[HTML][HTML] An extended SEIR model with vaccination for forecasting the COVID-19 pandemic in Saudi Arabia using an ensemble Kalman filter

R Ghostine, M Gharamti, S Hassrouny, I Hoteit - Mathematics, 2021 - mdpi.com
In this paper, an extended SEIR model with a vaccination compartment is proposed to
simulate the novel coronavirus disease (COVID-19) spread in Saudi Arabia. The model …

Towards an end-to-end analysis and prediction system for weather, climate, and marine applications in the red sea

I Hoteit, Y Abualnaja, S Afzal… - Bulletin of the …, 2021 - journals.ametsoc.org
Abstract The Red Sea, home to the second-longest coral reef system in the world, is a vital
resource for the Kingdom of Saudi Arabia. The Red Sea provides 90% of the Kingdom's …

Submesoscale processes in the upper red sea

P Zhan, D Guo, G Krokos, J Dong… - Journal of …, 2022 - Wiley Online Library
Spatial‐temporal submesoscale variabilities in the upper Red Sea and their generation
mechanisms, including frontogenesis, mixed‐layer instability (MLI), and symmetric instability …

Insights from very‐large‐ensemble data assimilation experiments with a high‐resolution general circulation model of the Red Sea

S Sanikommu, N Raboudi… - Quarterly Journal of …, 2024 - Wiley Online Library
Abstract Ensemble Kalman Filters (EnKFs), which assimilate observations based on
statistics derived from an ensemble of samples of ocean states, have become the norm for …

An elastic framework for ensemble-based large-scale data assimilation

S Friedemann, B Raffin - The international journal of high …, 2022 - journals.sagepub.com
Prediction of chaotic systems relies on a floating fusion of sensor data (observations) with a
numerical model to decide on a good system trajectory and to compensate non-linear …

Hindrance effect of tides on water exchanges between the Red Sea and the Gulf of Aden

D Guo, F Yao, P Zhan, G Krokos, I Hoteit - Frontiers in Marine Science, 2022 - frontiersin.org
As a semienclosed marginal sea, the Red Sea connects with the open ocean through a
narrow strait at its southern end, known as the Bab-al-Mandeb (BAM) strait. The water …

Optimal 3D time-energy trajectory planning for AUVs using ocean general circulation models

S Albarakati, RM Lima, T Theussl, I Hoteit, OM Knio - Ocean Engineering, 2020 - Elsevier
This paper develops a new approach for solving optimal time and energy trajectory planning
problems for Autonomous Underwater Vehicles (AUVs) in transient, 3D, ocean currents …

Adaptive ensemble optimal interpolation for efficient data assimilation in the red sea

H Toye, P Zhan, F Sana, S Sanikommu… - Journal of …, 2021 - Elsevier
Ensemble optimal interpolation (EnOI) is a variant of the ensemble Kalman filter (EnKF) that
operates with a static ensemble to drastically reduce its computational cost. The idea is to …

Multiobjective risk-aware path planning in uncertain transient currents: An ensemble-based stochastic optimization approach

S Albarakati, RM Lima, T Theußl… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
A multiobjective, risk-aware framework is developed for optimal path planning of
autonomous underwater vehicles operating in uncertain current. The uncertainty in the …

Dynamic load/propagate/store for data assimilation with particle filters on supercomputers

S Friedemann, K Keller, YS Lu, B Raffin… - Journal of computational …, 2024 - Elsevier
Abstract Several ensemble-based Data Assimilation (DA) methods rely on a
propagate/update cycle, where a potentially compute intensive simulation code propagates …