Seminars

Lecturer: Peter Dalin (IRF)
Date: 2017-12-14 10:00
Place: Aniara

On the important role of horizontal transport for studies of noctilucent clouds and polar mesospheric summer echoes

The "Mesoclouds" campaign has been conducted between 8 and 30 August 2017 with the aim to investigate polar mesospheric summer echoes (PMSE) and noctilucent clouds (NLC) activity in the common volume of the atmosphere above the Tromsö EISCAT station. Extremely bright and extensive NLC have been observed above northern Scandinavia on the night of 13-14 August 2017. Strong PMSE layers have been simultaneously observed approximately in the same atmospheric volume above Kiruna. The important role of the horizontal transport of air masses at the mesopause versus the PMSE formation due to energetic particle precipitations is discussed.

Created 2017-10-05 08:45:41 by Mats Holmström
Last changed 2017-12-07 13:25:43 by Uwe Raffalski