Browsing FAS Scholarly Articles by Author "Chance, Kelly"
Now showing items 1-18 of 18
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Assessing sources of uncertainty in formaldehyde air mass factors over tropical South America: Implications for top-down isoprene emission estimates
Barkley, Michael P.; Kurosu, Thomas P.; Chance, Kelly; De Smedt, Isabelle; Van Roozendael, Michel; Arneth, Almut; Hagberg, Daniel; Guenther, Alex (American Geophysical Union, 2012)We use a nested-grid version of the GEOS-Chem chemistry transport model, constrained by isoprene emissions from the Model of Emissions of Gases and Aerosols from Nature (MEGAN), and the Lund-Potsdam-Jena General Ecosystem ... -
Can a 'state of the art' chemistry transport model simulate Amazonian tropospheric chemistry?
Barkley, Michael P.; Palmer, Paul I.; Ganzeveld, Laurens; Arneth, Almut; Hagberg, Daniel; Karl, Thomas; Guenther, Alex; Paulot, Fabien; Wennberg, Paul O.; Mao, Jingqiu; Kurosu, Thomas P.; Chance, Kelly; Müller, J.-F.; De Smedt, Isabelle; Van Roozendael, Michel; Chen, Dan; Wang, Yuxuan; Yantosca, Robert M. (American Geophysical Union, 2011)We present an evaluation of a nested high-resolution Goddard Earth Observing System (GEOS)-Chem chemistry transport model simulation of tropospheric chemistry over tropical South America. The model has been constrained ... -
Characterization of the OCO-2 instrument line shape functions using on-orbit solar measurements
Sun, Kang; Liu, Xiong; Nowlan, Caroline R.; Cai, Zhaonan; Chance, Kelly; Frankenberg, Christian; Lee, Richard A. M.; Pollock, Randy; Rosenberg, Robert; Crisp, David (European Geosciences Union, 2017)Accurately characterizing the instrument line shape (ILS) of the Orbiting Carbon Observatory-2 (OCO-2) is challenging and highly important due to its high spectral resolution and requirement for retrieval accuracy (0 : ... -
Evaluation of AIRS, IASI, and OMI ozone profile retrievals in the extratropical tropopause region using in situ aircraft measurements
Pittman, Jasna V.; Pan, Laura L.; Wei, Jennifer C.; Irion, Fredrick W.; Liu, Xiong; Maddy, Eric S.; Barnet, Christopher D.; Chance, Kelly; Gao, Ru-Shan (American Geophysical Union, 2009)We evaluate ozone profile retrievals from the Atmospheric Infrared Sounder (AIRS), the Infrared Atmospheric Sounding Interferometer (IASI), and the Ozone Monitoring Instrument (OMI) using in situ measurements collected on ... -
Evaluation of space-based constraints on global nitrogen oxide emissions with regional aircraft measurements over and downwind of eastern North America
Martin, Randall V.; Sioris, Christopher E.; Chance, Kelly; Ryerson, Thomas B.; Bertram, Timothy H.; Wooldridge, Paul J.; Cohen, Ronald C.; Neuman, J. Andy; Swanson, Aaron; Flocke, Frank M. (American Geophysical Union, 2006) -
First observations of iodine oxide from space
Saiz-Lopez, Alfonso; Chance, Kelly; Liu, Xiong; Kurosu, Thomas P.; Sander, Stanley P. (American Geophysical Union, 2007)We present retrievals of IO total columns from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) satellite instrument. We analyze data for October 2005 in the polar regions to demonstrate ... -
Hotspot of Glyoxal Over the Pearl River Delta Seen from the OMI Satellite Instrument: Implications for Emissions of Aromatic Hydrocarbons
Chan Miller, Christopher; Jacob, Daniel J.; González Abad, Gonzalo; Chance, Kelly (European Geosciences Union, 2016)The Pearl River delta (PRD) is a densely populated hub of industrial activity located in southern China. OMI (Ozone Monitoring Instrument) satellite observations reveal a large hotspot of glyoxal (CHOCHO) over the PRD that ... -
Improved Algorithm for MODIS Satellite Retrievals of Aerosol Optical Depths Over Western North America
Drury, Easan; Jacob, Daniel J.; Wang, Jun; Spurr, Robert J.D.; Chance, Kelly (American Geophysical Union, 2008)Quantitative evaluation of chemical transport models (CTMs) with aerosol optical depth (AOD) products retrieved from satellite backscattered reflectances can be compromised by inconsistent assumptions of aerosol optical ... -
Improvement of OMI ozone profile retrievals by simultaneously fitting Polar Mesospheric Clouds
Bak, Juseon; Liu, Xiong; Kim, Jae H.; Deland, Matthew T.; Chance, Kelly (European Geosciences Union, 2016)The presence of polar mesospheric clouds (PMCs) at summer high latitudes could affect the retrieval of ozone profiles using backscattered ultraviolet (UV) measurements. PMC-induced errors in ozone profile retrievals from ... -
Intercomparison of GOME, ozonesonde, and SAGE II measurements of ozone: Demonstration of the need to homogenize available ozonesonde data sets
