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Earth System Science Data The Data Publishing Journal
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 status
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 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.
Citation: Montgomery, L., Koenig, L., and Alexander, P.: The SUMup Dataset: Compiled measurements of surface mass balance components over ice sheets and sea ice with preliminary analysis over Greenland, Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2018-21, in review, 2018.
Lynn Montgomery et al.
Lynn Montgomery et al.

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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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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