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Principal component and time series analysis of air-sea interactions in the "seas of the old world"
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119483.pdf
Date
2002
Author
Gündüz, Murat
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Climate data on surface atmospheric variables, sea surface temperature and computed air-sea fluxes are analysed to describe comparative surface climatolo gies of the 'Seas of the Old World' (Black, Caspian and Mediterranean Seas) and to investigate their interannual and interdecadal variability. Based on these analyses, differences and similarities between climates of these basins and their relationships to other global systems are identified. Empirical Orthogonal Function (EOF) Analysis is used to study spatial and temporal variability of surface climate data and air-sea flux components in the region of interest. The modes which account for the dominant parts of the vari ance are identified and the temporal and spatial features of these modes are examined. Correlations with climate indices characterizing neighboring or re mote climates such as the North Atlantic Oscillation (NAO), El-Nino Southern Oscillation (ENSO) and Monsoon regimes are investigated to determine linkages with other regional climates. The result of EOF analysis shows the relative influence of investigated climate patterns over the study region. NAO is the dominant pattern for the three seas, mthe influence of ENSO and Monsoon regimes were seen on the other modes. These results are significant as they confirm the linkage between the Euro- Asian- Mediterranean region and the North Atlantic Oscillation (NAO), also showing far-field influence of ENSO and the tropical dynamics on the study region.
Subject Keywords
Mediterranean Sea
,
Black Sea
,
Caspian Sea
,
Principal components
,
EOF
,
NAO
,
ENSO
URI
https://hdl.handle.net/11511/12677
Collections
Graduate School of Marine Sciences, Thesis
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M. Gündüz, “Principal component and time series analysis of air-sea interactions in the “seas of the old world”,” Middle East Technical University, 2002.