The ground-based ozone observation instrument, Brewer spectrophotometer (Brewer), was used to evaluate the quality of the total ozone column (TOC) produced by multiple polar-orbit satellite measurements at three stations in Antarctica (King Sejong, Jang Bogo, and Zhongshan stations). While all satellite TOCs showed high correlations with Brewer TOCs (R = ~0.8 to 0.9), there are some TOC differences among satellite data in austral spring, which is mainly attributed to the bias of Atmospheric Infrared Sounder (AIRS) TOC. The quality of satellite TOCs is consistent between Level 2 and 3 data, implying that “which satellite TOC is used” can induce larger uncertainty than “which spatial resolution is used” for the investigation of the Antarctic TOC pattern. Additionally, the quality of satellite TOC is regionally different (e.g., OMI TOC is a little higher at the King Sejong station, but lower at the Zhongshan station than the Brewer TOC). Thus, it seems necessary to consider the difference of multiple satellite data for better assessing the spatiotemporal pattern of Antarctic TOC.
Bibliographical noteFunding Information:
Acknowledgments: This study was supported by the Korea Polar Research Institute (grant no. PE20070) and also supported by Korea Ministry of Environment (MOE) as “Public Technology Program based on Environmental Policy (2017000160001)”. The Brewer spectrophotometer TOC data presented in this study are openly available in the Korea Polar Data Center at doi:10.22663/KOPRI-KPDC-00001477.1 (For TOC at the King Sejong Station) , and doi:10.22663/KOPRI-KPDC-00001476.1 (For TOC at the Jang Bogo Station) . The Brewer spectrophotometer TOC data at the Zhongshan station data were obtained from the World Ozone and Ultraviolet Radiation Data Center (https://woudc.org, accessed on 20 April 2020). The multiple satellite observation data were prepared using the data archive of Goddard Earth Sciences Data and Information Services Center (https://disc.gsfc.nasa.gov, accessed on 8 April 2020). Finally, we appreciate the attention of the editor and two anonymous reviewers.
Funding: This research was funded by the Korea Polar Research Institute (grant no. PE20070).
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All Science Journal Classification (ASJC) codes
- Earth and Planetary Sciences(all)