Desenvolvimento de um sistema de monitoramento gradiente térmico costeiro

Abstract

This work presents the development of a prototype of thermal gradient measurements using a thermometer chain for continuous and real-time monitoring of the water column in a coastal region. The chain of thermometers extends vertically to the bottom of the sea, based an anchor, and allows the simultaneous reading of 8 temperatures. The number of sensors is expandable and the device is robust, low cost and low consumption. The temperature data is processed by a microcontroller and transmitted via radio modem to a remote control and recording station almost 1 km away. The tests were carried out at the Ensenada dos Anjos, Arraial do Cabo, RJ. This is a location with peculiar characteristics and one of the main points of upwelling in the coast of Brazil. The technology developed and the integration of sensors with existing meteorological monitoring stations provides a strategic tool for oceanographic studies.