Open AccessNOTE ON LARGE MICROSEISMS RECORDED AT ABERDEEN ON 1954 DECEMBER 9
Author(s) -
Geddes A. E. M.
Publication year - 1957
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1957.tb06690.x
Subject(s) - microseism , geology , seismology , firth , rayleigh wave , reflection (computer programming) , bay , oceanography , surface wave , telecommunications , engineering , computer science , programming language
Summary A deep depression moved rapidly NNE from the Welsh coast across northern England to the Firth of Forth on 1954 December 9. At the same time microseisms of very large amplitude were recorded at Aberdeen, the maximum effect occurring when the centre of low pressure was situated over land. If the disturbances were due to standing waves set up in the sea in accordance with the Longuet‐Higgins theory, these waves must have arisen behind the low centre by reflection from the coast. There was no other low centre in the neighbourhood likely to produce the effects. So far as the nature of the microseisms is concerned, the records support the idea that they consist of a mixture of Rayleigh waves and Love waves, and that in the present case they approached Aberdeen from a direction approximately SSW of the station.