Two layers in noctilucent clouds seen from the stratosphere during the 2024 TRANSAT balloon flight

These selected data sample is to demonstrate two layers in noctilucent clouds (NLC) as observed from the stratosphere (at about 37 km altitude) on 25 June 2024 during the TRANSAT balloon flight. Two different NLC layers were moving in opposite directions in the mesopause due to different neutral wind velocities at two different altitudes: at about 83 km and 87 km. The TRANSAT transatlantic balloon was flying in the stratosphere (at 36-40 km altitude) between Esrange (Sweden) and Baffin Island (Canada) during 22-26 June 2024 and was performed by the French Space Agency (CNES).