Javier Herrera
National University of Colombia
22 Papers
73 Citations
Javier Herrera is an academic researcher from National University of Colombia. The author has contributed to research in topics: Lightning & Thunderstorm. The author has an hindex of 7, co-authored 20 publications.
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Papers
Contribution to Lightning Parameters Study Based on Some American Tropical Regions Observations
TL;DR: The most significant conclusion is that historical data suggest that the highest ground flash density are located between latitude of 8° and 10° north, which is much higher than the highest values reported for countries located in temperate regions.
35
Electromagnetic Field Due to Lightning Striking on Top of a Cone-Shaped Mountain Using the FDTD
TL;DR: In this paper, the authors presented the calculation of electric and magnetic fields produced by lightning striking over different configurations of nonflat lossy ground using finite-difference time domain (FDTD) methods in two-dimensional (2-D) with cylindrical coordinate systems and 3-D with Cartesian coordinates.
34
Thunderstorm warning alarms methodology using electric field mills and lightning location networks in mountainous regions
Jesús López,Ernesto Perez,Javier Herrera,Daniel Aranguren,L. Porras +4 more
- 12 Nov 2012
TL;DR: In this article, a methodology for thunderstorm warning alarming using electric field measurements and lightning location data under mountainous conditions in Medellin - Colombia is presented, which is used to set warning criteria for preventing human and sensitive systems risks and damages.
25
Lightning risk assessment using fuzzy logic
L. Gallego,Oscar Duarte,Horacio Torres,Mauricio Vargas,Johny Montaña,Ernesto Perez,Javier Herrera,Camilo Younes +7 more
TL;DR: In this paper, a risk assessment methodology using fuzzy logic is proposed to quantify and qualify uncertainties related to lightning strike probability, presence of a damage channel (type of coupling) or presence of the victim (equipment, human beings, structure itself, etc.).
22
Sensitivity analysis of induced voltages on distribution lines
Ernesto Perez,Javier Herrera,Horacio Torres +2 more
- 23 Jun 2003
TL;DR: In this article, a sensitivity analysis of induced voltages on overhead distribution lines due to some lightning and line configuration parameters variations was performed by means of nonlinear regression models, and an approximate equation was also obtained to calculate the maximum induced voltage along the line.
11