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Earth, Planets and Space

, Volume 58, Issue 9, pp 1113–1121 | Cite as

Combined ground-based optical support for the aurora (DELTA) sounding rocket campaign

  • Eoghan Griffin
  • Mike Kosch
  • Anasuya Aruliah
  • Andrew Kavanagh
  • Ian McWhirter
  • Andrew Senior
  • Elaina Ford
  • Chris Davis
  • Takumi Abe
  • Junichi Kurihara
  • Kirsti Kauristie
  • Yasunobu Ogawa
Open Access
Article

Abstract

The Japan Aerospace Exploration Agency (JAXA) DELTA rocket experiment, successfully launched from Andøya at 0033 UT on December 13, 2004, supported by ground based optical instruments, primarily 2 Fabry- Perot Interferometers (FPIs) located at Skibotn, Norway (69.3°N, 20.4°E) and the KEOPS Site, Esrange, Kiruna, Sweden (67.8°N, 20.4°E). Both these instruments sampled the 557.7 nm lower thermosphere atomic oxygen emission and provided neutral temperatures and line-of-sight wind velocities, with deduced vector wind patterns over each site. All sky cameras allow contextual auroral information to be acquired. The proximity of the sites provided overlapping fields of view, adjacent to the trajectory of the DELTA rocket. This allowed independent verification of the absolute temperatures in the relatively quiet conditions early in the night, especially important given the context provided by co-located EISCAT ion temperature measurements which allow investigation of the likely emission altitude of the passive FPI measurements. The results demonstrate that this altitude changes from 120 km pre-midnight to 115 km post-midnight. Within this large scale context the results from the FPIs also demonstrate smaller scale structure in neutral temperatures, winds and intensities consistent with localised heating. These results present a challenge to the representation of thermospheric variability for the existing models of the region.

Key words

Polar aeronomy lower thermosphere Fabry-Perot Interferometer 

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Copyright information

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2006

Authors and Affiliations

  • Eoghan Griffin
    • 1
  • Mike Kosch
    • 2
    • 7
  • Anasuya Aruliah
    • 1
  • Andrew Kavanagh
    • 2
  • Ian McWhirter
    • 1
  • Andrew Senior
    • 2
  • Elaina Ford
    • 1
  • Chris Davis
    • 3
  • Takumi Abe
    • 4
  • Junichi Kurihara
    • 4
  • Kirsti Kauristie
    • 5
  • Yasunobu Ogawa
    • 6
  1. 1.Atmospheric Physics LaboratoryUniversity College LondonLondonUK
  2. 2.Communication SystemsLancaster UniversityLancasterUK
  3. 3.Space Science DepartmentRutherford Appleton LaboratoryOxfordUK
  4. 4.Institute of Space and Astronautical ScienceJapan Aerospace Exploration AgencySagamihara, KanagawaJapan
  5. 5.Finnish Meteorological InstituteHelsinkiFinland
  6. 6.Solar-Terrestrial Environment LaboratoryNagoya UniversityNagoyaJapan
  7. 7.Honorary Research FellowUniversity of Kwazulu-NatalDurbanSouth Africa

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