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

DOI

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. 250-1500 g of snow were collected into clean plastic bags, melted at room temperature at Concordia Station, Dome C, and then the nitrate was concentrated using an ionic exchange resin. Nitrate concentrations were determined using colorimetry. Isotopic analysis occurred at the Institut des Géosciences de l'Environnement, Grenoble, France, through bacterial denitrification and a MAT 253 mass spectrometer with Gas Bench.

Identifier
DOI https://doi.org/10.1594/PANGAEA.948355
Related Identifier IsSupplementTo https://doi.org/10.5194/egusphere-2022-812
Related Identifier References https://doi.org/10.5194/tc-13-281-2019
Related Identifier References https://doi.org/10.1594/PANGAEA.941491
Related Identifier References https://doi.org/10.1594/PANGAEA.941480
Related Identifier References https://doi.org/10.5194/tc-13-665-2019
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.948355
Provenance
Creator Akers, Pete D ORCID logo; Savarino, Joël ORCID logo; Caillon, Nicolas ORCID logo; Magand, Olivier ORCID logo; Le Meur, Emmanuel ORCID logo
Publisher PANGAEA
Publication Year 2022
Funding Reference Agence Nationale de la Recherche https://doi.org/10.13039/501100001665 Crossref Funder ID ANR-10-LABX56 ; Agence Nationale de la Recherche https://doi.org/10.13039/501100001665 Crossref Funder ID ANR-11-EQPX-009-CLIMCOR ; Agence Nationale de la Recherche https://doi.org/10.13039/501100001665 Crossref Funder ID ANR-16-CE01-0011-01 EAIIST; BNP Paribas (France) https://doi.org/10.13039/501100008393 Crossref Funder ID 1115 BNP-Paribas Climate Initiative program 1115 (CHICTABA); BNP Paribas (France) https://doi.org/10.13039/501100008393 Crossref Funder ID 1117 BNP-Paribas Climate Initiative program 1117 (CAPOXI 35-75); BNP Paribas (France) https://doi.org/10.13039/501100008393 Crossref Funder ID 1169 BNP-Paribas Climate Initiative program 1169 (EAIIST)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (111.367W, -71.212S, 134.138E, -70.431N)
Temporal Coverage Begin 2013-11-30T00:00:00Z
Temporal Coverage End 2013-12-26T00:00:00Z