Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.wdcb.ru/stp/data/geomagni.ind/kp_ap/MonthApFormat.txt Дата изменения: Fri Jun 3 16:31:44 2011 Дата индексирования: Tue Oct 2 12:00:51 2012 Кодировка: Поисковые слова: annular solar eclipse

WORLDWIDE INDICES
The subscript "p" means planetary and designates a global magnetic activity in-
dex. The following 13 observatories, which lie between 46 and 63 degrees north
and south geomagnetic latitude, now contribute to the planetary indices: Ler-
wick (UK), Eskdalemuir (UK), Hartland (UK), Ottawa (Canada), Fredericksburg
(USA), Meannook (Canada), Sitka (USA), Eyrewell (New Zealand), Canberra (Aus-
tralia), Lovo (Sweden), Brorfelde (Denmark), Wingst (Germany), and Niemegk
(Germany).
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EQUIVALENT AMPLITUDE
The a-index ranges from 0 to 400 and represents a K-value converted to a linear
scale in gammas (nanoTeslas)--a scale that measures equivalent disturbance am-
plitude of a station at which K=9 has a lower limit of 400 gammas.

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FORMAT FOR MONTHLY MEANS OF SELECTED GEOMAGNETIC INDICES
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COLUMNS FMT DESCRIPTION
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1- 4 I4 YEAR
5- 6 I2 MONTH
7-10 I4 Monthly mean Ap PLANETARY EQUIVALENT DAILY AMPLITUDE
11-12 2X Blank
13-16 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 00-03 UT.
17-20 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 03-06 UT.
21-24 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 06-09 UT.
25-28 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 09-12 UT.
29-32 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 12-15 UT.
33-36 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 15-18 UT.
37-40 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 18-21 UT.
41-44 I4 Monthly mean ap or PLANETARY EQUIVALENT AMPLITUDE for 21-24 UT.
45-50 F6.2 Monthly mean Cp or PLANETARY DAILY CHARACTER FIGURE--a
qualitative estimate of overall level of magnetic activity for
the day determined from the sum of the eight ap amplitudes. Cp
ranges, in steps of one-tenth, from 0 (quiet) to 2.5
(highly disturbed).
51-53 I3 Monthly mean C9--a conversion of the 0-to-2.5 range of the Cp
index to one digit between 0 and 9.
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