globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065501
论文题名:
Evidence for a new geomagnetic jerk in 2014
作者: Torta J.M.; Pavõn-Carrasco F.J.; Marsal S.; Finlay C.C.
刊名: Geophysical Research Letters
ISSN: 0094-8547
EISSN: 1944-8278
出版年: 2015
卷: 42, 期:19
起始页码: 7933
结束页码: 7940
语种: 英语
英文关键词: acceleration pulses ; core-mantle boundary ; geomagnetic jerk ; main field modeling ; quasi-definitive data
Scopus关键词: Observatories ; Acceleration pulse ; Core-mantle boundary ; Field model ; Geomagnetic jerks ; Quasi-definitive data ; Geomagnetism ; acceleration ; core-mantle boundary ; geomagnetic field ; global perspective ; observatory ; satellite data ; secular variation ; Africa ; Atlantic Ocean ; Australia ; Europe ; Pacific Ocean ; Pacific Ocean (West)
英文摘要: The production of quasi-definitive data at Ebre observatory has enabled us to detect a new geomagnetic jerk in early 2014. This has been confirmed by analyzing data at several observatories in the European-African and Western Pacific-Australian sectors in the classical fashion of looking for the characteristic V shape of the geomagnetic secular variation trend. A global model produced with the latest available satellite and observatory data supports these findings, giving a global perspective on both the jerk and a related secular acceleration pulse at the core-mantle boundary. We conclude that the jerk was most visible in the Atlantic and European sectors. Key Points Direct observations indicate a new geomagnetic jerk at 2014 A global perspective is given by a new model which confirms the jerk IGRF-12 secular variation predictions might be poorer than expected © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84947033802&doi=10.1002%2f2015GL065501&partnerID=40&md5=286993166d2069d9b38714820403c6de
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8163
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Observatori de l'Ebre, (OE), CSIC, Universitat Ramon Llull, Roquetes, Spain

Recommended Citation:
Torta J.M.,Pavõn-Carrasco F.J.,Marsal S.,et al. Evidence for a new geomagnetic jerk in 2014[J]. Geophysical Research Letters,2015-01-01,42(19).
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