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Climate of the Past An interactive open-access journal of the European Geosciences Union

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Clim. Past Discuss., 7, 3895-3918, 2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
16 Nov 2011
Review status
This discussion paper has been under review for the journal Climate of the Past (CP). A final paper in CP is not foreseen.
Reconstruction of rainfall in Zafra (southwest Spain) from 1750 to 1840 from documentary sources
M. I. Fernández-Fernández1, M. C. Gallego1, F. Domínguez-Castro1, J. M. Vaquero1, J. M. Moreno González2, and J. Castillo Durán2
1Departamento de Física, Universidad de Extremadura, Spain
2Centro de Estudios del Estado de Feria, Zafra, Spain

Abstract. This work presents the first high-resolution reconstruction of rainfall in southwestern Spain during the period 1750–1840. The weather descriptions used are weekly reports describing the most relevant events that occurred in the Duchy of Feria. An index was defined to characterise the weekly rainfall. Monthly indices were obtained by summing the corresponding weekly indices, obtaining cumulative monthly rainfall indices. The reconstruction method consisted of establishing a linear correlation between the monthly rainfall index and monthly instrumental data (1960–1990). The correlation coefficients were greater than 0.80 for all months. The rainfall reconstruction showed major variability similar to natural variability. The reconstructed rainfall series in Zafra was compared with the rainfall series of Cadiz, Gibraltar and Lisbon for the period 1750–1840, with all four series found to have a similar pattern. The influence of the North Atlantic Oscillation (NAO) on the winter rainfall reconstruction was found to behave similarly to that of modern times. Other studies described are of the SLP values over the entire North Atlantic in the months with extreme values of rainfall, and unusual meteorological events (hail, frost, storms and snowfall) in the reports of the Duchy of Feria.

Citation: Fernández-Fernández, M. I., Gallego, M. C., Domínguez-Castro, F., Vaquero, J. M., Moreno González, J. M., and Castillo Durán, J.: Reconstruction of rainfall in Zafra (southwest Spain) from 1750 to 1840 from documentary sources, Clim. Past Discuss., 7, 3895-3918, doi:10.5194/cpd-7-3895-2011, 2011.
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