DOI: 10.1002/2016GL068180
论文题名: Extracting ocean-generated tidal magnetic signals from Swarm data through satellite gradiometry
作者: Sabaka T.J. ; Tyler R.H. ; Olsen N.
刊名: Geophysical Research Letters
ISSN: 0094-9169
EISSN: 1944-8900
出版年: 2016
卷: 43, 期: 7 起始页码: 3237
结束页码: 3245
语种: 英语
英文关键词: geomagnetism
; gradiometry
; oceanic tides
; Swarm
Scopus关键词: Geomagnetism
; Oceanography
; Satellites
; Space flight
; Electrodynamic properties
; European Space Agency
; Gradiometry
; Magnetic field models
; Satellite constellations
; Satellite gradiometry
; Swarm
; Temporal resolution
; Magnetism
英文摘要: Ocean-generated magnetic field models of the Principal Lunar, M2, and the Larger Lunar elliptic, N2, semidiurnal tidal constituents were estimated through a "Comprehensive Inversion" of the first 20.5 months of magnetic measurements from European Space Agency's (ESA) Swarm satellite constellation mission. While the constellation provides important north-south along-track gradiometry information, it is the unique low-spacecraft pair that allows for east-west cross-track gradiometry. This latter type is crucial in delivering an M2 estimate of similar quality with that derived from over 10 years of CHAMP satellite data but over a shorter interval, at higher altitude, and during more magnetically disturbed conditions. Recovered N2 contains nonoceanic signal but is highly correlated with theoretical models in regions of maximum oceanic amplitude. Thus, satellite magnetic gradiometry may eventually enable the monitoring of ocean electrodynamic properties at temporal resolutions of 1 to 2 years, which may have important implications for the inference of ocean temperature and salinity. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981764759&doi=10.1002%2f2016GL068180&partnerID=40&md5=fa0f51e021e4f3ce6c9a75cbeadff03b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10132
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: Planetary Geodynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Recommended Citation:
Sabaka T.J.,Tyler R.H.,Olsen N.. Extracting ocean-generated tidal magnetic signals from Swarm data through satellite gradiometry[J]. Geophysical Research Letters,2016-01-01,43(7).