On the multi-decadal oscillation of Atlantic tropical storm activity
Long term Atlantic tropical storm activity is described by the time series of the yearly Accumulated Cyclone Energy (ACE) Index for the time interval 1851-2007. ACE is a measure of total wind energy for North Atlantic basin and land falling tropical cyclone activity. Since the ACE index reflects a c...
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ftdoajarticles:oai:doaj.org/article:eac54eacb3464208aedf416da2276c66 2023-05-15T17:32:54+02:00 On the multi-decadal oscillation of Atlantic tropical storm activity Constantin Andronache Nicolae Suciu Călin Vamoş 2008-08-01T00:00:00Z https://doaj.org/article/eac54eacb3464208aedf416da2276c66 EN eng Publishing House of the Romanian Academy https://www.ictp.acad.ro/jnaat/journal/article/view/882 https://doaj.org/toc/2457-6794 https://doaj.org/toc/2501-059X 2457-6794 2501-059X https://doaj.org/article/eac54eacb3464208aedf416da2276c66 Journal of Numerical Analysis and Approximation Theory, Vol 37, Iss 2 (2008) time series quasi-periodicity trend non-stationarity Mathematics QA1-939 article 2008 ftdoajarticles 2022-12-31T02:26:40Z Long term Atlantic tropical storm activity is described by the time series of the yearly Accumulated Cyclone Energy (ACE) Index for the time interval 1851-2007. ACE is a measure of total wind energy for North Atlantic basin and land falling tropical cyclone activity. Since the ACE index reflects a combination of storm intensity and duration it is a better measure of overall activity and likely damage than the number of either basin or land falling tropical storms or hurricanes. The yearly ACE time series is non-stationary, and one step toward detecting possible long-term quasi-periods is to detrend the original data. In this paper we use a procedure for data transformation by which ACE index is fitted in least square sense with polynomials of increasing order, followed by detrend. It is shown that, with some approximation, the obtained time series is cyclostationary, and a multi-decadal oscillation is detectable, as indicated by the power spectrum analysis. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
time series quasi-periodicity trend non-stationarity Mathematics QA1-939 |
spellingShingle |
time series quasi-periodicity trend non-stationarity Mathematics QA1-939 Constantin Andronache Nicolae Suciu Călin Vamoş On the multi-decadal oscillation of Atlantic tropical storm activity |
topic_facet |
time series quasi-periodicity trend non-stationarity Mathematics QA1-939 |
description |
Long term Atlantic tropical storm activity is described by the time series of the yearly Accumulated Cyclone Energy (ACE) Index for the time interval 1851-2007. ACE is a measure of total wind energy for North Atlantic basin and land falling tropical cyclone activity. Since the ACE index reflects a combination of storm intensity and duration it is a better measure of overall activity and likely damage than the number of either basin or land falling tropical storms or hurricanes. The yearly ACE time series is non-stationary, and one step toward detecting possible long-term quasi-periods is to detrend the original data. In this paper we use a procedure for data transformation by which ACE index is fitted in least square sense with polynomials of increasing order, followed by detrend. It is shown that, with some approximation, the obtained time series is cyclostationary, and a multi-decadal oscillation is detectable, as indicated by the power spectrum analysis. |
format |
Article in Journal/Newspaper |
author |
Constantin Andronache Nicolae Suciu Călin Vamoş |
author_facet |
Constantin Andronache Nicolae Suciu Călin Vamoş |
author_sort |
Constantin Andronache |
title |
On the multi-decadal oscillation of Atlantic tropical storm activity |
title_short |
On the multi-decadal oscillation of Atlantic tropical storm activity |
title_full |
On the multi-decadal oscillation of Atlantic tropical storm activity |
title_fullStr |
On the multi-decadal oscillation of Atlantic tropical storm activity |
title_full_unstemmed |
On the multi-decadal oscillation of Atlantic tropical storm activity |
title_sort |
on the multi-decadal oscillation of atlantic tropical storm activity |
publisher |
Publishing House of the Romanian Academy |
publishDate |
2008 |
url |
https://doaj.org/article/eac54eacb3464208aedf416da2276c66 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Numerical Analysis and Approximation Theory, Vol 37, Iss 2 (2008) |
op_relation |
https://www.ictp.acad.ro/jnaat/journal/article/view/882 https://doaj.org/toc/2457-6794 https://doaj.org/toc/2501-059X 2457-6794 2501-059X https://doaj.org/article/eac54eacb3464208aedf416da2276c66 |
_version_ |
1766131217690787840 |