Nitrate isotopic data from snow collected along the CHICTABA traverse, East Antarctica, 2013-2014 ...

• Main Authors: Akers, Pete D, Savarino, Joël, Caillon, Nicolas, Magand, Olivier, Le Meur, Emmanuel
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2022
• Subjects: Antarctica; isotopes; nitrate; snow; transect; East Antarctica; Antarc*
• Online Access: https://dx.doi.org/10.1594/pangaea.948355; https://doi.pangaea.de/10.1594/PANGAEA.948355

This dataset contains isotopic ratios of nitrate analyzed from snow samples collected along the CHICTABA traverse in East Antarctica in Nov 2013-Jan 2014. Supplemental information on the elevation (doi:10.5194/tc-13-665-2019) and surface mass balance changes (doi:10.5194/tc-13-281-2019) along the traverse route are also included for context. The samples came from relatively shallow depths of the snowpack (maximum = 2.03 m deep) and represent nitrate deposition that occurred from 0-6 years ago. These samples were collected in order to better understand the interaction and mass transfer of nitrate at the snow-air interface in Antarctica, with particular focus on determining the impacts of photolysis on nitrate.Snow samples were collected with three techniques: skin layer samples of the loose snow grains 2-6 mm deep on the snow surface, 1 m depth layer samples taken as a 5-10 cm thick layer from 1 m below the snow surface, and snow pits that extended 99-203 cm deep and were sampled at 3 cm continuous intervals. ...