dc.contributor.author |
Murthy, B. S |
|
dc.date.accessioned |
2010-01-01T16:41:05Z |
|
dc.date.available |
2010-01-01T16:41:05Z |
|
dc.date.issued |
1959-04 |
|
dc.identifier.citation |
Indian Journal of Meteorology and Geophysics, Vol. 10, No. 2, pp. 209 - 212 |
en |
dc.identifier.issn |
0019-5383 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/4957 |
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dc.description |
Open Access |
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dc.description.abstract |
The diurnal variation in the frequencies of sudden commencements (SCs) and sudden impulses (SIs) at Kodaikanal (10.2°N, 77.5°E) is analysed from the data for the period 1949-1957. The hourly frequency curve of SCs and SIs (combined) has little resemblance to the curve obtained by Newton from his analysis of Green-wich-Abinger records. The results of harmonic analysis show a nearly semi-diurnal trend in the distribution of storm sudden commencements (SSCs); this, however, is small. The hourly frequencies of SIs show a significant diurnal variation with an afternoon maximum and a forenoon minimum and a secondary minimum around 18h local time and a secondary maximum around 08h. These results are also compared with those obtained by Ferraro Parkinson and Unthank. |
en |
dc.language.iso |
en |
en |
dc.publisher |
Manager of Publications Civil Lines Delhi |
en |
dc.subject |
Impulses in Kodaikanal Magnetograms |
en |
dc.subject |
Sudden Commencements (SCs) |
en |
dc.subject |
Sudden Impulses (SIs) |
en |
dc.subject |
Harmonic Analysis |
en |
dc.subject |
Storm Sudden Commencements (SSCs) |
en |
dc.title |
Sudden commencements and impulses in Kodaikanal magnetograms - their hourly frequency |
en |
dc.type |
Article |
en |