Geomagnetic storms in the Antarctic F-region. I. Diurnal and seasonal patterns for main phase effects |
| |
| Affiliation: | 1. School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, Shaanxi 710071, China;2. National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao, Shandong 266170, China;1. Department of Environmental Health Engineering, School of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran;2. Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;3. Research Center for Health Sciences, Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;4. Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;1. Department of Physics, University of Ilorin, Ilorin, Nigeria;2. Department of Physics, Kebbi State University of Science and Technology, Aliero, Kebbi State, Nigeria;1. Space Research Institute, Austrian Academy of Sciences, Graz, Austria;2. Department of Physics, University of Bari, Bari, Italy;3. Software Engineering, Campus 02, University of Applied Sciences, Graz, Austria;4. Laboratoire Atmosphères, Milieux, Observations Spatiales, CNRS, IPSL, Guyancourt, France;5. Federal Office of Metrology and Surveying, Vienna, Austria;6. Laboratoire de Physique et Chimie de l''Environnement, Orléans, France;1. School of Electrical Engineering, Royal Institute of Technology KTH, Stockholm, Sweden;2. Southwest Research Institute, San Antonio, TX, USA;3. Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany;4. University of Texas at San Antonio, San Antonio, TX, USA;1. Finnish Meteorological Institute, Helsinki, Finland;2. CNRS-Orleans, Orleans, France;3. University of Pisa, Italy |
| |
| Abstract: | New analysis procedures are used to show that the main phase mid-latitude storm effects conform to consistent patterns in local time when suitable selection rules are applied, with averaging over several years. Changes in , with respect to estimated quiet-time values, are analysed in terms of ap(τ), a new geomagnetic index derived to take account of integrated disturbance. Reduction of is greatest during the early morning hours, in summer, at higher geomagnetic latitudes, near solar minimum and through the more active periods. The various dependencies are quantitatively determined for the first time by creating an average ‘steady state’ disturbance, rather than following specific storm events. This approach will permit tests of competing theories using available modelling programs. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
