Observations of Blue Corona Discharges in Thunderclouds
Abstract Blue electric streamer discharges in the upper reaches of thunderclouds are observed as flashes of 337.0 nm (blue) with faint or no emissions of 777.4 nm (red). Analyzing 3 years of measurements by the Atmosphere‐Space Interactions Monitor on the International Space Station, we find that th...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-06-01
|
| Series: | Geophysical Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2022GL099064 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832591269626380288 |
|---|---|
| author | Lasse Skaaning Husbjerg Torsten Neubert Olivier Chanrion Krystallia Dimitriadou Dongshuai Li Martin Stendel Eigil Kaas Nikolai Østgaard Victor Reglero |
| author_facet | Lasse Skaaning Husbjerg Torsten Neubert Olivier Chanrion Krystallia Dimitriadou Dongshuai Li Martin Stendel Eigil Kaas Nikolai Østgaard Victor Reglero |
| author_sort | Lasse Skaaning Husbjerg |
| collection | DOAJ |
| description | Abstract Blue electric streamer discharges in the upper reaches of thunderclouds are observed as flashes of 337.0 nm (blue) with faint or no emissions of 777.4 nm (red). Analyzing 3 years of measurements by the Atmosphere‐Space Interactions Monitor on the International Space Station, we find that their distribution in rise time falls into two categories. One with fast rise times of 30 μs or less that are relatively unaffected by cloud scattering and emanate from within ∼2 km of the cloud tops, and another with longer rise times from deeper within the clouds. 50% of cells generating shallow events are associated with overshooting tops compared to 34% of cells generating deeper events. The median Convective Available Potential Energy of the cells is ∼70% higher for the shallow events and ∼38% higher for the deeper events than for lightning cells, suggesting the discharges are favored by strongly convective environments. |
| format | Article |
| id | doaj-art-df7ab558a0e746ff810ab80360fcfae9 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-df7ab558a0e746ff810ab80360fcfae92025-01-22T14:38:16ZengWileyGeophysical Research Letters0094-82761944-80072022-06-014912n/an/a10.1029/2022GL099064Observations of Blue Corona Discharges in ThundercloudsLasse Skaaning Husbjerg0Torsten Neubert1Olivier Chanrion2Krystallia Dimitriadou3Dongshuai Li4Martin Stendel5Eigil Kaas6Nikolai Østgaard7Victor Reglero8National Space Institute Technical University of Denmark (DTU Space) Kgs. Lyngby DenmarkNational Space Institute Technical University of Denmark (DTU Space) Kgs. Lyngby DenmarkNational Space Institute Technical University of Denmark (DTU Space) Kgs. Lyngby DenmarkNational Space Institute Technical University of Denmark (DTU Space) Kgs. Lyngby DenmarkNational Space Institute Technical University of Denmark (DTU Space) Kgs. Lyngby DenmarkDanish Meteorological Institute Copenhagen DenmarkDanish Meteorological Institute Copenhagen DenmarkUniversity of Bergen Birkeland Centre for Space Science Bergen NorwayUniversity of Valencia Image Processing Laboratory Valencia SpainAbstract Blue electric streamer discharges in the upper reaches of thunderclouds are observed as flashes of 337.0 nm (blue) with faint or no emissions of 777.4 nm (red). Analyzing 3 years of measurements by the Atmosphere‐Space Interactions Monitor on the International Space Station, we find that their distribution in rise time falls into two categories. One with fast rise times of 30 μs or less that are relatively unaffected by cloud scattering and emanate from within ∼2 km of the cloud tops, and another with longer rise times from deeper within the clouds. 50% of cells generating shallow events are associated with overshooting tops compared to 34% of cells generating deeper events. The median Convective Available Potential Energy of the cells is ∼70% higher for the shallow events and ∼38% higher for the deeper events than for lightning cells, suggesting the discharges are favored by strongly convective environments.https://doi.org/10.1029/2022GL099064atmospheric lightningblue dischargesovershooting topconvection |
| spellingShingle | Lasse Skaaning Husbjerg Torsten Neubert Olivier Chanrion Krystallia Dimitriadou Dongshuai Li Martin Stendel Eigil Kaas Nikolai Østgaard Victor Reglero Observations of Blue Corona Discharges in Thunderclouds Geophysical Research Letters atmospheric lightning blue discharges overshooting top convection |
| title | Observations of Blue Corona Discharges in Thunderclouds |
| title_full | Observations of Blue Corona Discharges in Thunderclouds |
| title_fullStr | Observations of Blue Corona Discharges in Thunderclouds |
| title_full_unstemmed | Observations of Blue Corona Discharges in Thunderclouds |
| title_short | Observations of Blue Corona Discharges in Thunderclouds |
| title_sort | observations of blue corona discharges in thunderclouds |
| topic | atmospheric lightning blue discharges overshooting top convection |
| url | https://doi.org/10.1029/2022GL099064 |
| work_keys_str_mv | AT lasseskaaninghusbjerg observationsofbluecoronadischargesinthunderclouds AT torstenneubert observationsofbluecoronadischargesinthunderclouds AT olivierchanrion observationsofbluecoronadischargesinthunderclouds AT krystalliadimitriadou observationsofbluecoronadischargesinthunderclouds AT dongshuaili observationsofbluecoronadischargesinthunderclouds AT martinstendel observationsofbluecoronadischargesinthunderclouds AT eigilkaas observationsofbluecoronadischargesinthunderclouds AT nikolaiøstgaard observationsofbluecoronadischargesinthunderclouds AT victorreglero observationsofbluecoronadischargesinthunderclouds |