Bibliographic Citation
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| Title | 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 |
| Creator/Author | Basu, S. ; Basu, S. ; Weber, E.J. ; Coley, W.R. |
| Publication Date | 1988 Aug 01 |
| OSTI Identifier | OSTI ID: 6493942 |
| Report Number(s) | AD-A-200654/2/XAB |
| Resource Type | Technical Report |
| Resource Relation | Other Information: Pub. in Radio Science, Vol. 23, No. 4, 545-553(Jul-Aug 1988) |
| Research Org | Emmanuel Coll., Boston, MA (USA) |
| Subject | 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 |
| Description/Abstract | 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. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: X; Size: Pages: 10 |
| Availability | NTIS, PC A02/MF A01. |
| System Entry Date | 2008 Feb 07 |
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