Changes in extreme temperature indices at the Ukrainian Antarctic Akademik Vernadsky station, 1951-2020

• Autorzy: Khrystiuk Borys , Gorbachova Liudmyla , Shpyg Vitalii , Pishniak Denys

Identyfikatory

DOI

10.26491/mhwm/150883

• Języki publikacji: EN

Abstrakty

EN

In the late 20th century, warming on the Antarctic Peninsula was most pronounced compared to other parts of Antarctica. However, air temperature showed a significant variability, which has become especially evident in recent decades. Thus, the investigation of air temperature trends on the Antarctic Peninsula is important. This study examines the extreme air temperature at the Ukrainian Antarctic Akademik Vernadsky station, located on Galindez Island, Argentine Islands Archipelago, near the Antarctic Peninsula. For 1951 to 2020, based on the daily air temperature data, the temporal trends of extreme air temperature were analyzed, using 11 extreme temperature indices. Based on linear trend analysis and the Mann-Kendall trend test, the TXn, TNn, TN90p, and TN90p indices showed an upward trend, whereas theFD0, ID0, TN10p, TX10p, and DTR indices showed a downward trend. Among them, annually, FD0, ID0, and TN10p significantly decreased by –0.427 days, –0.452 days, and -0.465%, respectively, whereas TXn and TNn increased by 0.164℃ and 0.201℃, respectively. The indices TXx and TNn showed no statistically significant trends. The average annual difference between TX and TN (index DTR) showed a nonsignificant decreasing trend at –0.029℃ year-1 . Thus, for the period of 1951-2020, the Ukrainian Antarctic Akademik Vernadsky station was subjected to warming.

Słowa kluczowe

EN

Antarctica; trend; climate change; extreme air temperature; extreme indices; RStudio Software

• Wydawca: Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
• Czasopismo: Meteorology Hydrology and Water Management. Research and Operational Applications
• Rocznik: 2022
• Tom: Vol. 10, Iss. 1
• Strony: 95--106
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Khrystiuk Borys

• Ukrainian Hydrometeorological Institute

• https://orcid.org/0000-0003-4290-3745

autor

Gorbachova Liudmyla

• Ukrainian Hydrometeorological Institute

• https://orcid.org/0000-0003-1033-9385

autor

Shpyg Vitalii

• Ukrainian Hydrometeorological Institute

• https://orcid.org/0000-0003-1055-7120

autor

Pishniak Denys

• National Antarctic Scientific Center of Ukraine

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).