Thermal and Radar Overview

This chapter presents an overview of the remote sensing technologies that measure sea surface temperature (SST) based on emitted radiation (passive sensors), as well as the suite of properties that are measured using transmitting radar systems (active sensors). Remote sensing of these parameters is undertaken using the infrared, microwave and radio-wave regions of the electromagnetic spectrum. The overview describes the underlying physics for each remote sensing technique, presents issues that influence the acquisition of various parameters, and describes the environmental variables that can be monitored. Chapters 12 and 13 then describe the applications for coral reefs of thermal and radar remote sensing, respectively.

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