Revisiting the trend in the occurrences of the “warm Arctic–cold Eurasian continent” temperature pattern

Yu, Lejiang; Zhong, Shiyuan; Sui, Cuijuan; Sun, Bo

doi:https://doi.org/10.5194/acp-20-13753-2020

Articles | Volume 20, issue 22

https://doi.org/10.5194/acp-20-13753-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-13753-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 22

Research article

|

16 Nov 2020

Research article |

| 16 Nov 2020

Revisiting the trend in the occurrences of the “warm Arctic–cold Eurasian continent” temperature pattern

Lejiang Yu, Shiyuan Zhong, Cuijuan Sui, and Bo Sun

Data sets

Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1 D. J. Cavalieri, C. L. Parkinson, P. Gloersen, and H. J. Zwally https://nsidc.org/data/NSIDC-0051

ERA-Interim reanalysis data ECMWF https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim

Sea surface temperature data Hadley Centre for Climate Prediction and Research ftp://ftp.cdc.noaa.gov/Datasets/noaa.oisst.v2.highres/

Long-term SST data National Center for Atmospheric Research https://climatedataguide.ucar.edu/climate-data/noaa-20th-century-reanalysis-version-2-and-2c

Short summary

The recent increasing trend of "warm Arctic, cold continents" has attracted much attention, but it remains debatable as to what forces are behind this phenomenon. Sea surface temperature (SST) over the central North Pacific and the North Atlantic oceans influences the trend. On an interdecadal timescale, the recent increase in the occurrences of the warm Arctic–cold Eurasia pattern is a fragment of the interdecadal variability of SST over the Atlantic Ocean and over the central Pacific Ocean.