Mahajan, K. K. (1978) Electron concentration profiles in the E- and F-region during sunrise and sunset Indian Journal of Radio and Space Physics, 7 . pp. 132-134. ISSN 0367-8393
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Official URL: http://adsabs.harvard.edu//abs/1978IJRSP...7..132M
Abstract
Electron concentration profiles during sunrise and sunset periods, observed with the Arecibo incoherent scatter radar, are presented. The measurements are made in the height range of 100-150 km, using short pulses resulting in a height resolution of 15 km. Electron concentrations are observed to change by more than an order of magnitude during these periods in the height range of 120-200 km. The changes are rather small in the Es and in the F2 region and thus a large valley is developed between 100 and 200 km, with a minimum of electron concentration at about 140 km. The fast decay of electron concentration during sunset is used to estimate the effective recombination coefficient which is then compared with the experimental values.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to National Institute of Science Communication and Information Resources. |
| Keywords: | Diurnal Variations; E Region; Electron Density Profiles; F Region; Ionospheric Electron Density; Ionograms; Sunrise; Sunset |
| ID Code: | 75805 |
| Deposited On: | 27 Dec 2011 12:38 |
| Last Modified: | 27 Dec 2011 12:38 |
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