Investigation of Thundercloud Features in Different Regions. - Andrei Sin'kevich; Bruce Boe; Sunil Pawar; Jing Yang; Ali Abshaev; Yulia Dovgaluk; Julduz Gekkieva; Venkatachalam Gopalakrishnan; Alexander Kurov; Yurii Mikhailovskii; Marina Toropova; Nikolai Veremei (Remote. Sens., 2021)