Winter microseisms
作者:
Leonard M. Murphy,
期刊:
Eos, Transactions American Geophysical Union
(WILEY Available online 1946)
卷期:
Volume 27,
issue 1
页码: 19-26
ISSN:0002-8606
年代: 1946
DOI:10.1029/TR027i001p00019
数据来源: WILEY
摘要:
Barometric lows over large bodies of water produce the maximum microseisms which decrease with increase in distance from the storm area. Tropical hurricanes, as well as winter storms, may be roughly traced by changes in amplitudes as the storms approach the stations in their paths. Geological units seem to have considerable influence on microseismic amplitudes. Local barometric pressure changes have no influence on the microseisms of nearby stations. Storms over land which seldom have deep lows do not produce appreciable microseisms on ordinary teleseismic records. Although such records yield valuable information on microseisms, they are not adequate for a complete study of these phenomena.
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