Accession Number : AD0683789

Title :   INTERPLANETARY SECTOR STRUCTURE IN THE RISING PORTION OF THE SUNSPOT CYCLE,

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY SPACE SCIENCES LAB

Personal Author(s) : Wilcox,John M. ; Colburn,David S.

Report Date : 04 FEB 1969

Pagination or Media Count : 16

Abstract : The interplanetary sector structure during the rising portion of the sunspot cycle in 1966 and 1967 has been investigated. The sector pattern is often quasi-stationary for a few rotations, followed by an appreciable change in the next rotation. When a sector boundary passes the earth, geomagnetic activity tends to increase, an effect rather similar to that observed near sunspot minimum. The recurrence period of the interplanetary field during the interval investigated was 27.5 plus or minus 0.1 days. (Author)

Descriptors :   (*SPACE ENVIRONMENTS, MAGNETIC FIELDS), SUNSPOTS, SOLAR FLARES, SOLAR ATMOSPHERE, GEOMAGNETISM

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE