Mathematics – Logic
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....3477h&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #3477
Mathematics
Logic
Scientific paper
In the course of history of human civilization the observers of nature believed in lunar influence on weather. This plain belief changed into scientific knowledge after reasonable amount of reliable weather records had been collected and examined by statistical methods. In the 19th and 20th Centuries meteorologists tried to detect lunar component in weather data, often with varying success. In the early 1960s of the last century scientists in the USA and Australia almost simultaneously published papers demonstrating the existence of an significant and persistent synodical variation of heavy rainfall in two extensive datasets from distant parts of the world. In fact a pair of authors from Sydney, E. E. Adderley and E. G. Bowen postponed the publication of their results in fear they would not have met the right response in meteorological circles. During the next decade, however, the observed phenomenon of excessive precipitation recorded near the middle of the first and third weeks of the synodical month had been widely accepted and the proposed explanation related to meteoritic dust had even been referred to as the "Bowen hypothesis". The following years saw decline in the interest of the geophysical community in this matter. The reason might be that the effect was not observed in current precipitation series. An analysis of the daily rainfall at Prague-Clementinum in the years 1901-2002 was carried out by method similar to Bowen's. The method of superposition of epochs was applied on ever synodical sub-series during 78 sub-sequent 25-year periods. The resulting 3-dimensional picture indicates that the lunar signal, which resembled the original one until the 1930s changed significantly for the next 20 years. The important result of this analysis is that for 25-year periods which include the data since approx. 1970 is the effect even more pronounced and therefore more noticeable for people still denying its existence.
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