Search Results - "Travis, Katherine R"

The Framework for 0-D Atmospheric Modeling (F0AM) v3.1 by Wolfe, Glenn M, Marvin, Margaret R, Roberts, Sandra J, Travis, Katherine R, Liao, Jin

“…The Framework for 0-D Atmospheric Modeling (F0AM) is a flexible and user-friendly MATLAB-based platform for simulation of atmospheric chemistry systems. The…”
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High-resolution inversion of OMI formaldehyde columns to quantify isoprene emission on ecosystem-relevant scales: application to the southeast US by Kaiser, Jennifer, Jacob, Daniel J, Zhu, Lei, Travis, Katherine R, Fisher, Jenny A, González Abad, Gonzalo, Zhang, Lin, Zhang, Xuesong, Fried, Alan, Crounse, John D, St. Clair, Jason M, Wisthaler, Armin

“…Isoprene emissions from vegetation have a large effect on atmospheric chemistry and air quality. “Bottom-up” isoprene emission inventories used in atmospheric…”
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Glyoxal Yield from Isoprene Oxidation and Relation to Formaldehyde: Chemical Mechanism, Constraints from SENEX Aircraft Observations, and Interpretation of OMI Satellite Data by Miller, Christopher Chan, Jacob, Daniel J., Marais, Eloise A., Yu, Karen, Travis, Katherine R., Kim, Patrick S., Fisher, Jenny A., Zhu, Lei, Wolfe, Glenn M., Hanisco, Thomas F., Keutsch, Frank N., Kaiser, Jennifer, Min, Kyung-Eun, Brown, Steven S., Washenfelder, Rebecca A., Gonzalez Abad, Gonzalo, Chance, Kelly

“…Glyoxal (CHOCHO) is produced in the atmosphere by the oxidation of volatile organic compounds(VOCs). Like formaldehyde (HCHO), another VOC oxidation product,…”
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Global simulation of tropospheric chemistry at 12.5 km resolution: performance and evaluation of the GEOS-Chem chemical module (v10-1) within the NASA GEOS Earth system model (GEOS-5 ESM) by Hu, Lu, Keller, Christoph A., Long, Michael S., Sherwen, Tomás, Auer, Benjamin, Da Silva, Arlindo, Nielsen, Jon E., Pawson, Steven, Thompson, Matthew A., Trayanov, Atanas L., Travis, Katherine R., Grange, Stuart K., Evans, Mat J., Jacob, Daniel J.

“…We present a full-year online global simulation of tropospheric chemistry (158 coupled species) at cubed-sphere c720 (∼12.5×12.5km2) resolution in the NASA…”
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Why Do Models Overestimate Surface Ozone in the Southeast United States? by Travis, Katherine R., Jacob, Daniel J., Fisher, Jenny A., Kim, Patrick S., Marais, Eloise A., Zhu, Lei, Yu, Karen, Miller, Christopher C., Yantosca, Robert M., Sulprizio, Melissa P., Thompson, Anne M., Wennberg, Paul O., Crounse, John D., Clair, Jason M. St, Cohen, Ronald C., Laughner, Joshua L., Dibb, Jack E., Hall, Samuel R., Ullmann, Kirk, Wolfe, Glenn M., Pollack, Illana B., Peischl, Jeff, Neuman, Jonathan A., Zhou, and Xianliang

“…Ozone pollution in the Southeast US involves complex chemistry driven by emissions of anthropogenic nitrogen oxide radicals (NO(x) triple bond NO + NO2) and…”
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Systematic bias in evaluating chemical transport models with maximum daily 8 h average (MDA8) surface ozone for air quality applications: a case study with GEOS-Chem v9.02 by Travis, Katherine R, Jacob, Daniel J

“…Chemical transport models frequently evaluate their simulation of surface ozone with observations of the maximum daily 8 h average (MDA8) concentration, which…”
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Using satellite observations of tropospheric NO2 columns to infer long-term trends in US NOx emissions: the importance of accounting for the free tropospheric NO2 background by Silvern, Rachel F, Jacob, Daniel J, Mickley, Loretta J, Sulprizio, Melissa P, Travis, Katherine R, Marais, Eloise A, Cohen, Ronald C, Laughner, Joshua L, Choi, Sungyeon, Joiner, Joanna, Lamsal, Lok N

“…The National Emission Inventory (NEI) of the US Environmental Protection Agency (EPA) reports a steady decrease in US NOx emissions over the 2005–2017 period…”
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Limitations in representation of physical processes prevent successful simulation of PM2.5 during KORUS-AQ by Travis, Katherine R, Crawford, James H, Chen, Gao, Jordan, Carolyn E, Nault, Benjamin A, Kim, Hwajin, Jimenez, Jose L, Campuzano-Jost, Pedro, Dibb, Jack E, Jung-Hun Woo, Kim, Younha, Zhai, Shixian, Wang, Xuan, McDuffie, Erin E, Luo, Gan, Yu, Fangqun, Kim, Saewung, Simpson, Isobel J, Blake, Donald R, Chang, Limseok, Kim, Michelle J

