Some Remarks on the Relation of Thunderbolts with Radar Echoes of Thunderclouds

Identification of thunderclouds from weather radar echoes

“…In thi s p per, we pr s nt results of r adar echoes observed on s ummer thunderclouds , and th empirical results for identif ying thund r c l ouds from o th r kind s f clouds are also given aft r compa ring the r ada r echoes with the map of he striking poin t s of lightning flashes _ After perf o rming s tatistical na lysis on th r 1 tion hip s betw n striking po ints of lightning and co rr spondi ng rada r echoes , we concluded that the ligh tnin g discharges occur almos t in the co ntour a r ea of EL3 (co rr sponding to 16 mm/hr rainfall intensi t y level) . However, w 66 a l so obtained some results th at indicated lightning discharges apparentl y start outsid e of the thundercloud (6). Therefore , t o c l arify the rel a tionship be tween th e lightning di sc ha r ges a nd the area of EL3 in mor e detail, we hav 10 ated s trikin g points of lightning discharges to the ground by usi ng two cameras a t different si tes, i.e .…”