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Climate Dynamics

, Volume 43, Issue 12, pp 3449–3456 | Cite as

Polar Low genesis over the North Pacific under different global warming scenarios

  • Fei Chen
  • Hans von Storch
  • Lili Zeng
  • Yan Du
Article

Abstract

Following an earlier climatological study of North Pacific Polar Lows by employing dynamical downscaling of NCEP1 reanalysis in the regional climate model COSMO-CLM, the characteristics of Polar Low genesis over the North Pacific under different global warming scenarios are investigated. Simulations based on three scenarios from the Special Report on Emissions Scenarios were conducted using a global climate model (ECHAM5) and used to examine systematic changes in the occurrence of Polar Lows over the twenty first century. The results show that with more greenhouse gas emissions, global air temperature would rise, and the frequency of Polar Lows would decrease. With sea ice melting, the distribution of Polar Low genesis shows a northward shift. In the scenarios with stronger warming there is a larger reduction in the number of Polar Lows.

Keywords

Polar Lows North Pacific Regional climate model Downscale Greenhouse gas emission IPCC scenario 

Notes

Acknowledgments

This work is a contribution to the Helmholtz Climate Initiative REKLIM (Regional Climate Change), a joint research project of the Helmholtz Association of German Research Centers. We acknowledge the modeling groups, the Program for Climate Model Diagnosis and Intercomparison (PCMDI) and the WCRP’s Working Group on Coupled Modelling (WGCM) for their roles in making available the WCRP CMIP3 multi-model datasets. Support of these datasets is provided by the Office of Science, U.S. Department of Energy. The authors thank Beate Gardeike for preparing the diagrams. The technical and scientific support, and various comments and suggestions by Dr. Beate Geyer and Dr. Matthias Zahn have greatly improved this manuscript. This research was supported by the Chinese Scholarship Council (CSC), and by the Knowledge Innovation Project for Distinguished Young Scholar of The Chinese Academy of Sciences (No. KZCX2-EW-QN203).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Fei Chen
    • 1
    • 2
    • 3
  • Hans von Storch
    • 2
  • Lili Zeng
    • 3
  • Yan Du
    • 3
  1. 1.School of Civil and Environment EngineeringHarbin Institute of Technology Shenzhen Graduate SchoolShenzhenChina
  2. 2.Helmholtz-Zentrum GeesthachtGeesthachtGermany
  3. 3.South China Sea Institute of OceanologyChinese Academy of ScienceGuangzhouChina

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