1. Universidade Federal do Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
2. Laboratory of Geographic Information Systems (LASIG); School of Architecture, Civil and Environmental Engineering (ENAC); Ecole Polytechnique Fédérale de Lausanne (EPFL); Lausanne Switzerland
3. Universidade de Brasília (UnB); Brasilia DF Brazil
4. EMBRAPA; Brasilia Brazil