“…High levels of fine particulate matter (PM2.5) pollution in East Asia often exceed local air quality standards. Observations from the Korea–United States Air…”
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Observing atmospheric formaldehyde (HCHO) from space: validation and intercomparison of six retrievals from four satellites (OMI, GOME2A, GOME2B, OMPS) with SEAC4RS aircraft observations over the southeast US by Zhu, Lei, Jacob, Daniel J, Kim, Patrick S, Fisher, Jenny A, Yu, Karen, Travis, Katherine R, Mickley, Loretta J, Yantosca, Robert M, Sulprizio, Melissa P, De Smedt, Isabelle, Gonzalo González Abad, Chance, Kelly, Li, Can, Ferrare, Richard, Fried, Alan, Hair, Johnathan W, Hanisco, Thomas F, Richter, Dirk, Scarino, Amy Jo, Walega, James, Weibring, Petter, Wolfe, Glenn M

“…Formaldehyde (HCHO) column data from satellites are widely used as a proxy for emissions of volatile organic compounds (VOCs), but validation of the data has…”
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Impact of improved representation of volatile organic compound emissions and production of NOx reservoirs on modeled urban ozone production by Travis, Katherine R, Nault, Benjamin A, Crawford, James H, Bates, Kelvin H, Blake, Donald R, Cohen, Ronald C, Fried, Alan, Hall, Samuel R, Huey, L Gregory, Young Ro Lee, Meinardi, Simone, Kyung-Eun, Min, Simpson, Isobel J, Ullman, Kirk

“…The fraction of urban volatile organic compound (VOC) emissions attributable to fossil fuel combustion has been declining in many parts of the world, resulting…”
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Constraining Remote Oxidation Capacity with ATom Observations by Travis, Katherine R., Heald, Colette L., Allen, Hannah M., Apel, Eric C., Arnold, Stephen R., Blake, Donald R., Brune, William H., Chen, Xin, Commane, Róisín, Crounse, John D., Daube, Bruce C., Diskin, Glenn S., Elkins, James W., Evans, Mathew J., Hall, Samuel R., Hintsa, Eric J., Hornbrook, Rebecca S., Kasibhatla, Prasad S., Kim, Michelle J., Luo, Gan, McKain, Kathryn, Millet, Dylan B., Moore, Fred L., Peischl, Jeffrey, Ryerson, Thomas B., Sherwen, Tomás, Thames, Alexander B., Ullmann, Kirk, Wang, Xuan, Wennberg, Paul O., Wolfe, Glenn M., Yu, Fangqun

“…The global oxidation capacity, defined as the tropospheric mean concentration of the hydroxyl radical (OH), controls the lifetime of reactive trace gases in…”
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Relating geostationary satellite measurements of aerosol optical depth (AOD) over East Asia to fine particulate matter (PM 2.5 ): insights from the KORUS-AQ aircraft campaign and GEOS-Chem model simulations by Zhai, Shixian, Jacob, Daniel J., Brewer, Jared F., Li, Ke, Moch, Jonathan M., Kim, Jhoon, Lee, Seoyoung, Lim, Hyunkwang, Lee, Hyun Chul, Kuk, Su Keun, Park, Rokjin J., Jeong, Jaein I., Wang, Xuan, Liu, Pengfei, Luo, Gan, Yu, Fangqun, Meng, Jun, Martin, Randall V., Travis, Katherine R., Hair, Johnathan W., Anderson, Bruce E., Dibb, Jack E., Jimenez, Jose L., Campuzano-Jost, Pedro, Nault, Benjamin A., Woo, Jung-Hun, Kim, Younha, Zhang, Qiang, Liao, Hong

“…Geostationary satellite measurements of aerosol optical depth (AOD) over East Asia from the Geostationary Ocean Color Imager (GOCI) and Advanced Himawari…”
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Using observed urban NOx sinks to constrain VOC reactivity and the ozone and radical budget in the Seoul Metropolitan Area by Nault, Benjamin A, Travis, Katherine R, Crawford, James H, Blake, Donald R, Campuzano-Jost, Pedro, Cohen, Ronald C, DiGangi, Joshua P, Diskin, Glenn S, Hall, Samuel R, Huey, L Gregory, Jimenez, Jose L, Kyung-Eun, Min, Young Ro Lee, Simpson, Isobel J, Ullmann, Kirk, Wisthaler, Armin

“…Ozone (O3) is an important secondary pollutant that impacts air quality and human health. Eastern Asia has high regional O3 background due to the numerous…”
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Interpreting Geostationary Environment Monitoring Spectrometer (GEMS) geostationary satellite observations of the diurnal variation in nitrogen dioxide (NO2) over East Asia by Laura Hyesung Yang, Jacob, Daniel J, Dang, Ruijun, Oak, Yujin J, Lin, Haipeng, Kim, Jhoon, Zhai, Shixian, Colombi, Nadia K, Pendergrass, Drew C, Beaudry, Ellie, Shah, Viral, Xu, Feng, Yantosca, Robert M, Chong, Heesung, Park, Junsung, Lee, Hanlim, Won-Jin, Lee, Kim, Soontae, Kim, Eunhye, Travis, Katherine R, Crawford, James H, Liao, Hong

