The Global Earth Observation System of Systems ... - PMOD/WRC

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