“…15, have been developed using either OMI measurements alone or in conjunction with other satellite measurements to improve sensitivity to near-surface ozone (e.g., Bowman, 2013;Cuesta et al, 2013;Hache et al, 2014) as summarized below. They have been used in tropospheric research (e.g., Sauvage et al, 2007;Ziemke et al, 2010;Cooper et al, 2014), for example to show evidence of decadal increases or trends in global tropospheric ozone, El Nino events during Aura (e.g., Chandra et al, 2009;Blunden and Ardnt, 2016), the 1-2 month Madden-Julian oscillation , and references therein), and urban pollution (Kar et al, 2010). It will be possible to employ similar approaches with other advanced sensors such as TROPOMI Figure 13.…”