Lecturer: Peter Dalin (IRF) Date: 2024-12-19 10:00 Place: Aniara
Studies of noctilucent clouds from the stratosphere: the 2024 TRANSAT balloon flight
Peter Dalin
Swedish Institute of Space Physics
Abstract.
Noctilucent clouds (NLC) are the highest clouds in the Earth’s atmosphere forming at 80-90 km altitudes in the summer mesopause. These clouds are composed of tiny ice particles, of a few tens of nm in radius, scattering sunlight. During the period of 22-26 June 2024, IRF successfully launched the NLC imager and infrasound instrument installed on the TRANSAT French balloon. The TRANSAT balloon was flying in the stratosphere at about 40 km, from Esrange across the Atlantic to northern Canada. The NLC imager was operational during the whole balloon flight (3.8 days), taking thousands of NLC images. We discuss technical aspects of the TRANSAT balloon flight as well as first scientific results obtained with the NLC imager.
The seminar is also online. See emails for connection details.
Created 2024-12-02 10:17:16 by Mats Holmström Last changed 2024-12-03 12:58:02 by Mats Holmström
