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Influence of sea surface temperature on the European heat wave of 2003 summer. Part I: an observational study |
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| Authors: | Laura Feudale Jagadish Shukla |
| Institution: | 1. The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151, Trieste, Italy 2. Center for Ocean-Land-Atmosphere Studies, Calverton, MD, USA 3. George Mason University, Fairfax, VA, USA 4. Institute of Global Environment and Society, Calverton, MD, USA |
| Abstract: | The heat wave affecting Europe during summer of 2003 is analyzed in detail with observational and reanalysis data. Surface, middle and upper troposphere analysis reveal particular circulation patterns related to an atmospheric blocking condition. In general seasonal anomalies, like this intense heat wave, are strongly related to boundary conditions. Composites and empirical orthogonal functions analysis provide evidence for an organized structure in the sea surface temperature (SST) anomaly field: high SSTs in the Mediterranean basin, the North Sea and further north toward the Arctic Circle were observed mainly in the months of June and August. The outcome of this analysis on observational data shows the SST as one of the possible factors in enhancing the heat wave in the European area. |
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