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CLUSTER and IMAGE: New ways to study the Earth's plasmasphere

dc.contributor.authorDe Keyser, J.
dc.contributor.authorCarpenter, D.L.
dc.contributor.authorDarrouzet, F.
dc.contributor.authorGallagher, D.L.
dc.contributor.authorTu, J.
dc.date2009
dc.date.accessioned2016-04-06T08:39:21Z
dc.date.available2016-04-06T08:39:21Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3331
dc.descriptionGround-based instruments and a number of space missions have contributed to our knowledge of the plasmasphere since its discovery half a century ago, but it is fair to say that many questions have remained unanswered. Recently, NASA's IMAGE and ESA's CLUSTER probes have introduced new observational concepts, thereby providing a nonlocal view of the plasmasphere. IMAGE carried an extreme ultraviolet imager producing global pictures of the plasmasphere. Its instrumentation also included a radio sounder for remotely sensing the spacecraft environment. The CLUSTER mission provides observations at four nearby points as the four-spacecraft configuration crosses the outer plasmasphere on every perigee pass, thereby giving an idea of field and plasma gradients and of electric current density. This paper starts with a historical overview of classical single-spacecraft data interpretation, discusses the non-local nature of the IMAGE and CLUSTER measurements, and emphasizes the importance of the new data interpretation tools that have been developed to extract non-local information from these observations. The paper reviews these innovative techniques and highlights some of them to give an idea of the flavor of these methods. In doing so, it is shown how the non-local perspective opens new avenues for plasmaspheric research. © 2009 Springer Science+Business Media B.V.
dc.languageeng
dc.titleCLUSTER and IMAGE: New ways to study the Earth's plasmasphere
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeCLUSTER
dc.subject.freeCluster mission
dc.subject.freeData interpretation
dc.subject.freeExtreme ultraviolet imager
dc.subject.freeGround-based instruments
dc.subject.freeIMAGE
dc.subject.freeMeasurement techniques
dc.subject.freeNonlocal
dc.subject.freePlasma gradients
dc.subject.freePlasmasphere
dc.subject.freeRadio sounder
dc.subject.freeSpace missions
dc.subject.freeData processing
dc.subject.freeNASA
dc.subject.freeSpace flight
dc.subject.freeSpacecraft
dc.subject.freeMagnetosphere
dc.source.titleSpace Science Reviews
dc.source.volume145
dc.source.issue1-2
dc.source.page7-53
Orfeo.peerreviewedYes
dc.identifier.doi10.1007/s11214-008-9464-7
dc.identifier.scopus2-s2.0-84861344119


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