1. Department of Geography; College of Life and Environmental Sciences; University of Exeter; Exeter EX4 4RJ UK
2. Remote Sensing Division; National Institute for Space Research; Av. dos Astronautas 1758, São Jose dos Campos Sao Paulo 12227-010 Brazil
3. Carbon Decisions International; Residencial la Castilla, de la primera entrada; 6ta casa a mano derecha Paraíso de Cartago Costa Rica