Ice mass balance data PS81/506-1 from Weddell Sea, Antarctica, 2013-2014


Ice mass balance (IMB) buoy data PS81/506 from Weddell Sea, Antarctica, 2013-2014. The buoy was deployed together with an automatic weather station buoy (see under related) on sea ice station PS81/506 from Research Vessel Polarstern in the Antarctic Weddell Sea in austral winter 2013 (cruise leg ANT-XXIX/6, AWECS campaign). The IMB buoy provides data between 2013-07-13T12:15:00 and 2014-02-07T01:17:00. The IMB buoy was kindly provided by the Scottish Association for Marine Science (SAMS). The IMB buoy consisted of a thermistor string of 5 m length, with a 2 cm sensor spacing. Interfaces were determined by hand. The bottom interface was determined from the existence of a knee in the temperature profile where apparent, combined with the heating cycle data. Both the amount of heating, and the ratio of heating at 60s over heating at 30s were used. This is very accurate up until ~day 300, and it is probably about +/- 4 cm after that. The snow interface was determined by the above, and looking at the knee in the temperature profile for each of the four temperature profiles during the day. This is more difficult to pick out, so accuracy here is maybe a few cm. Note flooding occurred at ~day 290 (probably up to freeboard level on ~day 278). The flooding interface was determined from day 250 on, and based mostly on the heating cycle. Clear surface snow melt on ~day 330, and IMB goes isothermal and warm on ~day 350. It may be that the thermistor string was pulled out of the ice, since it is warm at the sensors that were in the ocean.

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Metadata Access
Creator Wever, Nander ORCID logo; Maksym, Ted; White, Seth; Leonard, Katherine C
Publisher PANGAEA
Publication Year 2021
Funding Reference National Science Foundation Crossref Funder ID OPP-1142075 Role of Snow Distribution Processes in Antarctic Sea Ice Mass Balance; National Science Foundation Crossref Funder ID OPP-1341513 Collaborative Research: Seasonal Sea Ice Production in the Ross Sea, Antarctica; Swiss National Science Foundation Crossref Funder ID 142684 Antarctic precipitation, snow accumulation processes, and ice-ocean interactions; Swiss National Science Foundation Crossref Funder ID 172299 Spatial variability of snow on sea ice: where does it originate from and how does it impact the sea ice mass balance?
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 12 data points
Discipline Earth System Research
Spatial Coverage (-23.056 LON, -67.130 LAT); Weddell Sea