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Discussion papers | Copyright
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 16 May 2018

Research article | 16 May 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Measurement Techniques (AMT).

Retrievals of Tropospheric Ozone Profiles from the Synergic Observation of AIRS and OMI: Methodology and Validation

Dejian Fu1, Susan S. Kulawik2, Kazuyuki Miyazaki3, Kevin W. Bowman1, John R. Worden1, Annmarie Eldering1, Nathaniel J. Livesey1, Joao Teixeira1, Fredrick W. Irion1, Robert L. Herman1, Gregory B. Osterman1, Xiong Liu4, Pieternel F. Levelt5,6, Anne M. Thompson7, and Ming Luo1 Dejian Fu et al.
  • 1NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
  • 2Bay Area Environmental Research Institute/NASA Ames Research Center, Mountain View, California, USA
  • 3Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
  • 4Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, USA
  • 5Royal Netherlands Meteorological Institute, De Bilt, 3731 GA, the Netherlands
  • 6Faculty of Civil Engineering and Geosciences, University of Technology Delft, Delft, 2628 CN, the Netherlands
  • 7NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

Abstract. The Tropospheric Emission Spectrometer (TES) on the A-Train Aura satellite was designed to profile tropospheric ozone and its precursors, taking measurements from 2004 to 2018. Starting in 2008, TES global sampling of tropospheric ozone was gradually reduced in latitude with global coverage stopping in 2011. To extend the record of TES, this work presents a multispectral approach that will provide O3 data products with vertical resolution and measurement uncertainty similar to TES by combining the single-footprint thermal infrared (TIR) hyperspectral radiances from the Aqua Atmospheric Infrared Sounder (AIRS) instrument and the ultraviolet (UV) channels from the Aura Ozone Monitoring Instrument (OMI). The joint AIR+OMI O3 retrievals are processed through the MUlti-SpEctra, MUlti-SpEcies, MUlti-SEnsors (MUSES) retrieval algorithm. Comparisons of collocated joint AIRS+OMI and TES to ozonesonde measurements show that both systems have similar errors, with mean and standard deviation of the differences well within the estimated measurement uncertainty. AIRS+OMI and TES have slightly different biases (within 5 parts per billion) versus the sondes. Both AIRS and OMI have wide swath widths (~1,650km for AIRS; ~2,600km for OMI) across satellite ground tracks. Consequently, the joint AIRS+OMI measurements have the potential to maintain TES vertical sensitivity while increasing coverage by two orders of magnitude, thus providing an unprecedented new dataset to quantify the evolution of tropospheric ozone.

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Dejian Fu et al.
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Dejian Fu et al.
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