Data Archiving and Networked Services, Royal Netherlands Academy of Arts and Sciences, The Hague, Netherlands.|National Snow and Ice Data Centre, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, United States of America.|College of University Libraries & Learning Sciences, The University of New Mexico, Albuquerque, New Mexico, United States of America.|Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece.|Research Data Management Solutions, Elsevier, Jericho, Vermont, United States of America.|Australia National Data Service, Melbourne, Australia.