Eisen Olaf olaf.eisen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/olaf-eisen.html 0000-0002-6380-962X Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 2024 Snow density profiles from Neumayer station dataset bundled publication https://doi.org/10.1594/PANGAEA.963323 2024-10-18T11:59:42 This is a collection of shallow snow density data sets from research station Neumayer II, Neumayer III and the Kottas traverse between Neumayer, Kottas camp and Kohnen station. The original snow density data are available as Excel and txt files and as density-depth profiles in png format. The data were collected between 2001 and 2021. Measurements in 2019, (2020) and 2021 were taken on a monthly basis. Before this period, sampling took place on a rather irregular basis, but often once a year, at Neumayer station in most cases by members of the overwintering team, lead by the overwinterer for the air chemistry observatory (SPUSO). Sampling during the Kottas traverse was carried out by members of the traverse personnel. The sampling devices used were • conventional steal cylinders with a length of about 20 cm and an inner diameter of 6 cm and a wall thickness of 1 mm; the exact measurements were recorded in the protocols. Due to damage by ice layers the cylinders often have to be sharpened again and therefore become shorter over time ( (method listed in sensor.awi.de as awi_snow_sampler_3). • single-tube carbon fibre liners, as described in Schaller et al. (2016) with a length of 1 m and an inner diameter of around 10 cm and a wall thickness of 1 mm (method listed in sensor.awi.de as awi_snow_sampler_2); • dual-tube carbon liner probing system developed by Dallmayr et al. (2020) (method listed in sensor.awi.de as awi_snow_sampler_1). More details about sampling event nomenclature is provided below in the file description. For the steal cylinder sampling method, sample density was determined for individual depth sections, thus providing a stratigraphic density profile. For both liner methods, density was determined as the bulk density, i.e. the average density of the whole snow core sampled with the carbon liner tube. If it was possible to remove the snow core in a mostly intact way from the liner, it was cut into samples in a aluminium tray, as described in Schaller et al. (2016). This also eventually provides a density profile. Sample depth vary, as thick ice layers often inhibit deeper penetration with either method. In some cases, the carbon liner was damaged, resulting in a non-cylindrical form of the snow sample. Such events were noted in the protocols and an attempt made to correct the density accordingly. A description of the density data sets' is provided in the MSc thesis by Cedric Hecht under supervision of Olaf Eisen. Dallmayr Remi remi.dallmayr@awi.de 0000-0001-6059-0098 Freitag Johannes Johannes.Freitag@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/johannes-freitag.html 0000-0003-2654-9440 Hörhold Maria maria.hoerhold@awi.de 0000-0002-9110-0909 Laepple Thomas Thomas.Laepple@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-laepple.html 0000-0001-8108-7520 Lemburg Johannes johannes.lemburg@awi.de 0000-0002-7356-964X Della-Lunga Damiano Wilhelms Frank frank.wilhelms@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/frank-wilhelms.html 0000-0001-7688-3135 2021 A dual-tube sampling technique for snowpack studies journal article Journal of Glaciology 67(261) https://doi.org/10.1017/jog.2020.85 84-90 Schaller Christoph Florian christoph.schaller@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/christoph-schaller.html 0000-0003-1898-1188 Freitag Johannes Johannes.Freitag@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/johannes-freitag.html 0000-0003-2654-9440 Kipfstuhl Sepp sepp.kipfstuhl@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/sepp-kipfstuhl.html 0000-0003-1495-5273 Laepple Thomas Thomas.Laepple@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/thomas-laepple.html 0000-0001-8108-7520 Steen-Larsen Hans Christian Hans.Christian.Steen-Larsen@uib.no 0000-0002-7202-5907 Eisen Olaf olaf.eisen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/olaf-eisen.html 0000-0002-6380-962X 2016 A representative density profile of the North Greenland snowpack journal article The Cryosphere 10(5) https://doi.org/10.5194/tc-10-1991-2016 1991-2002 2023 Collection of original density profile protocols including additional details in German language Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://download.pangaea.de/reference/123945/attachments/DensityProfiles_Neumayer_raw-protocols.zip -9.752601009999978 -0.024210949999996956 -75.01531066 -70.65491000000002 -8.249419864511449 -71.09649319590109 2001-12-30T00:00:00 2025-02-01T16:30:00 25 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Sample number | Sample no | Density, ice | Density ice | Image | IMAGE | in m | Depth, description | Depth desc | Date/time end | Density, snow/firn/ice | Dens snow/firn/ice citable Dronning Maud Land Neumayer Station snow accumulation snow cores snow density snow pit param128037 param150836 param150986 param151382 param508750 param525678 pi27488 author10576 author24628 author27488 author29695 author37585 author53764 author58978 author64219 author77407 author77408 author968 geocode1599 geocode1600 geocode1601 inst32 journal4140 journal8833 license21 ref105374 ref123945 ref86970 term2687887 term47301 term52462 term52952 term67969 term69070