Igor Semiletov, Natalia Shakhova, Örjan Gustafsson
This dataset builds on an order of magnitude more observations than reports to date on Ocean Acidification (OA) in the Arctic Ocean; and, for the first time in the area of the Arctic Ocean that is most vulnerable to Ocean Acidification - the extensive East Siberian Arctic Shelf Seas. The study demonstrates that severe OA in a large part of the Arctic results from a completely different source/mechanism than what has previously been considered. A decade-worth of observations shows that OA on the Siberian Shelf Seas is not caused by CO₂ uptake from the atmosphere but by a novel horizontal coupling of several different climate change effects: OA is caused by the input of freshwater discharge and degradation of translocated terrestrial organic carbon released from thawing permafrost. The data set includes (i) Carbonate system data, other hydrochemical data, and estimates of aragonite saturation levels 1999–2011; (ii) salinity data; (iii) δ¹³C of DIC from an expedition in 2007; (iv) δ¹⁸O-H₂0 from the ISSS-08 expedition and results of calculations for fractional freshwater contributions from sea ice melt vs rivers; δ¹³C of OC in surface sediments.
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Citation
Igor Semiletov, Natalia Shakhova, Örjan Gustafsson (2016) Seawater Carbonate System, Ocean Acidification and Related Parameters in the East Siberian Arctic Shelf Seas. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/semiletov-2016-carbon-1
References
Semiletov, Igor, Irina Pipko, Örjan Gustafsson, Leif G. Anderson, Valentin Sergienko, Svetlana Pugach, Oleg Dudarev, Alexander Charkin, Alexander Gukov, Lisa Bröder, August Andersson, Eduard Spivak and Natalia Shakhova (2016): Acidification of East Siberian Arctic Shelf waters through addition of freshwater and terrestrial carbon. Nature Geoscience. https://doi.org/10.1038/NGEO2695
Comments
Contact persons for this dataset are Igor Semiletov (igorsm@iarc.uaf.edu; University of Alaska Fairbanks, International Arctic Research Center, USA, Tomsk Polytechnic University, Tomsk, Russia and Russian Academy of Sciences, Pacific Oceanological Institute, Vladivostok, Russia), Natalia Shakhova (nshakov@iarc.uaf.edu; University of Alaska Fairbanks, International Arctic Research Center, USA and Tomsk Polytechnic University, Tomsk, Russia) and Örjan Gustafsson (orjan.gustafsson@aces.su.se; Stockholm University, Department of Environmental Science and Analytical Chemistry (ACES), and the Bolin Centre for Climate Research, Stockholm, Sweden).
GCMD science keywords
Earth Science > Oceans > Ocean Chemistry > Carbon
GCMD location
Ocean > Arctic Ocean
Project
Russian Government (grant No. 2013-220-04-157 under contract #14, Z50.31.0012/03.19.2014); the Russian Foundation for Basic Research (Nos. 13-05-12028, 13-05-12041, 13-05-12042, 13-05-12-29); the Far Eastern Branch of the Russian Academy of Sciences; the US National Science Foundation (OPP ARC-1023281; 0909546); the NOAA Climate Program office (NA08OAR4600758); the Swedish Knut and Alice Wallenberg Foundation (KAW); the Swedish Research Council (VR); and the Nordic Council of Ministries (NMR-TRI-Defrost).
Publisher
Bolin Centre Database
DOI
10.17043/semiletov-2016-carbon-1
Published
2016-04-23 14:08:30