Marginal stability and predator–prey behaviour within storm tracks
A predator–prey relationship between storm track intensity and growth rate is revealed in reanalysis data of the North Atlantic and North Pacific, as well as in an idealized global circulation model with a zonally asymmetric heating dipole. Averaging in the phase space of these two quantities reveal...
Published in: | Quarterly Journal of the Royal Meteorological Society |
---|---|
Main Authors: | , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/qj.3014 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.3014 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3014 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3014 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3014 |
id |
crwiley:10.1002/qj.3014 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/qj.3014 2024-06-02T08:11:12+00:00 Marginal stability and predator–prey behaviour within storm tracks Novak, L. Ambaum, M. H. P. Tailleux, R. Natural Environment Research Council 2017 http://dx.doi.org/10.1002/qj.3014 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.3014 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3014 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3014 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3014 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Quarterly Journal of the Royal Meteorological Society volume 143, issue 704, page 1421-1433 ISSN 0035-9009 1477-870X journal-article 2017 crwiley https://doi.org/10.1002/qj.3014 2024-05-03T10:53:07Z A predator–prey relationship between storm track intensity and growth rate is revealed in reanalysis data of the North Atlantic and North Pacific, as well as in an idealized global circulation model with a zonally asymmetric heating dipole. Averaging in the phase space of these two quantities reveals that both quantities oscillate on approximately monthly time‐scales. These oscillations occur due to quasi‐periodic bursts in storm track activity that reduce excess baroclinicity and bring the flow back towards a state that is marginally stable to those bursts. Many detailed properties of these oscillations are reproduced well by a two‐dimensional dynamical system, especially in respect of the North Atlantic storm track which is more zonally constrained than that in the North Pacific. It is predicted and observed that on average stronger storm events occur less frequently but grow on a shorter time‐scale. The results suggest that nonlinearly oscillating behaviour around a state of baroclinic neutrality is a general feature of localized storm tracks, and they offer a new perspective on the study of baroclinic instability. Article in Journal/Newspaper North Atlantic Wiley Online Library Pacific Quarterly Journal of the Royal Meteorological Society 143 704 1421 1433 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A predator–prey relationship between storm track intensity and growth rate is revealed in reanalysis data of the North Atlantic and North Pacific, as well as in an idealized global circulation model with a zonally asymmetric heating dipole. Averaging in the phase space of these two quantities reveals that both quantities oscillate on approximately monthly time‐scales. These oscillations occur due to quasi‐periodic bursts in storm track activity that reduce excess baroclinicity and bring the flow back towards a state that is marginally stable to those bursts. Many detailed properties of these oscillations are reproduced well by a two‐dimensional dynamical system, especially in respect of the North Atlantic storm track which is more zonally constrained than that in the North Pacific. It is predicted and observed that on average stronger storm events occur less frequently but grow on a shorter time‐scale. The results suggest that nonlinearly oscillating behaviour around a state of baroclinic neutrality is a general feature of localized storm tracks, and they offer a new perspective on the study of baroclinic instability. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Novak, L. Ambaum, M. H. P. Tailleux, R. |
spellingShingle |
Novak, L. Ambaum, M. H. P. Tailleux, R. Marginal stability and predator–prey behaviour within storm tracks |
author_facet |
Novak, L. Ambaum, M. H. P. Tailleux, R. |
author_sort |
Novak, L. |
title |
Marginal stability and predator–prey behaviour within storm tracks |
title_short |
Marginal stability and predator–prey behaviour within storm tracks |
title_full |
Marginal stability and predator–prey behaviour within storm tracks |
title_fullStr |
Marginal stability and predator–prey behaviour within storm tracks |
title_full_unstemmed |
Marginal stability and predator–prey behaviour within storm tracks |
title_sort |
marginal stability and predator–prey behaviour within storm tracks |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/qj.3014 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.3014 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3014 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3014 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3014 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 143, issue 704, page 1421-1433 ISSN 0035-9009 1477-870X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/qj.3014 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
143 |
container_issue |
704 |
container_start_page |
1421 |
op_container_end_page |
1433 |
_version_ |
1800757254354370560 |