3D triangulation of Transient Luminous Events over Africa
2023 (Engelska)Ingår i: Advances in Space Research, ISSN 0273-1177, E-ISSN 1879-1948, Vol. 72, nr 3, s. 686-693Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
We present the first 3D triangulation of Transient Luminous Events (TLEs) over Africa. The 6 TLEs were simultaneously observed in the middle atmosphere from Sutherland and Carnarvon in South Africa, separated by 192 km, during the 2019 sprites campaign. These two distinctive locations have low radio interference and are free from light pollution. The lightning times, locations, peak current, and polarities, which initiated the observed TLEs, were obtained from the South African Lightning Detection Network and Earth Networks Total Lightning Networks. We investigate the TLEs' altitude and horizontal displacement from their parent lightning strokes. TLEs appear approximately 12.5 to 49.3 km away from their parent lightning strokes. We found that TLE altitudes range from 29 to 92.6 km. The lightning electric field and peak current may be related to the displacement of TLEs and the TLEs' horizontal spread.
Ort, förlag, år, upplaga, sidor
Elsevier BV , 2023. Vol. 72, nr 3, s. 686-693
Nyckelord [en]
Lightning electric field, Lightning peak current, Transient Luminous Events triangulation, Lightning, Pollution, Power quality, Radio interference, Transients, 3-d triangulations, Light pollution, Lightning strokes, Middle atmosphere, Peak currents, South Africa, Transient luminoi event triangulation, Transient luminous events, Triangulation
Nationell ämneskategori
Meteorologi och atmosfärsvetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-327285DOI: 10.1016/j.asr.2022.08.057ISI: 001053327300001Scopus ID: 2-s2.0-85138467701OAI: oai:DiVA.org:kth-327285DiVA, id: diva2:1758936
Anmärkning
QC 20230524
2023-05-242023-05-242025-02-07Bibliografiskt granskad