25–29 Jul 2022
Europe/Amsterdam timezone

Altitude profile of atmospheric radiation in the Arctic region obtained during a scientific balloon flight with MDU-1 Liulin

26 Jul 2022, 13:38
2m
poster GEO Poster flash talks

Speaker

Nicholas Larsen (Sodankyla Geophysical Observatory)

Description

Measurements of the natural radiation background, specifically in the upper troposphere and low stratosphere, are important in order to compare and eventually inter-calibrate different experimental set-ups, as well as to provide a reliable basis for improving the existing models related to the environmental radiation in the Earth's atmosphere. Here, we report results from a new zero-pressure stratospheric balloon flight in the frame of the HEMERA-2 mission, obtained by measurements performed with a small portable device, (MDU)-1 Liulin. We derived the altitude profile of the atmospheric radiation in the Arctic region, namely in between estrange Kiruna, Sweden and Rovaniemi, Finland. The preliminary analysis shows a good agreement between the measurements and Oulu models for atmospheric ionization and exposure to radiation.

Primary authors

Alexander Mishev (University of Oulu) Nicholas Larsen (Sodankyla Geophysical Observatory) Alexandros Binios (Sodankylä Geophysical Observatory) Ari-Pekka Leppänen (Radiation and Nuclear Safety Authority - STUK) Eija Tanskanen (Sodankylä Geophysical Observatory) Esa Turunen (Sodankylä Geophysical Observatory) Ilya Usoskin (University of Oulu) Jouni Envall (Sodankylä Geophysical Observatory) Pasi Lakkala (Sodankylä Geophysical Observatory) Toivo Iinatti (Sodankylä Geophysical Observatory)

Presentation materials