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Proceedings Paper

The broadband radiometer on the EarthCARE spacecraft
Author(s): Kotska Wallace; Nigel Wright; David Spilling; Kim Ward; Martin Caldwell
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Paper Abstract

EarthCARE, the third of ESA's Earth Explorer Core Missions, is aimed at improving the understanding of interactions between clouds, aerosols and radiation - three factors believed to be important in the understanding of global warming. The Broadband Radiometer instrument will serve to confirm the radiated energy estimates which will be derived from the profiles of clouds and aerosols measured by the other instruments on the satellite. The BBR instrument will use 3 arrays of uncooled microbolometers to measure the Top Of the Atmosphere flux in 2 channels (0.2μm - 4μm, 0.2μm - 50μm), simultaneously in 3 directions (nadir, forward and backward). The long wave channel will be inferred from subtraction of the short wave from the total wave measurements. This paper will describe the status of the BBR instrument design, trade-offs and performance. A novel design is required to perform at much higher spatial resolutions than previous Earth Radiation Budget instruments and the method of achieving this will be described.

Paper Details

Date Published: 1 September 2009
PDF: 8 pages
Proc. SPIE 7453, Infrared Spaceborne Remote Sensing and Instrumentation XVII, 74530H (1 September 2009); doi: 10.1117/12.825837
Show Author Affiliations
Kotska Wallace, European Space Agency (Netherlands)
Nigel Wright, Systems Engineering & Assessment Ltd. (United Kingdom)
David Spilling, Systems Engineering & Assessment Ltd. (United Kingdom)
Kim Ward, Rutherford Appleton Lab. (United Kingdom)
Martin Caldwell, Rutherford Appleton Lab. (United Kingdom)


Published in SPIE Proceedings Vol. 7453:
Infrared Spaceborne Remote Sensing and Instrumentation XVII
Marija Strojnik, Editor(s)

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