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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2025
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| Online-Zugang: | https://doi.org/10.1594/PANGAEA.974778 |
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| _version_ | 1867171047067877376 |
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| author | Behrens, Melanie Hörhold, Maria Dallmayr, Remi Laepple, Thomas Freitag, Johannes Wilhelms, Frank |
| author_facet | Behrens, Melanie Hörhold, Maria Dallmayr, Remi Laepple, Thomas Freitag, Johannes Wilhelms, Frank |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Isotopic composition of the top-meter of the snowpack along a 115km traverse between B31 and D50, near Kohnen station, Dronning-Maud Land, East-Antarctica. Site D2 refers to the firn core drilling site B31. At each sampling site, profiles were sampled at 10 m distance in 90 m long trenches: _R samples using the dual-tube sampling technique (Dallmayr et al., 2020), 3 subsections of the top-1m were sampled and at sites C4, C5, D2, D7, D24, D38, the top-1m of the trenches were sampled with the dual-tube and 5 single liners were taken and subsampled to 1 - 3 cm resolution (Hirsch, Nora; Hörhold, Maria; Dallmayr, Remi; Laepple, Thomas; Freitag, Johannes; Meyer, Hanno; Weiner, Mikaela (2023): Stable water isotopologues of arrays of high resolution 1 m snow cores from across Dronning Maud Land, East Antarctic Plateau [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956273) _M samples: Mixed 4 subsections of the top-1.2m of the 90m long trenches excavated by Pistenbully. All isotopic analysis were realized by CRDS (Cavity-Ring-Down Spectroscopy) measurements at the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung in Bremerhaven (instrument models L-2120-i, L-2140-i, Picarro Inc.). The samples were shipped frozen to the Alfred-Wegener-Institut and stored at -25°C. Prior to measurements the samples were melted in the sample bags at room temperature. The measurement set-up followed the Van-Geldern Protocol. Each sample was injected four times and the standard deviation is computed. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_974778 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | 100km-scale isotopic (d18O, dD) variability of the top-meter between B31 and Kohnen, Dronning Maud Land (M samples) Behrens, Melanie Hörhold, Maria Dallmayr, Remi Laepple, Thomas Freitag, Johannes Wilhelms, Frank 100km scale; Antarctica; ANT-Land_2018_KohnenQK; ANT-Land_2018_KohnenQK1; Cavity ring-down spectroscopy (CRDS), isotopic water analyzer, Picarro Inc., L2120-i, L2140-i; DEPTH, ice/snow; Dronning Maud Land traverse; DUAL-TUBE; Dual-tube sampling; Kohnen Station; LATITUDE; LONGITUDE; Position; Replicate; Sample code/label; Sample ID; Sample mass; Site; stable water isotopes; top-meter snowpack; topography; δ18O, water; δ18O, water, standard deviation; δ Deuterium, water; δ Deuterium, water, standard deviation Isotopic composition of the top-meter of the snowpack along a 115km traverse between B31 and D50, near Kohnen station, Dronning-Maud Land, East-Antarctica. Site D2 refers to the firn core drilling site B31. At each sampling site, profiles were sampled at 10 m distance in 90 m long trenches: _R samples using the dual-tube sampling technique (Dallmayr et al., 2020), 3 subsections of the top-1m were sampled and at sites C4, C5, D2, D7, D24, D38, the top-1m of the trenches were sampled with the dual-tube and 5 single liners were taken and subsampled to 1 - 3 cm resolution (Hirsch, Nora; Hörhold, Maria; Dallmayr, Remi; Laepple, Thomas; Freitag, Johannes; Meyer, Hanno; Weiner, Mikaela (2023): Stable water isotopologues of arrays of high resolution 1 m snow cores from across Dronning Maud Land, East Antarctic Plateau [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956273) _M samples: Mixed 4 subsections of the top-1.2m of the 90m long trenches excavated by Pistenbully. All isotopic analysis were realized by CRDS (Cavity-Ring-Down Spectroscopy) measurements at the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung in Bremerhaven (instrument models L-2120-i, L-2140-i, Picarro Inc.). The samples were shipped frozen to the Alfred-Wegener-Institut and stored at -25°C. Prior to measurements the samples were melted in the sample bags at room temperature. The measurement set-up followed the Van-Geldern Protocol. Each sample was injected four times and the standard deviation is computed. |
| title | 100km-scale isotopic (d18O, dD) variability of the top-meter between B31 and Kohnen, Dronning Maud Land (M samples) |
| topic | 100km scale; Antarctica; ANT-Land_2018_KohnenQK; ANT-Land_2018_KohnenQK1; Cavity ring-down spectroscopy (CRDS), isotopic water analyzer, Picarro Inc., L2120-i, L2140-i; DEPTH, ice/snow; Dronning Maud Land traverse; DUAL-TUBE; Dual-tube sampling; Kohnen Station; LATITUDE; LONGITUDE; Position; Replicate; Sample code/label; Sample ID; Sample mass; Site; stable water isotopes; top-meter snowpack; topography; δ18O, water; δ18O, water, standard deviation; δ Deuterium, water; δ Deuterium, water, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.974778 |