A5025214785- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Earthquake Detection and Analysis
- GNSS positioning and interference
- Atmospheric Ozone and Climate
- Geomagnetism and Paleomagnetism Studies
- Astro and Planetary Science
- Geophysics and Gravity Measurements
- Satellite Communication Systems
Pakistan Space and Upper Atmosphere Research Commission
2015-2024
Korea Astronomy and Space Science Institute
2022-2024
Korea University of Science and Technology
2024
This study reports comprehensive observations for the G5-level geomagnetic storm that occurred from May 10 to 12, 2024, most intense event since 2003 Halloween storm. The was triggered by a series of coronal mass ejections (CMEs) originating merging two active regions 13664/13668, which formed large and complex photospheric magnetic configuration produced X-class flares in early 2024. Among events, significant CME, driven an X2.2 flare on 9, caught up with merged preceding slower CME...
Abstract Using Time History of Events and Macroscale Interactions during Substorms (THEMIS) data, we studied the stepwise development in high‐latitude geomagnetic perturbations Pi1 Pi2 pulsations substorm onsets their association with auroral onset arc by analyzing four events. We found that which are magnetic signatures on ground show changes excitation similar to is visual manifestation substorm. observed minor small before initial brightening (IB), subsequent second at or around further...
Abstract. This work focuses on the progress of space weather monitoring in Pakistan. Pakistan's first geomagnetic observatory was established Quetta 1953. However, beginning what we would now call services a formal level took place 1971, when national agency, Pakistan Space and Upper Atmosphere Research Commission (SUPARCO), country's ionospheric station. Later, 1983, set up Karachi with aim providing high frequency (HF) support storm alerts to relevant users. With progression time, nations...
Critical frequency of F2 layer acquired by three ionosonde stations, Karachi (KHI, 24.95°N, 67.13°E), Multan (MUL, 30.18°N, 71.48°E) & Islamabad (ISL, 33.75°N, 73.13°E), in Pakistan has been compared with foF2 obtained from global ionospheric model IRI-2012 and computed regional using higher terms Emperical Orthogonal Functions (EOFs) during summer (July). The data at different phases solar epoches. computational sets number EOFs (L > 1) showed slight deviations observations respect to the...