摘要
选取和田地区7个气象站1971—2021年51年的历史气象资料最高气温≥35℃高温日数,35.0~36.9℃高温日数、≥37℃高温日数进行分析。结果表明:和田地区高温日数总计7 485 d,其分布地域性明显,主要由中部向东、西递增,极端最高气温出现在墨玉县,为42.7℃,出现在1973年7月16日。近51年来,和田地区≥35℃高温日数,35.0~36.9℃、≥37℃呈微弱的上升趋势1.068 d/10年(P<0.10),0.142 d/10年(P<0.10)、0.52 d/10年(P<0.10)。采用MannKendall突变检验高温日数进行突变分析,结果表明;最高气温≥35℃高温日数在2006年发生突变,35.0~36.9℃高温日数在1977和2006年发生突变、≥37℃高温日数在2006年发生突变。
The historical meteorological data of 7 meteorological stations in the Hetian region from 1971 to 2021,with a maximum temperature of ≥ 35 ℃ for high temperature days,35.0~36.9 ℃ for high temperature days,and ≥ 37 ℃ for high temperature days,were selected for analysis.The results showed that the total number of high temperature days in the Hetian region was 7 485 days.Its geographical distribution is obvious,mainly increasing from the middle to the east and west.The extreme highest temperature occurred in Moyu County,at 42.7 ℃,on July 16,1973.In the past 51 years,the number of days with high temperatures ≥ 35 ℃ in the Hetian area has shown a weak upward trend of 1.068 d/10 a(P<0.10),0.142 d/10 a(P<0.10),and 0.52 d/10 a(P<0.10) at 35.0~36.9 ℃and ≥ 37 ℃.The Mann Kendall mutation test was used for mutation analysis of high temperature days,and the results showed that;The number of high temperature days with a maximum temperature of ≥ 35 ℃experienced a sudden change in 2006,the number of high temperature days with a temperature of 35.0~36.9 ℃ experienced a sudden change in 1977 and 2006,and the number of high temperature days with a temperature of ≥ 37 ℃ experienced a sudden change in 2006.
出处
《农业灾害研究》
2023年第11期231-233,共3页
Journal of Agricultural Catastrophology
关键词
高温日数
气候变化
突变
和田地区
High temperature days
Climate change
Mutation
Hetian region
