High-resolution density profiles of two firn cores from Union Glacier, Ellsworth Mountains, West Antarctica
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2024
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| _version_ | 1867171377791893504 |
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| author | Hoffmann-Abdi, Kirstin Fernandoy, Francisco Meyer, Hanno Thomas, Elizabeth R Aliaga, Marcelo Tetzner, Dieter Freitag, Johannes Opel, Thomas Arigony-Neto, Jorge Göbel, Christian Florian Jaña, Ricardo Rodríguez Oroz, Delia Tuckwell, Rebecca Lynch, Emily McConnell, Joseph R Schneider, Christoph |
| author_facet | Hoffmann-Abdi, Kirstin Fernandoy, Francisco Meyer, Hanno Thomas, Elizabeth R Aliaga, Marcelo Tetzner, Dieter Freitag, Johannes Opel, Thomas Arigony-Neto, Jorge Göbel, Christian Florian Jaña, Ricardo Rodríguez Oroz, Delia Tuckwell, Rebecca Lynch, Emily McConnell, Joseph R Schneider, Christoph |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Firn cores BAL-1 and PASO-1 were both retrieved in November 2015 from the Union Glacier region, located in the Ellsworth Mountains at the northern edge of the West Antarctic Ice Sheet. BAL-1 was drilled in a U-shaped glacial valley (Balish Glacier) at an altitude of approximately 1520 m above sea level (a.s.l.) to a depth of 17.28 m. PASO-1 was drilled on a plateau west of the Gifford Peaks at an altitude of about 1920 m a.s.l. to a depth of 15.04 m. Both firn cores were obtained using a portable solar-powered and electrically operated ice-core drill (Backpack Drill; icedrill.ch AG). Density measurements of the two firn cores were performed at the ice-core processing facilities of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) in Bremerhaven, Germany, in spring and autumn 2016. X-ray microfocus computer tomography (ICE-CT; Freitag et al., 2013, doi:10.3189/2013JoG13J028) was used for the measurements, providing depth-density profiles with a resolution of better than 1 mm. The density data were used to analyse the firn core stratigraphy (e.g., determination of the snow-firn transition depth, identification of wind crusts), to calculate diffusion lengths as well as to derive accumulation rates for the firn-core drill sites. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_963192 |
| institution | PANGAEA |
| language | en |
| publishDate | 2024 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | High-resolution density profiles of two firn cores from Union Glacier, Ellsworth Mountains, West Antarctica Hoffmann-Abdi, Kirstin Fernandoy, Francisco Meyer, Hanno Thomas, Elizabeth R Aliaga, Marcelo Tetzner, Dieter Freitag, Johannes Opel, Thomas Arigony-Neto, Jorge Göbel, Christian Florian Jaña, Ricardo Rodríguez Oroz, Delia Tuckwell, Rebecca Lynch, Emily McConnell, Joseph R Schneider, Christoph Antarctica; density; firn core; snow density; Snowpack; West Antarctica Firn cores BAL-1 and PASO-1 were both retrieved in November 2015 from the Union Glacier region, located in the Ellsworth Mountains at the northern edge of the West Antarctic Ice Sheet. BAL-1 was drilled in a U-shaped glacial valley (Balish Glacier) at an altitude of approximately 1520 m above sea level (a.s.l.) to a depth of 17.28 m. PASO-1 was drilled on a plateau west of the Gifford Peaks at an altitude of about 1920 m a.s.l. to a depth of 15.04 m. Both firn cores were obtained using a portable solar-powered and electrically operated ice-core drill (Backpack Drill; icedrill.ch AG). Density measurements of the two firn cores were performed at the ice-core processing facilities of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) in Bremerhaven, Germany, in spring and autumn 2016. X-ray microfocus computer tomography (ICE-CT; Freitag et al., 2013, doi:10.3189/2013JoG13J028) was used for the measurements, providing depth-density profiles with a resolution of better than 1 mm. The density data were used to analyse the firn core stratigraphy (e.g., determination of the snow-firn transition depth, identification of wind crusts), to calculate diffusion lengths as well as to derive accumulation rates for the firn-core drill sites. |
| title | High-resolution density profiles of two firn cores from Union Glacier, Ellsworth Mountains, West Antarctica |
| topic | Antarctica; density; firn core; snow density; Snowpack; West Antarctica |
| url | https://doi.org/10.1594/PANGAEA.963192 |