**Challenges and Solutions for Hydrodynamic and Water Quality in Rivers in the Amazon Basin**

Alan Cavalcanti da Cunha1, Daímio Chaves Brito1, Antonio C. Brasil Junior2, Luis Aramis dos Reis Pinheiro2, Helenilza Ferreira Albuquerque Cunha1, Eldo Santos1 and Alex V. Krusche3 *1Federal University of Amapá - Environmental Science Department and Graduated Program in Ecological Sciences of Tropical Biodiversity 2Universidade de Brasilia. Laboratory of Energy and Environment 3Environmental Analysis and Geoprocessing Laboratory CENA Brazil* 
