Rocket and ground‐based measurements of the dayside magnetospheric cleft from Cape Parry, N.W.T. | Zendy

Shepherd G. G. | Zendy; Pieau J. F. | Zendy; Creutzberg F. | Zendy; McNamara A. G. | Zendy; Gerard J. C. | Zendy; McEwem D. J. | Zendy; Delana B. | Zendy; Whitteker J. H. | Zendy

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Rocket and ground‐based measurements of the dayside magnetospheric cleft from Cape Parry, N.W.T.

Author(s) -

Shepherd G. G.,

Pieau J. F.,

Creutzberg F.,

McNamara A. G.,

Gerard J. C.,

McEwem D. J.,

Delana B.,

Whitteker J. H.

Publication year - 1976

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/gl003i002p00069

Subject(s) - rocket (weapon) , physics , electron precipitation , daytime , parry , geophysics , polar , magnetosphere , geology , atmospheric sciences , astronomy , aerospace engineering , plasma , quantum mechanics , engineering , artificial intelligence , computer science

On Dec. 6, 1974, a Black Brant VB rocket was launched from Cape Parry, N.W.T. into the dayside magnetospheric cleft. The prime launch criterion was the detection of 6300 Å emission by two ground based scanning photometers, but support was provided by two ionosondes. The payload passed through a narrow region of several ergs cm −2 sr −1 sec −1 of soft electron precipitation, a broader region of enhanced electron densities, and a similarly broad region of 0I5577 and 6300 Å emission. At apogee of 236 km the payload had not penetrated into the 5200 Å emission, which had a very sharp equatorward boundary, and extended far into the polar cap, presumably as a result of anti‐sunward convection.

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