کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4451024 1620570 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characteristics and simulation of lightning current waveforms during one artificially triggered lightning
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علم هواشناسی
پیش نمایش صفحه اول مقاله
Characteristics and simulation of lightning current waveforms during one artificially triggered lightning
چکیده انگلیسی

In the summer of 2005, one negative lightning flash was artificially triggered in Shandong Province (117°48′ E, 37°42′N), middle latitude region of eastern China. The flash included 10 return strokes, and the geometric mean value of the current peak was 11.9 kA (the average value was 12.6 kA) with a maximum of 21.0 kA and a minimum of 6.6 kA, similar to the subsequent return strokes in natural lightning. The geometric mean value of half peak width was 39 μs (the average value was 40 μs), which was much larger than the usual result. Based on the Diendorfer and Uman (DU) model, the return-stroke current waveforms and charge distribution along the lightning channel are discussed. The simulated current waveforms, being divided into breakdown and corona current components, are in agreement with the optical measurements when the two different discharge time constants are properly chosen.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Research - Volume 91, Issues 2–4, February 2009, Pages 387–392
نویسندگان
, , , , , , ,