Total ozone characteristics associated with regional meteorology in West Antarctica

Koo, Ja Ho; Choi, Taejin; Lee, Hana; Kim, Jaemin; Ahn, Dha Hyun; Kim, Jhoon; Kim, Young Ha; Yoo, Changhyun; Hong, Hyunkee; Moon, Kyungsun; Lee, Yun Gon

doi:10.1016/j.atmosenv.2018.09.056

Cited by 4 publications

(2 citation statements)

References 58 publications

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“…end of November in 2001, 2002 and 2003) are clearly captured by the Maitri measurements. A similar distribution of ozone can be also found in the measurements at the Sejong station (62° S, 58° W) in the western Antarctica (Koo et al, 2018). Note that the total ozone changes inside the vortex are largely decided by diabatic descent inside the vortex, the adiabatic motions related to planetary wave activity, and convergence or divergence related to the changes of tropospheric height.…”

Section: Temporal Evolution Of Ozonesupporting

confidence: 80%

The ozone hole measurements at the Indian station Maitri in Antarctica

et al. 2021

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Section: Temporal Evolution Of Ozonesupporting

confidence: 80%

The ozone hole measurements at the Indian station Maitri in Antarctica

et al. 2021

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“…4d) exhibits a pattern typical for Antarctic environment, i.e. depletion in austral spring, explained for example in Karhu et al (2003) or Koo et al (2018). In September, the median TOC value drops below the 220 DU level, while the absolute minimum, 113.7 DU, was recorded on 3 November 2015.…”

Section: Solar Uv Spectra Climatology and Changesmentioning

confidence: 89%

Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula

Čížková

Láska²,

Metelka³

et al. 2022

Preprint

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Abstract. This study aims to assess response of spectral UV radiation to different atmospheric and terrestrial factors, including solar zenith angle, ozone, cloud cover and albedo, in southern polar environment. For this purpose, 23260 individual spectra (300–363 nm), obtained by the B199 Mk-III Brewer spectrophotometer at Marambio Base, Antarctic Peninsula Region, over the period 2010–2020, were studied. A neural network model was developed to investigate the effects of the explanatory variables at individual wavelengths. SZA proved to be the most important parameter, followed by cloud cover, TOC, and surface albedo. The relative SZA effect is greatest at the shortest wavelengths, where a 1° decline in SZA results in a 6–18 % increase in UV irradiance (305 nm). Also TOC affects particularly the short wavelengths, while at 305 nm, a 10 DU decrease in TOC causes a 7–13 % increase in UV irradiance. In some seasons (e.g., 2011–2012, 2014–2015, 2018–2019), the large-scale ozone holes caused the UV irradiance at very short wavelengths peak in spring, whereas in other seasons (e.g., 2010–2011, 2012–2013), the maxima at all wavelengths were recorded in summer. The effect of cloud cover was strongest near the fully cloudy sky, and in summer months. Albedo affected the UV irradiance only weakly, its effect was strongest in early spring and late fall.

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