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A preliminary investigation of long waves at Newlyn
Author(s) -
Darbyshire J.
Publication year - 1958
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708435909
Subject(s) - amplitude , period (music) , geology , oscillation (cell signaling) , bay , kondratiev wave , climatology , meteorology , physics , mechanics , optics , oceanography , acoustics , chemistry , biochemistry
Long waves of period greater than 1/2 min are recorded at Newlyn, Cornwall. There are two predominant types; one with a period of approximately 12 min and another with a period of 30 to 40 min. This investigation deals only with the longer‐period type and is concerned with the eight instances during the period Mar. 1956 to Mar. 1957 where these longer waves exceeded 7 in. in amplitude. The occurrence of these waves appears to be associated with the passage of meteorological fronts and a reasonable correlation is found between the amplitude and the northward component of the frontal velocity whilst the duration of the wave activity appears to decrease as the easterly component of the frontal velocity increases. Various suggestions regarding the nature of these waves are considered. The evidence that they are edge waves is not very convincing and the most likely explanation appears to be that the waves are due to the oscillation of Mounts Bay as a whole, or of the north‐western part of it.