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Atmospheric Environment, ISSN 1352-2310, 12/2019, Volume 219, p. 117039
Journal Article
Environmental Research Letters, ISSN 1748-9326, 2010, Volume 5, Issue 4, p. 44007
Journal Article
Journal of Geophysical Research: Atmospheres, ISSN 2169-897X, 11/2015, Volume 120, Issue 21, pp. 11368 - 11,390
Journal Article
Journal of Geophysical Research: Atmospheres, ISSN 2169-897X, 04/2014, Volume 119, Issue 7, pp. 4343 - 4364
We use the adjoint of a global 3‐D chemical transport model (GEOS‐Chem) to optimize ammonia (NH3) emissions in the U.S., European Union, and China by inversion... 
agriculture | ammonia | emission inventory | inverse method | REACTIVE NITROGEN | ATMOSPHERIC AMMONIA | ADJOINT MODEL | DAIRY-COWS | QUALITY | NITROGEN DEPOSITION | PARTICULATE AIR-POLLUTION | SCALE | BOUND-CONSTRAINED OPTIMIZATION | GEOS-CHEM | METEOROLOGY & ATMOSPHERIC SCIENCES | European union | Inventories | Fertilizing | Stockpiling | China | Adjoints | Inversions | Deposition
Journal Article
Atmospheric Chemistry and Physics, ISSN 1680-7316, 11/2014, Volume 14, Issue 21, pp. 11587 - 11609
We assess the standard operational nitrogen dioxide (NO2) data product (OMNO2, version 2.1) retrieved from the Ozone Monitoring Instrument (OMI) onboard NASA's... 
UNITED-STATES | GMI CHEMISTRY | TROPOSPHERIC NITROGEN-DIOXIDE | SATELLITE-OBSERVATIONS | EMISSIONS | INTEX-B | POWER-PLANTS | MAX-DOAS MEASUREMENTS | GOME MEASUREMENTS | GEOS-CHEM | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article
Atmospheric Chemistry and Physics, ISSN 1680-7316, 11/2016, Volume 16, Issue 22, pp. 14371 - 14396
Methane is a greenhouse gas emitted by a range of natural and anthropogenic sources. Atmospheric methane has been measured continuously from space since 2003,... 
HIGH-SPATIAL-RESOLUTION | TANSO-FTS | BARNETT SHALE REGION | CH4 EMISSIONS | TROPOSPHERIC METHANE | SENTINEL-5 PRECURSOR | GEOS-CHEM | TRACE GASES | METEOROLOGY & ATMOSPHERIC SCIENCES | ANTHROPOGENIC EMISSIONS | NATURAL-GAS PRODUCTION | Methane | Air pollution | Greenhouse gases
Journal Article
Environmental Science & Technology, ISSN 0013-936X, 05/2016, Volume 50, Issue 9, pp. 4712 - 4721
Journal Article
Atmospheric Chemistry and Physics, ISSN 1680-7316, 04/2014, Volume 14, Issue 7, pp. 3703 - 3727
We have examined the utility of retrieved column-averaged, dry-air mole fractions of CO2 (XCO2) from the Greenhouse Gases Observing Satellite (GOSAT) for... 
CARBON-DIOXIDE EXCHANGE | TRANSPORT | SATELLITE | PART 1 | MODEL | SCALE | UPDATED EMISSIONS | GEOS-CHEM | INVERSION | METEOROLOGY & ATMOSPHERIC SCIENCES | NORTH-AMERICA
Journal Article
ATMOSPHERIC CHEMISTRY AND PHYSICS, ISSN 1680-7316, 05/2018, Volume 18, Issue 9, pp. 6483 - 6491
We use observations of boundary layer methane from the SEAC(4)RS aircraft campaign over the Southeast US in August-September 2013 to estimate methane emissions... 
UNITED-STATES | SATELLITE-OBSERVATIONS | ISOPRENE | GOSAT | CHEMICAL-TRANSPORT MODEL | VALIDATION | CONSTRAINTS | GAS SYSTEMS | GEOS-CHEM | METEOROLOGY & ATMOSPHERIC SCIENCES | RETRIEVALS
Journal Article
Journal of Geophysical Research: Atmospheres, ISSN 0148-0227, 11/2012, Volume 117, Issue D21, p. n/a
We retrieved column‐averaged dry air mole fractions of atmospheric carbon dioxide () from backscattered short‐wave infrared (SWIR) sunlight measured by the... 
carbon dioxide | greenhouse gases | remote sensing | GOSAT | GEOS‐Chem | SPACE | LINE PARAMETERS | AIRCRAFT | TRANSPORT | METHANE | WFM-DOAS | COLUMN | CO2 RETRIEVAL | PART 1 | METEOROLOGY & ATMOSPHERIC SCIENCES | SPECTROSCOPIC DATABASE
Journal Article
Atmospheric Chemistry and Physics, ISSN 1680-7316, 2011, Volume 11, Issue 20, pp. 10743 - 10763
Presently only limited sets of tropospheric ammonia (NH3) measurements in the Earth's atmosphere have been reported from satellite and surface station... 
