Measurements of Lightning Parameters Using Correlated Video and NLDN Data
Five measurement campaigns were conducted in southern Arizona (AZ), northern Texas and southern Oklahoma (TX-OK), and in the Great Plains (GP) of eastern Colorado, western Kansas and western Nebraska to record lightning using video cameras that were synchronized to GPS time. By comparing the video recordings with reports from the U.S. National Lightning Detection Network TM (NLDN), we have evaluated the performance of the NLDN in the above regions, and we have also documented how the characteristics of confirmed cloud-to-ground (CG) flashes and strokes vary with geographic region. The results show that the estimated peak current (Ip) of negative first strokes, as measured by the NLDN, varied considerably between different recording sessions and that the distributions of Ip and the multiplicity of negative flashes also varied with region. The number and percentage of positive CG flashes was large in the GP and varied considerably between recording sessions. Here, we will summarize the measurements of the NLDN detection efficiency and the parameters of positive and negative CG flashes in the three regions.
E. P. Krider C. J. Biagi K. L. Cummins S. Fleenor K. E. Kehoe
Institute of Atmospheric Physics, University of Arizona, Tucson, AZ 85721-0081, U.S.A Institute of Atmospheric Physics, University of Arizona, Tucson, AZ 85721-0081, U.S.A.;Currently, El Institute of Atmospheric Physics, University of Arizona, Tucson, AZ 85721-0081, U.S.A.;Also, Vaisala Institute of Atmospheric Physics, University of Arizona, Tucson, AZ 85721-0081, U.S.A.;Currently, CI
国际会议
第13届国际大气电学会议(The 13th International Conference on Atmospheric Electricity)
北京
英文
2007-08-13（万方平台首次上网日期，不代表论文的发表时间）