GPS L-band scintillations and ionospheric irregularity zonal drifts inferred at equatorial and low-latitude regions |
| |
| Institution: | 1. Divisão de Aeronomia, Instituto Nacional de Pesquisas Espaciais, Av. dos Astronautas, 1758, Jd. da Granja, 12227-010 São José dos Campos, SP, Brazil;2. School of Electrical and Computer Engineering, Cornell University, Ithaca, 14853 NY, USA;3. Space Vehicles Directorate, Air Force Research Laboratory, Hanscon AFB, USA;1. Department of Physics, Govt. College for women, Srikakulam 532 001, Andhra Pradesh, India;2. Department of Physics, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, India;1. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008;2. Key Laboratory for Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210008;3. University of Chinese Academy of Sciences, Beijing 100049;1. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008;2. Key Laboratory of Space Object and Debris Observation, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008;3. University of Science and Technology of China, Hefei 230026;1. Computational Space Physics Group, Lab for Computing and Applied Math (LABAC), National Institute for Space Research (INPE), Av. dos Astronautas, 1758, São José dos Campos, São Paulo 12227-690, Brazil;2. Aeronomy Division, National Institute for Space Research (INPE), Av. dos Astronautas, 1758, São José dos Campos, São Paulo 12227-690, Brazil;3. China-Brazil Joint Laboratory for Space Weather, NSSC/INPE, Av. dos Astronautas, 1758, São José dos Campos, São Paulo 12227-690, Brazil;4. State Key Laboratory of Space Weather, National Space Science Center (NSSC), Chinese Academy of Sciences, No. 1, Nanertiao, Zhongguancun, Haidian District, Beijing 100190, China;5. School of Physics and Mathematics, Autonomous University of Nuevo León (UANL), Av. Universidad s/n, Cd. Universitaria, San Nicolás de los Garza, N.L. 66455, Mexico;1. SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China;2. School of Science, Xidian University, Xi′an 710071, China;3. MIT Haystack Observatory, Westford, MA, USA;4. Department of Physics, Lancaster University, Lancaster, LA1 4YR, UK |
| |
| Abstract: | The main scientific objective of this research is to study the spatial variability and dynamics of the F-region irregularities. To achieve this, amplitude scintillations at the L-band, total electron content (TEC) and irregularity drifts were measured, as part of the Conjugate Point Equatorial Experiment (COPEX) campaign, by a network of ground-based global positioning system (GPS) receivers. The observations reveal a strong variability in the evolution of the irregularities from the equator to low-latitudes, and their zonal velocities at conjugate sites present a decrease with local time, and also with latitude. Moreover, the scintillations appear to be correlated with strong TEC gradients in the equatorward edge of the enhanced equatorial anomaly peaks. Other relevant aspects of the observations are highlighted and discussed. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