UNITED-STATES | AEROSOLS | TROPOSPHERIC EMISSION SPECTROMETER | INVENTORY | POLLUTION | SULFATE | NH3 | MODEL | MOLECULAR SPECTROSCOPIC DATABASE | GEOS-CHEM | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article
Journal of Geophysical Research: Atmospheres, ISSN 2169-897X, 10/2016, Volume 121, Issue 19, pp. 11,819 - 11,835
Aircraft and satellite observations indicate the presence of ppt (ppt ≡ pmol/mol) levels of BrO in the free troposphere with important implications for the... 
halogen | modeling | troposphere | mercury | ozone | GEOS‐Chem | GEOS-Chem | IODINE CHEMISTRY | BROMINE CHEMISTRY | HALOGEN CHEMISTRY | SEA-SALT AEROSOLS | GLOBAL OBSERVATIONS | NORTH-ATLANTIC | CONSTRAINTS | METEOROLOGY & ATMOSPHERIC SCIENCES | MARINE BOUNDARY-LAYER | IN-SITU | Ozone | Atmospheric chemistry | Atmospheric models | Mercury | Nitric oxide | Troposphere | Multiphase | Halogens | Aerosols | Reservoirs | Oxidation | Atmospherics
Journal Article
Environmental Research Letters, ISSN 1748-9318, 09/2016, Volume 11, Issue 9, p. 94023
In September-October 2015, ElNino and positive Indian Ocean Dipole conditions set the stage for massive fires in Sumatra and Kalimantan (Indonesian Borneo),... 
land use change fires | GEOS-chem adjoint | smoke exposure | MORTALITY | SYSTEM | DEFORESTATION | EMISSIONS | CONVERSION | INDONESIA | AIR | FOREST | ENVIRONMENTAL SCIENCES | POLLUTION | METEOROLOGY & ATMOSPHERIC SCIENCES
Journal Article
Environmental Science & Technology, ISSN 0013-936X, 08/2016, Volume 50, Issue 16, pp. 8731 - 8740
The stringent emission controls during the APEC 2014 (the Asia-Pacific Economic Cooperation Summit; November 5–11, 2014) offer a unique opportunity to quantify... 
UNITED-STATES | HETEROGENEOUS CHEMISTRY | ENVIRONMENTAL SCIENCES | AIR-QUALITY | ENGINEERING, ENVIRONMENTAL | NITROGEN DEPOSITION | CHEMICAL-TRANSPORT MODEL | ORGANIC AEROSOL | SULFUR-DIOXIDE | AMMONIA EMISSIONS | GEOS-CHEM | SOURCE APPORTIONMENT | Beijing | Particulate Matter | Environmental Monitoring | Air Pollutants | China
Journal Article
ATMOSPHERIC CHEMISTRY AND PHYSICS, ISSN 1680-7316, 08/2018, Volume 18, Issue 15, pp. 11185 - 11203
Recent field studies have suggested that sea-salt particulate nitrate (NITs) photolysis may act as a significant local source of nitrogen oxides (NOx) over... 
UNITED-STATES | CAPE-VERDE | NITROUS-ACID HONO | REACTIVE HALOGENS | EMISSIONS | GEOS-CHEM | METEOROLOGY & ATMOSPHERIC SCIENCES | BROMINE CHEMISTRY | ISOTOPIC COMPOSITION | ATMOSPHERIC NITRATE | NITRIC-ACID
Journal Article
Atmospheric Chemistry and Physics, ISSN 1680-7316, 2014, Volume 14, Issue 18, pp. 10363 - 10381
Journal Article
Atmospheric Environment, ISSN 1352-2310, 06/2014, Volume 89, pp. 52 - 63
Global chemistry-transport models (CTMs) typically use simplified parameterizations or relaxation to climatology to estimate the chemical behavior of the... 
Ozone hole | Stratospheric chemistry | GEOS-Chem | Model development | Model validation | ATMOSPHERIC CHEMISTRY | SULFURIC-ACID-SOLUTIONS | EMISSIONS | SIMULATION | PREINDUSTRIAL | LIFETIMES | ENVIRONMENTAL SCIENCES | 3-DIMENSIONAL MODEL | OZONE | RADICALS | PHOTOLYSIS | METEOROLOGY & ATMOSPHERIC SCIENCES | Models | Sulfates | Tropospheric chemistry | Ozone layer depletion | Analysis | Aeronautics
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 08/2011, Volume 38, Issue 15, p. n/a
We report new short‐wave infrared (SWIR) column retrievals of atmospheric methane (XCH4) from the Japanese Greenhouse Gases Observing SATellite (GOSAT) and... 
methane | GOSAT | TCCON | GEOS‐Chem | LINE PARAMETERS | GEOSCIENCES, MULTIDISCIPLINARY | CM(-1) | SPECTROSCOPIC DATABASE | CARBON-DIOXIDE | Atmospheric sciences | Troposphere | Methane | Retrieval | Satellites | Greenhouse effect | Air pollution | Latitude | Greenhouse gases | Three dimensional
Journal Article