NSF Workshop on HighPerformance Distributed Computing and Polar Sciences Rutgers University New Brunswick, New Jersey, 4–5 December 2014 Iceberg by Ilulissat, Greenland (courtesy: Asa Rennermalm) Report Editors: Shantenu Jha (Rutgers), Lynn Yarmey (NSIDC) Report Contributors: Andrew Carleton (PSU), Anna Liljedahl (UAF), Jarek Nabrzyski (Notre Dame), Toni Rosati (NSIDC), Asa Rennermalm (Rutgers), Jane Wyngaard (NASA) Graphics: Kristina Davis (Notre Dame) Supraglacial stream on the Greenland ice sheet (courtesy: Asa Rennermalm)