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http://nopr.niscpr.res.in/handle/123456789/36822| Title: | Ion-neutral Collision Frequency Variations in the Lower Thermosphere from Incoherent Scatter Measurements |
| Authors: | Mahajan, K K Jain, V C Kohli, R |
| Issue Date: | Dec-1982 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Incoherent scatter measurements of ion-neutral collision frequency (vin) in the lower thermosphere at Arecibo (18.4ᵒN, 67ᵒW) are analyzed for the period Aug. 1974 to May 1977. Results indicate a gradual increase of vin from morning to evening in summer by about a factor of two. This behavior reverses in winter when the value decreases from morning to evening. The ion-neutral collision frequency also shows large variability from one observation to next. These results are discussed in relation to static diffusion models which assume constant boundary conditions at the turbopause. |
| Page(s): | 225-228 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.11(6) [December 1982] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 11(6) 225-228.pdf | 252.95 kB | Adobe PDF | View/Open |
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