[1]HAN Zhiming,JIA Keli,YANG Fang,et al.Analysis on Multi Time Scale Yearly Precipitation of Hulun Lake Watershed Based on Wavelet Morlet Analysis[J].Research of Soil and Water Conservation,2018,25(01):160-166.
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Analysis on Multi Time Scale Yearly Precipitation of Hulun Lake Watershed Based on Wavelet Morlet Analysis
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 01
Page number:
160-166
Column:
Public date:
2018-02-28
- Title:
- Analysis on Multi Time Scale Yearly Precipitation of Hulun Lake Watershed Based on Wavelet Morlet Analysis
- Keywords:
- Morlet wavelet theory; Kerulen River; Wuerxun River; precipitation
- CLC:
- P467;TV125
- DOI:
- -
- Abstract:
- The Morlet wavelet method is used to analyze the precipitation data series from 1961 to 2014 at Hailaer, Manzhouli, Kelulun river gauge stations and Wuerxun River gauge station of Hulun Lake watershed. The characteristics of the annual precipitation variation of Hulun Lake watershed are determined by the multiple time scale analysis of the precipitation time series. (1) The main periodic variations of the annual precipitation of the research basin are as follows. There are 6-year, 11-year and 27-year main variation periods of average annual precipitation in Hailaer city; there are 7-year, 13-year and 28-year main variation periods of average annual precipitation at Kelulun river gauge station, and there are 5-year, 13-year and 29-year main variation periods of average annual precipitation at Wuerxun river gauge station. (2) Based on estimation of the dry periods of each station, it is predicted that Hailaer and Manzhouli will be in the dry periods since 2017, and Kelulun river and Wuerxun river will be in the dry periods since 2019. (3) It is predicted that Hulun Lake will be in the dry period in 2018—2026, and it will be in the wet season in the period from 2027 to 2035.
- References:
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