04 Oct 2022
04 Oct 2022
Status: this preprint is currently under review for the journal ESSD.

Global Ozone Monitoring Experiment-2 (GOME-2) Daily and Monthly Level 3 Products of Atmospheric Trace Gas Columns

Ka Lok Chan1,2, Pieter Valks2, Klaus-Peter Heue2,3, Ronny Lutz2, Pascal Hedelt2, Diego Loyola2, Gaia Pinardi4, Michel Van Roozendael4, François Hendrick4, Thomas Wagner5, Vinod Kumar5, Alkis Bais6, Ankie Piters7, Hitoshi Irie8, Yugo Kanaya9, Hisahiro Takashima10, Yongjoo Choi11, Kihong Park12, Jihyo Chong12,13, Alexander Cede14, Udo Frieß15, Andreas Richter16, Jianzhong Ma17, Nuria Benavent18, Robert Holla19, Oleg Postylyakov20, Claudia Rivera Cárdenas21, and Mark Wenig22 Ka Lok Chan et al.
  • 1Rutherford Appleton Laboratory Space, Harwell Oxford, United Kingdom
  • 2Remote Sensing Technology Institute, German Aerospace Center (DLR), Oberpfaffenhofen, Germany
  • 3Department of Aerospace and Geodesy, Technical University of Munich (TUM), Munich, Germany
  • 4Royal Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
  • 5Max Planck Institute for Chemistry (MPIC), Mainz, Germany
  • 6Laboratory of Atmospheric Physics, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
  • 7Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands
  • 8Center for Environmental Remote Sensing (CEReS), Chiba University, Chiba, Japan
  • 9Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan
  • 10Faculty of Science, Fukuoka University, Fukuoka , Japan
  • 11Department of Environmental Science, Hankuk University of Foreign Studies, Seoul, Korea
  • 12School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Gwangju, Korea
  • 13Environmental Management Division, Yeongsan River Basin Environmental Office, Gwangju, Korea
  • 14LuftBlick, Kreith, Austria
  • 15Institute of Environmental Physics, University of Heidelberg, Heidelberg, Germany
  • 16Institute of Environmental Physics, University of Bremen, Bremen, Germany
  • 17Chinese Academy of Meteorology Science, China Meteorological Administration, Beijing, China
  • 18Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano (CSIC), Madrid, Spain
  • 19Deutscher Wetterdienst (DWD), Hohenpeißenberg, Germany
  • 20A.M. Obukhov Institute of Atmospheric Physics (IAP), Russian Academy of Sciences (RAS), Moscow, Russia
  • 21Instituto de Ciencias de la Atmósfera y Cambio Climático, Universidad Nacional Autónoma de México, Mexico City, Mexico
  • 22Meteorological Institute (MIM), Ludwig-Maximilians-Universität München (LMU), Munich, Germany

Abstract. We introduce the new GOME-2 daily and monthly level 3 product of total column ozone (O3), total and tropospheric column nitrogen dioxide (NO2), total column water vapour, total column bromine oxide (BrO), total column formaldehyde (HCHO) and total column sulphur dioxide (SO2). The GOME-2 level 3 products are aimed to provide easily translatable and user-friendly data sets to the scientific community for scientific progress as well as satisfying public interest. The purpose of this paper is to present the theoretical basis as well as the verification and validation of the GOME-2 daily and monthly level 3 products.

The GOME-2 level 3 products are produced using the overlapping area weighting method. Details of the gridding algorithm are presented. The spatial resolution of the GOME-2 level 3 products is selected based on sensitivity study. The consistency of the resulting level 3 products among three GOME-2 sensors is investigated through time series of global averages, zonal averages, and bias. The accuracy of the products is validated by comparing to ground-based observations. The verification and validation results show that the GOME-2 level 3 products are consistent with the level 2 data. Small discrepancies are found among three GOME-2 sensors, which are mainly caused by the differences in instrument characteristic and level 2 processor. The comparison of GOME-2 level 3 products to ground-based observations in general shows very good agreement, indicating the products are consistent and fulfil the requirements to serve the scientific community and general public.

Ka Lok Chan et al.

Status: open (until 29 Nov 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2022-315', Anonymous Referee #1, 04 Nov 2022 reply
  • RC2: 'Comment on essd-2022-315', Anonymous Referee #2, 20 Nov 2022 reply
  • RC3: 'Comment on essd-2022-315', Lawrence Flynn, 21 Nov 2022 reply

Ka Lok Chan et al.

Data sets

GOME-2 NO2, H2O, O3, SO2, HCHO and BrO Level 3 daily and monthly gridded products Ka Lok Chan and Pieter Valks

Ka Lok Chan et al.


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Short summary
This paper is to present the theoretical basis as well as the verification and validation of the GOME-2 daily and monthly level 3 products.