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Validation of the stream function method used for reconstruction of experimental ionospheric convection patterns

dc.contributor.authorPapitashvili, V. O.en_US
dc.contributor.authorErshkovich, A. I.en_US
dc.contributor.authorIsraelevich, P. L.en_US
dc.date.accessioned2006-09-11T19:28:51Z
dc.date.available2006-09-11T19:28:51Z
dc.date.issued2000-04en_US
dc.identifier.citationIsraelevich, P. L.; Papitashvili, V. O.; Ershkovich, A. I.; (2000). "Validation of the stream function method used for reconstruction of experimental ionospheric convection patterns." Annales Geophysicae 18(4): 454-460. <http://hdl.handle.net/2027.42/47864>en_US
dc.identifier.issn1432-0576en_US
dc.identifier.issn0992-7689en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/47864
dc.description.abstractIn this study we test a stream function method suggested by Israelevich and Ershkovich for instantaneous reconstruction of global, high-latitude ionospheric convection patterns from a limited set of experimental observations, namely, from the electric field or ion drift velocity vector measurements taken along two polar satellite orbits only. These two satellite passes subdivide the polar cap into several adjacent areas. Measured electric fields or ion drifts can be considered as boundary conditions (together with the zero electric potential condition at the low-latitude boundary) for those areas, and the entire ionospheric convection pattern can be reconstructed as a solution of the boundary value problem for the stream function without any preliminary information on ionospheric conductivities. In order to validate the stream function method, we utilized the IZMIRAN electrodynamic model (IZMEM) recently calibrated by the DMSP ionospheric electrostatic potential observations. For the sake of simplicity, we took the modeled electric fields along the noon-midnight and dawn-dusk meridians as the boundary conditions. Then, the solution(s) of the boundary value problem (i.e., a reconstructed potential distribution over the entire polar region) is compared with the original IZMEM/DMSP electric potential distribution(s), as well as with the various cross cuts of the polar cap. It is found that reconstructed convection patterns are in good agreement with the original modeled patterns in both the northern and southern polar caps. The analysis is carried out for the winter and summer conditions, as well as for a number of configurations of the interplanetary magnetic field.en_US
dc.format.extent206565 bytes
dc.format.extent3115 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_US
dc.publisherSpringer-Verlag; EGS – Springer-Verlagen_US
dc.subject.otherAstronomyen_US
dc.subject.otherGeophysics/Geodesyen_US
dc.subject.otherGeosciencesen_US
dc.subject.otherIonosphere (Electric Fields and Currents; Plasma Convection; Modeling and Forecasting)en_US
dc.subject.otherAstrophysicsen_US
dc.subject.otherExtraterrestrial Physics, Space Sciencesen_US
dc.titleValidation of the stream function method used for reconstruction of experimental ionospheric convection patternsen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbsecondlevelAtmospheric, Oceanic and Space Sciencesen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumSpace Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan, USA; Danish Meteorological Institute, Copenhagen, Denmarken_US
dc.contributor.affiliationotherDepartment of Geophysics and Planetary Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Israelen_US
dc.contributor.affiliationotherDepartment of Geophysics and Planetary Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Israelen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/47864/1/585_2000_Article_180454.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1007/s00585-000-0454-7en_US
dc.identifier.sourceAnnales Geophysicaeen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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