Academy of Finland  
Funding decision
Organisation University of Helsinki
Project title Auroral, Energetic and Relativistic particle precipitation: Global Energy input and Local Chemical effects in the High-latitude atmosphere (AERGELC'H)
Applicant / Contact person Grandin, Maxime
Decision No. 338629
Decision date 03.06.2021
Funding period 01.10.2021 - 30.09.2024
Funding 243 090
Project description
The near-Earth space contains charged particles (protons and electrons) of various energies which may enter the atmosphere by following the terrestrial magnetic field lines. This is called particle precipitation, and besides producing the northern light, it may affect human infrastructures, especially at high latitudes. This project will study particle precipitation using a numerical model of the near-Earth environment developed at the University of Helsinki, called Vlasiator. The project will aim at quantifying the energy input into the upper atmosphere associated with particle precipitation during space weather events, and will study the effects of precipitation on the atmospheric chemistry, which could be used to improve climate models. Collaboration is foreseen with the university of Calgary (Canada), Université Grenoble Alpes (France), UNIS (Svalbard/Norway) and University of Otago (New Zealand).