Waviness of the Southern Hemisphere wintertime polar and subtropical jets

to related objects

Abstract The recently developed average latitudinal displacement (ALD) methodology is applied to assess the waviness of the austral-winter subtropical and polar jets using three different reanalysis data sets. As in the wintertime Northern Hemisphere, both jets in the Southern Hemisphere have become systematically wavier over the time series and the waviness of each jet evolves quite independently of the other during most cold seasons. Also, like its Northern Hemisphere equivalent, the Southern Hemisphere polar jet exhibits no trend in speed (though it is notably slower), while its poleward shift is statistically significant. In contrast to its Northern Hemisphere counterpart, the austral subtropical jet has undergone both a systematic increase in speed and a statistically significant poleward migration. Composite differences between the waviest and least wavy seasons for each species suggest that the Southern Hemisphere's lower-stratospheric polar vortex is negatively impacted by unusually wavy tropopause-level jets of either species. These results are considered in the context of trends in the Southern Annular Mode as well as the findings of other related studies.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Waviness of the Southern Hemisphere wintertime polar and subtropical jets ; volume:4 ; number:4 ; year:2023 ; pages:875-886 ; extent:12
Weather and climate dynamics ; 4, Heft 4 (2023), 875-886 (gesamt 12)

Creator: Martin, Jonathan E.
Norton, Taylor

DOI: 10.5194/wcd-4-875-2023

URN: urn:nbn:de:101:1-2023102604313586620286

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 14.08.2025, 10:51 AM CEST

Data provider

This object is provided by:
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.

Show original at data provider

Associated

Martin, Jonathan E.
Norton, Taylor

Other Objects (12)

Waviness of the Southern Hemisphere wintertime polar and subtropical jets

Waviness of the Southern Hemisphere wintertime polar and subtropical jets

Is the subtropical jet shifting poleward?

Is the subtropical jet shifting poleward?

Wintertime

Wintertime

A New Index For The Wintertime Southern Hemispheric Split Jet

A New Index For The Wintertime Southern Hemispheric Split Jet

A climatology of wintertime low-level jets in Nares Strait

A climatology of wintertime low-level jets in Nares Strait

On the wintertime low bias of Northern Hemisphere carbon monoxide found in global model simulations

On the wintertime low bias of Northern Hemisphere carbon monoxide found in global model simulations

The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

Features of subseasonal concurrent variations between subtropical and polar front jets and their association with temperature anomalies in China

Features of subseasonal concurrent variations between subtropical and polar front jets and their association with temperature anomalies in China

The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere

The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere

Storytelling - it's wintertime

Lehrmittel

Storytelling - it's wintertime

Intraseasonal shift in the wintertime North Atlantic jet structure projected by CMIP6 models

Intraseasonal shift in the wintertime North Atlantic jet structure projected by CMIP6 models

Waviness of the Southern Hemisphere wintertime polar and subtropical jets

Waviness of the Southern Hemisphere wintertime polar and subtropical jets

Is the subtropical jet shifting poleward?

Is the subtropical jet shifting poleward?

Wintertime

Wintertime

A New Index For The Wintertime Southern Hemispheric Split Jet

A New Index For The Wintertime Southern Hemispheric Split Jet

A climatology of wintertime low-level jets in Nares Strait

A climatology of wintertime low-level jets in Nares Strait

On the wintertime low bias of Northern Hemisphere carbon monoxide found in global model simulations

On the wintertime low bias of Northern Hemisphere carbon monoxide found in global model simulations

The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

Features of subseasonal concurrent variations between subtropical and polar front jets and their association with temperature anomalies in China

Features of subseasonal concurrent variations between subtropical and polar front jets and their association with temperature anomalies in China

The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere

The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere

Storytelling - it's wintertime

Lehrmittel

Storytelling - it's wintertime

Intraseasonal shift in the wintertime North Atlantic jet structure projected by CMIP6 models

Intraseasonal shift in the wintertime North Atlantic jet structure projected by CMIP6 models

Waviness of the Southern Hemisphere wintertime polar and subtropical jets

Waviness of the Southern Hemisphere wintertime polar and subtropical jets

Is the subtropical jet shifting poleward?

Is the subtropical jet shifting poleward?

Wintertime

Wintertime

A New Index For The Wintertime Southern Hemispheric Split Jet

A New Index For The Wintertime Southern Hemispheric Split Jet

A climatology of wintertime low-level jets in Nares Strait

A climatology of wintertime low-level jets in Nares Strait

On the wintertime low bias of Northern Hemisphere carbon monoxide found in global model simulations

On the wintertime low bias of Northern Hemisphere carbon monoxide found in global model simulations

The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

The atmospheric responses to the intensity variability of subtropical front in the wintertime North Pacific

Features of subseasonal concurrent variations between subtropical and polar front jets and their association with temperature anomalies in China

Features of subseasonal concurrent variations between subtropical and polar front jets and their association with temperature anomalies in China

The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere

The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere

Storytelling - it's wintertime

Lehrmittel

Storytelling - it's wintertime

Intraseasonal shift in the wintertime North Atlantic jet structure projected by CMIP6 models

Intraseasonal shift in the wintertime North Atlantic jet structure projected by CMIP6 models

Cultural heritage institutions wishing to register will find more information here.

Fields marked * need to be filled in.

Username*

Please enter your username

Email*

Please enter your email address

Please do not fill this field

First name

Last name

Password*

Please enter your password

Confirm password*

Please enter the same password

I have read the terms of use and the privacy policy for the collection of personal data and accept them. *

This field is required.

I would like to subscribe to the newsletter of the Deutsche Digitale Bibliothek. See newsletter subscription info.

Account created

Your "My DDB" account has been successfully created. Before you can log in to your account, you must click the confirmation link in the message we just sent to the email address you provided.