IZMIRAN CANDIDATE MODELS FOR DGRF 1985, IGRF 1990 AND A SECULAR VARIATION FORECAST MODEL FOR THE 1990-1995 PERIOD

被引:3
|
作者
BONDAR, TN
GOLOVKOV, VP
机构
[1] IZMIRAN, Moscow Region, 14 2092, Troitsk
来源
关键词
D O I
10.5636/jgg.44.709
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Two candidate main field models for 1985 and 1990 as well as a forecast for the secular variation are represented as a series of spherical harmonic coefficients up to n = m = 10 and n = m = 8, respectively. IZMSV, US/UK, USGS forecasting models are compared with extrapolated secular variation observations and with one another. The IZMSV and the USGS are shown to agree best.
引用
收藏
页码:709 / 717
页数:9
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