Accession Number:

ADA279415

Title:

Ionospheric Plasma Drift and Structure Studies at High and Mid- Latitudes. Volume 1

Descriptive Note:

Final rept. Oct 1990-Oct 1993

Corporate Author:

MASSACHUSETTS UNIV LOWELL CENTER FOR ATMOSPHERIC RESEARCH

Report Date:

1993-12-01

Pagination or Media Count:

69.0

Abstract:

Ground-based observations of the high latitude ionosphere with Digisonde sounders at Quaanaaq, Sondrestrom, Goose Bay, Argentina and Millstone Hill provide a description of the patch structure and the convection pattern in the polar cap. Correlation analysis of observed F-region plasma drifts with the orientation of the interplanetary magnetic field measured by IMP8 lead to a new technique of deducing the signs of Bz and By from the measured drifts. Real time calculation of the plasma drift was successfully introduced at one of the Digisonde stations Sondrestrom providing the possibility of determining the IMF components in real time. Analysis of mid-latitude trough observation shows large westward velocities in the trough region. Digisonde data from Quaanaaq and DMSP F8 and F9 satellite data showed the development of the ionospheric polar hole.

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE