Latest news

HEPPA-SOLARIS Workshop 2027 at the University of Otago

Annika will lead the preparations for the next HEPPA-SOLARIS Workshop at the University of Otago, Dunedin, New Zealand. The meeting will take place in 2027 from 11th to 15th of January. In addition to Annika, the CHAMOS community is represented in the Scientific Organising Committee by Dan and Pekka. More about the APARC activity here.

CHAMOS Workshop in Helsinki, Finland

The CHAMOS 2025 Workshop was organised by FMI on 3rd - 7th Nov at the Finnish Meteorological Institute, Helsinki, Finland. We once again gathered together for a week of face-to-face collaboration, discussions, and presentations. The topics range from new data sets of solar particle forcing to studies of long-term impacts and atmosphere and climate. Next year the workshop will be held at the Sodankylä Geophysical Observatory. See you there!

ISSI team on auroral precipitation!

Annika, Noora, Yoshi, Antti and Pekka are members of an ISSI team working on auroral precipitation and ozone changes in the middle atmosphere. The first meeting will take place in March 2026 at the International Space Science Institute in Bern, Switzerland.

ISSI team on extreme particle events!

Monika is a member of an ISSI team working on space weather impacts caused by extreme solar particle events. The first meeting will take place between 30th June and 4th July 2025 at the International Space Science Institute in Bern, Switzerland. More information is available here!

Niilo's PhD defence

Niilo defended his PhD thesis "Understanding polar ozone variability through satellite observations and models" on 9th of May at the University of Helsinki. Prof. Dr. Peter Braesicke from the Deutscher Wetterdienst (DWD) acted as the opponent. Congratulations! The thesis is available here!

Jia returns to Finland and joins FMI!

Jia Jia joins the FMI team in Helsinki and starts working in Maxime's LOUARN project. Her job includes research on space weather and atmosphere coupling, analysing atmospheric composition and dynamic variability caused by solar activity. Welcome back!

Joshua Fadiji starts his CHAMOS PhD work!

Joshua Fadiji joins the SGO CHAMOS team! He will work in the CIEPPAR Strategic Spearhead Project focusing on ionospheric and atmospheric impact of energetic particle precipitation. His PhD work is funded by the Kvantum Institute. Welcome Joshua!

Theresa Hoppe starts in the ANEON project!

Theresa joins Maxime's ANAON project and the FMI CHAMOS team. She is working on the response of the atmosphere to forcing from space in the polar region and auroral zone, focusing on neutral temperature in the mesosphere-lower thermosphere region and the interplay of Joule heating and neutral winds. Welcome Theresa!

New study published in Nature Communications

Annika et al. showed that, following EPP into polar atmosphere, initial reduction of polar mesospheric ozone and the resulting change in atmospheric heating rapidly couples to dynamics, transferring the signal downwards, shifting the tropospheric jet poleward. This is another important step forward in understanding the EPP impact on ground-level climate variability. Read the Nature Communications paper here

PhD defence at SGO

Kenneth successfully defended his CHAMOS-related thesis "Polar middle atmospheric ozone: Short term impact by solar protons and long-term trends" at Sodankylä Geophysical Observatory, Polaria lecture room, 22nd of November, 2024, at 12 p.m. Prof. Jörg Gumbel from Stockholm University acted as the opponent. The thesis is available here!

CHAMOS Workshop in Nagoya, Japan

The CHAMOS 2024 Workshop was organised by ISEE on 28th Oct - 1st Nov at Nagoya University, Japan. We once again gathered together for a week of face-to-face collaboration, discussions, and presentations. The topics range from new data sets of solar particle forcing to studies of long-term impacts and atmosphere and climate. Thank you very much for a nice meeting!

ERC Starting Grant for Maxime!

Maxime has received a Starting Grant from the European Research Council for his project LOUARN (Lights in the nightsky and Ozone loss: Unravelling Atmosphere forcing from space with Radar, optics, and Novel citizen science). The project will quantify the effects of space-driven processes on the upper and middle atmosphere in terms of energetics, chemistry, and dynamics, and it will leverage citizen science. LOUARN will start in spring 2025, for a duration of five years. This is great!

CIEPPAR Project funded by Kvantum Institute!

CIEPPAR (Climate Impact of Energetic Particle Precipitation in the Arctic Region) is a Kvantum Institute Strategic Spearhead Project for the period of 2025 - 2028. We will be doing research on the ionospheric and atmospheric impact of energetic particle precipitation and the processes and mechanisms connecting those to atmospheric dynamics and climate. CIEPPAR is led by Pekka and Antti. We will have researcher positions open for your applications very soon! More information here!

Sodankylä-based Balloon campaign to study high-energy EPP impacts!

The third experimental campaign held in Arctic Space Centre in Sodankylä since 2022 is part of a study on geomagnetic storm and solar proton impact on stratospheric chemistry. Experiments were conducted by the FMI, the University of Colorado and the Space Science Institute. See the news at FMI Space

Research Project ANAON funded!

Funded by the Research Council of Finland, ANAON (Aurora and Neutral Atmosphere interplay: Observations and Novel analysis methods) will focus on the mesoscale (tens to hundreds of kilometres) physical processes occurring at subauroral and auroral latitudes in the upper atmosphere. The project starts in October 2024, has a duration of four years, and is led by Maxime. Congratulations!

CHAMOS workshop in Sodankylä, Finland

The CHAMOS 2023 Workshop was organised by SGO on 27th Nov - 1st Dec at Luosto, Sodankylä. After a series of on-line meetings, we had five days of face-to-face collaboration, discussions, and presentations. Among the topics were updates to electron forcing data set for CMIP7, and progress in SUNVAC and HISSA projects. Thank you for a nice meeting!

Research project GERACLIS accepted!

Research Council of Finland funds GERACLIS, a joint project between SGO/University of Oulu and FMI. We aim to understand how the Earth's atmosphere and climate respond to drastic changes in geomagnetic field configuration expected over a thousand year time span. The project runs between 2023 and 2027 and utilises the WACCM and SOCOL models and Finnish HPC resources provided by CSC. See the GERACLIS webpage here

Pekka visits ISEE, Japan!

In February-May, Pekka is working as a visiting professor at the Institute for Space-Earth Environmental Research (ISEE), Nagoya University. Scientifically, we will address the mesospheric ozone variability and its drivers such as EPP forcing on daily to seasonal timescales using ground-based and satellite-base observations together with atmospheric simulations.The visit is hosted by Yoshizumi Miyoshi.

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