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Alternative TitleNumerical simulation about the influence of different initial disturbance on the ionosphere spread-F
高泽; 方涵先; 汪四成; 杨升高
Source Publication地球物理学报
Keyword电子密度扰动 扩展f 数值模拟
Other AbstractThe triggering role of different factors like gravity wave,neutral wind,and electric field in the formation of ionosphere spread-F is a hot issue. Based on a physical model which is developed to present the development of ionosphere spread-F, the reliability of this model is firstly proved by analysis of the effects of eastward electric field and background wind field on spread-F and comparison with experience. Then, on a given background, the spread-F triggered by three disturbances of the initial electron density of different scale is simulated in this paper. The possibility of causing a certain scale perturbation and triggering spread-F by chemical release is also demonstrated. The results show that strong electric-field intensity and eastward neutral wind are beneficial to the development of spread-F, proving that the physical model is reliable; there is an inflection point of the uplift rate of spread-F in the development process, after which spread-F is triggered and developed, and the electron density disturbances with short wavelength are much more beneficial to the triggering and development of spread-F than that of long wavelength; chemical H_2O can produce localized electron density depletion effectively, and it can form a certain scale initial disturbance of electron density for triggering spread-F in the ionosphere, indicating that chemical release could be used as a way to trigger spread-F artificially.
Indexed BySCI ; EI ; CSCD
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Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
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GB/T 7714
高泽,方涵先,汪四成,等. 不同初始扰动对电离层扩展F影响的数值模拟[J]. 地球物理学报,2017,60(2):470-479.
APA 高泽,方涵先,汪四成,&杨升高.(2017).不同初始扰动对电离层扩展F影响的数值模拟.地球物理学报,60(2),470-479.
MLA 高泽,et al."不同初始扰动对电离层扩展F影响的数值模拟".地球物理学报 60.2(2017):470-479.
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