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Abstract

NASA global satellite data provide observations of Earth's albedo, i.e., the fraction of incident solar radiation that is reflected back to space. The satellite data show that the last four years are within natural variability and fail to confirm the 6% relative increase in albedo inferred from observations of earthshine from the moon. Longer global satellite records will be required to discern climate trends in Earth's albedo.

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References and Notes

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We thank the CERES science, algorithm, and data management teams, the NASA Langley Atmospheric Sciences Data Center, and the NASA Science Mission Directorate for supporting this research.

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Published In

Science
Volume 308 | Issue 5723
6 May 2005

Submission history

Received: 18 October 2004
Accepted: 18 March 2005
Published in print: 6 May 2005

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Authors

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Bruce A. Wielicki* [email protected]
NASA Langley Research Center, 21 Langley Boulevard, Hampton, VA 23681, USA.
Takmeng Wong
NASA Langley Research Center, 21 Langley Boulevard, Hampton, VA 23681, USA.
Norman Loeb
Department of Atmospheric Science, Hampton University, Hampton, VA, USA.
Patrick Minnis
NASA Langley Research Center, 21 Langley Boulevard, Hampton, VA 23681, USA.
Kory Priestley
NASA Langley Research Center, 21 Langley Boulevard, Hampton, VA 23681, USA.
Robert Kandel
Laboratoire de Meteorologie Dynamique du CNRS, Palaiseau, France.

Notes

*
To whom correspondence should be addressed. E-mail: [email protected]

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