Surface Mass Balance and Snow on Sea Ice Working Group (SUMup)

The Surface Mass Balance and Snow on Sea Ice Working Group (SUMup) is leading NASA's effort to to improve spatial and temporal estimates of surface mass balance on ice sheets and snow accumulation on sea ice.   SUMup  was convened at the direction of the NASA Cryospheric Sciences Program to assess current satellite algorithms, regional models, and measurements to recommend future directions for improving calculations of surface mass balance over the ice sheets and snow accumulation on sea ice. Improving our measurement and modeling of surface processes such as accumulation, redistribution of snow and melt are required to accurately determine future changes in both land ice and sea ice. 

SUMup datasets

SUMup is compiling three measurement datasets:  

1) Annual Accumulation over the ice sheets and caps from 1800 on.

2) Snow Density over sea ice and the ice sheets and caps

3) Snow Depth over sea ice

At the 2012 SUMup meeting it was determined that easy access to these data would help improve modeling and remote sensing efforts.  SUMup has compled these datasets as of 2017 and has made them available below. An effort is currently underway to update these with a 2018 release of the data. 

To Access Data: Please follow the links below to files hosted at the NSF Data Center:

- Accumulation

- Snow Density

- Snow Depth

 

To Submit Data: Please send an e-mail to Lora Koenig or Lynn Montgomery

 

Auxiliary Links

MAR v3.2 Regional Climate Model Data for Greenland (1958-2013)

2014 PARCA Meeting-Greenland Hydrology Breakout Notes

These notes were taken during the Greenland Hydrology Breakout Session at the 2014 PARCA meeting held at Goddard Space Flight Center.  The notes were submitted for discussion, clarification and refinement to the PARCA list serve.


2012 SUMup Meeting Notes

The inaugural meeting of SUMup took place at NASA’s Goddard Space Flight Center on September 20-21, 2012. The meeting had approximately 30 attendees representing multiple universities, international collaboration and two government agencies. The initial notes and recommendations from this meeting were condensed to a bulleted list and submited to the Cryospheric Sciences Program.

2012 SUMup Meeting and Agenda

Open Invitation

The SUrface Mass Balance and snow on sea ice (SUMup) Working Group meeting is planned for September 20-21, 2012 at the NASA Goddard Space Flight Center in Greenbelt, MD, USA. This working group meeting is being convened at the direction of the NASA Cryospheric Sciences Program to assess current satellite algorithms/methods, models and measurements and to recommend future directions to improve calculations of surface mass balance over the ice sheets and snow accumulation on sea ice.

The ultimate goal of this working group is to improve spatial and temporal estimates of surface mass balance on ice sheets and snow accumulation on sea ice.

Prior to the meeting we will ask you to participate in preparatory topic based telecons to ensure a productive meeting. The first day of the meeting will be devoted to short presentations followed by discussion and the second day will be devoted to drafting a paper outlining the status, including strengths and weaknesses, of existing measurements, modeling and remote sensing methods. The questions that we would like to address at the first meeting are:

  • 2012 Agenda - pdf, 429.7 kB: 2012 SUMup Meeting Agenda

SUMup Leaders and Participants

Lora Koenig, NASA Goddard Space Flight Center

Richard Forster, University of Utah

Nathan Kurtz, NASA Goddard Space Flight Center, Morgan State University