In:
Terrestrial Magnetism and Atmospheric Electricity, American Geophysical Union (AGU), Vol. 45, No. 3 ( 1940-09), p. 309-337
Abstract:
The paper gives three‐hour‐range indices K for seven observatories for July 1, 1938, to December 31, 1939 (Table 1), world‐wide three‐hour‐range indices K w for 1938 and 1939 (Table 2, which will be used most often), and, based on K w , daily indices B (Table 3) and monthly frequencies and averages (Table 4). Section (1) contains all the information necessary for using these Tables in geophysical or ionospheric work. Sections (2) to (5) show how the indices K are standardized by means of keys for transforming K into reduced indices K r . The world‐wide K w is introduced as an average of the reduced indices K r , in which the K r from polar stations enter with higher weight than the K r from equatorial stations. K w is proposed as a measure of the intensity P of solar corpuscular radiation. Note —Throughout this paper, a superior cross (×) denotes a half unit, thus, 0 × =0.5, 1 × = 1.5, etc.
Type of Medium:
Online Resource
ISSN:
0096-8013
,
0096-8013
DOI:
10.1029/TE045i003p00309
Language:
English
Publisher:
American Geophysical Union (AGU)
Publication Date:
1940
detail.hit.zdb_id:
2403298-0
detail.hit.zdb_id:
241596-3
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