Results 11 to 20 of about 53 (45)

Correcting for Undercounting of Lightning Flashes by Space‐Based Optical Sensors

Journal of Geophysical Research: Atmospheres, Volume 128, Issue 24, 27 December 2023., 2023
Abstract Accurate measurements of global lightning are essential for understanding present and future atmospheric electricity, composition, and climate. The latest space‐based lightning detector, the Geostationary Lightning Mapper (GLM), was the first to be placed in geostationary orbit, with a continuous view of most of the American continents.
P. J. McFarland, W. H. Brune
wiley   +1 more source

Validation of the Geostationary Lightning Mapper With a Lightning Mapping Array in Argentina: Implications for Current and Future Spaceborne Lightning Observations

Earth and Space Science, Volume 10, Issue 10, October 2023., 2023
Abstract A validation study of the Geostationary Lightning Mapper (GLM) on board the Geostationary Operational Environmental Satellite 16 (GOES‐16) was done using a ground‐based lightning mapping array (LMA) deployed as part of the Remote sensing of Electrification, Lightning, And Mesoscale/microscale Processes with Adaptive Ground Observations ...
Timothy J. Lang
wiley   +1 more source

Towards nowcasting in Europe in 2030

Meteorological Applications, Volume 30, Issue 4, July/August 2023., 2023
An example for nowcast/very short‐range forecasting of rainfall using a combined observation and NWP‐based method by Météo‐France is provided, demonstrating the challenge of predicting convective‐scale system evolution in complex terrain (Cevennes region, South of France; panels (a–d) show nowcasts by this method for four timesteps within 3 h, (e–f ...
Stephan Bojinski, Dick Blaauboer, Xavier Calbet, Estelle de Coning, Frans Debie, Thibaut Montmerle, Vesa Nietosvaara, Katie Norman, Luis Bañón Peregrín, Franziska Schmid, Nataša Strelec Mahović, Kathrin Wapler   +11 more
wiley   +1 more source

Day‐To‐Day Quantification of Changes in Global Lightning Activity Based on Schumann Resonances

Journal of Geophysical Research: Atmospheres, Volume 128, Issue 11, 16 June 2023., 2023
Abstract The importance of lightning has long been recognized from the point of view of climate‐related phenomena. However, the detailed investigation of lightning on global scales is currently hindered by the incomplete and spatially uneven detection efficiency of ground‐based global lightning detection networks and by the restricted spatio‐temporal ...
T. Bozóki, G. Sátori, E. Williams, A. Guha, Y. Liu, P. Steinbach, A. Leal, M. Herein, M. Atkinson, C. D. Beggan, E. DiGangi, A. Koloskov, A. Kulak, J. LaPierre, D. K. Milling, J. Mlynarczyk, A. Neska, A. Potapov, T. Raita, R. Rawat, R. Said, A. K. Sinha, Y. Yampolski   +22 more
wiley   +1 more source

A Global LIS/OTD Climatology of Lightning Flash Extent Density

Journal of Geophysical Research: Atmospheres, Volume 126, Issue 8, 27 April 2021., 2021
Abstract Previous lightning climatologies derived from Lightning Imaging Sensor (LIS) and Optical Transient Detector (OTD) total lightning measurements have quantified lightning frequency as a Flash Rate Density (FRD). This approach assumes that lightning flashes can be represented as points and quantifies the frequency of lightning centered in each ...
Michael Peterson, Douglas Mach, Dennis Buechler   +2 more
wiley   +1 more source

Meteorological Satellite Operation Prediction Using a BiLSTM Deep Learning Model

Security and Communication Networks, Volume 2021, Issue 1, 2021., 2021
The current satellite management system mainly relies on manual work. If small faults cannot be found in time, it may cause systematic fault problems and then affect the accuracy of satellite data and the service quality of meteorological satellite. If the operation trend of satellite will be predicted, the fault can be avoided.
Yi Peng, Qi Han, Fei Su, Xingwei He, Xiaohu Feng, Liguo Zhang   +5 more
wiley   +1 more source

Modeling the Transmission of Optical Lightning Signals Through Complex 3‐D Cloud Scenes

Journal of Geophysical Research: Atmospheres, Volume 125, Issue 23, 16 December 2020., 2020
Abstract Space‐based lightning imagers have shown that complex cloud scenes consisting of multiple tall convective features, anvil clouds, and warm boundary cloud layers are illuminated by lightning in many different ways depending on where the lightning occurs and how energetic it is.
Michael Peterson
wiley   +1 more source

Runaway electrons during subnanosecond breakdowns in high‐pressure gases

High Voltage, Volume 1, Issue 4, Page 181-191, December 2016., 2016
The parameters of runaway electrons produced in nanosecond high‐voltage discharges in different gases (air, nitrogen, sulphur hexafluoride, krypton, argon, methane, neon, hydrogen, helium) at atmospheric and higher pressure were studied. An optical analysis was also performed to investigate the ionisation dynamics in diffuse discharges in nitrogen and ...
Victor F. Tarasenko, Mikhail I. Lomaev, Dmitry V. Beloplotov, Dmitry A. Sorokin   +3 more
wiley   +1 more source

Thermal Deformation Correction for the FY-4A LMI

Remote Sensing
Affected by solar radiation in space, the FY-4A Lightning Mapping Imager (LMI) detection array exhibits daily periodic thermal expansion and contraction, leading to deviations in lightning positioning accuracy.
Yuansheng Zhang, Xiushu Qie, Dongjie Cao, Shanfeng Yuan, Dongfang Wang, Hongbo Zhang, Dongxia Liu, Zhuling Sun, Mingyuan Liu, Kexin Zhu, Rubin Jiang, Jing Yang   +11 more
doaj   +1 more source

Ground‐Based Observations of 337 nm and 777 nm Optical Emissions Produced by Lightning

Journal of Geophysical Research: Atmospheres, Volume 129, Issue 10, 28 May 2024.
Abstract Lightning flashes were observed in Barrancabermeja (Colombia) by two photometers centered at 337 and 777 nm wavelengths, a high‐speed camera, and the Colombia Lightning Mapping Array. Both optical and VHF radio emissions of different lightning processes are investigated.
José A. Roncancio, Joan Montanyà, Jesús A. López, Michele Urbani, Oscar A. van der Velde, Marcelo Arcanjo   +5 more
wiley   +1 more source