The SRI Ionospheric Structure and Dynamics Program - 1985 Results.

This report describes recent observations of high latitude ionospheric structure and dynamics from the HILAT satellite and the Sondrestrom and EISCAT incoherent scatter radars. Plasma turbulence theory and ionospheric plasma diffusion processes are also described. Measured variations in latitude and...

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Bibliographic Details
Main Authors: Vickrey,James F, Livingston,Robert C, Tsunoda,Roland T, Rino,Charles L, Walker,Nancy B
Other Authors: SRI INTERNATIONAL MENLO PARK CA
Format: Text
Language:English
Published: 1985
Subjects:
Atmospheric Physics
Active & Passive Radar Detection & Equipment
Plasma Physics and Magnetohydrodynamics
Radiofrequency Wave Propagation
Radio Communications
*ELECTROMAGNETIC SCATTERING
*RADAR SIGNALS
*IONOSPHERIC SCINTILLATION
*RADIO WAVES
IONOSPHERE
POLAR REGIONS
STABILITY
PLASMAS(PHYSICS)
ELECTRON DENSITY
THEORY
CONVECTION
TURBULENCE
CYCLES
SEASONAL VARIATIONS
DIFFUSION
INCOHERENT SCATTERING
HIGH LATITUDES
ELECTROSTATICS
GRADIENTS
ARCTIC REGIONS
ELECTRODYNAMICS
MAGNETOSPHERE
SCIENTIFIC SATELLITES
Plasma instabilities
Hilat satellites
PE62715H
LPN-SRI-5416
WUDH006533
WU72
Arctic
EISCAT
Online Access:http://www.dtic.mil/docs/citations/ADA168115
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA168115
Description
Summary:This report describes recent observations of high latitude ionospheric structure and dynamics from the HILAT satellite and the Sondrestrom and EISCAT incoherent scatter radars. Plasma turbulence theory and ionospheric plasma diffusion processes are also described. Measured variations in latitude and local time of total electron content, levels of radio wave scintillation, and magnetospheric electrodynamics are presented for the northern polar regions. Seasonal and solar cycle variations of these phenomena are examined. Magnetic flux tube interchange produced by magnetospheric electrostatic turbulence (rather than local instability polarization fields) is suggested as an important source of high latitude ionospheric structure. The large scale magnetospheric potential field is also shown to be capable of steepening and structuring plasma gradients. These processes would certainly structure late time nuclear produced plasma. Keywords: Radio wave scintillation; Plasma turbulence; Ionospheric irregularities; Total electron content; and Convective plasma instabilities.

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