Wavelet Feature of Precipitation in Quzhou Jiuhua

Jun Ping Liu

doi:10.4028/www.scientific.net/AMM.438-439.1286

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Analysis on the Ecological Restoration Technology
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Effect of Confluence Ratio Change on Hydrodynamic Character in Reservoir Area
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 438-439Wavelet Feature of Precipitation in Quzhou Jiuhua

Wavelet Feature of Precipitation in Quzhou Jiuhua

Abstract:

Wavelet transform can carry on multi-scale and multi-resolution analysis of the signal through arithmetic function such as stretching and translation and so on .In this paper, applying Morlet complex wavelet performed wavelet transform of the month precipitation time sequence of Quzhou Jiuhua station, and analyzed period on different time scales. The future precipitation was analyzed based on main periods. The result showed that month precipitation has multi-scale characteristic and the main periods of month precipitation are 5-month, 11-month and 26-month. The periodic changes on large-scale nest the periodic changes on small-scale. The wavelet analysis can process signal in time frequency domain, which provide references for development and management of water resources.

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Periodical:

Applied Mechanics and Materials (Volumes 438-439)

Pages:

1286-1289

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.438-439.1286

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Online since:

October 2013

Authors:

Jun Ping Liu

Keywords:

Period, Precipitation, Wavelet Analysis

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