Assessment of spectral UV radiation at Marambio Base, Antarctic
Peninsula

J 2023

Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula

ČÍŽKOVÁ, Klára, Kamil LÁSKA, Ladislav METELKA and Martin STANĚK

Basic information

Original name

Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula

Authors

ČÍŽKOVÁ, Klára (203 Czech Republic, guarantor, belonging to the institution), Kamil LÁSKA (203 Czech Republic, belonging to the institution), Ladislav METELKA and Martin STANĚK

Edition

Atmospheric Chemistry and Physics, Copernicus Publications, 2023, 1680-7316

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10510 Climatic research

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 6.300 in 2022

RIV identification code

RIV/00216224:14310/23:00131666

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.5194/acp-23-4617-2023

UT WoS

000973756700001

Keywords in English

southern polar environment; Antarctic Peninsula; Marambio Base; UV radiation

Abstract

V originále

This study aims to assess the dependence of spectral UV radiation on different atmospheric and terrestrial factors, including solar zenith angle, ozone, and cloud cover, in the southern polar environment. For this purpose, 23 260 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 127 wavelengths in the interval 300-363 nm, with a 0.5 nm sampling interval. Solar zenith angle (SZA) proved to be the most important parameter, followed by cloud cover, total ozone column (TOC), and surface albedo. The relative SZA effect is greatest at the shortest wavelengths, where a 1ffi decrease in SZA results in a 6 %-18% increase in UV irradiance (305 nm). TOC particularly affects the short wavelengths below approximately 320-325 nm, when for example at 305 nm a 10DU decrease in TOC causes a 7 %-13% increase in UV irradiance. The large-scale ozone holes (e.g., in 20112012, 2014-2015, 2018-2019) caused the spectral UV irradiance at very short wavelengths to peak in spring, whereas in other seasons (e.g., 2010-2011, 2012-2013), the maxima at all wavelengths were recorded in summer (November to January). Absorption of UV radiance by the ozone also affected the temporal distribution of very high spectral UV irradiances (i.e., highest 10% of the distribution), when at 305 nm they were observed both in spring and summer months, and at 340 nm they occurred mostly in summer. The effect of cloud cover was strongest near the fully cloudy sky and in the summer months, when the Antarctic clouds tend to be thickest.

Links

MUNI/A/1323/2022, interní kód MU

Name: Environmentální a socioekonomické změny v geografickém výzkumu

Investor: Masaryk University, Environmental and socio-economic change in geographical research

VAN 2022, interní kód MU

Name: Český antarktický výzkumný program 2022 (Acronym: CARP 2022)

Investor: Ministry of Education, Youth and Sports of the CR, Czech Antarctic Research Programme 2022, Antarctic research

Citovat

ČÍŽKOVÁ, Klára, Kamil LÁSKA, Ladislav METELKA and Martin STANĚK. Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula. Atmospheric Chemistry and Physics. Copernicus Publications, 2023, vol. 23, No 8, p. 4617-4636. ISSN 1680-7316. Available from: https://dx.doi.org/10.5194/acp-23-4617-2023.

@article{2309998,
   author = {Čížková, Klára and Láska, Kamil and Metelka, Ladislav and Staněk, Martin},
   article_number = {8},
   doi = {http://dx.doi.org/10.5194/acp-23-4617-2023},
   keywords = {southern polar environment; Antarctic Peninsula; Marambio Base; UV radiation},
   language = {eng},
   issn = {1680-7316},
   journal = {Atmospheric Chemistry and Physics},
   title = {Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula},
   url = {https://doi.org/10.5194/acp-23-4617-2023},
   volume = {23},
   year = {2023}
}

TY  - JOUR
ID  - 2309998
AU  - Čížková, Klára - Láska, Kamil - Metelka, Ladislav - Staněk, Martin
PY  - 2023
TI  - Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula
JF  - Atmospheric Chemistry and Physics
VL  - 23
IS  - 8
SP  - 4617-4636
EP  - 4617-4636
PB  - Copernicus Publications
SN  - 16807316
KW  - southern polar environment
KW  - Antarctic Peninsula
KW  - Marambio Base
KW  - UV radiation
UR  - https://doi.org/10.5194/acp-23-4617-2023
N2  - This study aims to assess the dependence of spectral UV radiation on different atmospheric and terrestrial factors, including solar zenith angle, ozone, and cloud cover, in the southern polar environment. For this purpose, 23 260 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 127 wavelengths in the interval 300-363 nm, with a 0.5 nm sampling interval. Solar zenith angle (SZA) proved to be the most important parameter, followed by cloud cover, total ozone column (TOC), and surface albedo. The relative SZA effect is greatest at the shortest wavelengths, where a 1ffi decrease in SZA results in a 6 %-18% increase in UV irradiance (305 nm). TOC particularly affects the short wavelengths below approximately 320-325 nm, when for example at 305 nm a 10DU decrease in TOC causes a 7 %-13% increase in UV irradiance. The large-scale ozone holes (e.g., in 20112012, 2014-2015, 2018-2019) caused the spectral UV irradiance at very short wavelengths to peak in spring, whereas in other seasons (e.g., 2010-2011, 2012-2013), the maxima at all wavelengths were recorded in summer (November to January). Absorption of UV radiance by the ozone also affected the temporal distribution of very high spectral UV irradiances (i.e., highest 10% of the distribution), when at 305 nm they were observed both in spring and summer months, and at 340 nm they occurred mostly in summer. The effect of cloud cover was strongest near the fully cloudy sky and in the summer months, when the Antarctic clouds tend to be thickest.
ER  -

ČÍŽKOVÁ, Klára, Kamil LÁSKA, Ladislav METELKA and Martin STANĚK. Assessment of spectral UV radiation at Marambio Base, Antarctic Peninsula. \textit{Atmospheric Chemistry and Physics}. Copernicus Publications, 2023, vol.~23, No~8, p.~4617-4636. ISSN~1680-7316. Available from: https://dx.doi.org/10.5194/acp-23-4617-2023.

Detailed Information on Publication Record