1. U.S. Geological Survey; St. Petersburg Florida USA
2. Instituto Universitario de Enfermedades Tropicales y Salud Publica de Canarias; Universidad de La Laguna; San Cristobal de La Laguna Tenerife, Islas Canarias Spain
3. Karlsruhe Institute of Technology; Institute of Meteorology and Climate Research; Gebaude Karlsruhe Germany
4. NASA Ames Research Center; Space Biosciences Research Branch; Moffett Field California USA