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SPATIOTEMPORAL CHANGE OF ABSOLUTE MAXIMUM TEMPERATURE IN KARAKALPAKSTAN

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Ecological Herald of Uzbekistan

Ecological Herald of Uzbekistan

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Abstract. Climate change is a long-term problem that is likely to cause extreme temperatures, floods, droughts, intense tropical cyclones and rising sea levels. In order to determine the direction of the impact of climate change on ecosystems, it is necessary to determine the main long-term trends of the most important meteorological variables (e.g., air temperature, its average, maximum and minimum values) to ecosystems, as well as their combined effects. In this study, monthly absolute maximum temperature trends and abrupt change points of 10 meteorological stations in Karakalpakstan were identified by applyting Mann-Kendall trend test and Mann-Kendall point change methods, respectively. There is an abrupt change of annual absolute maximum temperature at 6 meteostations out of 10 during the second decade of XXI century. Significant increasing trend of annual absolute maximum temperature was observed at all meteostations except Muynak (Z=0.56) and Shakh-Senem (Z=-0.33) meteostations. According to Mann-Kendall abrupt point change test, average of spatially interpolated monthly absolute maximum air temperature of all meteostations showed a significant abrupt change in 2014. According to this result, when the study period is divided into two parts, the average of spatially interpolated monthly absolute maximum air temperature of all weather stations showed a significant growth trend during the second period (2014 - 2022) compared to the first period (1975 -

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# Keywords: Absolute maximum tempe# trend analyses# abrupt point change analyses# Mann-Kendall test.# Kalit so’zlar: Mutlaq maksimal h# tendensiya tahlillari# keskin o’zgarish nuqtasi tahlill# Mann-Kendall testi..# Ключевые слова: Aбсолютная макси# анализ тенденций# анализ резкого изменения точки# критерий Манна-Кендалла..

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Article Identifiers

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https://eroi.uz/11.0146/A0125-0008

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