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Newsletter April 2021

The NOSA newsletter is aimed at strengthening the collaboration between its members in the Nordic society. This is facilitated by sharing information about events and conferences, updates on work opportunities and highlighting selected scientific breakthroughs, thereby benefiting NOSA research partners and peers. In this issue, Dr Stephany Mazon gave an interview. She was a co-organiser of the recent Hack-the-Arctic hackathon event. 

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NOSA Updates

Work Opportunities 
Science Highlights 
ECS Corner 
Interview with Stephany Mazon

NOSA Updates

On March 15-17, the annual NOSA symposium took place. With 250 registered participants, this symposium was well-visited. The programme featured two keynote talks by Dr Julia Schamle and Dr Otmar Schmidt, two tutorials by Dr Ralph Kahn and Dr Moa Sporre, 24 talks, and 32 poster presentations.

award was given to Malin Alsved from Lund University. She received the NOSA ECS aerosologist award for her outstanding work on airborne diseases.

keynote talks were given. Dr Julia Schmale started the symposium with a short visit to the Arctic both through long-term measurements and results from the MOSAiC campaign in 2019. Dr Otmar Schmid gave an interesting talk with animations of lung deposition leading to a greater understanding of aerosol health effects.
exhibitors who advertised their instruments and answered questions in WonderMe.

oral presentations which spanned over basic aerosol processes, atmospheric aerosol processes, observations and measurement techniques, and aerosols and health

posters followed by lively discussions in break out rooms, where the authors could present their work in more detail.
registered participants from both Nordic countries and outside.

Find more information about NOSA at the webpage.  
Become a NOSA member



MERGE-BECC annual spring meeting (Climate - land-use interactions), virtual, May 11-12, 2021. Find more.
INAR seminars, on Thursdays at 14:15. For access and more details contact Carlton Xavier or Victoria Sinclair
Oslo Joint Seminar in atmospheric, ocean and climate science. For access and more details contact Bjørg Rognerud.

ICOS Nordic Symposium, November 23-25, 2021, Helsinki, Finland.

Course announcements:
Formation and Growth of Atmospheric Aerosols (9.-20.8.2021, Hyytiälä, Finland). For further information, please contact Jenni Kontkanen.

Atmospheric Observations of Aerosols, Clouds and Trace Gases (3.-10.5.2021). For further information, please contact Katrianne Lehtipalo

First steps in Biosphere-Atmosphere Modelling (16.-27.8.2021). For further information, please contact Pontus Roldin or Michael Boy.


European Aerosol Conference (EAC) 2021, virutal, August 30 - September 3. Find more here
Abstract submission deadline 14 April.

European Geosciences Union (EGU) General Assembly, virtual, April 19-30. Find it here

ETH-Conference on Combustion Generated Nanoparticles, June 21-24, 2021. Find more here

International Global Atmospheric Chemistry (IGAC) Science Conference, virtual, September 2021. Find it here

American Association for Aerosol Research (AAAR) Annual Conference, October 18-22, 2021, Albuquerque, NM, USA. Find more here

International Aerosol Modelling Algorithms Conference 2021, December 8-10, 2021, UC Davis, CA, USA. Find more here

Frontiers in Atmospheric Chemistry Seminar Series, Virtual, 29 January - 16 April 2021. Find more information here.

Virtual INP Colloquium - Ice particle researchers meet virtually once a month, For access and to join the mailing list reach out to either, or Find more here.

Work Opportunities




Norwegian Meteorological Institute
PhD Fellow in Integrated Drift Modelling and Remote Sensing for Coastal Environmental Monitoring. Find it here
Application deadline: 24 March 2021

University of Bergen
PhD position in Climate Dynamics. Find it here
Application deadline: 1 April 2021

Lund University
Researcher in Clouds, Climate and AI. Find it here.
Application deadline: 30 March 2021

Doctoral student in paleoclimate and climate modelling. Find it here
Application deadline: 9 April 2021

University of Gothenburg 
PhD in Natural Science with specialization in Chemistry. Find it here
Application deadline: 16 April 2021

Stockholm University
Postdoctoral Fellow focusing on Isotope Studies of Aerosols and Gases over South Asia. Find it here
Application deadline: 9 April 2021

University of Copenhagen
PhD in Exolife Science. Find it here.
Application deadline: 15 April 2021

University of Helsinki 
Postdoctoral researcher, micrometeorology and biochemical cycle. Find it here
Application deadline: 31 March 2021

University of Oulu
2 PhD positions in Atmospheric Research. Find it here
Application deadline: 9 May 2021

4 Post Doctoral researchers in Atmospheric Research. Find it here
Application deadline: 9 May 2021

For up-to-date positions, follow @AtmChemAeroJobs on Twitter

Science Highlights 


Changes in black carbon emissions over Europe due to COVID-19 lockdowns

Evangeliou et al. (2021).
Following the transmission of SARS-CoV-2 to Europe, social distancing rules were introduced to prevent further spread. Evangeliou et al. investigate the impacts of the European lockdowns on black carbon (BC) emissions by means of in situ observations and inverse modelling. BC emissions declined by 23 kt in Europe during the lockdowns as compared with previous years and by 11 % as compared to the period prior to lockdowns. Residential combustion prevailed in Eastern Europe, as confirmed by remote sensing data. Find the full paper here.

