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| 1965～2009年濮阳市蒸发量变化特征和突变分析 | |
| 引用本文： | 张明捷,冯杉,陈罗成. 1965～2009年濮阳市蒸发量变化特征和突变分析[J]. 江西农业学报, 2011, 23(7): 171-173,177 |
| 作者姓名： | 张明捷 冯杉 陈罗成 |
| 作者单位： | 1. 河南省濮阳市气象局,河南濮阳457000;中国气象局·河南省农业气象保障与应用技术重点实验室,河南濮阳457000 2. 河南省濮阳市气象局,河南濮阳,457000 3. 中国气象局·河南省农业气象保障与应用技术重点实验室,河南濮阳457000 |
| 摘 要： | 采用线性趋势分析和信噪比等方法对1965~2009年濮阳市不同时间尺度的蒸发量变化趋势和突变点进行了分析。结果表明:年蒸发量以-13.89 mm/a的倾向率减少。春季、夏季、秋季和冬季蒸发量的倾向率分别是-4.039、-6.378、-2.355和-1.283 mm/a,以夏季蒸发量的减少趋势最明显。在12个月中,以6月份蒸发量的减少最快,以2月份减少最慢。年蒸发量在1983年发生了一次突变。 |
| 关 键 词： | 濮阳 蒸发量 变化特征 突变分析 |
Analysis of Change and Mutation of Evaporation Capacity in Puyang City from 1965 to 2009 |
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| ZHANG Ming-jie,FENG Shan,CHEN Luo-cheng. Analysis of Change and Mutation of Evaporation Capacity in Puyang City from 1965 to 2009[J]. Acta Agriculturae Jiangxi, 2011, 23(7): 171-173,177 | |
| Authors: | ZHANG Ming-jie FENG Shan CHEN Luo-cheng |
| Affiliation: | 1.Puyang Meteorological Bureau of Henan Province,Puyang 457000,China;2.Henan Key Laboratory of Agrometeorological Ensuring and Applied Technique,CMA,Zhengzhou 457000,China) |
| Abstract: | The methods of linear trend analysis and signal-noise ratio were used to analyze the change and mutation of evaporation capacity in different time scales of Puyang city from 1965 to 2009.The results showed that the annual evaporation capacity decreased at the tendency rate of-13.89 mm/a.The tendency rates of evaporation capacity in spring,summer,autumn and winter were-4.039,-6.378,-2.355 and-1.283 mm/a respectively,and summer had the most obvious decreasing trend in evaporation capacity.The evaporation capacity decreased fastest in June,and slowest in February among the 12 months of a year.There was a mutation of evaporation capacity in 1983. |
| Keywords: | Puyang Evaporation capacity Change characteristic Mutation analysis |
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