Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.414
IF5.414
IF 5-year value: 5.958
IF 5-year
5.958
CiteScore value: 9.7
CiteScore
9.7
SNIP value: 1.517
SNIP1.517
IPP value: 5.61
IPP5.61
SJR value: 2.601
SJR2.601
Scimago H <br class='widget-line-break'>index value: 191
Scimago H
index
191
h5-index value: 89
h5-index89
Preprints
https://doi.org/10.5194/acp-2020-413
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2020-413
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  28 Jul 2020

28 Jul 2020

Review status
A revised version of this preprint was accepted for the journal ACP and is expected to appear here in due course.

Revisiting the trend in the occurrences of the warm Arctic-cold Eurasian continent temperature pattern

Lejiang Yu1,2, Shiyuan Zhong3, Cuijuan Sui4, and Bo Sun1 Lejiang Yu et al.
  • 1MNR Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai, China
  • 2Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, China
  • 3Department of Geography, Environment and Spatial Sciences, Michigan State University, East Lansing, MI, USA
  • 4National Marine Environmental Forecasting Center, Beijing, China

Abstract. 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. Here, we revisited surface-temperature variability over the Arctic and Eurasian continent by applying the Self-Organizing-Map (SOM) technique to gridded daily surface temperature data. Nearly 40 % of the surface temperature trends are explained by the nine SOM patterns that depict the switch to the current warm Arctic-cold Eurasia pattern at the beginning of this century from the reversed pattern that dominated the 1980s and the 90s. Further, no cause-effect relationship is found between the Arctic sea-ice loss and the cold spells in high-mid latitude Eurasian continent suggested by earlier studies. Instead, the increasing trend in warm Arctic-cold Eurasia pattern appears to be related to the anomalous atmospheric circulations associated with two Rossby wavetrains triggered by rising sea surface temperature (SST) over the central North Pacific and the North Atlantic Oceans. On 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 as represented by the Atlantic Multidecadal Oscillations (AMO), and over the central Pacific Ocean.

Lejiang Yu et al.

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Lejiang Yu et al.

Lejiang Yu et al.

Viewed

Total article views: 164 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
114 46 4 164 4 7
  • HTML: 114
  • PDF: 46
  • XML: 4
  • Total: 164
  • BibTeX: 4
  • EndNote: 7
Views and downloads (calculated since 28 Jul 2020)
Cumulative views and downloads (calculated since 28 Jul 2020)

Viewed (geographical distribution)

Total article views: 167 (including HTML, PDF, and XML) Thereof 166 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 21 Oct 2020
Publications Copernicus
Download
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 influencs the trend. On 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.
The recent increasing trend of warm Arctic, cold continents has attracted much attention, but it...
Citation
Altmetrics