The Finnish Meteorological Institute is a leading expert in meteorology, air quality, climate change, earth observation, marine and arctic research areas.
FMI's researchers publish about 300 peer-reviewed articles annually.
In Science News we publish current information about FMI's studies on the weather, the sea and the climate.
New research found differences between measurements and simulations of aerosol plumes originating from biomass burning.
Model-simulated BB aerosol plumes quickly descend to lower levels just off the western coast of the continent, while CALIOP data suggest that smoke plumes continue their horizontal transport at elevated levels above the marine boundary layer.
This is crucial because the sign of simulated aerosol semidirect effect can change depending on whether the bulk of the absorbing aerosols is present within or above the cloud levels in a model. The levels to which the aerosol plumes get subsided and the steepness of their descent vary amongst the models and amongst the different subregions of the domain. Investigations into possible causes of differences between GEOS-5 and CALIOP aerosol transport over the ocean revealed a minimal role of aerosol removal process representation in the model as opposed to model dynamics.
Optically thick smoke aerosol plumes originating from biomass burning (BB) in the southwestern African Savanna during the austral spring are transported westward by the free tropospheric winds to primarily overlie vast stretches of stratocumulus cloud decks in the southeast Atlantic.
FMI has been involved in research project, which evaluated the simulations of long-range transport of BB aerosol by the Goddard Earth Observing System (GEOS-5) and four other global aerosol models over the complete South African-Atlantic region using Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) observations to find any distinguishing or common model biases. Models, in general, captured the vertical distribution of aerosol over land but exhibited some common features after long-range transport of smoke plumes that were distinct from that of CALIOP.
Senior researher Tero Mielonen, tel. +358 50 401 8738, email@example.com
Das, S., H. Harshvardhan, H. Bian, M. Chin, G. Curci, A. P. Protonotariou, T. Mielonen, K. Zhang, H. Wang, and X. Liu (2017), Biomass burning aerosol transport and vertical distribution over the South African-Atlantic region, J. Geophys. Res. Atmos., 122, 6391–6415, doi:10.1002/2016JD026421.
FMI researchers produce some 300 publications annually, the majority of them in international scientific journals. Research results are also published in FMI´ss own publications series. FMI`s own series are:
* FMI Contributions: high-quality peer-reviewed research results, mainly doctoral dissertations
* FMI Reports: current research results mainly for customers and other stakeholders
All publications from 2016 onwards can be found on Helda.