The variation in aerosol optical depth over the polar stations of Korea

Ja Ho Koo, Taejin Choi, Yeseul Cho, Hana Lee, Jaemin Kim, Dha Hyun Ahn, Jhoon Kim, Yun Gon Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Using NASA’s Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA-2) reanalysis for aerosol optical depth (AOD) and satellite-observed carbon monoxide (CO) data, we examined the basic pattern of AOD variations over the three polar stations of Korea: the Jangbogo and King Sejong stations in Antarctica and the Dasan station in the Arctic. AOD values at the King Sejong and Dasan stations show maximum peaks in spring and appear to be associated with large amounts of atmospheric CO emitted from natural burning and biomass burning. The Jangbogo station shows a much lower AOD than the other two stations and does not appear to be strongly affected by the transport of airborne particles generated from mid-latitude regions. All three polar stations show an increasing trend in AOD in general, indicating that the polar background air quality is becoming polluted.

Original languageEnglish
Pages (from-to)3202-3210
Number of pages9
JournalAerosol and Air Quality Research
Volume18
Issue number12
DOIs
Publication statusPublished - 2018 Dec

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution

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