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Mohammad Azadifar

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Publications associées (80)

Simultaneous Records of Current and 380-km Distant Electric Field of a Bipolar Lightning Flash

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar, Amirhossein Mostajabi, Wolfgang Schulz

2017

A Semi-Analytical Simplified Approach to Compute Lightning Radiated Electric Fields at Long Distances Taking into Account Ionospheric Reflection

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Dongshuai Li

2017

Analysis of lightning-ionosphere interaction using simultaneous records of source current and 380 km distant electric field

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar, Dongshuai Li, Wolfgang Schulz

We present simultaneous current and wideband electric field waveforms at 380 km associated with upward lightning flashes initiated from the Santis Tower, Switzerland. To the best of our knowledge, the dataset presented in this study includes the first simu ...

Elsevier2017

Simultaneous Currents and Electric Fields at Two Distances Associated with an Upward Flash to the Säntis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Wolfgang Schulz

2017

A Study of Upward Flashes Initiated at the Säntis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii, Roy Daher, Mohammad Azadifar

2017

On Lightning Electromagnetic Field Propagation Along an Irregular Terrain

Farhad Rachidi-Haeri, Marcos Rubinstein, Stefan Metz, Davide Pavanello, Mario Paolone, Mohammad Azadifar, Dongshuai Li, Zhaoyang Wang, Qilin Zhang

In this paper, we present a theoretical analysis of the propagation effects of lightning electromagnetic fields over a mountainous terrain. The analysis is supported by experimental observations consisting of simultaneous records of lightning currents and ...

Institute of Electrical and Electronics Engineers2016

An Update on the Measurements of Lightning Currents and Electromagnetic Fields Associated with Flashes to the Säntis Tower in Switzerland

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar, Dongshuai Li

2016

Fast Initial Continuous Current Pulses vs Return Stroke Pulses in Tower-initiated Lightning

Farhad Rachidi-Haeri, Marcos Rubinstein, Stefan Metz, Davide Pavanello, Mario Paolone, Mohammad Azadifar

We present a study focused on pulses superimposed on the initial continuous current of upward negative discharges. The study is based on experimental data consisting of correlated lightning current waveforms recorded at the instrumented Santis Tower in Swi ...

Amer Geophysical Union2016

Evaluation of the performance characteristics of the European Lightning Detection Network EUCLID in the Alps region for upward negative flashes using direct measurements at the instrumented Säntis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Carlos Alberto Romero Romero, Mohammad Azadifar, Wolfgang Schulz

In this paper, we present a performance analysis of the European Cooperation for Lightning Detection (EUCLID) lightning detection network using data obtained on lightning currents measured at the Santis Tower (located in northeastern of Switzerland) from J ...

Amer Geophysical Union2016

Occurrence of Downward and Upward Flashes at the Säntis Tower: Relationship with -10 degrees C Temperature Altitude

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Martina Lagasio

2016

Analysis of lightning electromagnetic field propagation in mountainous terrain and its effects on ToA-based lightning location systems

Farhad Rachidi-Haeri, Marcos Rubinstein, Keyhan Sheshyekani, Mohammad Azadifar, Dongshuai Li, Zhaoyang Wang, Qilin Zhang

In this paper, we analyze the propagation effects on lightning-radiated electromagnetic fields over mountainous terrain by using a three-dimensional (3-D) finite difference time domain (FDTD) method. We also discuss the time delay error in the time-of-arri ...

Amer Geophysical Union2016

Bipolar Lightning Flashes Observed at the Säntis Tower: Do We Need to Modify the Traditional Classification?

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar

We present and discuss current waveforms associated with 13 bipolar lightning flashes recorded at the Santis Tower during the period from June 2010 to January 2015. During this period, a total of 427 flashes were recorded, of which 13 (3%) were classified ...

American Geophysical Union2016

Bipolar Lightning Flashes Observed at the Säntis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar

2016

Simultaneous Current and Distant Electric Field Waveforms from Upward Lightning: Effect of Ionospheric Reflection

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar, Dongshuai Li

2016

Lightning Location Systems and Interstroke Intervals: Effects of Imperfect Detection Efficiency

Farhad Rachidi-Haeri, Marcos Rubinstein, Mirjana Stojilovic, Mohammad Azadifar

Lightning location systems (LLSs) are often used to obtain parameters of lightning flashes. However, the imperfect detection efficiency (DE) of these systems affects the accuracy of the results. In this paper, we focus on the effects of the imperfect DE on ...

Ieee2016

An Update on Experimental Data Obtained at the Santis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar

The Santis Tower was instrumented in May 2010 and, to this date, more than 400 flashes were successfully recorded. Lightning current waveforms and their time-derivatives are measured at two different heights along the tower (24-m and 82-m AGL). In this pap ...

IEEE2015

Characteristics of Electric Fields of Upward Negative Stepped Leaders

Farhad Rachidi-Haeri, Marcos Rubinstein, Stefan Metz, Davide Pavanello, Mario Paolone, Carlos Alberto Romero Romero, Mohammad Azadifar

2015

An Update on the Charaterictics of Positive Flashes Recorded on the Säntis Tower

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Carlos Alberto Romero Romero, Mohammad Azadifar

2014

An Update on the Instrumentation of the Säntis Tower in Switzerland for Lightning Current Measurements and Obtained Results

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Carlos Alberto Romero Romero, Mohammad Azadifar

2014

On the Influence of Measuring Instruments Bandwidth Limitations on the Inferred Statistical Parameters for Lightning Currents

Farhad Rachidi-Haeri, Marcos Rubinstein, Davide Pavanello, Mario Paolone, Mohammad Azadifar

2014

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