EastGRIP snow-pack and ice-core densities (measured and modelled)

• Main Authors: Rasmussen, Sune Olander, Vinther, Bo Møllesøe, Freitag, Johannes, Kipfstuhl, Sepp
• Format: Other/Unknown Material
• Language: English
• Published: PANGAEA 2023
• Subjects: density; East Greenland Ice-core Project; EastGRIP 2016 snow trench; EastGRIP main core; EastGRIP S6 shallow ice core; EGRIP; EGRIP_2016_snow_trench; EGRIP_main_core; EGRIP_S6; Greenland; ICEDRILL; Ice drill; SNOWTRE; Snow trench; East Greenland; Greenland ice core; Greenland Ice core Project; ice core
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.962754; https://doi.org/10.1594/PANGAEA.962754

We here report measured densities from a combination of records from the EastGRIP ice-core site. The data come from a trench and two ice cores: the shallow EGRIP-S6 core and the deep main core of the project. Based on these data, we parametrize the density as a function of depth, allowing us to provide a standard transfer function between true depth and ice-equivalent depth which is consistent with the EGRIP density measurements. EGRIP density data are only available to 117 m depth, at which depth the density is about 900 kg/m^3 and the difference between true depth and ice-equivalent depth is about 22 m. The density and overburden profiles have been extended below this depth and all the way to 1200 m in order to provide a convenient, continuous and (mostly) smooth transfer function between true depth and ice-equivalent depth. See PDF file provided under 'Documentation' for full description of data and parametrization.