气候多层次的趋势预报
CLIMATIC TREND PREDICTION AT MULTIPLE HIERARCHY
-
摘要: 论述了子波气候诊断中的边界效应和非周期性对趋势预报的影响,在消除子波变换边界效应基础上,将气候层次理论和子波诊断技术相结合,提出了气候多层次趋势预报法则和评判标准,最后利用若干气候资料进行了多层次趋势预报。试验表明,相似延伸法能有效地消除边界效应,提出的气候多层次趋势预报法是可行的。Abstract: The impact on climatic trend prediction from boundary effect and non-periodicity inwavelet climatic diagnosis is stated in this paper. After decreasing wavelet transformation's boundary effect,the prediction law and assessment standard are put up based on the theory of climatic hierarchy and wavelet analysis. The experiments show that analogue extension may well decrease boundary effect,and that the prediction law is useful.
-
Key words:
- climatic hierarchy /
- trend prediction /
- wavelet transformation
-
[1] 林振山.气候层次理论及其应用[J].北京大学学报,1990,26:355-360. [2] 林振山.气候建模、诊断和预测的研究[M].北京:气象出版社,1996.300. [3] 林振山,邓自旺.子波气候诊断技术的研究[M].北京:气象出版社,1999.174.
点击查看大图
计量
- 文章访问数: 830
- HTML全文浏览量: 0
- PDF下载量: 1302
- 被引次数: 0