Articles | Volume 12, issue 1
Earth Syst. Dynam., 12, 121–132, 2021
https://doi.org/10.5194/esd-12-121-2021
Earth Syst. Dynam., 12, 121–132, 2021
https://doi.org/10.5194/esd-12-121-2021

Research article 02 Feb 2021

Research article | 02 Feb 2021

Synchronized spatial shifts of Hadley and Walker circulations

Kyung-Sook Yun et al.

Data sets

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

GPCP version 2.3 Combined Precipitation Data Set Physical Sciences Laboratory https://psl.noaa.gov/data/gridded/data.gpcp.html

CRU Time-Series (TS) version 4.03 of high-resolution gridded data of month-by-month variation in climate (Jan. 1901--Dec. 2018) University of East Anglia Climatic Research Unit https://doi.org/10.5285/10d3e3640f004c578403419aac167d82

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Short summary
Changes in the Hadley and Walker cells cause major climate disruptions across our planet. What has been overlooked so far is the question of whether these two circulations can shift their positions in a synchronized manner. We here show the synchronized spatial shifts between Walker and Hadley cells and further highlight a novel aspect of how tropical sea surface temperature anomalies can couple these two circulations. The re-positioning has important implications for extratropical rainfall.
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