Browsing Kjemisk institutt by Author "Crawford, James H."

Now showing items 1-8 of 8

  • An investigation of petrochemical emissions during KORUS-AQ: Ozone production, reactive nitrogen evolution, and aerosol production 
    Lee, Young Ro; Huey, L. Gregory; Tanner, David J.; Takeuchi, Masayuki; Qu, Hang; Liu, Xiaoxi; Ng, Nga Lee; Crawford, James H.; Fried, Alan; Richter, Dirk; Simpson, Isobel J.; Blake, Donald R.; Blake, Nicola J.; Meinardi, Simone; Kim, Saewung; Diskin, Glenn S.; Digangi, Joshua P.; Choi, Yonghoon; Pusede, Sally E.; Wennberg, Paul O.; Kim, Michelle J.; Crounse, John D.; Teng, Alex P.; Cohen, Ronald C.; Romer, Paul S.; Brune, William; Wisthaler, Armin; Mikoviny, Tomas; Jimenez, Jose L.; Campuzano-Jost, Pedro; Nault, Benjamin A.; Weinheimer, Andrew; Hall, Samuel R.; Ullmann, Kirk (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Emissions and secondary photochemical products from the Daesan petrochemical complex (DPCC), on the west coast of South Korea, were measured from the NASA DC-8 research aircraft during the Korea-United States Air Quality ...
  • Biogenic isoprene emissions driven by regional weather predictions using different initialization methods: Case studies during the SEAC4RS and DiSCOVER-AQ airborne campaigns 
    Huang, Min; Carmichael, Gregory R.; Crawford, James H.; Wisthaler, Armin; Zhan, Xiwu; Hain, Christopher R; Lee, Pius; Guenther, Alex B (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Land and atmospheric initial conditions of the Weather Research and Forecasting (WRF) model are often interpolated from a different model output. We perform case studies during NASA's SEAC4RS and DISCOVER-AQ Houston airborne ...
  • 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 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 ...
  • New insights into the column CH2O/NO2 ratio as an indicator of near-surface ozone sensitivity 
    Schroeder, Jason R.; Crawford, James H.; Fried, Alan; Walega, James; Weinheimer, Andrew; Wisthaler, Armin; Muller, Markus; Mikoviny, Tomas; Chen, Gao; Shook, Michael; Blake, Donald R; Tonnesen, Gail S (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Satellite-based measurements of the column CH2O/NO2 ratio have previously been used to estimate near-surface ozone (O3) sensitivity (i.e., NOx or VOC limited), and the forthcoming launch of air quality-focused geostationary ...
  • Observation-based modeling of ozone chemistry in the Seoul metropolitan area during the Korea-United States Air Quality Study (KORUS-AQ) 
    Schroeder, Jason R.; Crawford, James H.; Ahn, Joon-Young; Chang, Limseok; Fried, Alan; Walega, James; Weinheimer, Andrew; Montzka, Denise D.; Hall, Samuel R.; Ullmann, Kirk; Wisthaler, Armin; Mikoviny, Tomas; Chen, Gao; Blake, Donald R.; Blake, Nicola J.; Hughes, Stacey C.; Meinardi, Simone; Diskin, Glenn; Digangi, Joshua P.; Choi, Yonghoon; Pusede, Sally E.; Huey, Greg L.; Tanner, David J.; Kim, Michelle; Wennberg, Paul O. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The Seoul Metropolitan Area (SMA) has a population of 24 million and frequently experiences unhealthy levels of ozone (O3). In this work, measurements taken during the Korea-United States Air Quality Study (KORUS-AQ, 2016) ...
  • Observations of atmospheric oxidation and ozone production in South Korea 
    Brune, William H.; Miller, David O.; Thames, Alexander B.; Brosius, Alexandra L.; Barletta, Barbara; Blake, Donald R.; Blake, Nicola J.; Chen, Gao; Choi, Yonghoon; Crawford, James H.; Digangi, Joshua P.; Diskin, Glenn; Fried, Alan; Hall, Samuel R.; Hanisco, Thomas F.; Huey, Greg L.; Hughes, Stacey C.; Kim, Michelle; Meinardi, Simone; Montzka, Denise D.; Pusede, Sally E.; Schroeder, Jason R.; Teng, Alex; Tanner, David J.; Ullmann, Kirk; Walega, James; Weinheimer, Andrew; Wisthaler, Armin; Wennberg, Paul O. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    South Korea routinely experiences poor air quality with ozone and small particles exceeding air quality standards. To build a better understanding of this problem, in 2016, the KORea-United States cooperative Air Quality ...