The Cryosphere
The Cryosphere
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Articles | Volume 11, issue 6
Articles | Volume 11, issue 6
https://doi.org/10.5194/tc-11-2727-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/tc-11-2727-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 11, issue 6
Research article
 | 
27 Nov 2017
Research article |  | 27 Nov 2017

Comparison of different methods to retrieve optical-equivalent snow grain size in central Antarctica

Tim Carlsen, Gerit Birnbaum, André Ehrlich, Johannes Freitag, Georg Heygster, Larysa Istomina, Sepp Kipfstuhl, Anaïs Orsi, Michael Schäfer, and Manfred Wendisch

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Short summary
The optical size of snow grains (ropt) affects the reflectivity of snow surfaces and thus the local surface energy budget in particular in polar regions. The temporal evolution of ropt retrieved from ground-based, airborne, and spaceborne remote sensing could reproduce optical in situ measurements for a 2-month period in central Antarctica (2013/14). The presented validation study provided a unique testbed for retrievals of ropt under Antarctic conditions where in situ data are scarce.
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Intercomparison of methods to characterise snow...