Abstract
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 error 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 AIRS+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 error. AIRS+OMI and TES have slightly different biases (within 5 parts per billion) vs. the sondes. Both AIRS and OMI have wide swath widths (∼1650 km for AIRS; ∼2600 km for OMI) across satellite ground tracks. Consequently, the joint AIRS+OMI measurements have the potential to maintain TES vertical sensitivity while increasing coverage by 2 orders of magnitude, thus providing an unprecedented new data set with which to quantify the evolution of tropospheric ozone.
Highlights
Long-term records of the vertical distribution of ozone are essential for quantifying the impact of changes in tropospheric ozone on air quality and climate, driven recently by rapid industrialization in Asia concurrent with reductions in ozone precursor emissions in North America and Europe (Jacob et al, 1999; Wild and Akimoto, 2001; Akimoto, 2003; Worden et al, 2008, 2011; Fischer et al, 2011)
The Tropospheric Emission Spectrometer (TES) record has played an important role in evaluating chemistry–climate model simulations of present-day ozone distributions and their ozone radiative forcing as part of the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5; Bowman et al, 2013; Shindell et al, 2013; Young et al, 2013; IPCC, 2014) and in providing constraints on the tropospheric chemistry through data assimilation (Miyazaki et al, 2012, 2014, 2015)
The υ3 band has been exploited in the tropospheric O3 soundings by a suite of thermal infrared (TIR) satellite-borne, nadir-viewing instruments, including Atmospheric Infrared Sounder (AIRS) (Susskind et al, 2003, 2014; Wei et al, 2010), Cross-track Infrared Sounder (CrIS) (Gambacorta et al, 2013), and Infrared Atmospheric Sounding Interferometer (IASI) (Boynard et al, 2009, 2016; Dufour et al, 2012; Oetjen et al, 2014, 2016), as well as the solar occultation satellite-borne (Bernath et al, 2005; Bernath, 2017), balloon-borne (Toon, 1991; Fu et al, 2007a), and ground-based (Hannigan et al, 2011) Fourier transform spectrometer (FTS) that quantify the stratospheric ozone layer and the species playing an essential role in the stratospheric ozone chemistry (Fu et al, 2007b, 2009, 2011; Sung et al, 2007; Wunch et al, 2007; Allen, 2009; Boone, 2013; Nassar, 2013; Griffin et al, 2017)
Summary
Long-term records of the vertical distribution of ozone are essential for quantifying the impact of changes in tropospheric ozone on air quality and climate, driven recently by rapid industrialization in Asia concurrent with reductions in ozone precursor emissions in North America and Europe (Jacob et al, 1999; Wild and Akimoto, 2001; Akimoto, 2003; Worden et al, 2008, 2011; Fischer et al, 2011). The υ3 band has been exploited in the tropospheric O3 soundings by a suite of TIR satellite-borne, nadir-viewing instruments, including AIRS (Susskind et al, 2003, 2014; Wei et al, 2010), Cross-track Infrared Sounder (CrIS) (Gambacorta et al, 2013), and IASI (Boynard et al, 2009, 2016; Dufour et al, 2012; Oetjen et al, 2014, 2016), as well as the solar occultation satellite-borne (Bernath et al, 2005; Bernath, 2017), balloon-borne (Toon, 1991; Fu et al, 2007a), and ground-based (Hannigan et al, 2011) FTSs that quantify the stratospheric ozone layer and the species playing an essential role in the stratospheric ozone chemistry (Fu et al, 2007b, 2009, 2011; Sung et al, 2007; Wunch et al, 2007; Allen, 2009; Boone, 2013; Nassar, 2013; Griffin et al, 2017). For the 2006 time frame, we obtained 424 sonde–AIRS–OMI triads and 556 sonde–TES measurement pairs
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
