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Changes in thermal indices on Herschel Island (Qikiqtaruk, Canada) between the periods 1899–1905 and 2008–2014

Jarzyna, Krzysztof

Polish polar research, 2023-01, Vol.44 (1), p.21-39 [Periódico revisado por pares]

Warsaw: Polish Academy of Sciences

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  • Título:
    Changes in thermal indices on Herschel Island (Qikiqtaruk, Canada) between the periods 1899–1905 and 2008–2014
  • Autor: Jarzyna, Krzysztof
  • Assuntos: 19th century ; 20th century ; 21st century ; Air temperature ; Coasts ; Cold days ; Daily temperatures ; Growing season ; Mounted police ; Sediments ; Statistical analysis ; Taiga & tundra ; Temperature index ; Temperature rise
  • É parte de: Polish polar research, 2023-01, Vol.44 (1), p.21-39
  • Descrição: The paper provides a comparison of minimum air temperature (TN), maximum air temperature (TX), mean air temperature (T mean) and a few derived temperature indices for Herschel Island (Qikiqtaruk) in the Yukon Territory, Canada for the periods 1899–1905 and 2008–2014. A significant increase in the TN was noted at +4.2°C, which was a larger increase than that for both T mean (+3.7°C) and TX (+3.5°C). Air temperature increased the most in October, November, and December. In addition, the length of the frost-free season increased by 26 days and the length of the growing season increased by 25 days from the early 20th century to the early 21st century. The increase in the TN also triggered a change in the plant hardiness zone where Herschel Island is located. However, the daily air temperature range declined over the course of the study period as well as the annual total of heating degree days and the number of exceptionally cold days. No statistically significant change in the number of freeze-thaw days was found for the studied periods.
  • Editor: Warsaw: Polish Academy of Sciences
  • Idioma: Polonês;Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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