1. Group of Atmospheric Science, Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, Luleå, Sweden
2. Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR), Armilla, Granada, Spain
3. School of Geosciences, University of Aberdeen, Meston Building, King's College, Aberdeen, UK
4. Centro de Astrobiología (CSIC-INTA), Torrejón de Ardoz, Madrid, Spain