摘要
针对湖南省自然灾害经济损失发生的现状,结合傅里叶级数的相位特征,利用傅里叶级数时间序列模型给出自然灾害损失的变化趋势。根据1986—2007年湖南省自然灾害所造成的直接经济损失数据,在SPSS环境下进行拟合,并对未来5年湖南省的自然灾害所造成的直接经济损失进行预测。结果表明:傅里叶级数时间序列模型符合自然灾害损失发生的特点,有效地解决了传统损失预测模型在灾害经济损预测中误差大、稳定性差的缺陷,提高了预测精度;且得出未来5年湖南灾害灾情仍然具有递增的趋势的结论。采用该模型对自然灾害损失进行预测,其结果比较可靠,可供减灾决策部门参考。
With the situation of natural disaster economic loss in Hunan province as an example, and combining the phase characteristics of Fourier Series, the changing tendency of natural disaster loss was given by using Fourier series time series model. According to the data of direct economic loss from 1986 to 2007 in Hunan province caused by natural disasters, a fitting was carried out under the SPSS environment, and the direct economic loss of Hunan province caused by natural disasters in future 5 years was predicted. The results show that the Fourier series time series model is highly in accord with the occurring features of natural disasters, effectively solves the shortcomings of traditional loss prediction model such as big errors and bad stability, and improves the accuracy of prediction. In addition, it also shows that the disaster situation in Hunan province in future 5 years still has a tendency to increase. This study can provide reference for natural disaster reduction departments.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2009年第8期5-9,共5页
China Safety Science Journal
基金
国家社会科学基金资助(09BTJ012)
湖南省社会科学基金资助(08YBB278)
教育部人文社科规划基金资助(07JA790084)
湖南科技计划软科学重点项目(2008ZK2002)
湖南科技大学研究生创新基金资助(SB080131)
湖南省高校科技创新团队支持计划
关键词
傅里叶级数
预测模型
湖南
自然灾害
直接经济损失
Fourier series
predicting model
Hunan
natural disaster
direct economic loss
