Articles | Volume 15, issue 6
https://doi.org/10.5194/os-15-1593-2019
https://doi.org/10.5194/os-15-1593-2019
Research article
 | 
03 Dec 2019
Research article |  | 03 Dec 2019

Commonly used methods fail to detect known propagation speeds of simulated signals from time–longitude (Hovmöller) diagrams

Yair De-Leon and Nathan Paldor

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Trapped planetary (Rossby) waves observed in the Indian Ocean by satellite borne altimeters
Yair De-Leon and Nathan Paldor
Ocean Sci., 13, 483–494, https://doi.org/10.5194/os-13-483-2017,https://doi.org/10.5194/os-13-483-2017, 2017
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Cited articles

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Short summary
Using simulated signal of sea surface height anomalies (SSHA) where the phase speed of the dominant mode is known a priori, we demonstrate that four of the common methods employed in estimating the propagation speed of SSHA do not identify the correct input mode. This finding explains the lack of progress made in recent years in bridging the gap between the "too fast" Rossby wave phase speed observations by satellites and the phase speed in the highly accurate linear trapped wave theory.