Results 151 to 160 of about 1,876,300 (167)

Simultaneous detection of lightning flashes by MMIA-ASIM and Colombia Lightning Mapping Array

2020
<p>Since April 2018, the Atmosphere-Space Interactions Monitor (ASIM) has been in operation on board the International Space Station (ISS). ASIM is composed of the Modular X-and Gamma Ray Sensor (MXGS) as well as a multispectral and high resolution array of photometers and cameras, called the Modular Multispectral Imaging Array ...
Jesús Alberto López, Joan Montanyà, Oscar van der Velde, Ferran Fabró, Javier Navarro, Víctor Reglero, Olivier Chanrion, Torsten Neubert, Krystallia Dimitriadou, Nikolai Østgaard   +9 more
openaire   +1 more source

Time Delay Correction for the MARCOS Lightning VHF Mapping Array System

IEEE Transactions on Electromagnetic Compatibility, 2021
In practical applications, system time delay (STD) of a VHF lightning mapping system, resulting from system manufacturing, installation, site differences, and signal channel inconsistency etc., is unavoidable and will affect the localization accuracy of the direction finding algorithm.
Tao Wang, Li-Hua Shi, Shi Qiu, Zheng Sun, Qi Zhang, Yun Li   +5 more
openaire   +1 more source

Efficient Mapping Algorithm for Lightning VHF Radiations Exploiting an Incomplete Planar Array

IEEE Transactions on Geoscience and Remote Sensing
Shangmao Hu, Minchuan Liao
exaly   +3 more sources

3D Mapping of Winter Lightning in Japan with an Array of Discone Antennas

IEEJ Transactions on Electrical and Electronic Engineering, 2022
We have developed a 3D lightning mapping system with an array of Discone Antennas working in the medium frequency‐high frequency (MF‐HF) bands. This system is called discone antenna lightning mapping array (DALMA) and has been deployed in Hokuriku area of Japan for the 3D mapping of winter lightning.
Daohong Wang, Ting Wu, Haitao Huang, Junchen Yang, Kazuo Yamamoto   +4 more
openaire   +1 more source

Continuous broadband lightning VHF mapping array using MUSIC algorithm

Atmospheric Research, 2020
Abstract In order to improve the mapping quality of lightning discharge processes, a mapping approach by applying multiple signal classification (MUSIC) algorithm to direction-of-arrival (DOA) estimation of lightning very high frequency (VHF) radiation sources is proposed (MUSIC-VHF method) and validated.
Tao Wang, Lihua Shi, Shi Qiu, Zheng Sun, Yantao Duan   +4 more
openaire   +1 more source

Two Methods for Correcting Range-Dependent Limitations of Lightning Mapping Arrays

Journal of Atmospheric and Oceanic Technology, 2018
AbstractLightning Mapping Arrays (LMAs) detect very high frequency (VHF) radiation produced by lightning as it propagates; however, VHF source detection efficiency drops off rapidly with range from the centers of the arrays, which results in a maximum of source points over the center of the network for large datasets. Using data from nearly one billion
Stephanie A. Weiss, Donald R. MacGorman, Eric C. Bruning, Vanna C. Chmielewski   +3 more
openaire   +1 more source

High‐Speed Video and Lightning Mapping Array Observations of In‐Cloud Lightning Leaders and an M Component to Ground

Journal of Geophysical Research: Atmospheres, 2019
AbstractHigh‐speed video (46,000 frames per second) and lightning‐mapping‐array (LMA) data are correlated to determine three‐dimensional properties of in‐cloud lightning leaders (altitudes ranging from 2.78 to 3.81 km) observed in a rocket‐and‐wire triggered lightning flash. Three positive leaders were observed with speeds ranging from 6.1 × 104 to 1.0 
D. A. Kotovsky, M. A. Uman, R. A. Wilkes, D. M. Jordan   +3 more
openaire   +1 more source

Lightning ring signatures with the Meteosat Lightning Imager (MTG-LI) compared to the Lightning Mapping Array in northeastern Spain

Launched into geostationary orbit in December 2022, the first Meteosat Third Generation satellite contains the Lightning Imager, which started delivering data operationally since July 4th, 2024, monitoring lightning over Africa, Europe, western parts of the Middle East and eastern South America with a fixed angular resolution pixel size, equivalent to ...
Oscar van der Velde, Tomáš Púčik, Nicolau Pineda, Joan Montanyà, Jesús López, David Romero, Bartolomeo Viticchie, Sven-Erik Enno   +7 more
openaire   +1 more source

TRACER Lightning Mapping Array Field Campaign Report

2023
Marcus van Lier-Walqui, Eric Bruning, Kelcy Brunner, Toshi Matsui, Taka Iguchi   +4 more
openaire   +1 more source

New visualization and analysis tools for 3D Lightning Mapping Array data

The 3D Lightning Mapping Array (LMA) is a regional network of VHF antenna stations spaced 5-50 km apart that detect lightning pulses in the 60-66 MHz band. The pulses are timed by GPS. Time-of-arrival reconstruction results in 3D pulse locations, revealing the lightning leader channels (of negative polarity) inside the cloud and toward ground.
Oscar van der Velde, David Romero, Jesús López, Joan Montanyà, Nicolau Pineda, Ferran Fabró   +5 more
openaire   +1 more source