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Advances in Meteorology
Volume 2015, Article ID 858717, 12 pages
Research Article

Wavelet Filter Approach and - Relationship in Meteorological Forecasting

Faculty of Engineering, Mahasarakham University, Kantarawichai, Maha Sarakham 44150, Thailand

Received 14 June 2015; Accepted 10 August 2015

Academic Editor: Hiroyuki Hashiguchi

Copyright © 2015 Wallop Jiwlong and Anongrit Kangrang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The purpose of this study is to investigate the - relationship for computing rainfall using conventional and wavelet filters technique. Wavelet filter technique was applied to data filtration process. The proposed model was applied to determine the rainfall of five rain gauge meteorological stations in Thailand. The three-hourly rainfall and radar reflectivity data were used in this study. The results indicated that the accumulative rainfall of wavelet filters technique was close to the observed rainfall data more than the results of conventional practice for both calibration and validation processes. Consequently, we are confident that a wavelet filters technique is a useful tool for estimating the rainfall.