Comparison of ionospheric scintillation impact on the space weather events and GPS positioning | |
| Author | Akhil, Chitrapu Venkata |
| Call Number | AIT RSPR no.RS-19-02 |
| Subject(s) | Scintillation spectrometry Space environment Global Positioning System |
| Note | A research submitted in partial fulfilment of the requirements for the degree of Master of Engineering in Remote Sensing and Geographic Information Systems, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Interplanetary space weather occurrences are causing rapid shifts in the Global Navigation Satellite System signals which causes the scintillations in the ionosphere region due to effect of solar energy interacting with the electron content present. These electrons in ionosphere region are caused by the plasma bubble known as Equatorially Ionization Anomaly (EIA) in the regions of equator and have the effects in the polar region which are observed as auroras due to the different solar activities. These increase in solar activities show an adverse effect on signals by causing positional errors. Solar activities in ionosphere scintillation can be investigated from total electron content (TEC) and S4 by using the GPS SCINDA which is located at Asian institute of Technology, pathumthani, Thailand and the international GNSS services (lGS) reference station from chulalongkorn university, pathum wan, Thailand. From this study it can be stated that there exists a substantial influence of solar flare photons or corona mass ejection (CME) related geomagnetic storms are influence of space weather events on GPS positioning over Thailand region. Comparing the results from stations at AITB and CUSV maximum TEC and S4 values gives a clear conclusion that prominently CUSV station experiences higher TEC values than AIT during the same period. This difference can be due to formation of ionization crest exactly above the CUSV station. Comparison of the GPS positioning accuracy error of sever space weather event of CUSV and AITB. |
| Year | 2019 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Remote Sensing (RS) |
| Chairperson(s) | Tripathi, Nitin Kumar |
| Examination Committee(s) | Miyazaki, Hiroyuki ; Mozunmder, Chitrini |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology. 2019 |