Fig. 2From: Synoptic meteorological conditions of gamma-ray glows in winter thunderstormsMeteorological charts of the glow-detection Case 11. a An expanded view of JMA surface analysis (ASAS). b An expanded view of JMA 500 hPa analysis (AUPQ35). c Brightness-temperature heat map taken by Himawari-8 Advanced Himawari Imager IR1 (band 13). d Daily lightning map based on the LIDEN observationBack to article page