Changing features of the Northern Hemisphere 500-hPa circumpolar vortex
The tropospheric circumpolar vortex (CPV), an important signature of processes steering the general atmospheric circulation, surrounds each pole and is linked to the surface weather conditions. The CPV can be characterized by its area and circularity ratio (Rc), which both vary temporally. This rese...
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ftdoajarticles:oai:doaj.org/article:122d0442dc36497b958f0187888ffe06 2023-05-15T15:04:19+02:00 Changing features of the Northern Hemisphere 500-hPa circumpolar vortex Nazla Bushra Robert V. Rohli Chunyan Li Paul W. Miller Rubayet Bin Mostafiz 2023-01-01T00:00:00Z https://doi.org/10.3389/fdata.2022.1009158 https://doaj.org/article/122d0442dc36497b958f0187888ffe06 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fdata.2022.1009158/full https://doaj.org/toc/2624-909X 2624-909X doi:10.3389/fdata.2022.1009158 https://doaj.org/article/122d0442dc36497b958f0187888ffe06 Frontiers in Big Data, Vol 5 (2023) tropospheric circumpolar vortex 500-mb flow patterns steering atmospheric circulation fast Fourier transform breakpoint analysis climate change Information technology T58.5-58.64 article 2023 ftdoajarticles https://doi.org/10.3389/fdata.2022.1009158 2023-01-15T01:27:39Z The tropospheric circumpolar vortex (CPV), an important signature of processes steering the general atmospheric circulation, surrounds each pole and is linked to the surface weather conditions. The CPV can be characterized by its area and circularity ratio (Rc), which both vary temporally. This research advances previous work identifying the daily 500-hPa Northern Hemispheric CPV (NHCPV) area, Rc, and temporal trends in its centroid by examining linear trends and periodic cycles in NHCPV area and Rc (1979–2017). Results suggest that NHCPV area has increased linearly over time. However, a more representative signal of the planetary warming may be the temporally weakening gradient which has blurred NHCPV distinctiveness—perhaps a new indicator of Arctic amplification. Rc displays opposing trends in subperiods and an insignificant overall trend. Distinct annual and semiannual cycles exist for area and Rc over all subperiods. These features of NHCPV change over time may impact surface weather/climate. Article in Journal/Newspaper Arctic Climate change Directory of Open Access Journals: DOAJ Articles Arctic Frontiers in Big Data 5 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
tropospheric circumpolar vortex 500-mb flow patterns steering atmospheric circulation fast Fourier transform breakpoint analysis climate change Information technology T58.5-58.64 |
spellingShingle |
tropospheric circumpolar vortex 500-mb flow patterns steering atmospheric circulation fast Fourier transform breakpoint analysis climate change Information technology T58.5-58.64 Nazla Bushra Robert V. Rohli Chunyan Li Paul W. Miller Rubayet Bin Mostafiz Changing features of the Northern Hemisphere 500-hPa circumpolar vortex |
topic_facet |
tropospheric circumpolar vortex 500-mb flow patterns steering atmospheric circulation fast Fourier transform breakpoint analysis climate change Information technology T58.5-58.64 |
description |
The tropospheric circumpolar vortex (CPV), an important signature of processes steering the general atmospheric circulation, surrounds each pole and is linked to the surface weather conditions. The CPV can be characterized by its area and circularity ratio (Rc), which both vary temporally. This research advances previous work identifying the daily 500-hPa Northern Hemispheric CPV (NHCPV) area, Rc, and temporal trends in its centroid by examining linear trends and periodic cycles in NHCPV area and Rc (1979–2017). Results suggest that NHCPV area has increased linearly over time. However, a more representative signal of the planetary warming may be the temporally weakening gradient which has blurred NHCPV distinctiveness—perhaps a new indicator of Arctic amplification. Rc displays opposing trends in subperiods and an insignificant overall trend. Distinct annual and semiannual cycles exist for area and Rc over all subperiods. These features of NHCPV change over time may impact surface weather/climate. |
format |
Article in Journal/Newspaper |
author |
Nazla Bushra Robert V. Rohli Chunyan Li Paul W. Miller Rubayet Bin Mostafiz |
author_facet |
Nazla Bushra Robert V. Rohli Chunyan Li Paul W. Miller Rubayet Bin Mostafiz |
author_sort |
Nazla Bushra |
title |
Changing features of the Northern Hemisphere 500-hPa circumpolar vortex |
title_short |
Changing features of the Northern Hemisphere 500-hPa circumpolar vortex |
title_full |
Changing features of the Northern Hemisphere 500-hPa circumpolar vortex |
title_fullStr |
Changing features of the Northern Hemisphere 500-hPa circumpolar vortex |
title_full_unstemmed |
Changing features of the Northern Hemisphere 500-hPa circumpolar vortex |
title_sort |
changing features of the northern hemisphere 500-hpa circumpolar vortex |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fdata.2022.1009158 https://doaj.org/article/122d0442dc36497b958f0187888ffe06 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_source |
Frontiers in Big Data, Vol 5 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fdata.2022.1009158/full https://doaj.org/toc/2624-909X 2624-909X doi:10.3389/fdata.2022.1009158 https://doaj.org/article/122d0442dc36497b958f0187888ffe06 |
op_doi |
https://doi.org/10.3389/fdata.2022.1009158 |
container_title |
Frontiers in Big Data |
container_volume |
5 |
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1766336109987495936 |