Abstract
The Madden–Julian Oscillation (MJO) is actually a very irregular oscillation. Its oscillation period can vary significantly and is often described by a wide range such as 30–60 days or even 20–100 days. In addition, its amplitude is also irregular: sometimes the MJO is present, sometimes it is weak, and sometimes it is completely absent. Such irregularities present formidable challenges for modeling and prediction (and for planning expensive and intricate field campaigns to obtain in situ observations of an oscillation that may be temporarily in hibernation!).
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Majda, A.J., Stechmann, S.N., Chen, S., Ogrosky, H.R., Thual, S. (2019). A Stochastic Skeleton Model for the MJO. In: Tropical Intraseasonal Variability and the Stochastic Skeleton Method. Mathematics of Planet Earth(). Springer, Cham. https://doi.org/10.1007/978-3-030-22247-5_3
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