Variations in MJO teleconnections on decadal time scales

Daniel Skinner; Adrian Matthews; David Stevens

doi:10.57757/IUGG23-0139

Abstract

The Madden-Julian Oscillation (MJO) is the leading mode of subseasonal variability in the tropics and is a key source of predictability for extratropical weather through its teleconnection patterns. Studies have shown that these teleconnection patterns can be modulated by the El Nino Southern Oscillation, however changes over decadal time scales and the response to anthropogenic climate change are less well understood. We use ERA5 reanalysis data to show that the boreal winter MJO teleconnection pattern in the Northern Hemisphere has changed in recent decades and provide mechanisms for these changes through alterations in the climatological mean state.

Original language	English
DOIs	https://doi.org/10.57757/IUGG23-0139
Publication status	Published - 15 Jul 2023
Event	28th General Assembly of the International Union of Geodesy and Geophysics - Berlin, Germany Duration: 11 Jul 2023 → 20 Jul 2023 https://www.iugg2023berlin.org/#

Conference

Conference	28th General Assembly of the International Union of Geodesy and Geophysics
Abbreviated title	IUGG 2023
Country/Territory	Germany
City	Berlin
Period	11/07/23 → 20/07/23
Internet address	https://www.iugg2023berlin.org/#

UN SDGs

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SDG 13 Climate Action

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10.57757/IUGG23-0139

Cite this

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title = "Variations in MJO teleconnections on decadal time scales",

abstract = "The Madden-Julian Oscillation (MJO) is the leading mode of subseasonal variability in the tropics and is a key source of predictability for extratropical weather through its teleconnection patterns. Studies have shown that these teleconnection patterns can be modulated by the El Nino Southern Oscillation, however changes over decadal time scales and the response to anthropogenic climate change are less well understood. We use ERA5 reanalysis data to show that the boreal winter MJO teleconnection pattern in the Northern Hemisphere has changed in recent decades and provide mechanisms for these changes through alterations in the climatological mean state.",

author = "Daniel Skinner and Adrian Matthews and David Stevens",

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doi = "10.57757/IUGG23-0139",

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note = "28th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2023 ; Conference date: 11-07-2023 Through 20-07-2023",

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TY - CONF

T1 - Variations in MJO teleconnections on decadal time scales

AU - Skinner, Daniel

AU - Matthews, Adrian

AU - Stevens, David

PY - 2023/7/15

Y1 - 2023/7/15

N2 - The Madden-Julian Oscillation (MJO) is the leading mode of subseasonal variability in the tropics and is a key source of predictability for extratropical weather through its teleconnection patterns. Studies have shown that these teleconnection patterns can be modulated by the El Nino Southern Oscillation, however changes over decadal time scales and the response to anthropogenic climate change are less well understood. We use ERA5 reanalysis data to show that the boreal winter MJO teleconnection pattern in the Northern Hemisphere has changed in recent decades and provide mechanisms for these changes through alterations in the climatological mean state.

AB - The Madden-Julian Oscillation (MJO) is the leading mode of subseasonal variability in the tropics and is a key source of predictability for extratropical weather through its teleconnection patterns. Studies have shown that these teleconnection patterns can be modulated by the El Nino Southern Oscillation, however changes over decadal time scales and the response to anthropogenic climate change are less well understood. We use ERA5 reanalysis data to show that the boreal winter MJO teleconnection pattern in the Northern Hemisphere has changed in recent decades and provide mechanisms for these changes through alterations in the climatological mean state.

UR - https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016398

U2 - 10.57757/IUGG23-0139

DO - 10.57757/IUGG23-0139

M3 - Abstract

T2 - 28th General Assembly of the International Union of Geodesy and Geophysics

Y2 - 11 July 2023 through 20 July 2023

ER -

Variations in MJO teleconnections on decadal time scales

Abstract

Conference

UN SDGs

Access to Document

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Activities

28th General Assembly of the International Union of Geodesy and Geophysics

Cite this