High-resolution stable water isotope composition of firn core OH-7 from Plateau Laclavere, northern Antarctic Peninsula

• Main Authors: Hoffmann-Abdi, Kirstin, Meyer, Hanno, Fernandoy, Francisco, Freitag, Johannes, Shaw, Fyntan M, Werner, Martin, Thomas, Elizabeth R, McConnell, Joseph R, Weiner, Mikaela, Schneider, Christoph
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Antarctic Peninsula; ANT-Land_2014_AntarcticPeninsula; API2014; AUG; Auger; AWI Antarctic Land Expedition; Cavity ring-down spectrometers L2130-i and L2140-i; Picarro Inc.; DEPTH; ice/snow; Deuterium excess; Firn chemistry; firn core; OH-7; proxies; Sample ID; stable water isotopes; δ18O; water; δ Deuterium; Antarctic; The Antarctic; Alfred Wegener Institute; Antarc*; Ice cap; Journal of Glaciology
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.961077; https://doi.org/10.1594/PANGAEA.961077

Firn core OH-7 was retrieved from Plateau Laclavere, a small ice cap on the northernmost end of the Antarctic Peninsula, at about 1130 m above sea level (a.s.l.). It was drilled in January 2014 to a depth of 15.31 m using a mechanical 9 cm diameter drilling device (Rufli auger). Subsamples for stable water isotope analysis were obtained from the core at 5 cm resolution. Stable water isotope measurements were performed at the ISOLAB Stable Isotope Facility of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) in Potsdam, Germany, in summer 2017, using cavity ring-down spectrometers L2130-i and L2140-i (Picarro Inc.) coupled to an auto-sampler (L2130-i: PAL HTC-xt, CTC Analytics AG; L2140-i: Picarro Autosampler, Picarro Inc.). The core has not been dated yet.