Periodic Change of River Runoff Based on EMD-MES

Abstract:

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This paper discusses stabilizing treatment of runoff time series by empirical mode decomposition (EMD), and periodic analysis of stabilized runoff time series by maximum entropy spectrum, and presents high-resolution character of maximum entropy spectrum and its application prospect in hydrology. It conducts the analysis and calculation in combination with a real example of annual runoff series at the Lanzhou station in the upper of Yellow River, and study proves that annual runoff has 11.1, 6.25 and 3.1 years significant periods at the Lanzhou station. The conclusion illustrates the feasibility of this method and provides scientific data for water resources planning and managing.

Info:

Periodical:

Advanced Materials Research (Volumes 250-253)

Edited by:

Guangfan Li, Yong Huang and Chaohe Chen

Pages:

2848-2851

DOI:

10.4028/www.scientific.net/AMR.250-253.2848

Citation:

X. H. Zhao and L. L. An, "Periodic Change of River Runoff Based on EMD-MES", Advanced Materials Research, Vols. 250-253, pp. 2848-2851, 2011

Online since:

May 2011

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Price:

$35.00

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