|
Twitter
|
Facebook
|
Google+
|
VKontakte
|
LinkedIn
|
 
 
International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Saturday 26 May 2018

About IJISR

News

Submission

Downloads

Archives

Custom Search

Contact

Connect with IJISR

  Call for Papers (May 2018)  
 
 
 

Continuous wavelet analysis of rainfall fluctuations at interannual and decennial scales on the south-eastern part in the Democratic Republic of the Congo between 1940 and 1997


Volume 27, Issue 2, November 2016, Pages 365–377

 Continuous wavelet analysis of rainfall fluctuations at interannual and decennial scales on the south-eastern part in the Democratic Republic of the Congo between 1940 and 1997

Albert Mbata Muliwavyo, Jean Marie Tshitenge Mbuebue, Edmond Phuku Phuati, Kyandoghere Kyamakya, François Tondozi Keto, Richard Bopili Mbotia, and Ndotoni Zana

Original language: English

Received 19 July 2016

Copyright © 2016 ISSR Journals. 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.

Abstract


Wavelet analysis was applied to the standardized rainfall time series in the south-eastern in the Democratic Republic of the Congo in order to determine periods of rainfall fluctuations in this region at interannual and decennial timescales and to assess the influence of regional or remote climate phenomena on the rainfall of that sector between 1940 and 1997. The local, the global and the scale-averaged wavelet power spectrum of the rainfall time series of that sector indicate an important fluctuation between practically 1960 and 1970. Wavelet coherence spectral analysis shows that the southern oscillation El Nino phenomenon, the Western Hemisphere Warm Pool, the Atlantic Ocean climate variability and the Indian Ocean dipole have a very weak influence on rainfall on this territory. Scale-averaged wavelet coherence in 2-16 years band is lower than 0.5 whatever the climate index considered. Other factors must also be considered in the study of rainfall variability in this study area.

Author Keywords: climate index, wavelet analysis, coherence.


How to Cite this Article


Albert Mbata Muliwavyo, Jean Marie Tshitenge Mbuebue, Edmond Phuku Phuati, Kyandoghere Kyamakya, François Tondozi Keto, Richard Bopili Mbotia, and Ndotoni Zana, “Continuous wavelet analysis of rainfall fluctuations at interannual and decennial scales on the south-eastern part in the Democratic Republic of the Congo between 1940 and 1997,” International Journal of Innovation and Scientific Research, vol. 27, no. 2, pp. 365–377, November 2016.