91 citations · 387 across the 19 of their papers we have counts for
11 papers · 1 filter
On modelling the 2017 galactic cosmic ray depression
O. P. M. Aslam, D. MacTaggart, M. S. Potgieter +2
In the second half of 2017, as Solar Cycle 24 approached its minimum, a pronounced and rigidity-dependent depression in the galactic cosmic ray (GCR) proton flux was observed using…
Investigating the Efficacy of Topologically Derived Time Series for Flare Forecasting. II. XGBoost Model
Thomas Williams, Christopher B. Prior, David MacTaggart +1
Solar flares are a primary driver of space weather, and forecasting their occurrence remains a significant challenge. This paper presents a novel flare prediction model based on to…
The magnetic topology of AR13664 leading to its first halo CME
David MacTaggart, Tom Williams, OPM Aslam
In the first half of May 2024, the solar active region (AR)13664 was responsible for generating the strongest geomagnetic storm in over 20 years, through an enhanced production of…
Modulation of cosmic ray anti-protons in the heliosphere: simulations for a solar cycle
O. P. M. Aslam, M. S. Potgieter, Xi Luo +1
The precision measurements of galactic cosmic ray protons from PAMELA and AMS are reproduced using a well-established 3D numerical model for the period July 2006 - November 2019. T…
Unfolding Drift Effects for Cosmic Rays over the Period of the Sun's Magnetic Field Reversal
O. P. M. Aslam, Xi Luo, M. S. Potgieter +2
A well-established, comprehensive 3-D numerical modulation model is applied to simulate galactic protons, electrons and positrons from May 2011 to May 2015, including the solar mag…
Study of Cosmic-Ray Modulation during the Recent Unusual Minimum and Mini Maximum of Solar Cycle 24
O. P. M. Aslam, Badruddin
After a prolonged and deep solar minimum at the end of Cycle 23, the current Solar Cycle 24 is one of the lowest cycles. These two periods of deep minimum and mini maximum are sepa…
Study of the influence of solar variability on a regional (Indian) climate: 1901-2007
O. P. M. Aslam, Badruddin
We use Indian temperature data of more than 100 years to study the influence of solar activity on climate. We study the Sun-climate relationship by averaging solar and climate data…
Fluctuations in the interplanetary electric potential and energy coupling between the solar-wind and the magnetosphere
Badruddin, O. P. M. Aslam
We utilize solar rotation average geomagnetic index ap and various solar wind plasma and field parameters for four solar cycles 20-23. We perform analysis to search for a best poss…
Similarities and Distinctions in Cosmic-Ray Modulation during Different Phases of Solar and Magnetic Activity Cycles
O. P. M. Aslam, Badruddin
We study the solar-activity and solar-polarity dependence of galactic cosmic-ray intensity (CRI) on the solar and heliospheric parameters playing a significant role in solar modula…
Study of the solar wind-magnetosphere coupling on different time scales
Badruddin, O. P. M. Aslam
Solar wind-magnetosphere coupling, its causes and consequences have been studied for the last several decades. However, the assessment of continuously changing behaviour of the sun…
Solar Modulation of Cosmic Rays during the Declining and Minimum Phases of Solar Cycle 23: Comparison with Past Three Solar Cycles
O. P. M. Aslam, Badruddin
We study solar modulation of galactic cosmic rays (GCRs) during the deep solar minimum, including the declining phase, of solar cycle 23 and compare the results of this unusual per…