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Journal Article

Principal oscillation patterns: a review


Von Storch,  Hans
MPI for Meteorology, Max Planck Society;

Schnur,  Reiner
MPI for Meteorology, Max Planck Society;

Von Storch,  Jin—Song
MPI for Meteorology, Max Planck Society;

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Von Storch, H., Bürger, G., Schnur, R., & Von Storch, J. (1995). Principal oscillation patterns: a review. Journal of Climate, 8, 377-400. doi:10.1175/1520-0442(1995)008<0377:POPAR>2.0.CO;2.

Cite as: https://hdl.handle.net/21.11116/0000-0001-89A7-8
The principal oscillation pattern (POP) analysis is a technique used to simultaneously infer the characteristic patterns and timescales of a vector time series. The POPs may be seen as the normal modes of a linearized system whose system matrix is estimated from data. The concept of POP analysis is reviewed. Examples are used to illustrate the potential of the POP technique. The best defined POPs of tropospheric day-to-day variability coincide with the most unstable modes derived from linearized theory. POPs can be derived even from a space-time subset of data. POPs are successful in identifying two independent modes with similar timescales in the same dataset. The POP method can also produce forecasts that may potentially be used as a reference for other forecast models. -Authors