The extreme high temperature anomaly(EHTA) events in a region are one of the most important
climatic parameters to make climate assessment of the trend of regional climate
change. The diagnosis and analysis of the EHTA event in Zhejiang Province in
East China in 2022 show that the event has set the rarest record in this region in the past 71 years from both time and
space perspectives. The results of Mann-Kendall trend analysis showed that the
mean annual high temperature days in Zhejiang Province had a sudden change. The
sudden change occurred around 2004, and the trend was rising after the sudden
change.
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