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Title: Multi-wavelength optical imaging of ionospheric plasma depletions
Authors: Sinha, H S S
Misra, R N
Chandra, H
Raizada, Shikha
Dutt, N
Vyas, G D
Issue Date: Feb-1996
Publisher: NISCAIR-CSIR, India
Abstract: An all sky optical imaging system using a high gain image intensifier has been built to study a class of equatorial spread-F irregularities which are known as plasma depletions. The 630 nm and 777.4 nm nightglow emission lines, which come essentially from regions about 50 km below the F2-peak and F2-peak respectively, are used to study the plasma depletions when they are located at these altitudes. The newly developed optical imaging system and a VHF Scintillation receiver were operated along with the digital ionosonde from SHAR, India (14°N, 80°N, dip 14°N), during February 1993. Preliminary results are presented here to demonstrate the system capabilities for studying ionospheric plasma depletions.
Page(s): 44-52
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.25(1) [February 1996]

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