Nitrate chemistry of snow samples collected along the CHICTABA transect, East Antarctica, 2013-2014 ...

• Main Authors: Akers, Pete D, Savarino, Joël, Caillon, Nicolas, Magand, Olivier, Le Meur, Emmanuel
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Antarctica; isotopes; nitrate; snow; transect; Event label; Sample ID; DEPTH, ice/snow; Depth, top/min; Depth, bottom/max; Density, snow; Nitrate; δ17O, nitrate, fractional abundance; δ18O, nitrate, fractional abundance; Δ17O, anomaly, fractional abundance; δ15N, nitrate, fractional abundance; Nitrate, standard error; δ17O, standard error; δ18O, standard error; Δ17O, standard error; δ15N, standard error; Group; Site; Sample comment; Surface mass balance; Confidence interval; Model error; Snow/ice sample; Colorimetry; Mass spectrometer MAT253; MAR output; Calculated; CHICTABA; Antarc*; East Antarctica
• Online Access: https://dx.doi.org/10.1594/pangaea.948348; https://doi.pangaea.de/10.1594/PANGAEA.948348

Nitrate samples were originally collected as 0.2-1.5 kg snow samples in the field along the CHICTABA traverse, Antarctica. Snow was collected in three methods: snow pits, skin layer, and 1 m depth layer. For snow pits, snow was collected in increments of 3 cm thick layers. Skin layer samples were collected as the loose snow grains 2-6 mm deep on the surface. The 1 m depth layer samples were taken as a 5-10 cm thick layer surrounding 1 m depth, which was then thoroughly mixed. Samples were melted and nitrate concentrated with a ion exchange resin at Concordia Station, Antarctica. Isotopic analysis performed with MAT253 mass spectrometer at IGE, Grenoble, France. ...