TY - JOUR
TI - Ionospheric D-region temperature relaxation and its influences on radio signal propagation after solar X-flares occurrence
AU - Bajčetić Jovan
AU - Nina Aleksandra
AU - Čadež Vladimir M
AU - Todorović Branislav M
JN - Thermal Science
PY - 2015
VL - 19
IS - 12
SP - 299
EP - 303
PT - Article
AB - In this paper our attention is focused on relations between radio signal  propagation characteristics and temperature changes in D-region after solar  X-flare occurrence. We present temperature dependencies of electron plasma  frequency, the parameter that describes medium conditions for propagation of  an electromagnetic wave, and the refractive index which describes how this  wave propagates. As an example for quantitative calculations based on  obtained theoretical equations we choose the reaction of the D-region to the  solar X-flare occurred on May 5th, 2010. The ionospheric modelling is based  on the experimental data obtained by low ionosphere observations using very  low frequency radio signal. [Projekat Ministarstva nauke Republike Srbije,  br. III-44002, 176002, 176004 i br. TR-32030]