Case study of polar scintillation modeling using DE (Dynamics Explorer) 2 irregularity measurements at 800 km. Scientific report No. 2, 5 October 1987-30 September 1988

Technical Report · Mon Aug 01 00:00:00 EDT 1988

OSTI ID:6493942

Basu, S; Basu, S; Weber, E J; Coley, W R

Although a satellite-borne irregularity sensor obviously cannot measure scintillations, the question of what contribution such a sensor can make to model or predict scintillations is addressed. To pursue the problem, the Dynamics Explorer 2 (DE 2) ionospheric electron density irregularity data obtained at approximately 800-km altitude in the winter polar cap during sunspot maximum conditions were utilized. During this period an all-sky imaging photometer located at Thule, Greenland, within the polar cap, detected the presence of convecting ionization patches, and polar beacon satellite measurements detected several discrete, intense scintillation structures associated with these patches (E. J. Weber et al., 1984). The electron-density deviation (delta N) obtained by combining irregularity amplitudes (delta N/N)rms processed over 8-s intervals and the in-situ density (N) data acquired by the DE 2 satellite also showed the presence of spatially discrete structures. These irregularity structures, both in N and delta N, had spatial extents of approx. 1000 km in the N-S direction. The density associated with these structures, even at 800 km, showed a twofold to threefold to increase in comparison to the background, and irregularity amplitudes (delta N/N)rms as large as 20% were observed at the edges of the patches.

• Research Organization: Emmanuel Coll., Boston, MA (USA)
• OSTI ID: 6493942
• Report Number(s): AD-A-200654/2/XAB
• Resource Relation: Other Information: Pub. in Radio Science, Vol. 23, No. 4, 545-553(Jul-Aug 1988)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
IONOSPHERE
ELECTRON DENSITY
POLAR REGIONS
SCINTILLATIONS
MEASURING METHODS
SOLAR ACTIVITY
DYNAMICS
GREENLAND
IONIZATION
PROGRESS REPORT
DOCUMENT TYPES
EARTH ATMOSPHERE
MECHANICS
PLANETARY IONOSPHERES
640201* - Atmospheric Physics- Auroral
Ionospheric
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640104 - Astrophysics & Cosmology- Solar Phenomena