Vibrational kinetics of air plasmas induced by sprites

American Geophysical Union (AGU) - Tập 115 Số A5 - 2010
Francisco J. Gordillo‐Vázquez1
1Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain

Tóm tắt

The vibrational kinetics of air plasmas produced by the presence of sprites in the mesosphere of the Earth is studied in detail. The present model solves the coupled electron Boltzmann equation and rate equations for electrons, neutrals (ground and excited), and ions. Special attention is paid to the vibrational kinetics of N2 (X1Σg+) and to that of the N2 triplet states (A3Σu+, B3Πg, C3Πu, W3Δu, and B′3Σu+). The results presented are for an altitude of 78 km over sea level where the model‐predicted vibrational distribution function (VDF) of N2 (B3Πg) is in agreement with available VDF derived from sprite spectra (640–820 nm) obtained using spectrographs coupled to high‐speed video cameras (300 frames per second (fps)). In addition, the model predictions indicate that the sprite plasma VDFs of N2 (B3Πg) and N2 (C3Πu) are almost in thermal equilibrium and exhibit a maximum at v = 0 followed by lower values for v = 1 and v = 2. Finally, it is also predicted that the N2 (B3Πg) and N2 (C3Πu) VDFs recorded with very high speed video cameras (up to 10000 fps) should not differ much from the N2 (B3Πg) and N2 (C3Πu) VDFs obtained with cameras working at lower speeds (30 and 300 fps).

Từ khóa


Tài liệu tham khảo

10.1088/0022‐3727/41/23/234010

10.1016/0301‐0104(79)85207‐6

10.1063/1.1679950

10.1088/0963‐0252/16/3/026

10.1016/S1364‐6826(02)00316‐4

10.1063/1.1675787

10.1063/1.1674973

10.1007/978-3-662-04158-1

10.1029/JA083iA02p00517

10.1103/PhysRevA.16.1041

Collins W. D. et al. (2004) Description of the NCAR Community Atmospheric Model (CAM3) Tech. Rep. NCAR/TN‐464 STR Natl. Cent. for Atmos. Res Boulder Colo.

Gear C. W., 1971, Numerical Initial Value Problems in Ordinary Differential Equations

10.1063/1.555910

10.1088/0963‐0252/2/3/005

10.1109/27.467998

10.1088/0022‐3727/41/23/234016

10.1029/96GL02071

Guerra V.(1998) Estudio cinético de descargas luminescentes em gases moleculares: Applicação à mistura N2‐O2 PhD. thesis Univ. Técnica de Lisboa Lisbon.

10.1029/95GL03587

10.1029/GM123p0069

10.1029/2008JD011196

10.1029/2006GL028608

10.1029/2005GL023389

10.1021/jp071657a

10.1029/2003JA010064

10.1029/2005GL024243

10.1029/2006GL027854

10.1029/95GL02827

10.1007/s11214‐008‐9346‐z

10.1063/1.1840527

10.1029/95JA02835

10.1016/S1364‐6826(98)00031‐5

10.1029/2001GL014018

10.1088/0963‐0252/18/2/025005

10.1063/1.454388

10.1063/1.454649

10.1063/1.457138

10.1029/2007JD008941

10.1088/0022‐3727/35/16/311

10.1088/0022‐3727/41/23/234009

10.1029/2007GL029881

Thông tin
Thông tin xuất bản

American Geophysical Union (AGU)

Tập 115 Số A5

Thông tin tác giả