Evaluation of Total Ozone Column from Multiple Satellite Measurements in the Antarctic Using the Brewer Spectrophotometer

• Published in: Remote Sensing
• Main Authors: Songkang Kim, Sang-Jong Park, Hana Lee, Dha Hyun Ahn, Yeonjin Jung, Taejin Choi, Bang Yong Lee, Seongjoong Kim, Ja-Ho Koo
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2021
• Subjects: ozone; Antarctica; Brewer spectrophotometer; satellite; Science; Q; Antarctic; Austral; Bogo; King Sejong Station; The Antarctic; Zhongshan; Zhongshan Station; Antarc*
• Online Access: https://doi.org/10.3390/rs13081594; https://doaj.org/article/4f23d8bc2bf344e593b0b8bb1cdb764e

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.