Early instrumental series can play a key role in the study of recent
climate change or assessments of specific extreme events. Unfortunately
in the Iberian Peninsula few series are available relative to the 18th
century. In this article we retrieved and make available the first daily
instrumental series obtained in Iberia. The observations were made in
Lisbon between 1 November 1724 and 11 January 1725 by Diogo Nunes
Ribeiro. While pressure and temperature values were registered twice a
day, the remaining variables, i.e. the state of the sky, wind direction
and force, have only one value per day. Despite the relatively short
period covered by this series, we were very fortunate to discover that
it helps to characterize one of the strongest storms that struck Lisbon
since the early 17th century. In particular, the data provide evidence
for an outstanding pressure drop of 28.61 hPa from 1010.76 hPa on the 18
November to just 982.15 hPa on the 19 November. Using recently
digitized pressure data for Lisbon since 1863, we can state that this 24
h decrease of surface pressure has been surpassed only once on the 28
November 1879. Moreover, the extreme winds associated with this "bomb"
affected severely the entire Lisbon area as well as large sections of
central and northern Portugal during the afternoon of 19 November and
caused important damage in the eastern coast of Madeira the night before
(18 November). This storm resembles the rare tropical storms that have
reached the Iberian Peninsula as a tropical storm (Vince 2005) or the
low intense hurricane that occurred in 1842.
4269: Polícia Marítima realiza ação de fiscalização conjunta em Olhão
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Os elementos do Comando-local da Polícia Marítima de Olhão realizaram esta
manhã, 24 de abril, uma ação de fiscalização conjunta com a Autoridade para
as...
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