Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns
This study analyses a century-long set of precipitation time series in the Central Mediterranean (encompassing the Greek Ionian and the Italian Puglia regions) and investigates the statistically significant modes of the interannual precipitation variability using efficient methods of spectral decomp...
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Online Access: | http://hdl.handle.net/11589/118309 https://doi.org/10.1016/j.atmosres.2017.07.031 http://www.sciencedirect.com/science/article/pii/S0169809517302934 |
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ftpolitecnicbari:oai:iris.poliba.it:11589/118309 2024-04-14T08:16:02+00:00 Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns Kalimeris, Anastasios Ranieri, Ezio Founda, Dimitra Norrant, Caroline Kalimeris, Anastasio Ranieri, Ezio Founda, Dimitra Norrant, Caroline 2017 http://hdl.handle.net/11589/118309 https://doi.org/10.1016/j.atmosres.2017.07.031 http://www.sciencedirect.com/science/article/pii/S0169809517302934 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000413281000006 volume:198 firstpage:56 lastpage:80 numberofpages:25 journal:ATMOSPHERIC RESEARCH http://hdl.handle.net/11589/118309 doi:10.1016/j.atmosres.2017.07.031 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85027305486 http://www.sciencedirect.com/science/article/pii/S0169809517302934 Central Mediterranean Climatic variability pattern Precipitation variability Singular Spectrum Analysi Synchronization Wavelet analysi Atmospheric Science info:eu-repo/semantics/article 2017 ftpolitecnicbari https://doi.org/10.1016/j.atmosres.2017.07.031 2024-03-21T17:13:01Z This study analyses a century-long set of precipitation time series in the Central Mediterranean (encompassing the Greek Ionian and the Italian Puglia regions) and investigates the statistically significant modes of the interannual precipitation variability using efficient methods of spectral decomposition. The statistical relations and the possible physical couplings between the detected modes and the global or hemispheric patterns of climatic variability (the El Niño Southern Oscillation or ENSO, the North Atlantic Oscillation or NAO, the East Atlantic or EA, the Scandinavian or SCAND, and others) were examined in the time-frequency domain and low-order synchronization events were sought. Significant modes of precipitation variability were detected in the Taranto Gulf and the southern part of the Greek Ionian region at the sub-decadal scales (mostly driven by the SCAND pattern) and particularly at the decadal and quasi-decadal scales, where strong relations found with the ENSO activity (under complex implications of EA and NAO) prior to the 1930s or after the early-1970s. The precipitation variations in the Adriatic stations of Puglia are dominated by significant bi-decadal modes which found to be coherent with the ENSO activity and also weakly related with the Atlantic Ocean sea surface temperature intrinsic variability. Additionally, important discontinuities characterize the evolution of precipitation in certain stations of the Taranto Gulf and the Greek Ionian region during the early-1960s and particularly during the early-1970s, followed by significant reductions in the mean annual precipitation. These discontinuities seem to be associated with regional effects of NAO and SCAND, probably combined with the impact of the 1970s climatic shift in the Pacific and the ENSO variability. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) Pacific Atmospheric Research 198 56 80 |
institution |
Open Polar |
collection |
Politecnico di Bari: Iris POLIBA (Catalogo dei prodotti della Ricerca) |
op_collection_id |
ftpolitecnicbari |
language |
English |
topic |
Central Mediterranean Climatic variability pattern Precipitation variability Singular Spectrum Analysi Synchronization Wavelet analysi Atmospheric Science |
spellingShingle |
Central Mediterranean Climatic variability pattern Precipitation variability Singular Spectrum Analysi Synchronization Wavelet analysi Atmospheric Science Kalimeris, Anastasios Ranieri, Ezio Founda, Dimitra Norrant, Caroline Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns |
topic_facet |
Central Mediterranean Climatic variability pattern Precipitation variability Singular Spectrum Analysi Synchronization Wavelet analysi Atmospheric Science |
description |
This study analyses a century-long set of precipitation time series in the Central Mediterranean (encompassing the Greek Ionian and the Italian Puglia regions) and investigates the statistically significant modes of the interannual precipitation variability using efficient methods of spectral decomposition. The statistical relations and the possible physical couplings between the detected modes and the global or hemispheric patterns of climatic variability (the El Niño Southern Oscillation or ENSO, the North Atlantic Oscillation or NAO, the East Atlantic or EA, the Scandinavian or SCAND, and others) were examined in the time-frequency domain and low-order synchronization events were sought. Significant modes of precipitation variability were detected in the Taranto Gulf and the southern part of the Greek Ionian region at the sub-decadal scales (mostly driven by the SCAND pattern) and particularly at the decadal and quasi-decadal scales, where strong relations found with the ENSO activity (under complex implications of EA and NAO) prior to the 1930s or after the early-1970s. The precipitation variations in the Adriatic stations of Puglia are dominated by significant bi-decadal modes which found to be coherent with the ENSO activity and also weakly related with the Atlantic Ocean sea surface temperature intrinsic variability. Additionally, important discontinuities characterize the evolution of precipitation in certain stations of the Taranto Gulf and the Greek Ionian region during the early-1960s and particularly during the early-1970s, followed by significant reductions in the mean annual precipitation. These discontinuities seem to be associated with regional effects of NAO and SCAND, probably combined with the impact of the 1970s climatic shift in the Pacific and the ENSO variability. |
author2 |
Kalimeris, Anastasio Ranieri, Ezio Founda, Dimitra Norrant, Caroline |
format |
Article in Journal/Newspaper |
author |
Kalimeris, Anastasios Ranieri, Ezio Founda, Dimitra Norrant, Caroline |
author_facet |
Kalimeris, Anastasios Ranieri, Ezio Founda, Dimitra Norrant, Caroline |
author_sort |
Kalimeris, Anastasios |
title |
Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns |
title_short |
Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns |
title_full |
Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns |
title_fullStr |
Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns |
title_full_unstemmed |
Variability modes of precipitation along a Central Mediterranean area and their relations with ENSO, NAO, and other climatic patterns |
title_sort |
variability modes of precipitation along a central mediterranean area and their relations with enso, nao, and other climatic patterns |
publishDate |
2017 |
url |
http://hdl.handle.net/11589/118309 https://doi.org/10.1016/j.atmosres.2017.07.031 http://www.sciencedirect.com/science/article/pii/S0169809517302934 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000413281000006 volume:198 firstpage:56 lastpage:80 numberofpages:25 journal:ATMOSPHERIC RESEARCH http://hdl.handle.net/11589/118309 doi:10.1016/j.atmosres.2017.07.031 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85027305486 http://www.sciencedirect.com/science/article/pii/S0169809517302934 |
op_doi |
https://doi.org/10.1016/j.atmosres.2017.07.031 |
container_title |
Atmospheric Research |
container_volume |
198 |
container_start_page |
56 |
op_container_end_page |
80 |
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1796314574838824960 |