. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We aim to reduce uncertainties in CH2O and other volatile organic carbon (VOC) emissions through assimilation of remote sensing data. We first update a three-dimensional (3D) chemical transport model, GEOS-Chem with the ...
  • Characterization of errors in satellite-based HCHO / NO2 tropospheric column ratios with respect to chemistry, column-to-PBL translation, spatial representation, and retrieval uncertainties 
    Souri, Amir H.; Johnson, Matthew S.; Wolfe, Glenn M.; Crawford, James H.; Fried, Alan; Wisthaler, Armin; Brune, William H.; Blake, Donald R.; Weinheimer, Andrew J.; Verhoelst, Tijl; Compernolle, Steven; Pinardi, Gaia; Vigouroux, Corinne; Langerock, Bavo; Choi, Sungyeon; Lamsal, Lok; Zhu, Lei; Sun, Shuai; Cohen, Ronald C.; Min, Kyung-Eun; Cho, Changmin; Philip, Sajeev; Liu, Xiong; Chance, Kelly (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The availability of formaldehyde (HCHO) (a proxy for volatile organic compound reactivity) and nitrogen dioxide (NO2) (a proxy for nitrogen oxides) tropospheric columns from ultraviolet–visible (UV–Vis) satellites has ...
  • Evaluation of Secondary Organic Aerosol (SOA) Simulations for Seoul, Korea 
    Oak, Yujin J.; Park, Rokjin J.; Jo, Duseong S.; Hodzic, Alma; Jimenez, Jose L.; Campuzano-Jost, Pedro; Nault, Benjamin A.; Kim, Hwajin; Kim, Hyeonmin; Ha, Eunjo S.; Song, Chang-Keun; Yi, Seung-Muk; Diskin, Glenn S.; Weinheimer, Andrew J.; Blake, Donald R.; Wisthaler, Armin; Shim, Mihee; Shin, Yoonmi (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Organic aerosols (OA) represent a significant fraction of total submicron particulate matter (PM1) concentrations globally, including densely populated megacities such as Seoul. However, scientific understanding of the ...
  • Evaluation of simulated O3 production efficiency during the KORUS-AQ campaign: Implications for anthropogenic NOx emissions in Korea 
    Oak, Yujin J.; Park, Rokjin J; Schroeder, Jason R.; Crawford, James H.; Blake, Donald R.; Weinheimer, Andrew J.; Woo, Jung-Hun; Kim, Sang-Woo; Yeo, Huidong; Fried, Alan; Wisthaler, Armin; Brune, William H. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    We examine O3 production and its sensitivity to precursor gases and boundary layer mixing in Korea by using a 3-D global chemistry transport model and extensive observations during the KORea-US cooperative Air Quality field ...
  • Modeling NH4NO3 Over the San Joaquin Valley During the 2013 DISCOVER‐AQ Campaign 
    Kelly, James T.; Parworth, Caroline L.; Zhang, Qi; Miller, David J.; Sun, Kang; Zondlo, Mark A.; Baker, Kirk R.; Wisthaler, Armin; Nowak, John B.; Pusede, Sally E.; Cohen, Ronald C.; Weinheimer, Andrew J.; Beyersdorf, Andreas J.; Tonnesen, Gail S; Bash, Jesse O.; Valin, Luke C.; Crawford, James H.; Fried, Alan; Walega, James G. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The San Joaquin Valley (SJV) of California experiences high concentrations of particulate matterNH4NO3during episodes of meteorological stagnation in winter. A rich data set of observations related toNH4NO3formation was ...
  • Nighttime and daytime dark oxidation chemistry in wildfire plumes: An observation and model analysis of FIREX-AQ aircraft data 
    Decker, Zachary C. J.; Robinson, Michael A.; Barsanti, Kelley C.; Bourgeois, Ilann; Coggon, Matthew M.; Digangi, Joshua P.; Diskin, Glenn S.; Flocke, Frank M.; Franchin, Alessandro; Fredrickson, Carley D.; Gkatzelis, Georgios I.; Hall, Samuel R.; Halliday, Hannah; Holmes, Christopher D.; Huey, L. Gregory; Lee, Young Ro; Lindaas, Jakob; Middlebrook, Ann M.; Montzka, Denise D.; Moore, Richard; Neuman, J. Andrew; Nowak, John B.; Palm, Brett B.; Peischl, Jeff; Piel, Felix Maximilian; Rickly, Pamela S.; Rollins, Andrew W.; Ryerson, Thomas B.; Schwantes, Rebecca H.; Sekimoto, Kanako; Thornhill, Lee; Thornton, Joel A.; Tyndall, Geoffrey S.; Ullmann, Kirk; Van Rooy, Paul; Veres, Patrick R.; Warneke, Carsten; Washenfelder, Rebecca A.; Weinheimer, Andrew J.; Wiggins, Elizabeth; Winstead, Edward; Wisthaler, Armin; Womack, Caroline; Brown, Steven S. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Wildfires are increasing in size across the western US, leading to increases in human smoke exposure and associated negative health impacts. The impact of biomass burning (BB) smoke, including wildfires, on regional air ...
  • Observed versus simulated OH reactivity during KORUS-AQ campaign: Implications for emission inventory and chemical environment in East Asia 
    Kim, Hyeonmin; Park, Rokjin J.; Kim, Saewung; Brune, William H.; Diskin, Glenn S.; Fried, Alan; Hall, Samuel R.; Weinheimer, Andrew J.; Wennberg, Paul; Wisthaler, Armin; Blake, Donald R.; Ullmann, Kirk (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We present a holistic examination of tropospheric OH reactivity (OHR) in South Korea using comprehensive NASA DC-8 airborne measurements collected during the Korea–United States Air Quality field study and chemical transport ...