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Aleksandr Smorgonskii

Cette personne a quitté l’EPFL

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Publications associées (25)

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A model for the evaluation of the electric field associated with the lightning-triggering rocket wire and its corona

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii

In this paper, we analyze the electric field at ground level during the first stage of triggered lightning experiments, i.e., during the rocket ascent and prior to the lightning initiation. At distances of some tens of meters from the triggering wire, the ...

Amer Geophysical Union2015

An Analysis of Lightning Activity in the Säntis Region through the Big Hiatus in Global Warming

Farhad Rachidi-Haeri, Marcos Rubinstein, Mohammad Azadifar, Amirhossein Mostajabi, Aleksandr Smorgonskii

The response of local lightning to local surface temperature is examined near the Säntis mountain (2502 m ASL) in the eastern Swiss Alps during the first of the two hiatuses in global warming covering the time periods 1940-1972 and 1998-2014. The mountain ...

2018

Advanced methods for the evaluation of lightning incidence over large areas, wind turbine parks and tall towers

Aleksandr Smorgonskii

Lightning presents a significant danger to electrical and electronic equipment, buildings and monuments, people and animals. Although our knowledge about lightning has significantly improved over last century, the development of new composite materials and ...

EPFL2016

Correlation vs. Causality in Other-Triggered Upward Lightning in Tower Flashes

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii

Upward lightning flashes from towers are sometimes preceded by other lightning activity in the vicinity of the tower. This observation has led to a classification of upward tower lightning into self-initiated, which are not preceded by nearby lightning act ...

Ieee2016

On the adequacy of standardized lightning current waveform for composite structures for aircraft and wind turbine blades

Farhad Rachidi-Haeri, Marcos Rubinstein, Anastasios Vassilopoulos, Aleksandr Smorgonskii

The standard lightning waveforms used for the testing of aircraft are based on downward lightning. However, there is evidence suggesting that lightning to aircraft is different from negative downward lightning. Also, carbon fiber composite materials are be ...

Ieee2016

A Study of Electrical Current Distribution in Anisotropic Materials with Special Reference to Lightning Interaction with Composite Materials

Farhad Rachidi-Haeri, Marcos Rubinstein, Anastasios Vassilopoulos, Aleksandr Smorgonskii, Xi Chen

2017

Are Standardized Lightning Current Waveforms Suitable for Aircraft and Wind Turbine Blades Made of Composite Materials?

Farhad Rachidi-Haeri, Marcos Rubinstein, Anastasios Vassilopoulos, Aleksandr Smorgonskii

The use of sensitive electronics in avionics and wind generation systems, as well as the introduction of lower-conductivity composite materials make it important to ensure adequate lightning testing of airplanes and wind turbines. Evidence exists suggestin ...

Institute of Electrical and Electronics Engineers2017

On the proportion of upward flashes to lightning research towers

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii

We compare in this paper direct measurements obtained at the Towers on Mount San Salvatore (Switzerland) and the Gaisberg Tower (Austria). They are situated in similar topographical environments but in different lightning activity zones. Direct measurement ...

IEEE2011

Extreme Values of Lightning Parameters

Marcos Rubinstein, Aleksandr Smorgonskii

In this paper we present an online database where we have collected a number of reports on extreme lightning parameters: peak current, fastest and slowest rise time, fastest and slowest time to half value, rate of change of current, flash duration, charge ...

2018

An analysis of the initiation of upward flashes from tall towers with particular reference to Gaisberg and Säntis Towers

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii

In this paper, we present an analysis of the lightning events preceding initiation of upward lightning flashes from the Gaisberg and the Santis Towers. It is found that the majority of upward lightning discharges from both towers are initiated without any ...

Pergamon-Elsevier Science Ltd2015

Implementation and Performance Analysis of the Lightning Potential Index as a Forecasting Tool

Farhad Rachidi-Haeri, Aleksandr Smorgonskii

Severe weather events are responsible for hundreds of fatalities and millions of euros of damage every year in the Mediterranean basin. Lightning activity is a characteristic phenomenon of severe weather and often accompanies torrential rainfall, which und ...

Ieee2016

On the Relation between Lightning Flash Density and Terrain Elevation

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii

2013

On the Measurement of the Grounding Impedance of Tall Wind Turbines

Farhad Rachidi-Haeri, Marcos Rubinstein, Nicolas Mora Parra, Aleksandr Smorgonskii

2017

On the proportion of upward flashes to lightning research towers

Farhad Rachidi-Haeri, Marcos Rubinstein, Aleksandr Smorgonskii

We compare in this paper direct measurements obtained on the towers on San Salvatore Mountain (Switzerland) and on the Gaisberg Mountain (Austria). They are situated in similar topographical environments but in different lightning activity zones. Direct me ...

Elsevier2013

Aleksandr Smorgonskii

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A model for the evaluation of the electric field associated with the lightning-triggering rocket wire and its corona

An Analysis of Lightning Activity in the Säntis Region through the Big Hiatus in Global Warming

Advanced methods for the evaluation of lightning incidence over large areas, wind turbine parks and tall towers

Correlation vs. Causality in Other-Triggered Upward Lightning in Tower Flashes

On the adequacy of standardized lightning current waveform for composite structures for aircraft and wind turbine blades

A Study of Electrical Current Distribution in Anisotropic Materials with Special Reference to Lightning Interaction with Composite Materials

Are Standardized Lightning Current Waveforms Suitable for Aircraft and Wind Turbine Blades Made of Composite Materials?

On the proportion of upward flashes to lightning research towers

Extreme Values of Lightning Parameters

An analysis of the initiation of upward flashes from tall towers with particular reference to Gaisberg and Säntis Towers

Implementation and Performance Analysis of the Lightning Potential Index as a Forecasting Tool

On the Relation between Lightning Flash Density and Terrain Elevation

On the Measurement of the Grounding Impedance of Tall Wind Turbines

On the proportion of upward flashes to lightning research towers

Analysis of Lightning Events Preceding Upward Flashes from Gaisberg and Säntis Towers

Experimental Characterization of the Grounding Impedance of Wind Turbines

A New Method for the Estimation of the Number of Upward Flashes from Tall Structures

Lightning Incidence Analysis with Special Attention to Wind Turbines

On the Classification of Tower Flashes as Self-Initiated and Other-Triggered

On the Influence of Topography on Lightning Incidence in the Region of Pic du Midi