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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Publishing House of the Romanian Academy
2008-08-01
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| Series: | Journal of Numerical Analysis and Approximation Theory |
| Subjects: | |
| Online Access: | https://www.ictp.acad.ro/jnaat/journal/article/view/882 |
| _version_ | 1818197200344186880 |
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| author | Constantin Andronache Nicolae Suciu Călin Vamoş |
| author_facet | Constantin Andronache Nicolae Suciu Călin Vamoş |
| author_sort | Constantin Andronache |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-12T01:46:12Z |
| format | Article |
| id | doaj.art-eac54eacb3464208aedf416da2276c66 |
| institution | Directory Open Access Journal |
| issn | 2457-6794 2501-059X |
| language | English |
| last_indexed | 2024-12-12T01:46:12Z |
| publishDate | 2008-08-01 |
| publisher | Publishing House of the Romanian Academy |
| record_format | Article |
| series | Journal of Numerical Analysis and Approximation Theory |
| spelling | doaj.art-eac54eacb3464208aedf416da2276c662022-12-22T00:42:35ZengPublishing House of the Romanian AcademyJournal of Numerical Analysis and Approximation Theory2457-67942501-059X2008-08-01372On the multi-decadal oscillation of Atlantic tropical storm activityConstantin Andronache0Nicolae Suciu1Călin Vamoş2Boston CollegeTiberiu Popoviciu Institute of Numerical AnalysisTiberiu Popoviciu Institute of Numerical AnalysisLong 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.https://www.ictp.acad.ro/jnaat/journal/article/view/882time seriesquasi-periodicitytrendnon-stationarity |
| spellingShingle | Constantin Andronache Nicolae Suciu Călin Vamoş On the multi-decadal oscillation of Atlantic tropical storm activity Journal of Numerical Analysis and Approximation Theory time series quasi-periodicity trend non-stationarity |
| title | 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_short | On the multi-decadal oscillation of Atlantic tropical storm activity |
| title_sort | on the multi decadal oscillation of atlantic tropical storm activity |
| topic | time series quasi-periodicity trend non-stationarity |
| url | https://www.ictp.acad.ro/jnaat/journal/article/view/882 |
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