A simultaneous observation of lightning by ASIM, Colombia-Lightning Mapping Array, GLM, and ISS-LIS

The Atmosphere-Space Interactions Monitor (ASIM) on the International Space Station (ISS) provides optical radiances and images of lightning flashes in several spectral bands. This work presents a lightning flash simultaneously observed from space by ASIM, the Geostationary Lightning Mapper (GLM) an...

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Detalhes bibliográficos
Autores: Montañá Puig, Juan|||0000-0003-2488-697X, López Trujillo, Jesús Alberto|||0000-0002-8802-4271, Morales Rodríguez, Carlos Augusto, Van der Velde, Oscar Arnoud|||0000-0002-1638-6628, Fabró Tàpia, Ferran|||0000-0002-5448-3357, Pineda, Nicolau, Navarro González, Javier, Reglero, Víctor, Neubert, Torsten, Chanrion, Olivier, Goodman, Steven J., Østgaard, Nikolai, Ladino Rincón, Alfonso, Romero Durán, David|||0000-0002-5571-9069, Solà de las Fuentes, Glòria|||0000-0002-0665-6225, Horta Bernús, Ricard|||0000-0003-3536-4595, Freijo Álvarez, Modesto|||0000-0003-0538-8377
Formato: artículo
Fecha de publicación:2021
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/355834
Acesso em linha:https://hdl.handle.net/2117/355834
https://dx.doi.org/10.1029/2020JD033735
Access Level:acceso abierto
Palavra-chave:Lightning
Radar meteorology
Atmosphere-space interactions monitor
Geostationary lightning mapper lightning
Lightning mapping array thunderstorm
Llamps
Tempestes
Radarmeteorologia
Àrees temàtiques de la UPC::Enginyeria elèctrica
Descrição
Resumo:The Atmosphere-Space Interactions Monitor (ASIM) on the International Space Station (ISS) provides optical radiances and images of lightning flashes in several spectral bands. This work presents a lightning flash simultaneously observed from space by ASIM, the Geostationary Lightning Mapper (GLM) and the Lightning Imaging Sensor on the International Space Station (ISS-LIS); and from ground by the Colombia-Lightning Mapping Array (Colombia-LMA). Volumetric weather radar provides reflectivity data to help to interpret the effects of the cloud particles on the observed optical features. We found that surges in radiance in the band at 777.4 nm appear to be related mostly with lightning processes involving currents as well with branching of lightning leaders with new leader development. In cloud areas with reflectivity <18 dBZ above the lightning leader channels at altitudes >7 km, these have been imaged by ASIM and GLM. But in the region with reflectivity <23 dBZ above the lightning leader channels, despite its lower cloud tops and similar altitudes of lightning channels, these have been almost undetectable. The calculated relative optical depths are consistent with the observed optical intensity at the cloud top. Despite the effects of the cloud particles and the altitude of the lightning channels on the attenuation of the luminosity, the luminosity of the lightning channels due to different processes is fundamental for the imaging of lightning from space.

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