Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors
We introduce a novel technique in which linear regression analysis is applied to clusters of tracked cyclones to statistically assess the factors controlling cyclone development. We illustrate this technique by evaluating the differences between cyclones forming in the west and east North Atlantic (...
Published in: | Geophysical Research Letters |
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American Geophysical Union
2013
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ftunivreading:oai:centaur.reading.ac.uk:32921 2024-05-19T07:45:02+00:00 Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors Dacre, Helen F. Gray, Suzanne L. 2013-05-20 https://centaur.reading.ac.uk/32921/ unknown American Geophysical Union Dacre, H. F. <https://centaur.reading.ac.uk/view/creators/90000932.html> and Gray, S. L. <https://centaur.reading.ac.uk/view/creators/90000250.html> orcid:0000-0001-8658-362X (2013) Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors. Geophysical Research Letters, 40 (10). pp. 2322-2327. ISSN 0094-8276 doi: https://doi.org/10.1002/grl.50105 <https://doi.org/10.1002/grl.50105> Article PeerReviewed 2013 ftunivreading https://doi.org/10.1002/grl.50105 2024-04-24T00:11:11Z We introduce a novel technique in which linear regression analysis is applied to clusters of tracked cyclones to statistically assess the factors controlling cyclone development. We illustrate this technique by evaluating the differences between cyclones forming in the west and east North Atlantic (herein termed west and east Atlantic cyclones). Enhanced cyclone intensity 2 days after genesis is found to be associated with deeper upper-level troughs upstream of the cyclone center at the genesis time in both west and east Atlantic cyclones. However, whilst west Atlantic cyclones are also enhanced by the presence of strong fronts, east Atlantic cyclones are not. Instead, east Atlantic cyclones exhibit an enhancement when diabatically generated midlevel potential vorticity is present (with the enhancement being of approximately equal magnitude to that associated with the potential vorticity in the upper-level trough). This is consistent with the paradigm of latent heat release in the warm conveyor belt region playing an important role in the development of east Atlantic cyclones. Article in Journal/Newspaper North Atlantic CentAUR: Central Archive at the University of Reading Geophysical Research Letters 40 10 2322 2327 |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
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description |
We introduce a novel technique in which linear regression analysis is applied to clusters of tracked cyclones to statistically assess the factors controlling cyclone development. We illustrate this technique by evaluating the differences between cyclones forming in the west and east North Atlantic (herein termed west and east Atlantic cyclones). Enhanced cyclone intensity 2 days after genesis is found to be associated with deeper upper-level troughs upstream of the cyclone center at the genesis time in both west and east Atlantic cyclones. However, whilst west Atlantic cyclones are also enhanced by the presence of strong fronts, east Atlantic cyclones are not. Instead, east Atlantic cyclones exhibit an enhancement when diabatically generated midlevel potential vorticity is present (with the enhancement being of approximately equal magnitude to that associated with the potential vorticity in the upper-level trough). This is consistent with the paradigm of latent heat release in the warm conveyor belt region playing an important role in the development of east Atlantic cyclones. |
format |
Article in Journal/Newspaper |
author |
Dacre, Helen F. Gray, Suzanne L. |
spellingShingle |
Dacre, Helen F. Gray, Suzanne L. Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
author_facet |
Dacre, Helen F. Gray, Suzanne L. |
author_sort |
Dacre, Helen F. |
title |
Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
title_short |
Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
title_full |
Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
title_fullStr |
Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
title_full_unstemmed |
Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
title_sort |
quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors |
publisher |
American Geophysical Union |
publishDate |
2013 |
url |
https://centaur.reading.ac.uk/32921/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Dacre, H. F. <https://centaur.reading.ac.uk/view/creators/90000932.html> and Gray, S. L. <https://centaur.reading.ac.uk/view/creators/90000250.html> orcid:0000-0001-8658-362X (2013) Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors. Geophysical Research Letters, 40 (10). pp. 2322-2327. ISSN 0094-8276 doi: https://doi.org/10.1002/grl.50105 <https://doi.org/10.1002/grl.50105> |
op_doi |
https://doi.org/10.1002/grl.50105 |
container_title |
Geophysical Research Letters |
container_volume |
40 |
container_issue |
10 |
container_start_page |
2322 |
op_container_end_page |
2327 |
_version_ |
1799484961468710912 |