globalchange  > 科学计划与规划
DOI: 10.1002/2014GL062659
论文题名:
The Swarm Initial Field Model for the 2014 geomagnetic field
作者: Olsen N.; Hulot G.; Lesur V.; Finlay C.C.; Beggan C.; Chulliat A.; Sabaka T.J.; Floberghagen R.; Friis-Christensen E.; Haagmans R.; Kotsiaros S.; Lühr H.; Tøffner-Clausen L.; Vigneron P.
刊名: Geophysical Research Letters
ISSN: 0094-8945
EISSN: 1944-8676
出版年: 2015
卷: 42, 期:4
起始页码: 1092
结束页码: 1098
语种: 英语
英文关键词: Earth's magnetic field ; geomagnetic model ; Swarm satellites
Scopus关键词: Geomagnetism ; Magnetic fields ; Satellites ; Constellation missions ; Earth's magnetic field ; Geomagnetic fields ; Geomagnetic model ; Information concerning ; Intensity difference ; Magnetic intensities ; Secular variation ; Magnetism ; CHAMP ; geomagnetic field ; information processing ; magnetic intensity ; measurement method ; satellite data
英文摘要: Data from the first year of ESA's Swarm constellation mission are used to derive the Swarm Initial Field Model (SIFM), a new model of the Earth's magnetic field and its time variation. In addition to the conventional magnetic field observations provided by each of the three Swarm satellites, explicit advantage is taken of the constellation aspect by including east-west magnetic intensity gradient information from the lower satellite pair. Along-track differences in magnetic intensity provide further information concerning the north-south gradient. The SIFM static field shows excellent agreement (up to at least degree 60) with recent field models derived from CHAMP data, providing an initial validation of the quality of the Swarm magnetic measurements. Use of gradient data improves the determination of both the static field and its secular variation, with the mean misfit for east-west intensity differences between the lower satellite pair being only 0.12nT. ©2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924856647&doi=10.1002%2f2014GL062659&partnerID=40&md5=da84b5091ff6d129b6e6c4644767f801
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8561
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: DTU Space, National Space Institute, Technical University of Denmark, Kongens Lyngby, Denmark

Recommended Citation:
Olsen N.,Hulot G.,Lesur V.,et al. The Swarm Initial Field Model for the 2014 geomagnetic field[J]. Geophysical Research Letters,2015-01-01,42(4).
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