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Position: Home > Articles > 1961-2016年陇东南夏季气温变化特征分析 Journal of Anhui Agricultural Sciences 2018 (19)

1961-2016年陇东南夏季气温变化特征分析

作  者：
吴丽;蒲金涌;谢蕊;邓卓雅;李娟
关键词：
夏季气温;变化特征;陇东南
摘  要：
利用天水市7个气象站1961-2016年夏季平均气温等资料,对近56年陇东南气温变化特征进行分析.结果表明,1961-2016年陇东南夏季平均气温呈上升趋势,夏季气温升高对年平均气温升高的贡献率为19.8%.夏季日最高气温≥30.0℃的日数基本上与夏季气温的变化趋势一致,呈逐年上升趋势.大部分年份,夏季6-8月气温变化依次为低-高-低的趋势,7月为夏季平均气温最高月的概率最高,其次为8月,6月为最小;夏末8月气温高于初夏6月气温的年份为46年,占82%.2016年从初夏到夏末平均气温持续高于平均值,8月份平均气温为历史最高值,属于小概率事件;2016年研究站点极端最高气温未突破历史极值,8月中旬为气温异常偏高时段.
作  者：
WU Li;PU Jin-yong;XIE Rui;Tianshui City Meteorological Bureau;
单  位：
WU Li%PU Jin-yong%XIE Rui%Tianshui City Meteorological Bureau
关键词：
Summer temperature;;Variation characteristic;;Southeast of Gansu
摘  要：
Using the data such as the average summer temperature in seven weather stations in Tianshui City from 1961 to 2016,the temperature changes in southeast of Fujian in the past 56 years were analyzed. The results showed that the summer average temperature in southeast of Fujian showed an upward trend from 1961 to 2016,and the contribution rate of the increase in summer temperature to the annual average increase was 19. 8%. The number of days in which the maximum daily temperature in summer ≥30. 0 ℃ was basically the same as the change trend of the summer temperature,showing an upward trend year by year. In most years,the seasonal changes in temperature from June to August in summer were low-high-low trends. July had the highest probability of the highest mean temperature in the summer months,followed by August,June was the smallest. The temperature in late summer August was higher than the temperature in early summer June,which was 46 years,accounting for 82%. From the early summer to the late summer of 2016,the average temperature continued to be higher than the average,and the average temperature in August was the highest in history,which was a low probability event. In 2016,the extreme maximum temperature of the research site did not break the historical extreme,and in mid-August,it was an abnormally high temperature period.

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