AUTHOR=Machguth Horst , Box Jason E. , Fausto Robert S. , Pfeffer William Tad TITLE=Editorial: Melt Water Retention Processes in Snow and Firn on Ice Sheets and Glaciers: Observations and Modeling JOURNAL=Frontiers in Earth Science VOLUME=6 YEAR=2018 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2018.00105 DOI=10.3389/feart.2018.00105 ISSN=2296-6463