M
Maria Usanova
Researcher at University of Colorado Boulder
Publications - 55
Citations - 2796
Maria Usanova is an academic researcher from University of Colorado Boulder. The author has contributed to research in topics: Van Allen radiation belt & Plasmasphere. The author has an hindex of 22, co-authored 42 publications receiving 2132 citations. Previous affiliations of Maria Usanova include Moscow State University & University of Alberta.
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Journal ArticleDOI
Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground-based and Van Allen Probes observations
Maria Usanova,Alexander Drozdov,Alexander Drozdov,Ksenia Orlova,Ksenia Orlova,Ian R. Mann,Yuri Shprits,Yuri Shprits,Yuri Shprits,Matthew Robertson,Drew Turner,David K. Milling,A. Kale,Daniel N. Baker,Scott Thaller,Geoffrey D. Reeves,Harlan E. Spence,Craig Kletzing,John R. Wygant +18 more
TL;DR: In this paper, the effect of electromagnetic ion cyclotron (EMIC) waves on the loss and pitch angle scattering of relativistic and ultrarelativistic electrons during the recovery phase of a moderate geomagnetic storm on 11 October 2012 was studied.
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The Upgraded CARISMA Magnetometer Array in the THEMIS Era
Ian R. Mann,David K. Milling,I. J. Rae,Louis Ozeke,A. Kale,Z. C. Kale,Kyle R. Murphy,Adrienne Parent,Maria Usanova,D. M. Pahud,E.-A. Lee,V. Amalraj,D. D. Wallis,Vassilis Angelopoulos,Karl-Heinz Glassmeier,Christopher T. Russell,H. U. Auster,Howard J. Singer +17 more
TL;DR: The infrastructure and capabilities of the expanded and upgraded Canadian Array for Realtime InvestigationS of Magnetic Activity (CARISMA) magnetometer array in the era of the THEMIS mission are described and some of the compelling questions related to these three ThemIS mission science objectives are discussed.
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THEMIS observations of electromagnetic ion cyclotron wave occurrence: Dependence on AE, SYMH, and solar wind dynamic pressure
TL;DR: In this paper, the authors used an automated detection algorithm of EMIC Pc1 waves observed by THEMIS between May 2007 to December 2011 and present the occurrence rate of those waves as a function of L-shell, magnetic local time (MLT), Pdyn, AE, and SYMH.
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Unusual stable trapping of the ultrarelativistic electrons in the Van Allen radiation belts
Yuri Shprits,Yuri Shprits,Yuri Shprits,D. Subbotin,Alexander Drozdov,Alexander Drozdov,Maria Usanova,Adam Kellerman,Ksenia Orlova,Ksenia Orlova,Ksenia Orlova,Daniel N. Baker,Drew Turner,Kyung-Chan Kim +13 more
TL;DR: The Van Allen radiation belts are two rings of charged particles encircling the Earth and the transient appearance in 2012 of a third ring between the inner and outer belts was a surprise.
Journal ArticleDOI
Multipoint observations of magnetospheric compression‐related EMIC Pc1 waves by THEMIS and CARISMA
Maria Usanova,Ian R. Mann,I. J. Rae,Z. C. Kale,Vassilis Angelopoulos,John W. Bonnell,Karl-Heinz Glassmeier,H. U. Auster,Howard J. Singer +8 more
TL;DR: In this paper, the authors show that electromagnetic ion cyclotron (EMIC) wave activity appears to be confined to a region of higher plasma density in the vicinity of the plasmapause, as verified by ground-based crossphase analysis.