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On the value of early marine weather observations: the Malaspina expedition (1789-94)



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Obregón, M.A. and Rodas, M.T. and Farrona, A.M.M. and Domínguez-Castro, F. and Gallego, M.C. and García Herrera, Ricardo and Vaquero, J. M. (2022) On the value of early marine weather observations: the Malaspina expedition (1789-94). Bulletin of the American Meteorological Society, 103 (7). E1684-E1695. ISSN 0003-0007

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Official URL: http://dx.doi.org/10.1175/BAMS-D-21-0051.1


Great advances in meteorological science were made in the late eighteenth century. In particular, meteorological instruments were carried on ships and the first systematic meteorological readings over the oceans were made. One of these collections of instrumental meteorological readings was carried out by the Malaspina expedition (1789–94), organized by the Spanish Crown to study its vast possessions around the world. We have recovered meteorological variables such as air temperature (maximum and minimum), atmospheric pressure (maximum and minimum), wind (intensity and direction), and appearance (state of the sky) from the documentation generated by the explorers during the journey. In total, nearly 13,000 instrumental data have been digitized and rescued from this maritime expedition. The comparison of daily temperature and pressure observations with reanalysis and weather stations data shows a good overall agreement. Moreover, apparent discrepancies during several anchored periods have allowed for testing the consistency and quality of these early instrumental marine weather readings.

Item Type:Article
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© 2022 American Meteorological Society. This research was supported by the Economy and Infrastructure Counselling of the Junta of Extremadura through Grant GR18097 (cofinanced by the European Regional Development Fund). The authors declare that they have no conflicts of interest.

Uncontrolled Keywords:Ships logbooks; Variability; Climate
Subjects:Sciences > Physics > Atmospheric physics
ID Code:75889
Deposited On:13 Mar 2023 08:17
Last Modified:13 Mar 2023 08:17

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