Determining the size of lightning induced electron precipitation patches

• Main Authors: Clilverd, MA, Nunn, D, Lev-Tov, SJ, Inan, US, Dowden, RL, Rodger, CJ, Smith, AJ
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2002
• Subjects: Antarctic; Antarctic Peninsula; The Antarctic; Trimpi; Antarc*
• Online Access: https://eprints.soton.ac.uk/259004/; https://eprints.soton.ac.uk/259004/1/jgr_02_lepsize.pdf

VLF trimpi signatures are analysed at 4 sites in the Antarctic Peninsula, looking at VLF transmissions from 4 US VLF transmitters, namely NAA,NSS,NPM and NLK. The Trimpi effect is numerically modelled on all of these paths, concentrating particularly on actual events observed on many paths simultaneously. Very good agreement with observation is secured. By careful analysis of the results it is concluded that the physical size of precipitation patches is greater than previously thought, typically some 800km wide and 2000km long.