1. Graduate Program in Geography, Nature and Space Dynamics, State University of Maranhão, Avenida Lourenço Vieira da Silva, Jardim São Cristóvão, São Luís 65055-310, Brazil
2. Department of Geography, State University of Maranhão, Cidade Universitária Paulo VI, São Luís 65055-000, Brazil
3. Department of Civil and Environmental Engineering, Federal University of Pernambuco, Avenida da Arquitetura, s/n, Cidade Universitária, Recife 50740-550, Brazil
4. Center for Higher Studies of São Bento, State University of Maranhão, Rodovia Estadual MA 014, s/n, Bairro Alegre, São Bento 65235-000, Brazil
5. Department of Geography, State University of Campinas, Cidade Universitária Zeferino Vaz, Campinas 13083-855, Brazil