Pre-noon high-latitude auroral arcs as a manifestation of the interchange instability

• Main Authors: Kozlovsky, A. E., Safargaleev, V. V., Jussila, J. R. T., Koustov, A. V.
• Other Authors: Sodankylä Geophysical Observatory, University of Oulu, Department of Physical Sciences Oulu, Polar Geophysical Institute of Russian Academy of Sciences (PGI), Russian Academy of Sciences Moscow (RAS), Department of Physics and Engineering Physics, University of Saskatchewan Saskatoon (U of S)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2003
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Barentsburg; Svalbard
• Online Access: https://hal.science/hal-00317199; https://hal.science/hal-00317199/document; https://hal.science/hal-00317199/file/angeo-21-2303-2003.pdf

International audience On 7 December 2000, TV ASC camera in Barentsburg (Svalbard) observed pre-noon (at 09:00?10:00 MLT) rayed auroral arcs, which occurred at the pole-ward edge of the auroral oval after an IMF transition from B y -dominated ( B y = + 8.8, B z = + 4.3) to strongly northward dominat...