The influence of neutral temperatures and winds on the F-Iayer height |
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| Affiliation: | 1. Indian Institute of Geomagnetism, Navi Mumbai, 410218, India;2. National Centre for Polar and Ocean Research, Goa, 403804, India;3. Equatorial Geophysical Research Laboratory, Indian Institute of Geomagnetism, Tirunelveli, India;4. Manonmaniam Sundaranar University, Tirunelveli, India;1. Departamento de Física, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, Av. Independencia 1800, 4000, San Miguel de Tucumán, Argentina;2. Consejo Nacional de Investigaciones científicas y Técnicas, Godoy Cruz 2290, CABA, Argentina;1. Environment and Chemical Engineering College, Shanghai University, Shanghai, 200444, China;2. Shanghai Astronomical Observatory, Chinese Academy of Science, Shanghai, 200030, China;3. Tianjin Richsoft Electric Power Information Technology Co., Ltd, State Grid, Tianjin, 300384, China;1. National Institute of Meteorology and Hydrology, Bulgarian Academy of Sciences, 67 Tsarigradsko shose Blvd., 1784 Sofia, Bulgaria;2. Faculty of Physics, Sofia University “St. Kliment Ohridski”, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria;3. Bulatsa, Sofia, 1 Brussels Blvd., 1540 Sofia, Bulgaria;4. National Institute of Geophysics, Geodesy and Geography, Acad. G. Bonchev Str., bl. 3, 1113 Sofia, Bulgaria;1. Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Joint International Research Laboratory of Climate and Environment Change(ILCEC), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, 210044, China;2. Jiangxi Leadership Team Office of Weather Modification, Nanchang, 330096, China |
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| Abstract: | Observations of neutral winds and temperatures obtained using a FabryPerot interferometer at Beveridge (37°28′S, 145°6′E) have been combined with h'F measurements from ionosondes at Canberra (35°21′S, 149°10′E) and Hobart (42°54′S, 147° 12′E). Data from 16 nights have been used to study the response (height change) of the F2-layer to changes in neutral wind and temperature. The observations have been compared with the ‘servo’ model of Rishbeth. It is found that the ‘night stationary level’ of the F2-layer depends on temperature, with the height changing by (13 ± 6) km per 100K. This agrees well with the prediction of the ‘servo’ model. There is reasonable overall agreement between the observations and the model predictions for the change in height produced by a given meridional wind. However, there is considerable scatter in the individual comparisons due to the approximations used to apply the theory to the observations. In particular, the effect of electric fields on the F2-layer height has been ignored. |
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