Summary
Concpetual models developed to simulate runoff from rainfall, based on numerical technics and optimization processes, make it possible to identify the main factors that regulate rainfall-runoff relationship in a watershed.
It was adapted a model consisting of a cascade of equal reservoirs in serie to describe the watershed unit hydrograph. The parameters optimization that characterizes the model was done by the Newton-Raphson Method.
Al the hydrological informations was collected in the Representative Watershed of Tarumã-Açu River, Km 60 of Manaus — Caracaraí Road and corresponds to the period of Sept-1979 to Sept-1980.