| 鄂尔多斯高原近48a降水及蒸发特征分析 |
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| 引用本文： | 黄金廷,王文科,侯光才,尹立河.鄂尔多斯高原近48a降水及蒸发特征分析[J].干旱区资源与环境,2011(9):145-148. |
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| 作者姓名： | 黄金廷 王文科 侯光才 尹立河 |
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| 作者单位： | 长安大学环境科学与工程学院;西安地质调查中心; |
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| 基金项目： | 国土资源部公益性基金项目(编号:20091104); 亚洲基金中荷合作项目(编号:10025990); 教育部科学技术研究重大项目(308021); 国土资源调查项目(项目编号:1212010634204)资助 |
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| 摘 要： | 利用鄂尔多斯高原1961-2008年降水和蒸发时间序列分析表明,研究区降水量和蒸发量总体特征是皆向减少趋势发展,但降水在各年代都呈下降趋势,而蒸发在波动中向减少趋势发展。以Morlet小波函数为工具,分析得出研究区内降水和蒸发都存在多时间尺度特征,其中降水在8-9年和14-16年的时间尺度下正负交替震荡特征最明显,而蒸...
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| 关 键 词： | 降水 蒸发 Morlet小波 鄂尔多斯高原 |
Characteristics of precipitation and evaporation in the Ordos Plateau in recent 48 years |
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| HUANG Jinting,WANG Wenke,HOU Guangcai,Yin Lihe.Characteristics of precipitation and evaporation in the Ordos Plateau in recent 48 years[J].Journal of Arid Land Resources and Environment,2011(9):145-148. |
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| Authors: | HUANG Jinting WANG Wenke HOU Guangcai Yin Lihe |
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| Institution: | HUANG Jinting1,2,WANG Wenke1,HOU Guangcai2,Yin Lihe2(1.Environment and Engineering Institute,Chang'an university,Xi'an 710054,P.R.China,2.Xi'an Center of Geological Survey,P.R.China) |
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| Abstract: | Based on the time series of the precipitation and evaporation from 1961 to 2008,the characteristics of climate change in Ordos Plateau were analyzed.The results showed that both of precipitation and evaporation were decreased during recent 48 years.It is interesting that the precipitation was always decreased but the evaporation decreased with fluctuation on per decade time-step.Furthermore,by using the Morlet wavelet function,we found that multi-time sale existed.The signal of precipitation under two time ... |
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| Keywords: | precipitation evaporation Morlet wavelet Ordos Plateau |
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