Articles | Volume 12, issue 10
Research article
23 Oct 2019
Research article |  | 23 Oct 2019

Underestimation of column NO2 amounts from the OMI satellite compared to diurnally varying ground-based retrievals from multiple PANDORA spectrometer instruments

Jay Herman, Nader Abuhassan, Jhoon Kim, Jae Kim, Manvendra Dubey, Marcelo Raponi, and Maria Tzortziou


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jay Herman on behalf of the Authors (16 Jul 2019)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (16 Aug 2019) by Folkert Boersma
AR by Jay Herman on behalf of the Authors (20 Aug 2019)  Author's response    Manuscript
ED: Publish as is (11 Sep 2019) by Folkert Boersma
Short summary
Total column NO2 (TCNO2) from the Ozone Measuring Instrument (OMI) is compared for 14 sites with ground-based PANDORA spectrometer instruments making direct-sun measurements. These sites have high TCNO2, causing significant air quality problems that can affect human health. OMI almost always underestimates the amount of TCNO2 by 50 to 100 %. OMI's large field of view (FOV) is the most likely factor when comparing OMI TCNO2 to retrievals with PANDORA. OMI misses higher afternoon values of TCNO2.