| 对中国北方沙尘天气和气候的功率谱比较 |
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| 引用本文： | 刘国梁,郝丽珍,张峰. 对中国北方沙尘天气和气候的功率谱比较[J]. 干旱区资源与环境, 2011, 0(12): 89-91 |
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| 作者姓名： | 刘国梁 郝丽珍 张峰 |
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| 作者单位： | 山西大学环境与资源学院;山西大学黄土高原研究所;太原大学计算机科学系; |
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| 摘 要： | 通过对中国北方103个站1961-2000年的每月沙尘天气日数、月平均风速、月降雨量和月平均蒸发量等气象资料的功率谱分析,发现沙尘天气和气候的功率谱在1年和0.5年上有2个峰值;沙尘天气和风速在低频部分（周期大于2年）的谱上有个高值区;降雨量和蒸发量在低频区均没有高值区;40年中国北方沙尘天气的整体下降趋势与风速减小是...
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| 关 键 词： | 沙尘天气 气候资料 功率谱 |
The comparison of the power spectral of the sand-dust weather and climate in Northern China |
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| LIU Guoliang,,HAO Lizhen,FENG Zhang. The comparison of the power spectral of the sand-dust weather and climate in Northern China[J]. Journal of Arid Land Resources and Environment, 2011, 0(12): 89-91 |
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| Authors: | LIU Guoliang HAO Lizhen FENG Zhang |
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| Affiliation: | LIU Guoliang1,2,HAO Lizhen3,FENG Zhang2 (1.School of Environmental Sciences and Resources,Shanxi University,Taiyuan 030006,P.R.China,2.Institute of Loess Plateau,3.Department of Computer Science,Taiyuan College,Taiyuan 030009,P.R.China) |
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| Abstract: | In this paper we analyzed the power spectral of sand-dust weather,wind speed,precipitation,evaporation of 103 stations in Northern China from 1961 to 2000.It was found that there exited two peaks of 1 year and 0.5 years,in the power spectral of Sand-Dust weather data and the climate data.A higher value region in the lower frequency(i.e.the period longer than 2 years) of the power spectral was found in the sand-dust weather and the wind speed but not the precipitation or evaporation.The decreasing trend of s... |
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| Keywords: | sand dust weather climate data power spectral |
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