Abstract:
This work introduces a description of the complex upwelling regime off the Cabo Frio
region in Brazil and shows that ocean modeling, based on the Feature Oriented Re-
gional Model System (FORMS) technique, can produce reliable predictions of sound
speed fields for the corresponding shallow water environment. This work also shows,
through the development of simulations, that the upwelling regime can be responsible
for the creation of shadow coastal zones, in which the detection probability is too low
for an acoustic source to be detected. The development of the FORMS technique
and its validation with real data, for the particular region of coastal upwelling off
Cabo Frio, revealed the possibility of a sustainable and reliable forecast system for
the corresponding (variable in space and time) underwater acoustic environment.