GEOMAGNETIC SECULAR ACCELERATION

被引：17

作者：

BARRACLOUGH, DR

MALIN, SRC

机构：

[1] Institute of Geological Sciences, Edinburgh, EH9 3LA, Murchison House, West Mains Road

来源：

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY | 1979年 / 58卷 / 03期

关键词：

D O I：

10.1111/j.1365-246X.1979.tb04807.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Summary. A spherical harmonic model of the second time‐derivative of the geomagnetic field is determined, for the first time, directly from measures of the secular acceleration based on observatory annual mean data. The data span the interval 1964.5–1975.5, and 165 observatories are included. The model comprises the 32 coefficients of degree and order up to 6 that are significant at the 5 per cent level. Its primary purpose is to aid in the reduction of data to epoch for the 1980 series of navigational charts. The model is compared with earlier estimates of secular acceleration, derived by less direct methods. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：785 / 793

页数：9

共 11 条

[1] ON SOLUTION OF CERTAIN OVERDETERMINED SYSTEMS OF LINEAR EQUATIONS THAT ARISE IN GEOPHYSICS [J].

ANDERSSEN, RS .

JOURNAL OF GEOPHYSICAL RESEARCH, 1969, 74 (04) :1045-+

[2] DEFINITIVE MODEL OF GEOMAGNETIC-FIELD AND ITS SECULAR VARIATION FOR 1965 .1. DERIVATION OF MODEL AND COMPARISON WITH IGRF [J].

BARRACLOUGH, DR ;

HARWOOD, JM ;

LEATON, BR ;

MALIN, SRC .

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1978, 55 (01) :111-121

[3] MODEL OF GEOMAGNETIC-FIELD AT EPOCH 1975 [J].

BARRACLOUGH, DR ;

HARWOOD, JM ;

LEATON, BR ;

MALIN, SRC .

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1975, 43 (03) :645-659

[4] SPHERICAL HARMONIC-ANALYSIS OF GEOMAGNETIC SECULAR VARIATION - REVIEW OF METHODS [J].

BARRACLOUGH, DR .

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1976, 12 (04) :365-382

[5] A PROPOSED MODEL FOR INTERNATIONAL GEOMAGNETIC REFERENCE FIELD-1965 [J].

CAIN, JC ;

HENDRICKS, SJ ;

LANGEL, RA ;

HUDSON, WV .

JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, 1967, 19 (04) :335-+

[6]

FISHER MP, 1976, GEOMAGN B I GEOL SCI

[7] SPERICAL HARMONIC ANALYSIS .3. EARTHS MAGNETIC FIELD, 1900-1965 [J].

FOUGERE, PF .

JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, 1969, 21 (03) :685-&

[8] MEAN-SQUARE VALUES ON SPHERE OF SPHERICAL HARMONIC VECTOR FIELDS [J].

LOWES, FJ .

JOURNAL OF GEOPHYSICAL RESEARCH, 1966, 71 (08) :2179-+

[9] GEOMAGNETIC SECULAR VARIATION, 1962.5 TO 1967.5 [J].

MALIN, SRC ;

CLARK, AD .

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1974, 36 (01) :11-20

[10] GEOMAGNETIC SECULAR VARIATION AND ITS CHANGES 1942.5 TO 1962.5 [J].

MALIN, SRC .

GEOPHYSICAL JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY, 1969, 17 (04) :415-&

← 1 2 →