0000000000805157

AUTHOR

O. Van Der Velde

showing 2 related works from this author

Lightning-ignited wildfires and long continuing current lightning in the Mediterranean Basin: preferential meteorological conditions

2021

Lightning is the major cause of the natural ignition of wildfires worldwide and produces the largest wildfires in some regions. Lightning strokes produce about 5 % of forest fires in the Mediterranean Basin and are one of the most important precursors of the largest forest fires during the summer. Lightning-ignited wildfires produce significant emissions of aerosols, black carbon, and trace gases, such as CO, SO2, CH4, and O3, affecting air quality. Characterization of the meteorological and cloud conditions of lightning-ignited wildfires in the Mediterranean Basin can serve to improve fire forecasting models and to upgrade the implementation of fire emissions in atmospheric models. This st…

ChemistryPhysicsQC1-999QD1-999Atmospheric Chemistry and Physics
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High-speed intensified video recordings of sprites and elves over the western Mediterranean Sea during winter thunderstorms

2010

We report the first intensified high‐speed video images of elves, sprites, and halos observed in Europe. All the events corresponded to winter season thunderstorms over the Mediterranean Sea. The observations comprise many elves generated by both cloud‐to‐ground lightning current polarities. In 8 of the 14 sprite observations we observed an elve previous to the sprite. In three cases we observed also an elve quickly followed by a halo and a sprite. In several observations we observed lightning light before the mesospheric transient luminous event. We present a case where the lightning from cloud tops was visible during the entire event. Thanks to the high‐speed videos and their resolution a…

Atmospheric Science010504 meteorology & atmospheric sciencesMeteorology0207 environmental engineeringSoil Science02 engineering and technologyAquatic ScienceOceanography01 natural sciencesMediterranean seaSprite (lightning)Geochemistry and PetrologyEarth and Planetary Sciences (miscellaneous)Thundersnow020701 environmental engineering0105 earth and related environmental sciencesEarth-Surface ProcessesWater Science and TechnologyEcologyCloud topPaleontologyForestryVideo imageGeophysics13. Climate actionSpace and Planetary ScienceThunderstormLight emissionAtmospheric electricityGeologyJournal of Geophysical Research: Space Physics
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