Infrared Sea Surface Temperature Autonomous Radiometer

The Infrared Sea surface temperature Autonomous Radiometer (ISAR) has been developed to provide accurate and reliable measurements of the radiative sea surface temperature (SSTskin) to an accuracy of ±0.1 K without the need of operator intervention. Infrared emission from the sea surface and atmosphere are measured in the spectral waveband 9.8-11 µm. The ISAR system has been specifically designed to address the problem of sea-water spray or rain, which without adequate environmental protection of delicate infrared radiometer fore-optics, could introduce significant errors in the SSTSkin measurement. Furthermore it provides a self calibrating infra red radiometer system that can operate autonomously for extended periods when deployed from a ship of opportunity (SOO).