空间科学学报2017，Vol.37Issue(5)：531-537,7.DOI:10.11728/cjss2017.05.531
南京地区斜向加热电离层效应数值模拟
Numerical Simulation of Oblique Ionospheric Heating Effects in Nanjing District
摘要
Abstract
Compared with vertical heating,oblique ionospheric heating has advantages of higher flexibility,wider effect range and more practicable operability.In this paper,based on the energy conservation equation and continuity equation of electron,the physical model is built for lower ionosphere heated by oblique radio wave by considering Ohm absorption in the non-deviated section,and oblique heating in low ionosphere over Nanjing district is simulated using the background parameters obtained by IRI-2007 and NRLMSISE-00 models.The results show that heating effect increases when incident elevation angle and effective radiated power increase.The rising amplitude of electronic temperature and density decreases when the frequency of radio wave increases.The perturbation amplitudes of electron temperature and density caused by X mode are bigger than those caused by O mode,and X mode can make electron temperature and electron density reach a steady state more quickly than O mode.Within a certain range,the radio wave with smaller incident elevation angle,lower frequency and larger effective power can make electron density reach a steady state more quickly,and the latter two can also accelerate the process of electron temperature to reach stability.The time that electron temperature to reach stability varies singlet with elevation angle of incident electromagnetic wave,and will be a maximum as the elevation angle is 62°.关键词
无线电波/低电离层/斜向加热/电子温度/电子密度Key words
Radio waves/Low ionosphere/Oblique heating/Electron temperature/Electron density分类
天文与地球科学引用本文复制引用
郭哲,方涵先,赫英明,杨鼎,马杰,敬文琪,王世旗..南京地区斜向加热电离层效应数值模拟[J].空间科学学报,2017,37(5):531-537,7.基金项目
国家自然科学基金项目(40505005)和国家重点实验室专项基金项目共同资助 （40505005）
