Anomalous Deposition and self-organizing patterns (Kohonen Networks) are two important methods for analysing the variability and growth of rainfall over the wet season. The coordinates (latitude/longitude) 13°-17° S / 44°-56° E define the area we study. Regionalization using Kohonen networks identified 20 distinct zones based on the average annual precipitation in our study region between 1980 and 2020. Anomaly accumulation tells us that the northern Madagascar monsoon season normally begins in early December and ends in early April. An average of 125 days, or about 34 months, is how long it lasts. The duration of the wet seasons has been trending downwards. However, with the exception of the eastern maritime areas of our study region, precipitation amounts have increased.
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All authors declare that they have no conflicts of interest.
The author confirms sole responsibility for the following: study conception and design, data collection, analysis and interpretation of results, and manuscript preparation.
The authors did not receive any specific grants from funding agencies in the public, commercial, or non-profit sectors for the research, authorship, and/or publication of this article.
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I thank the following individuals for their expertise and assistance in all aspects of our study and for their help in writing the manuscript. I am also grateful for the insightful comments given by anonymous peer reviewers. Everyone's generosity and expertise have improved this study in myriad ways and saved me from many errors.
Pölzlbauer, G. (2004). Application of self-organizing maps to a political dataset. Master Thesis, Vienna University of Technology.