| 黄河上游尖扎地区最高·最低气温及日较差变化 |
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| 引用本文： | 郑志红,王振宇.黄河上游尖扎地区最高·最低气温及日较差变化[J].安徽农业科学,2014(3):867-869,928. |
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| 作者姓名： | 郑志红 王振宇 |
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| 作者单位： | [1]青海省防灾减灾重点实验室,青海西宁811000 [2]青海省黄南州气象台,青海黄南811300 [3]青海省气候中心,青海西宁811000 |
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| 摘 要： | 利用1960~2007年尖扎气温资料,对尖扎年、季平均气温、平均最高、最低气温及日较差变化趋势进行了分析。结果表明,近48年尖扎年平均气温与全省基本一致,呈现出显著的上升趋势,气候倾向率为0.24℃/10a,其中冬季气温变暖最明显,秋季次之;平均最高气温较最低气温升幅大,这种特点在秋季和夏季最为明显;日较差也呈上升趋势,尤其是秋季最为显著。最高气温的升高是年平均日较差变化呈增加趋势最主要的原因,即年平均日较差变大是以最高温度增加幅度大于最低温度变暖为特征。
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| 关 键 词： | 最高气温 最低气温 气温变化 日较差 尖扎地区 |
On Change in Mean Maximum Temperature,Minimum Temperature and Diurnal Range in Jianzha in the Upper Reach of Yellow River |
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| Institution: | ZHENG Zhi-hong et al (Qinghai Key Laboratory of Meteorological Disaster Preventing and Reducing, Xining, Qinghai 811000) . |
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| Abstract: | Based on the temperature data in Jianzha during 1961 - 2007, the trends of annual mean air temperature, annual mean maximum and minimum temperature and diurnal temperature were analyzed. The results showed that annual mean temperature increased obviously for Jianzha in the last 48 years, especially in winter, it kept space with Qinghai Province. The climatological warming trend was 0.24 ~C/10a, the autumn take second place. The increasing range of mean maximum temperatures is more dominant than that of mean minimum temperatures, this feature was much more distinct in autumn and summer. Annual mean diurnal temperature has increased, especially in autumn. The in- creasing trend is the main reason which causes the increasing of maximum temperature, a typical feature of the increasing trend of annual mean diurnal temperature is that the increasing range of mean maximum temperature is above the minimum temperature. |
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| Keywords: | Maximum temperature Minimum temperature Temperature change Daily range Jianzha Region |
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