Accession Number : ADA101425


Title :   The STP/S3-4 Satellite Experiment: Equatorial F-region Irregularities.


Descriptive Note : Memorandum rept.,


Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC


Personal Author(s) : Singh,M ; Szuszczewicz,E P ; Holmes,J C


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA101425


Report Date : 14 Jul 1981


Pagination or Media Count : 17


Abstract : The S3-4 'in situ' satellite observations near the nighttime equator (2230 LT) have shown irregularity structures with depletions in plasma density up to 3 orders of magnitude and ranges in horizontal extent from less than 1 km to tens of kms. The holes have sharper gradients on the eastern boundary than across the western counterpart, and the power spectral indices in the irregularities lie between 1.9-2.5 in the intermediate wavelength domain. The east-west assymmetry of the depletions is also shown in the irregularity intensity and spectral strengths. The variations in density are more intense on the western wall of the holes suggesting a scintillation enhancement on the western boundary. In addition, the results of power spectral analyses support the role of the Rayleigh-Taylor instability in the generation of intermediate scale size irregularities during the occurrence of equatorial spread-F. (Author)


Descriptors :   *F REGION , DEPLETION , DENSITY , MEASUREMENT , PLASMAS(PHYSICS) , VARIATIONS , HOLES(OPENINGS) , ARTIFICIAL SATELLITES , STATISTICAL ANALYSIS


Subject Categories : Atmospheric Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE