Articles | Volume 21, issue 2
https://doi.org/10.5194/cp-21-593-2025
https://doi.org/10.5194/cp-21-593-2025
Research article
 | 
28 Feb 2025
Research article |  | 28 Feb 2025

Assessing the most severe subsistence crisis of the 18th century in the northwest of the Iberian Peninsula: a climatological perspective

Maite deCastro, José González-Cao, Nicolás G. deCastro, Juan J. Taboada, José M. Vaquero, and Moncho Gómez-Gesteira

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Cited articles

AEMET-IM: Iberian Climate Atlas, Agencia Estatal de Meteorología, Instituto de Meteorologia de Portugal, https://www.aemet.es/documentos/es/conocermas/recursos_en_linea/publicaciones_y_estudios/publicaciones/Atlas-climatologico/Atlas.pdf (last access: 20 February 2025), 2011. 
Alcoforado, M. J., Vaquero, J. M., Trigo, R. M., and Taborda, J. P.: Early Portuguese meteorological measurements (18th century), Clim. Past, 8, 353–371, https://doi.org/10.5194/cp-8-353-2012, 2012. 
Alexander, L. V. and Jones, P. D.: Updated precipitation series for the U.K. and discussion of recent extremes, Atmos. Sci. Lett., 1, 142–150, https://doi.org/10.1006/asle.2001.0025, 2001. 
Amorim, I., Sousa Silva, L. P., and Garcia, J. C.: As cheias do rio Douro no Porto (Portugal) do Século XVIII. Sémata: Ciencias Sociais E Humanidades, 29, https://doi.org/10.15304/s.29.4217, 2017. 
Ávila la Cueva, F.: Historia Civil y Eclesiástica de la Ciudad de Tuy y su Obispado, ISBN: 84-87172-02-4, 1852. 
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Short summary
Persistent rains in the eastern Atlantic during 1768–1769 caused the worst agricultural crisis in Galicia and northern Portugal. Using the EKF400v2 paleo-reanalysis dataset, it was found that the rainfall anomaly was positive in 11 out of 12 months. June 1768 saw the highest positive rain anomaly of the century; September 1768 saw the second-highest. The atmospheric synoptic patterns show negative anomalies in sea level pressure and 500 hPa. These patterns induce surface low-pressure systems.

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