Sergey N. Bobylev
Lomonosov Moscow State University
Russian Federation

Olga Yu. Chereshnya
Lomonosov Moscow State University
Russian Federation

Markku Kulmala
University of Helsinki
Finland

Institute for Atmospheric and Earth System Research

Hanna K. Lappalainen
University of Helsinki; Finnish meteorological Institute; Tuymen State University
Finland

Tuukka Petäjä
University of Helsinki; Tuymen State University
Finland

Svetlana V. Solov’eva
Lomonosov Moscow State University
Russian Federation

Vladimir S. Tikunov
Lomonosov Moscow State University
Russian Federation

Vladimir S. Tikunov is Professor, D.Sc. in Geography, Head of the Integrated Mapping Laboratory, MSU Faculty of Geography, and Director of the Center of the World Data System for Geography.

Veli-Pekka Tynkkynen
University of Helsinki
Finland

Aleksanteri Institute, Department of Social Research