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http://nopr.niscpr.res.in/handle/123456789/25735| Title: | Magnetic disturbance effect on geomagnetic field at low latitudes |
| Authors: | James, M E Rastogi, R G Winch, D E |
| Keywords: | Geomagnetic storms;Dst index;Dipole and dip declination |
| Issue Date: | Apr-2004 |
| Publisher: | NISCAIR-CSIR, India |
| PACS No.: | 91.25-r; 94.30.Lr |
| Abstract: | Relationship between daily means of H and Y fields with Dst index for stations with in a low latitude belt around the world has been investigated. The H field decreases linearly with decreasing Dst, the slope being less than unity at all stations. But Y field variation with Dst exhibited a longitudinal dependence. The ring current follows the dipole coordinates and not the dip coordinates and hence changes in Y field are related to both dipole declination (ѱ) and dip declination (D) such that ΔY/ΔH = sin(ѱ-D), both in sign and magnitude. Good correspondence is seen between ΔY/ΔH and sin(ѱ-D) for all stations in the equatorial belt. |
| Page(s): | 88-94 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.33(2) [April 2004] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 33(2) 88-94.pdf | 1.45 MB | Adobe PDF | View/Open |
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