Spectral Observations of Optical Emissions Associated with Terrestrial Gamma‐Ray Flashes
作者： Matthias Heumesser , Olivier Chanrion , Torsten Neubert , Hugh Christian , Krystallia Dimitriadou
DOI: 10.1029/2020GL090700
关键词:
摘要: The Atmosphere-Space Interactions Monitor measures Terrestrial Gamma-Ray Flashes (TGFs) simultaneously with optical emissions from associated lightning activity. We analyzed measurements at 180-230 nm, 337 nm and 777.4 related to 69 TGFs observed between June 2018 October 2019. All are 90% of them the onset a large pulse, suggesting that they connected initiation current surges. A model photon delay induced by cloud scattering suggests sources pulses 0.7 ms before 4.4 after TGFs, median -10±80 µs, 1-5 km below top. have rise times comparable but longer durations. Pulse amplitudes ∼3 larger than nm. results support leader-streamer mechanism for TGF generation.
essoar.org参考文章(47)
Chuanfeng Zhao, Stephen A. Klein, Shaocheng Xie, Xiaohong Liu, James S. Boyle, Yuying Zhang, Aerosol first indirect effects on non-precipitating low-level liquid cloud properties as simulated by CAM5 at ARM sites Geophysical Research Letters. ,vol. 39, pp. n/a- n/a ,(2012) , 10.1029/2012GL051213
L. W. Thomson, E. P. Krider, The Effects of Clouds on the Light Produced by Lightning Journal of the Atmospheric Sciences. ,vol. 39, pp. 2051- 2065 ,(1982) , 10.1175/1520-0469(1982)039<2051:TEOCOT>2.0.CO;2
Sebastien Celestin, Victor P. Pasko, Compton scattering effects on the duration of terrestrial gamma-ray flashes Geophysical Research Letters. ,vol. 39, ,(2012) , 10.1029/2011GL050342
Thomas Marshall, Maribeth Stolzenburg, Sumedhe Karunarathne, Steve Cummer, Gaopeng Lu, Hans-Dieter Betz, Michael Briggs, Valerie Connaughton, Shaolin Xiong, Initial breakdown pulses in intracloud lightning flashes and their relation to terrestrial gamma ray flashes Journal of Geophysical Research. ,vol. 118, ,(2013) , 10.1002/JGRD.50866
Fanchao Lyu, Steven A. Cummer, Lindsay McTague, Insights into high peak current in-cloud lightning events during thunderstorms Geophysical Research Letters. ,vol. 42, pp. 6836- 6843 ,(2015) , 10.1002/2015GL065047
Caitano L. da Silva, Victor P. Pasko, Dynamics of streamer-to-leader transition at reduced air densities and its implications for propagation of lightning leaders and gigantic jets Journal of Geophysical Research. ,vol. 118, ,(2013) , 10.1002/2013JD020618
Steven A. Cummer, Fanchao Lyu, Michael S. Briggs, Gerard Fitzpatrick, Oliver J. Roberts, Joseph R. Dwyer, Lightning Leader Altitude Progression in Terrestrial Gamma-Ray Flashes† Geophysical Research Letters. ,vol. 42, pp. 7792- 7798 ,(2015) , 10.1002/2015GL065228
Marc Offroy, Thomas Farges, Cheng Ling Kuo, Alfred Bing‐Chih Chen, Rue‐Ron Hsu, Han‐Tzong Su, Yukihiro Takahashi, Stephen B. Mende, Harald U. Frey, Temporal and radiometric statistics on lightning flashes observed from space with the ISUAL spectrophotometer Journal of Geophysical Research. ,vol. 120, pp. 7586- 7598 ,(2015) , 10.1002/2015JD023263
T. E. Light, D. M. Suszcynsky, M. W. Kirkland, A. R. Jacobson, Simulations of lightning optical waveforms as seen through clouds by satellites Journal of Geophysical Research. ,vol. 106, pp. 17103- 17114 ,(2001) , 10.1029/2001JD900051
H. J. Christian, S. J. Goodman, Optical Observations of Lightning from a High-Altitude Airplane Journal of Atmospheric and Oceanic Technology. ,vol. 4, pp. 701- 711 ,(1987) , 10.1175/1520-0426(1987)004<0701:OOOLFA>2.0.CO;2