Erratum to: Editorial
© Krafft et al.; licensee Springer. 2014
Received: 28 July 2014
Accepted: 28 July 2014
Published: 18 August 2014
The affiliation list in the original version of this article (Krafft et al. 2014) incorrectly listed that Michael Piasecki and Ghassem Asrar were affiliated with the Department of Geography, University of Zurich. This correction article now lists the full correct affiliations of all authors.
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