NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login

Press Enter or click the Search button to begin your search.

Back to Results
The Hale solar sector boundaryA Hale solar sector boundary is defined as the half (Northern Hemisphere or Southern Hemisphere) of a sector boundary in which the change of sector magnetic field polarity is the same as the change of polarity from a preceding spot to a following spot. Above a Hale sector boundary the green corona has maximum brightness, while above a non-Hale boundary the green corona has a minimum brightness. The Hale portion of a photospheric sector boundary tends to have maximum magnetic field strength, while the non-Hale portion has minimum field strength.
Document ID
19770005012
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Svalgaard, L. (Stanford Univ. CA, United States)
Wilcox, J. M. (Stanford Univ. CA, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1976
Subject Category
Solar Physics
Report/Patent Number
SU-IPR-661
NASA-CR-149173
AD-A024605
Report Number: SU-IPR-661
Report Number: NASA-CR-149173
Report Number: AD-A024605
Accession Number
77N11955
Funding Number(s)
CONTRACT_GRANT: NSF DES-75-15664
CONTRACT_GRANT: N00014-76-C-0207
CONTRACT_GRANT: NGR-05-020-559
CONTRACT_GRANT: NSF ATM-74-19007
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available