Liu, Xiong; Chance, Kelly; Sioris, Christopher E.; Kurosu, Thomas P.; Newchurch, Michael J. (American Geophysical Union, 2006) -
Net ecosystem fluxes of isoprene over tropical South America inferred from Global Ozone Monitoring Experiment (GOME) observations of HCHO columns
Barkley, Michael P.; Palmer, Paul I.; Kuhn, Uwe; Kesselmeier, Juergen; Chance, Kelly; Kurosu, Thomas P.; Martin, Randall V.; Helmig, Detlev; Guenther, Alex (American Geophysical Union, 2008)We estimate isoprene emissions over tropical South America during 1997-2001 using column measurements of formaldehyde (HCHO) from the Global Ozone Monitoring Experiment (GOME) satellite instrument, the GEOS-Chem chemistry ... -
Nitrogen dioxide observations from the Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) airborne instrument: Retrieval algorithm and measurements during DISCOVER-AQ Texas 2013
Nowlan, Caroline R.; Liu, Xiong; Leitch, James W.; Chance, Kelly; González Abad, Gonzalo; Liu, Cheng; Zoogman, Peter; Cole, Joshua; Delker, Thomas; Good, William; Murcray, Frank; Ruppert, Lyle; Soo, Daniel; Follette-Cook, Melanie B.; Janz, Scott J.; Kowalewski, Matthew G.; Loughner, Christopher P.; Pickering, Kenneth E.; Herman, Jay R.; Beaver, Melinda R.; Long, Russell W.; Szykman, James J.; Judd, Laura M.; Kelley, Paul; Luke, Winston T.; Ren, Xinrong; Al-Saadi, Jassim A. (European Geosciences Union, 2016)The Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) airborne instrument is a test bed for upcoming air quality satellite instruments that will measure backscattered ultraviolet, visible and near-infrared ... -
Observing atmospheric formaldehyde (HCHO) from space: validation and intercomparison of six retrievals from four satellites (OMI, GOME2A, GOME2B, OMPS) with SEAC<sup>4</sup>RS aircraft observations over the southeast US
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; Gonzalez Abad, Gonzalo; Chance, Kelly; Li, Can; Ferrare, Richard; Fried, Alan; Hair, Johnathan W.; Hanisco, Thomsa F.; Richter, Dirk; Scarino, Amy Jo; Walega, James; Weibring, Petter; Wolfe, Glenn M. (European Geosciences Union, 2016)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 been extremely limited. Here we use highly accurate HCHO aircraft ... -
Ozone air quality measurement requirements for a geostationary satellite mission
Zoogman, Peter; Jacob, Daniel James; Chance, Kelly; Zhang, Lin; Le Sager, Philippe; Fiore, Arlene M.; Eldering, Annmarie; Liu, Xiong; Natraj, Vijay; Kulawik, Susan S. (Elsevier, 2011)We conduct an Observing System Simulation Experiment (OSSE) to test the ability of geostationary satellite measurements of ozone in different spectral regions to constrain surface ozone concentrations through data assimilation. ... -
Satellite observations of atmospheric methane and their value for quantifying methane emissions
Jacob, Daniel J.; Turner, Alexander J.; Maasakkers, Joannes D.; Sheng, Jianxiong; Sun, Kang; Liu, Xiong; Chance, Kelly; Aben, Ilse; McKeever, Jason; Frankenberg, Christian (European Geosciences Union, 2016)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 future ... -
Sensitivity of formaldehyde (HCHO) column measurements from a geostationary satellite to temporal variation of the air mass factor in East Asia
Kwon, Hyeong-Ahn; Park, Rokjin J.; Jeong, Jaein I.; Lee, Seungun; González Abad, Gonzalo; Kurosu, Thomas P.; Palmer, Paul I.; Chance, Kelly (European Geosciences Union, 2017)We examine upcoming geostationary satellite observations of formaldehyde (HCHO) vertical column densities (VCDs) in East Asia and the retrieval sensitivity to the temporal variation of air mass factors (AMFs) considering ... -
Smithsonian Astrophysical Observatory Ozone Mapping and Profiler Suite (SAO OMPS) formaldehyde retrieval
González Abad, Gonzalo; Vasilkov, Alexander; Seftor, Colin; Liu, Xiong; Chance, Kelly (European Geosciences Union, 2016)This paper presents our new formaldehyde (H2CO) retrievals, obtained from spectra recorded by the nadir instrument of the Ozone Mapping and Profiler Suite (OMPS) flown on board NASA's Suomi National Polar-orbiting Partnership ... -
Top-down isoprene emissions over tropical South America inferred from SCIAMACHY and OMI formaldehyde columns
Barkley, Michael P.; Smedt, Isabelle De; Van Roozendael, Michel; Kurosu, Thomas P.; Chance, Kelly; Arneth, Almut; Hagberg, Daniel; Guenther, Alex; Paulot, Fabien; Marais, Eloise; Mao, Jingqiu (American Geophysical Union, 2013)We use formaldehyde (HCHO) vertical column measurements from the Scanning Imaging Absorption spectrometer for Atmospheric Chartography (SCIAMACHY) and Ozone Monitoring Instrument (OMI), and a nested-grid version of the ...