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Geomagnetic local and regional harmonic analyses.

Journal of Geophysical Research

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Abstract

Procedures are developed for using rectangular and cylindrical harmonic analyses in local and regional areas. Both the linear least squares analysis, applicable when component data are available, and the nonlinear least squares analysis, applicable when only total field data are available, are treated. When component data are available, it is advantageous to work with residual fields obtained by subtracting components derived from a harmonic potential from the observed components. When only total field intensity data are available, they must be used directly. Residual values cannot be used. Cylindrical harmonic analyses are indicated when fields tend toward cylindrical symmetry; otherwise, rectangular harmonic analyses will be more advantageous. Examples illustrating each type of analysis are given.-Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Geomagnetic local and regional harmonic analyses.
Series title:
Journal of Geophysical Research
Volume
87
Issue:
B3
Year Published:
1982
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Geophysical Research
First page:
1921
Last page:
1926
Number of Pages:
6