QAS winter balance survey 2025-04-23

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QAS winter balance survey 2025-04-23
Box, Jason Eric; Bahbah, Rasmus, 2025, "QAS winter balance survey 2025-04-23", https://doi.org/10.22008/FK2/WZEPGJ, GEUS Dataverse, V3
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Description
As part of a PROMICE mission, Jason Box and Rasmus Bahbah (Nielsen) made a snow water equivalent (SWE), a.k.a. winter balance survey at seven southern Greenland ice sheet locations spanning 241 m to 950 m above sea level.

The survey date is essentially at the end of the 2024/2025 accumulation season, i.e. prior to the start of the 2025 ablation season. The seven sites are host to other measurements, e.g.: SWE is being measured sub-daily by SnowFox at QAS_L, ice ablation is measured sub-daily at AWS sites (QAS_L, QAS_M, QAS_U) and annually (summer balance) at stake sites, e.g. Q2,Q3,Q4,Q5.

A 9 cm Kovacs coring device was used and a snow metrics balance and a plastic bag to contain core samples. one to five coring runs were made and from the individual runs it is possible to get more vertical resolution on the snow density

A .xlsx file contains a data summary from which a .csv file was also exported.

see the .pdf for scans of the field notes/raw data

The zip archive includes: 2025 04 23 QAS SWE survey - stakes - 7 pages.pdf, snow-profiles-QAS-2025.csv, Figures, snow-profiles-QAS-2025.xlsx, plot_snow-profiles-QAS-2025.py

the work is related to Herman et al (2018), JGR, cited below and in 2018 there was another SWE survey available already in the SumUp dataset.

(2025-04-23)
Subject Earth and Environmental Sciences
Keyword SWE
Related Publication Hermann M., Box JE., Fausto RS., Colgan WT., Langen PL., Mottram R., Wuite J., Noël B., van den Broeke MR., van As D. 2018. Application of PROMICE Q-transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet. J. Geophys. Res. Earth Surf. 123:1235–1256. doi: 10.1029/2017JF004408
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Q transect stakes 2013-2025.xlsx - summary - summary table.csv
Comma Separated Values - 930 B
Published Apr 28, 2025
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MD5: 0604aee351215fd96b32ae8e7142bbbf
snow-profiles-QAS-2025.csv
Comma Separated Values - 1.2 KB
Published Apr 28, 2025
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MD5: 0239c6f52dfc472e02958e93c8067d4c
Q5 stake length.py
Python Source Code - 1.4 KB
Published Apr 28, 2025
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MD5: c974500c7a5b87be63ef646cdb5e46f3
plot_snow-profiles-QAS-2025.py
Python Source Code - 4.2 KB
Published Apr 28, 2025
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MD5: 18996517d3f1efad33aa8ddc94d7699e
snow-profiles-QAS-2025.xlsx
MS Excel Spreadsheet - 62.7 KB
Published Apr 28, 2025
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MD5: 7eb4ca9e2040e67549d7c8edb493d234
SWE_vs_snow-depth_QAS-2025.png
SWE_vs_snow-depth_QAS-2025.png
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Published Apr 28, 2025
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MD5: 9d216bf56edfe6051cae836e83812f91
snow-profiles-QAS-2025.png
snow-profiles-QAS-2025.png
PNG Image - 257.0 KB
Published Apr 28, 2025
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MD5: 399fe5adf3a3d5f939c18e0b4625dc39
QAS spring 2025 summary.pdf
Adobe PDF - 1.1 MB
Published Apr 28, 2025
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MD5: 822cabc212fb6325d0659c9e85c8fae6
2025 04 23 QAS SWE survey - stakes - 7 pages.pdf
snow-profiles-QAS-2025/Adobe PDF - 1.8 MB
Published Apr 27, 2025
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MD5: b7595cd7279670fe40bfc87205b022ea
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