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Volume 10, issue 4
Earth Syst. Sci. Data, 10, 1959-1985, 2018
https://doi.org/10.5194/essd-10-1959-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Syst. Sci. Data, 10, 1959-1985, 2018
https://doi.org/10.5194/essd-10-1959-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Review article 23 Oct 2018

Review article | 23 Oct 2018

The SUMup dataset: compiled measurements of surface mass balance components over ice sheets and sea ice with analysis over Greenland

Lynn Montgomery1, Lora Koenig2, and Patrick Alexander3,4 Lynn Montgomery et al.
  • 1Department of Atmospheric and Oceanic Science, University of Colorado, Boulder, CO, USA
  • 2National Snow and Ice Data Center, University of Colorado, Boulder, CO, USA
  • 3Lamont Doherty Earth Observatory, Columbia University, Palisades, NY, USA
  • 4NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, USA

Abstract. Increasing atmospheric temperatures over ice cover affect surface processes, including melt, snowfall, and snow density. Here, we present the Surface Mass Balance and Snow on Sea Ice Working Group (SUMup) dataset, a standardized dataset of Arctic and Antarctic observations of surface mass balance components. The July 2018 SUMup dataset consists of three subdatasets, snow/firn density (https://doi.org/10.18739/A2JH3D23R), at least near-annually resolved snow accumulation on land ice (https://doi.org/10.18739/A2DR2P790), and snow depth on sea ice (https://doi.org/10.18739/A2WS8HK6X), to monitor change and improve estimates of surface mass balance. The measurements in this dataset were compiled from field notes, papers, technical reports, and digital files. SUMup is a compiled, community-based dataset that can be and has been used to evaluate modeling efforts and remote sensing retrievals. Active submission of new or past measurements is encouraged. Analysis of the dataset shows that Greenland Ice Sheet density measurements in the top 1m do not show a strong relationship with annual temperature. At Summit Station, Greenland, accumulation and surface density measurements vary seasonally with lower values during summer months. The SUMup dataset is a dynamic, living dataset that will be updated and expanded for community use as new measurements are taken and new processes are discovered and quantified.

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The SUMup dataset is a standardized, expandable, community dataset of Arctic and Antarctic observations of surface mass balance components, including snow/firn density, snow accumulation on land ice, and snow depth on sea ice. The measurements in this dataset were compiled from field notes, papers, technical reports, and digital files. We use these observations to monitor change in the polar regions and evaluate model output as well as remote sensing measurements.
The SUMup dataset is a standardized, expandable, community dataset of Arctic and Antarctic...
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