The Global Impacts of COVID-19 lockdowns on Urban Air Pollution: A critical review and recommendations 
Gkatzelis et al. (2021)

The COVID-19 pandemic led to less air pollution from traffic due to stay-at-home orders from governments to reduce the spread of the disease. In the first 7 months of the pandemic, more than 200 papers using both ground-based and satellite observations of air pollutants were accepted by peer-reviewed journals. This review focuses on how this type of data should be used and what to account for e.g. meteorology. Find the full paper here

ECS Corner

Congratulations Malin! 

Malin Alsved was awarded the NOSA ECS aerosologist award for her PhD work. She has done remarkable work on airborne diseases with a high output of first-author papers. 

She is specialised in investigating hospital environments and how airborne diseases spread through hospitals. She has worked with airborne winter vomiting diseases, influenza, and more recently with the spread of SARS-CoV-2 (COVID-19). She continues her work on airborne diseases as a postdoctoral researcher at Lund University. 

Interview with Stephany Mazon

By Janne Lampilahti

 A hackathon (hacking marathon) is usually a weekend-long event where the participants team up to create projects centered around a specific theme. The goal is to create working software or hardware by the end of the event and the best projects get awarded.

A hackathon event called Hack-the-Arctic was held online on March 12-14, 2021. The event had 130 participants from over 30 countries and 27 final projects were submitted. Dr. Stephany Mazon was a co-organizer of the event and I had the pleasure to ask her some questions.

Why do you want to hack the Arctic?

The Arctic is rapidly changing. Many people are living in the Arctic and various activities like shipping, mining and tourism are on the rise. Seven nations have territories in the Arctic, which brings an opportunity for people to work together.

How does one organize a hackathon?

Stephany posted on Instagram that she would like to do a hackathon. At this point it was just an idea. She was contacted by Magdalena Brus from ICOS (Integrated Carbon Observation System) who also wanted to organize a similar event, and that they would be interested in joining forces. Things started to move along. Junction, a Finnish company that organizes events like hackathons, was asked to take care of the technical aspects and setting up the online platform. In a positive surprise some days before the event the Arctic Data Center from the US and the Arctic Spatial Data Infrastructure, which operates in different Arctic nations, also wanted to join the event.

Stephany summarizes the key ingredients needed to organize the hackathon: (1) easy access to data, (2) somebody who is able to take care of the technical side, and (3) a list of challenges that can be tackled.

Did the participants need to prepare somehow for the event?

Anybody could join and at the hackathon there were beginners and experts. There was no need to prepare anything before the event.

Does a hackathon work online also?

Nowadays there are many great online platforms available. An online event allows people to participate from all over the world. These are people that may not otherwise be able to join. In a virtual setting the barrier to interact with others can be higher, which is a disadvantage compared to traditional hackathons where people gather and spend the time in one place.

Pizza and energy drinks are the hackathon staples. What is your favorite hackathon food and drink?
Stephany prefers coffee. During the hackathon people could send a picture of their work area and according to the pictures received coffee and chips were the favorites.

What were the winning projects? Did something surprise or impress you?

1st place: The winning project developed a platform for policy makers to manage fisheries. 

2nd place: The second place went to a project that visualized some of the available data from the Arctic on a map.

3rd place: The third place went to a project that showed the location of oil rigs and could help manage oil spills.

Stephany also mentions that of the participants 46% were male and 35% female (the rest did not want to say). According to the people from Junction, this level of balance is quite rare in hackathons.

Do the participants keep working on their ideas after the event?

The winners continue to develop their idea and plan to apply for funding.

What would you like to hack next?

The hackathon showed that anyone can create a useful service or application out of the data. Stephany believes that it is important to find ways to make the existing data easily accessible and interesting to various users. The main target to hack would be to address a more balanced representation of data and science from all parts of the world. It is still too western-centric.

If you have content you wish to have featured in the NOSA Newsletter, please send
 an e-mail to or contact the editor of this issue. 

Janne Lampilahti
Copyright © 2021 Nordic Society for Aerosol Research, All rights reserved.


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