Akers, Pete D; Savarino, Joël; Caillon, Nicolas; Magand, Olivier; Le Meur, Emmanuel (2022): Nitrate isotopic data from snow collected along the CHICTABA traverse, East Antarctica, 2013-2014 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.948355
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Abstract:
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.
Supplement to:
Akers, Pete D; Savarino, Joël; Caillon, Nicolas; Magand, Olivier; Le Meur, Emmanuel (2022): Photolytic modification of seasonal nitrate isotope cycles in East Antarctica. EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-812
Related to:
Agosta, Cécile; Amory, Charles; Kittel, Christoph; Orsi, Anaïs; Favier, Vincent; Gallée, Hubert; van den Broeke, Michiel R; Lenaerts, Jan T M; van Wessem, Jan Melchior; van de Berg, Willem Jan; Fettweis, Xavier (2019): Estimation of the Antarctic surface mass balance using the regional climate model MAR (1979-2015) and identification of dominant processes. The Cryosphere, 13(1), 281-296, https://doi.org/10.5194/tc-13-281-2019
Akers, Pete D; Savarino, Joël; Caillon, Nicolas; Servettaz, Aymeric P M; Le Meur, Emmanuel; Magand, Olivier; Agosta, Cécile; Crockford, Peter; Kobayashi, Kanon; Hattori, Shohei; Curran, Mark; van Ommen, Tas D; Jong, Lenneke; Roberts, Jason L; Martins, Jean (2022): Nitrate δ15N values and ice density-based surface mass balance from the ABN1314-103 ice core, Aurora Basin North, Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.941491
Akers, Pete D; Savarino, Joël; Caillon, Nicolas; Servettaz, Aymeric P M; Le Meur, Emmanuel; Magand, Olivier; Agosta, Cécile; Crockford, Peter; Kobayashi, Kanon; Hattori, Shohei; Curran, Mark; van Ommen, Tas D; Jong, Lenneke; Roberts, Jason L; Martins, Jean (2022): Spatial variability in sub-photic zone nitrate δ15N and surface mass balance across East Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.941480
Howat, Ian M; Porter, Claire; Smith, Ben E; Noh, Myoung-Jong; Morin, Paul (2019): The Reference Elevation Model of Antarctica. The Cryosphere, 13(2), 665-674, https://doi.org/10.5194/tc-13-665-2019
Funding:
BNP Paribas (France), grant/award no. 1117: BNP-Paribas Climate Initiative program 1117 (CAPOXI 35-75)
Coverage:
Median Latitude: -70.841624 * Median Longitude: 123.150192 * South-bound Latitude: -71.212000 * West-bound Longitude: 111.367000 * North-bound Latitude: -70.431000 * East-bound Longitude: 134.138000
Date/Time Start: 2013-11-30T00:00:00 * Date/Time End: 2013-12-26T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3 datasets
Download Data
Datasets listed in this bundled publication
- Akers, PD; Savarino, J; Caillon, N et al. (2022): Reference Elevation Model of Antarctica elevations along the CHICTABA transect, East Antarctica. https://doi.org/10.1594/PANGAEA.948354
- Akers, PD; Savarino, J; Caillon, N et al. (2022): MAR v3.12.1 annual surface mass balance along the CHICTABA transect, East Antarctica, 1979-2021. https://doi.org/10.1594/PANGAEA.948350
- Akers, PD; Savarino, J; Caillon, N et al. (2022): Nitrate chemistry of snow samples collected along the CHICTABA transect, East Antarctica, 2013-2014. https://doi.org/10.1594/PANGAEA.948348