“…Nitrogen oxide radicals (NOx≡NO+NO2) emitted by fuel combustion are important precursors of ozone and particulate matter pollution, and NO2 itself is harmful…”
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Emissions of C6-C8 aromatic compounds in the United States: Constraints from tall tower and aircraft measurements by Hu, Lu, Millet, Dylan B., Baasandorj, Munkhbayar, Griffis, Timothy J., Travis, Katherine R., Tessum, Christopher W., Marshall, Julian D., Reinhart, Wesley F., Mikoviny, Tomas, Müller, Markus, Wisthaler, Armin, Graus, Martin, Warneke, Carsten, de Gouw, Joost

“…We present two full years of continuous C6–C8 aromatic compound measurements by PTR‐MS at the KCMP tall tower (Minnesota, US) and employ GEOS‐Chem nested grid…”
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Evidence of haze-driven secondary production of supermicrometer aerosol nitrate and sulfate in size distribution data in South Korea by Schlosser, Joseph S, Stahl, Connor, Sorooshian, Armin, Le, Yen Thi-Hoang, Jeon, Ki-Joon, Xian, Peng, Jordan, Carolyn E, Travis, Katherine R, Crawford, James H, Gong, Sung Yong, Shin, Hye-Jung, Song, In-Ho, Youn, Jong-sang

“…This study reports measurements of size-resolved aerosol composition at a site in Incheon along with other aerosol characteristics for contrast between Incheon…”
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Impact of evolving isoprene mechanisms on simulated formaldehyde: An inter-comparison supported by in situ observations from SENEX by Marvin, Margaret R., Wolfe, Glenn M., Salawitch, Ross J., Canty, Timothy P., Roberts, Sandra J., Travis, Katherine R., Aikin, Kenneth C., de Gouw, Joost A., Graus, Martin, Hanisco, Thomas F., Holloway, John S., Hübler, Gerhard, Kaiser, Jennifer, Keutsch, Frank N., Peischl, Jeff, Pollack, Ilana B., Roberts, James M., Ryerson, Thomas B., Veres, Patrick R., Warneke, Carsten

“…Isoprene oxidation schemes vary greatly among gas-phase chemical mechanisms, with potentially significant ramifications for air quality modeling and…”
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Sensitivity to grid resolution in the ability of a chemical transport model to simulate observed oxidant chemistry under high-isoprene conditions by Yu, Karen, Jacob, Daniel J, Fisher, Jenny A, Kim, Patrick S, Marais, Eloise A, Miller, Christopher C, Travis, Katherine R, Zhu, Lei, Yantosca, Robert M, Sulprizio, Melissa P, Cohen, Ron C, Dibb, Jack E, Fried, Alan, Mikoviny, Tomas, Ryerson, Thomas B, Wennberg, Paul O, Wisthaler, Armin

“…Formation of ozone and organic aerosol in continental atmospheres depends on whether isoprene emitted by vegetation is oxidized by the high-NOx pathway (where…”
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Observing atmospheric formaldehyde (HCHO) from space: validation and intercomparison of six retrievals from four satellites (OMI, GOME2A, GOME2B, OMPS) with SEAC 4 RS aircraft observations over the Southeast US by Zhu, Lei, Jacob, Daniel J, Kim, Patrick S, Fisher, Jenny A, Yu, Karen, Travis, Katherine R, Mickley, Loretta J, Yantosca, Robert M, Sulprizio, Melissa P, De Smedt, Isabelle, Abad, Gonzalo Gonzalez, Chance, Kelly, Li, Can, Ferrare, Richard, Fried, Alan, Hair, Johnathan W, Hanisco, Thomas F, Richter, Dirk, Scarino, Amy Jo, Walega, James, Weibring, Petter, Wolfe, Glenn M

“…Formaldehyde (HCHO) column data from satellites are widely used as a proxy for emissions of volatile organic compounds (VOCs) but validation of the data has…”
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Why do Models Overestimate Surface Ozone in the Southeastern United States? by Travis, Katherine R, Jacob, Daniel J, Fisher, Jenny A, Kim, Patrick S, Marais, Eloise A, Zhu, Lei, Yu, Karen, Miller, Christopher C, Yantosca, Robert M, Sulprizio, Melissa P, Thompson, Anne M, Wennberg, Paul O, Crounse, John D, St Clair, Jason M, Cohen, Ronald C, Laughner, Joshua L, Dibb, Jack E, Hall, Samuel R, Ullmann, Kirk, Wolfe, Glenn M, Pollack, Illana B, Peischl, Jeff, Neuman, Jonathan A, Zhou, Xianliang

“…Ozone pollution in the Southeast US involves complex chemistry driven by emissions of anthropogenic nitrogen oxide radicals (NO ≡ NO + NO ) and biogenic…”
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