DOI: 10.5285/cb159b6c-a4b3-4245-80fd-4b4e8122a858
title: Water-stable isotope (d18O, dD), sodium (23Na), and magnesium (24Mg) Continuous Flow Analysis data for the Palmer ice core, Palmer Land, Antarctic Peninsula, 1621-2011 C.E.

description: Here we provide the Palmer ice core Water-stable isotope (d18O, dD), sodium (23Na), and magnesium (24Mg) palaeo archives. The Palmer drill site (73.86 S, 65.46 W, 1897 m a.s.l.) is located on the southern part of the Antarctic Peninsula, Palmer Land. The core, firn and ice, were drilled in December 2012 to a depth of 133 m below the snow surface. The Palmer ice core covers 391 years, 1621-2011 C.E. The data were measured on the British Antarctic Survey Continuous Flow Analysis system in Cambridge, UK. Data is given both on depth and temporal (annual means) scales. The d18O and dD records were measured on a CFA laser spectroscopy system and the 23Na and 24Mg data were measured on the CFA ICP-MS setup. The ice core drilling and analysis were funded by the British Antarctic Survey, Natural Environment Research Council (NERC, Cambridge, UK), part of UK research and innovation and NERC grant NE/J020710/1. The Palmer analysis was funded by Haus der Kulturen der Welt (HKW, Berlin, Germany), in collaboration with the Anthropocene working group (AWG).
description: A suite of chemical species and isotopes was measured using Continuous Flow Analysis (CFA) in the ice core labs at BAS (Cambridge, UK). The CFA system comprises Fast Ion Chromatography (FIC), Inductively Coupled Plasma Mass Spectrometry (ICP-MS), fluorescence, and laser spectroscopy instrumentation. All instruments are customized for operation in continuous mode, that is, ice core sections are melted and analysed simultaneously on the instruments from a continuous sample stream. The Palmer ice core water-stable isotopes records (d18O, dD) were measured on a laser spectroscopy setup (Picarro, L2130-i). The analyzer operates in continuous mode. A continuous ice-core sample stream is instantaneously evaporated and mixed with a dry carrier gas (N2) in a custom-made evaporation unit prior to being introduced to the analyzer. The raw data were corrected using two-point calibration, utilizing in-house reference waters. The internal standards have been calibrated with the Vienna Standard Mean Ocean Water 2 (V-SMOW2) and Standard Light Antarctic Precipitation 2 (SLAP2) reference waters.
description: The ice core records were measured in the BAS ice core laboratory. The CFA system comprises Fast Ion Chromatography (FIC), Inductively Coupled Plasma Mass Spectrometry (ICP-MS), fluorescence, and laser spectroscopy instrumentation. Here we present d18O and dD data from the BAS water-stable isotope laser spectroscopy CFA setup and sodium (23Na), and magnesium (24Mg) from the ICP-MS. The processing of the data, extraction, assigning depth scale, calibration, and calculation of annual means was done utilizing MATLAB version 2020b.
description: The raw data were corrected using two-point calibration, utilizing in-house reference waters. The internal standards have been calibrated with the Vienna Standard Mean Ocean Water 2 (V-SMOW2) and Standard Light Antarctic Precipitation 2 (SLAP2) reference waters.