Theoretical study of topside ionospheric clutter. Final report, 28 March 1990-27 March 1992
Technical Report
·
OSTI ID:6822764
The sponsored research is aimed at understanding the small scale topside ionospheric plasma structures first observed at Millstone Hill, Massachusetts with the 440 MHz incoherent scatter radar. These small scale obliquely propagating plasma modes occurring in the vicinity of the mid-latitude ionospheric trough, have large radar cross-sections and narrow spectral widths. They have, until recently, been dismissed solely as hard target contamination of the incoherent scatter radar. The geophysical conditions associated with the ionospheric trough, such as the field aligned current activity and steep plasma density gradients, suggest that these recently discovered small scale topside ionospheric plasma structures may also appear in the auroral and polar regions. This speculation has been corroborated by our preliminary experiments and data analyses at Tromso, Norway and Sondrestromfjord, Greenland. Presented in this final report are our research results and Arecibo experiments simulating the geophysical conditions of generating these topside ionospheric plasma structures. Recommendation for the future research is also given.... Enhanced Radar Backscatter (ERB), Ion acoustic waves, Langmuir wave turbulence, Particle precipitation, Field aligned currents. Wave-wave coupling processes.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge, MA (United States)
- OSTI ID:
- 6822764
- Report Number(s):
- AD-A-260982/4/XAB; CNN: F19628-90-K-0024
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radio stimulation and diagnostics of space plasmas. Progress report
UHF radar-backscatter enhancements from the topside ionosphere
DURIP instrumentation support for high-latitude ionospheric research and the establishment of a dual radar/dual frequency observational capability at the Millstone Radar Facility. Final report, 1 Dec 88-30 Jun 91
Technical Report
·
Sun Jan 31 23:00:00 EST 1993
·
OSTI ID:6174603
UHF radar-backscatter enhancements from the topside ionosphere
Technical Report
·
Thu May 03 00:00:00 EDT 1990
·
OSTI ID:6389257
DURIP instrumentation support for high-latitude ionospheric research and the establishment of a dual radar/dual frequency observational capability at the Millstone Radar Facility. Final report, 1 Dec 88-30 Jun 91
Technical Report
·
Sun Oct 27 23:00:00 EST 1991
·
OSTI ID:5594169
Related Subjects
661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAE
BACKSCATTERING
BENCH-SCALE EXPERIMENTS
CHARGED PARTICLES
CROSS SECTIONS
CRYOSPHERE
DATA
DEVELOPED COUNTRIES
DIAGNOSTIC USES
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
EUROPE
GEOGRAPHICAL VARIATIONS
GREENLAND
INCOHERENT SCATTERING
INFORMATION
ION ACOUSTIC WAVES
ION WAVES
IONOSPHERE
IONS
LANGMUIR FREQUENCY
LATITUDE EFFECT
MEASURING INSTRUMENTS
NORWAY
NUMERICAL DATA
PLANETARY IONOSPHERES
PLASMA DENSITY
PLASMA WAVES
PLASMASPHERE
POLAR REGIONS
RADAR
RANGE FINDERS
RESEARCH PROGRAMS
SCANDINAVIA
SCATTERING
THEORETICAL DATA
TURBULENCE
USES
VARIATIONS
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AURORAE
BACKSCATTERING
BENCH-SCALE EXPERIMENTS
CHARGED PARTICLES
CROSS SECTIONS
CRYOSPHERE
DATA
DEVELOPED COUNTRIES
DIAGNOSTIC USES
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
EUROPE
GEOGRAPHICAL VARIATIONS
GREENLAND
INCOHERENT SCATTERING
INFORMATION
ION ACOUSTIC WAVES
ION WAVES
IONOSPHERE
IONS
LANGMUIR FREQUENCY
LATITUDE EFFECT
MEASURING INSTRUMENTS
NORWAY
NUMERICAL DATA
PLANETARY IONOSPHERES
PLASMA DENSITY
PLASMA WAVES
PLASMASPHERE
POLAR REGIONS
RADAR
RANGE FINDERS
RESEARCH PROGRAMS
SCANDINAVIA
SCATTERING
THEORETICAL DATA
TURBULENCE
USES
VARIATIONS