The Global Earth Observation System of Systems ... - PMOD/WRC
The Global Earth Observation System of Systems ... - PMOD/WRC
The Global Earth Observation System of Systems ... - PMOD/WRC
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GEOSS and Metrological Support for MeasuringM<br />
Radiometric<br />
Properties <strong>of</strong> Objects<br />
<strong>of</strong> <strong>Observation</strong>s<br />
Formulation <strong>of</strong> the problem - 1<br />
Optical sensors present a major part <strong>of</strong> the GEOSS program.<br />
• Providing imaging data<br />
• Measurements <strong>of</strong> radiance, reflective properties, and radiation<br />
temperature <strong>of</strong> observation objects.<br />
Measurements can be trusted only if the instruments are metrologically<br />
robust.<br />
<strong>The</strong> task <strong>of</strong> the universal use <strong>of</strong> data acquired with the GEOSS<br />
subsystems can be solved only on the basis <strong>of</strong> common standards<br />
(data formats, geolocation, etc.).<br />
• For a number <strong>of</strong> applications such as climatology, meteorology, and a<br />
environmental monitoring, assuring the uniformity <strong>of</strong> radiometric<br />
measurements obtained by all subsystems and at an unusually high<br />
accuracy and stability levels is <strong>of</strong> extreme importance.<br />
• <strong>The</strong>se exact requirements have not yet been properly reflected in the<br />
10-yr plan.<br />
• <strong>The</strong> solution <strong>of</strong> the problem requires joint efforts both in supporting this<br />
idea and in implementing it at the international level.<br />
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