Relationship between substorm onset locations and nightside convection pattern features

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

This paper presents a study using the Super Dual Auroral Radar Network (SuperDARN) convection database in conjunction with a list of substorm onsets determined from the IMAGE satellite to examine the relationship between substorm onset locations and features of the convection pattern. Particular attention is devoted to the latitude of onset locations compared to the latitude of the near-midnight convection reversal boundary (CRB) and the latitude at which the highest flow velocity (the flow peak) was observed equatorward of the CRB. Because of this focus, the set of observations examined is limited to cases where SuperDARN provided sufficient observations in the midnight sector to determine the latitude of the CRB. Distributions of the latitude difference between the onset location and the CRB and flow peak were examined for different times leading up to substorm onset and for a few different conditions. It was found that the onsets occurred equatorward of the CRB in more than 95% of the cases and that the distribution was approximately centered on the flow velocity peak.

Original languageEnglish (US)
Article numberA12202
JournalJournal of Geophysical Research: Space Physics
Volume114
Issue number12
DOIs
StatePublished - Dec 2009

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Fingerprint Dive into the research topics of 'Relationship between substorm onset locations and nightside convection pattern features'. Together they form a unique fingerprint.

Cite this