Reactivit'Air

This year was my first time at the General Assembly of the European Geosciences Union (EGU). Even though it felt overwhelming at times, it is also a very stimulating conference including sessions related to important topics beyond scientific topics, such as short courses about various subjects (e.g. peer-review, grants) and more general sessions about scientists' well-being and diversity and equality for instance. The EGU General Assembly (GA) is a week-long conference taking place yearly in Vienna since 2005 (the first GA was in Nice, France, in 2004). It is huge (really!) and brings together over 16'000 scientists (new record this year) from 113 countries representing all fields related to space and Earth Science, such as atmospheric sciences, climate science, oceanography, biogeosciences, cryosphere research, hydrology, seismology, volcanology, planetary science, among many others. As the Atmospheric Sciences division is on of the largest of EGU and as I have be

It is a yearly routine: the temperature slowly increase and there is more light. It is then time to transport our instrumentation to the field! After our measurement campaign in Lapland last year (I wrote about it previously here and here ), this year we are back at the SMEAR II station in Hyytiälä in southern Finland. The SMEAR II station has become a hotspot for atmospheric sciences starting from the mid-1990s. The Finnish Meteorological Institute performs routine measurements there and research is also conducted at the site on Biogenic Volatile Organic Compounds (BVOCs) and other topics related to air quality. We performed an OH reactivity study at this site in 2016 (which is currently under review for Atmospheric Chemistry and Physics, see the open discussion ), which was building on previous studies by Sinha et al. (2010) and Nölscher et al. (2012) . Then, we extended the study period to include the spring and not only summer as the mentioned earlier studies. One result of