Publications de Amirhossein Mostajabi

Exploring the portability of ML-based lightning nowcasting models

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi

Significant damages caused by lightning can be avoided by predicting lightning and taking precautionary measures. Here, a machine learning model is developed to nowcast lightning flashes using dew point temperature, precipitation, wind speed, wind directio ...

Elsevier2025

Mountaintop Gamma Ray Observations of Three Terrestrial Gamma‐Ray Flashes at the Säntis Tower, Switzerland With Coincident Radio Waveforms

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi, Antonio Sunjerga

We report on the mountain top observation of three terrestrial gamma-ray flashes (TGFs) that occurred during the summer storm season of 2021. To our knowledge, these are the first TGFs observed in a mountaintop environment and the first published European ...

2024

Lightning Nowcasting Using Solely Lightning Data

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi

Lightning is directly or indirectly responsible for significant human casualties and property damage worldwide. A timely prediction of its occurrence can enable authorities and the public to take necessary precautionary actions resulting in diminishing the ...

MDPI2023

Portability of Single-Station ML.Based Lightning Nowcasting Models

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi, Hannes Kohlmann

2023

Laser-guided lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Jean-Pierre Wolf, Pierre Walch, Clemens Herkommer, Amirhossein Mostajabi, Thomas Produit, Antonio Sunjerga, Victor Moreno

Lightning discharges between charged clouds and the Earth’s surface are responsible for considerable damages and casualties. It is therefore important to develop better protection methods in addition to the traditional Franklin rod. Here we present the fir ...

Nature Publishing Group2023

Laser-guided lightning using kHz filamentation at 1030 nm

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi, Antonio Sunjerga, Jonathan Leon Wolf

Controlling lightning is a long-time dream of mankind. Along with the rapid evolution of laser technologies, the idea to develop lightning protection based on filamentation of high-power ultrashort-pulse lasers emerged in the 1990s [1]. The goal of the Las ...

2023

Machine Learning Based Lightning Nowcasting using Single-Site Meteorological Observations and Lightning Location Systems Data

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi

2022

On the Use of Benford’s Law to Assess the Quality of the Data Provided by Lightning Locating Systems

Farhad Rachidi-Haeri, Marcos Rubinstein, Amirhossein Mostajabi, Wolfgang Schulz

Lightning causes significant damage and casualties globally by directly striking humans and livestock, by igniting forest fires, and by inducing electrical surges in electronic infrastructure, airplanes, rockets, etc. Monitoring the evolution of thundersto ...

2022

The Laser Lightning Rod Project

Marcos Rubinstein, Jean-Pierre Wolf, Pierre Walch, Mohammad Azadifar, Amirhossein Mostajabi, Thomas Produit, Antonio Sunjerga, Victor Moreno

2022

Augmenting the performance of impoverished sensor networks using machine learning and time reversal: Application to lightning nowcasting and location

Amirhossein Mostajabi

Lightning is formed in the atmosphere through the combination of intricate dynamic and microphysical processes. Mainly due to this complexity, attempts to solve the important problem of lightning prediction have generally failed to yield accurate results. ...

EPFL2021

X-rays observations at the Säntis Tower: Preliminary results

Farhad Rachidi-Haeri, Marcos Rubinstein, David Smith, Mohammad Azadifar, Amirhossein Mostajabi, Antonio Sunjerga

2021

Laser lightning rod and artificial fog dissipation

Farhad Rachidi-Haeri, Marcos Rubinstein, Jean-Pierre Wolf, Pierre Walch, Mohammad Azadifar, Clemens Herkommer, Amirhossein Mostajabi, Thomas Produit, Antonio Sunjerga, Victor Moreno

IEEE2021

A data-driven approach for lightning nowcasting with deep learning

Farhad Rachidi-Haeri, Marcos Rubinstein, Pedram Pad, Amirhossein Mostajabi

2021

Bidirectional Recoil Leaders in Upward Lightning Flashes Observed at the Säntis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Amirhossein Mostajabi, Antonio Sunjerga

We report the observation of three negative upward flashes recorded by a high-speed camera at the Säntis Tower during the Summer of 2019. The camera was operating at 10,000 fps and an exposure time of 99 μs. Simultaneous measurements of the lightning curre ...

2021

The laser lightning rod project

Farhad Rachidi-Haeri, Marcos Rubinstein, Jean-Pierre Wolf, Pierre Walch, Mohammad Azadifar, Clemens Herkommer, Amirhossein Mostajabi, Thomas Produit, Antonio Sunjerga

Lightning is highly destructive due to its high power density and unpredictable character. Directing lightning away would allow to protect sensitive sites from its direct and indirect impacts (electromagnetic perturbations). Up to now, lasers have been una ...

2021

Säntis Lightning Research Facility Instrumentation

Farhad Rachidi-Haeri, Marcos Rubinstein, Abraham Rubinstein, Davide Pavanello, Mario Paolone, David Smith, Carlos Alberto Romero Romero, Mohammad Azadifar, Amirhossein Mostajabi, Antonio Sunjerga

The Säntis Tower was instrumented in May 2010 to measure currents of lightning discharges striking the tower. Since then the system has been recurrently updated and expanded. Currently, data associated with lightning strikes to the tower are collected at f ...

2021

Partial discharge localization using time reversal: application to power transformers and gas-insulated substations

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Hamidreza Karami, Amirhossein Mostajabi

A method for locating one or multiple partial discharge sources in a power transformer or a Gas-Insulated Substation, whereby the partial discharges emit electromagnetic and acoustic waves, the method comprising recording a signal corresponding to the wave ...

2021

Localization of Electromagnetic Interference Sources Using a Time-Reversal Cavity

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Hamidreza Karami, Amirhossein Mostajabi

In this article, we propose and implement a novel technique to locate electromagnetic interference (EMI) sources using the concept of time-reversal (TR) cavity. We show in an intuitive manner that reflections from the surfaces of a cavity can emulate an in ...

2021

Mountaintop gamma ray observations of two TGFs at the Santis Tower, Switzerland with coincident radio waveforms characteristic of a RREA current pulse

Farhad Rachidi-Haeri, Amirhossein Mostajabi, Antonio Sunjerga

The electrodynamics of the Terrestrial Gamma Ray Flash (TGF) are not fully understood but the last decade has seen compelling observations in lightning leader (+IC) radio emission that have linked a subset of TGF satellite observations with unique waveform ...

2021

Measurement and Modeling of Both Distant and Close Electric Fields of an M‐Component in Rocket‐Triggered Lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Mi Zhou, Amirhossein Mostajabi, Qi Li

Simultaneous measurements of current and multiple‐station electric fields associated with a 5.4‐kA‐peak M‐component in rocket‐triggered lightning are presented in this study. A close‐range electric field measurement site was located northeast of the trigge ...

2020