| 长江流域近40年平均地温时空变化分析 |
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| 引用本文： | 陈吉琴,宋萌勃,吴士夫,张晓健.长江流域近40年平均地温时空变化分析[J].长江工程职业技术学院学报,2009,26(2):34-36. |
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| 作者姓名： | 陈吉琴 宋萌勃 吴士夫 张晓健 |
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| 作者单位： | 1. 长江工程职业技术学院,武汉,430212
2. 中南电力设计院岩土工程室,武汉,430071 |
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| 摘 要： | 选取长江流域107个测站1961～2000年逐日平均地温资料（0㎝）,利用最小二乘法通过计算气候倾向率和年代际变化的方法,对长江流域年、季平均地温的时空分布和变化特征进行了研究。认为：（1）从年均地温来看,上、下游的地温升高,下游升幅大于上游,中游基本无变化。（2）从季节来看,春季上游地温降低,中、下游地温升高,下游升幅大于中游 夏季整个长江流域地温都降低,其中下游降幅最大,为-0.427℃/10a 而与夏季相反,冬秋两季,长江流域地温升高。
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| 关 键 词： | 长江流域 平均地温 时空变化 气候倾向率 |
Characteristics of Spatial-Temporal Variability of Mean Ground Temperature in Yangtze River Basin in 40 Years |
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| CHEN Ji-qin,SONG Meng-bo,WU Shi-fu,ZHANG Xiao-jian.Characteristics of Spatial-Temporal Variability of Mean Ground Temperature in Yangtze River Basin in 40 Years[J].Journal of Changjiang Engineering Vocational College,2009,26(2):34-36. |
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| Authors: | CHEN Ji-qin SONG Meng-bo WU Shi-fu ZHANG Xiao-jian |
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| Institution: | CHEN Ji-qin1,SONG Meng-bo1,WU Shi-fu1,ZHANG Xiao-jian2(1,Changjiang Engineering Vocational College,Wuhan 430212,China,2,Central Southern China Electric Power Design Institute,Wuhan 430071,China) |
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| Abstract: | Based on the daily ground temperature data from 107 stations in the Yangtze River Basin from 1961 to 2000,characteristics of spatial-temporal variability of mean ground temperature in the Yangtze River Basin were investigated with the methods of calculating climate tendency rate and temperature changes per decade of mean ground temperature in Yangtze Basin.These results show that:(1)The mean yearly ground temperature increased in the upriver and downriver area but almost not changed in the mid-river area in... |
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| Keywords: | Yangtze River Basin mean ground temperature spatial-temporal variability climate tendency rate |
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