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Discussion papers | Copyright
https://doi.org/10.5194/essd-2018-21
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Review article 07 Mar 2018

Review article | 07 Mar 2018

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This discussion paper is a preprint. A revision of the manuscript is under review for the journal Earth System Science Data (ESSD).

The SUMup Dataset: Compiled measurements of surface mass balance components over ice sheets and sea ice with preliminary 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 10025, USA

Abstract. Increasing atmospheric temperatures over ice cover affects surface processes including melt, snowfall and snow density. Here, we present the SUMup dataset, a standardized dataset of Arctic and Antarctic observations of surface mass balance components. The July 2017 SUMup dataset consists of three subdatasets, snow/firn density (doi:10.18739/A26D6F), snow accumulation on land ice (doi:10.18739/A2XX0V), and snow depth on sea ice (doi:10.18739/A22Q35), 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. Measurements in the dataset are sporadic in time and have spatial gaps, however, they likely constitute the largest set of field measurements compiled, standardized and publicly available. Analysis of the dataset shows that Greenland ice sheet density measurements in the top 1 m 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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Data sets

Surface Mass Balance and Snow Depth on Sea Ice Working Group (SUMup) accumulation on land ice subdataset L. Koenig and L. Montgomery https://doi.org/10.18739/A2781G

Surface Mass Balance and Snow Depth on Sea Ice Working Group (SUMup) snow density subdataset L. Koenig and L. Montgomery https://doi.org/10.18739/A2BJ96

Surface Mass Balance and Snow Depth on Sea Ice Working Group (SUMup) snow depth on sea ice subdataset L. Koenig and L. Montgomery https://doi.org/10.18739/A2W22P

Lynn Montgomery et al.
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Latest update: 21 Sep 2018
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Short summary
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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