Carbon fluxes across boundaries in the pacific arctic region in a changing environment

Wei Jun Cai, Nicholas R. Bates, Laodong Guo, Leif G. Anderson, Jeremy T. Mathis, Rik Wanninkhof, Dennis A. Hansell, Liqi Chen, Igor P. Semiletov

Research output: Chapter in Book/Report/Conference proceedingChapter

7 Citations (Scopus)

Abstract

While the infl ow of dissolved inorganic carbon (DIC) from the Pacific Ocean is relatively well quantifi ed, the intermittent input from the East Siberian Sea (ESS) is not. The export fl ux to the Atlantic Ocean has unknown uncertainty due to a paucity of DIC data from the Canadian Archipelago. Within the region, the Chukchi Sea is the dominant site for atmospheric carbon dioxide (CO2) uptake, while the Beaufort Sea and the Canadian Archipelago take-up much less CO2with latter potentially a weak source of CO2during certain times of the year. Additionally, the ESS shelf is a net source of CO2. Summertime CO2uptake capacity in the deep Canada Basin has increased greatly recently as sea-ice retreat progresses rapidly. The region appears to export more DIC than it receives by a small amount, suggesting that it is probably weakly net heterotrophic. In addition to labile organic carbon (OC) produced in the productive marginal seas, some riverine and coastal erosionderived OC likely is also recycled. As warming progresses, the Arctic Ocean may produce and export more DIC. Whether this change will turn the Arctic Ocean into a weaker CO2sink or even a CO2source for the atmosphere is uncertain and dependent on multiple factors that control the rate of surface water CO2increase versus the rate of the atmospheric CO2increase.

Original languageEnglish
Title of host publicationThe Pacific Arctic Region
Subtitle of host publicationEcosystem Status and Trends in a Rapidly Changing Environment
PublisherSpringer Netherlands
Pages199-222
Number of pages24
ISBN (Electronic)9789401788632
ISBN (Print)9789401788625
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint

dissolved inorganic carbon
carbon flux
archipelago
organic carbon
ice retreat
marginal sea
shelf sea
ocean
sea ice
warming
carbon dioxide
surface water
Arctic region
atmosphere
basin
sea
Arctic Ocean
rate

Keywords

  • Air-sea COflux
  • Arctic Ocean
  • Carbon cycle
  • DOC and DIC fl uxes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Cai, W. J., Bates, N. R., Guo, L., Anderson, L. G., Mathis, J. T., Wanninkhof, R., ... Semiletov, I. P. (2014). Carbon fluxes across boundaries in the pacific arctic region in a changing environment. In The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment (pp. 199-222). Springer Netherlands. https://doi.org/10.1007/978-94-017-8863-2_8

Carbon fluxes across boundaries in the pacific arctic region in a changing environment. / Cai, Wei Jun; Bates, Nicholas R.; Guo, Laodong; Anderson, Leif G.; Mathis, Jeremy T.; Wanninkhof, Rik; Hansell, Dennis A.; Chen, Liqi; Semiletov, Igor P.

The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment. Springer Netherlands, 2014. p. 199-222.

Research output: Chapter in Book/Report/Conference proceedingChapter

Cai, WJ, Bates, NR, Guo, L, Anderson, LG, Mathis, JT, Wanninkhof, R, Hansell, DA, Chen, L & Semiletov, IP 2014, Carbon fluxes across boundaries in the pacific arctic region in a changing environment. in The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment. Springer Netherlands, pp. 199-222. https://doi.org/10.1007/978-94-017-8863-2_8
Cai WJ, Bates NR, Guo L, Anderson LG, Mathis JT, Wanninkhof R et al. Carbon fluxes across boundaries in the pacific arctic region in a changing environment. In The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment. Springer Netherlands. 2014. p. 199-222 https://doi.org/10.1007/978-94-017-8863-2_8
Cai, Wei Jun ; Bates, Nicholas R. ; Guo, Laodong ; Anderson, Leif G. ; Mathis, Jeremy T. ; Wanninkhof, Rik ; Hansell, Dennis A. ; Chen, Liqi ; Semiletov, Igor P. / Carbon fluxes across boundaries in the pacific arctic region in a changing environment. The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment. Springer Netherlands, 2014. pp. 199-222
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