Temporal-spatial analyses of the geomagnetic field in China based on IGRF12
Temporal-spatial analyses of the geomagnetic field in China based on IGRF12
复制标题
基于IGRF12的中国地磁场时空分析
DOI:
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复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Hanyu Chen
中科院分区:
文献类型:
--
作者:
Yi Jiang;Yong Jiang;Yan Feng;Baojia Liu;Kai Zhao;Shuai Fu;Hanyu Chen
Based on the newest 12th International Geomagnetic Reference Field (IGRF12) model, we have.analyzed the temporal-spatial changes of geomagnetic field over China and its adjacent regions, the differences.between IGRF12 and IGRF11 in 2010.0, The differences of geomagnetic secular variation between two.models during 2010–2015, in addition the errors of secular variation between IGRF12 and the INTERMAGNET.measuring data in Beijing and Lanzhou stations were also researched. Finally, the geomagnetic secular.variation were calculated and compared by IGRF12 between 2010–2015 and 2015–2020. Results show that.geomagnetic secular variation in China by IGRF12 presents linear variation during 2010–2020. Due to the.same modeling principle, so that the difference between two models is slight, the absolute difference values.of elements X, Y , Z, F, H are less than 7nT and that of D, I are less than 0.009º. The distribution of.annual change rate of two models is similar. However, because of the measuring data that to create models.are different, two models partially differ in local areas, such as the middle and eastern areas of Y and D,.the southwestern areas of Z and F. There are obvious differences between measuring data and IGRF12, the.reasons include the regional magnetic anomalies, not take into account the external field, the truncation order.of IGRF and the measuring errors at geomagnetic stations.
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DOI:
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发表时间:
2003
期刊:
Chinese Journal of Geophysics
影响因子:
--
作者:
D. Wang
通讯作者:
D. Wang
DOI:
10.1007/978-3-540-38366-6_32
发表时间:
2003
期刊:
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影响因子:
--
作者:
R. Holme;N. Olsen;M. Rother;H. Lühr
通讯作者:
R. Holme;N. Olsen;M. Rother;H. Lühr
影响因子:
2
作者:
E. Thebault;Cc Finlay;H. Toh
通讯作者:
E. Thebault;Cc Finlay;H. Toh
影响因子:
2.8
作者:
Finlay, C. C.;Maus, S.;Zvereva, T. I.
通讯作者:
Zvereva, T. I.
DOI:
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发表时间:
2012
期刊:
--
影响因子:
--
作者:
DI Chuan-zhi
通讯作者:
DI Chuan-zhi