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Park, Sang Seo
Environmental Radiation Monitoring Lab.
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Validations of satellite ozone profiles in austral spring using ozonesonde measurements in the Jang Bogo station, Antarctica

Author(s)
Lee, HanaChoi, TaejinKim, Seong-JoongBak, JuseonAhn, Dha HyunKramarova, Natalya AlekseyevnaPark, Sang SeoKim, JhoonKoo, Ja-Ho
Issued Date
2022-11
DOI
10.1016/j.envres.2022.114087
URI
https://scholarworks.unist.ac.kr/handle/201301/59752
Citation
ENVIRONMENTAL RESEARCH, v.214, no.3, pp.114087
Abstract
Using ozonesonde measurements from 2015 to 2018 at the Jang Bogo station located in the southeastern Antarctic region, we evaluate ozone profiles retrieved from the three satellite measurements that are widely used: Ozone Monitoring Instrument (OMI), Microwave Limb Sounder (MLS), and Ozone Mapping Profiler Suite (OMPS) data. For the fair validation, ozonesonde profiles are smoothed using the weighting function of each satellite retrieval algorithm (i.e., convolution process). Compared with limb-viewing MLS and OMPS ozone profiles, the OMI ozone profiles are relatively less qualified: coarser vertical resolution and larger inter-annual variation. Nevertheless, our validation reveals that the quality of all three satellite ozone profiles looks comparable; In general, difference from ozonesonde profile is similar to 1 ppm absolutely, and -20 to 30% relatively at maximum. This quantitative range well corresponds to previous work, meaning that our new validation confirms the reliability of satellite ozone profiles in the southeastern Antarctic region where the measurement data for the validation were not enough. Another interesting feature is the role of a priori ozone profile; Nadir-viewing OMI satellite can have qualified ozone profiles by a proper assumption of a priori ozone profile. Since the performance of limb-viewing ozone profiles is better, however, the careful usage of nadir-viewing ozone profile is still required. We think that the simultaneous usage of multiple satellite ozone profiles can contribute to better understanding of Antarctic ozone characteristics.
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
ISSN
0013-9351
Keyword (Author)
Jang Bogo stationOzonesondeOzone profileOMIMLSOMPS
Keyword
RETRIEVALSALGORITHMVORTEXDEPLETIONSOUNDERUPDATETRENDSHOLE

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