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  Amplified Arctic warming by phytoplankton under greenhouse warming

Park, J.-Y., Kug, J.-S., Bader, J., Rolph, R., & Kwon, M. (2015). Amplified Arctic warming by phytoplankton under greenhouse warming. Proceedings of the National Academy of Sciences of the United States of America, 112, 5921-5926. doi:10.1073/pnas.1416884112.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-1284-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-C68A-D
Genre: Journal Article

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 Creators:
Park, Jong-Yeon1, 2, Author              
Kug, J.-S., Author
Bader, Juergen1, Author              
Rolph, R., Author
Kwon, M., Author
Affiliations:
1Climate Dynamics, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society, ou_913568              
2IMPRS on Earth System Modelling, MPI for Meteorology, Max Planck Society, Bundesstraße 53, 20146 Hamburg, DE, ou_913547              

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 Abstract: Phytoplankton have attracted increasing attention in climate science due to their impacts on climate systems. A new generation of climate models can now provide estimates of future climate change, considering the biological feedbacks through the development of the coupled physical-ecosystem model. Here we present the geophysical impact of phytoplankton, which is often overlooked in future climate projections. A suite of future warming experiments using a fully coupled ocean-atmosphere model that interacts with a marine ecosystem model reveals that the future phytoplankton change influenced by greenhouse warming can amplify Arctic surface warming considerably. The warming-induced sea ice melting and the corresponding increase in shortwave radiation penetrating into the ocean both result in a longer phytoplankton growing season in the Arctic. In turn, the increase in Arctic phytoplankton warms the ocean surface layer through direct biological heating, triggering additional positive feedbacks in the Arctic, and consequently intensifying the Arctic warming further. Our results establish the presence of marine phytoplankton as an important potential driver of the future Arctic climate changes. © 2015, National Academy of Sciences. All rights reserved.

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Language(s): eng - English
 Dates: 2015-042015-05-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1073/pnas.1416884112
 Degree: -

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Title: Proceedings of the National Academy of Sciences of the United States of America
  Other : Proc. Natl. Acad. Sci. USA
Source Genre: Journal
 Creator(s):
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Publ. Info: National Academy of Sciences
Pages: - Volume / Issue: 112 Sequence Number: - Start / End Page: 5921 - 5926 Identifier: ISSN: 0027-8424
CoNE: https://pure.mpg.de/cone/journals/resource/954925427230