Recovery of early meteorological records from Extremadura region (SW Iberia): The ‘CliPastExtrem’ (v1.0) database

Vaquero, José M.; Bravo-Paredes, Nieves; Muñoz, María Ángeles Obregón; Carrasco, V. M. S.; Valente, M. A.; Trigo, Ricardo M.; Domínguez‐Castro, Fernando; Montero‐Martín, Javier; Vaquero-Martínez, Javier; Antón, Manuel; García, José Álvarez; Gallego, M. C.

doi:10.1002/gdj3.131

Cited by 6 publications

(4 citation statements)

References 59 publications

(55 reference statements)

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“…This dataset covers the recent period 1997-2021 and can be found at https://datosclima.es/ (last access: last access: 4 July 2023; hereafter SF1997-2021). Finally, a monthly global paleoreanalysis (EKF400v2) generated to cover the 1600 and 2005 time period by Valler et al (2021) was used to make comparisons with the SF1799-1813 dataset.…”

Section: Data and Instrumentsmentioning

confidence: 99%

Earliest meteorological readings in San Fernando (Cádiz, Spain, 1799–1813)

et al. 2023

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Abstract. Cádiz and San Fernando are two towns close to each other with a wealth of meteorological records due to their connection with the Spanish Royal Navy officers and enlightened merchants. Several previous works have already recovered a significant number of meteorological records of interest in these localities. However, more than 40 000 daily meteorological observations recorded at the Royal Observatory of the Spanish Navy (located in San Fernando) during the period 1799–1813 were previously unnoticed; they remained neither digitized nor studied. Here, we have carried out this important task, describing the different steps undertaken to achieve it as well as the results obtained. The dataset is composed of different meteorological variables such as atmospheric pressure, air temperature, precipitation, and state of the sky. As a first step a quality control was carried out to find possible errors in the original data or in the digitization process. Moreover, the antique units were converted to modern units. Also, the metadata and an analysis of the data are described. The dataset is freely available to the scientific community and can be downloaded at https://doi.org/10.5281/zenodo.7104289.

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Section: Data and Instrumentsmentioning

confidence: 99%

Earliest meteorological readings in San Fernando (Cádiz, Spain, 1799–1813)

et al. 2023

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“…Attempts have been made to recover past meteorological data (Brönnimann et al, 2019; García‐Herrera et al, 2018). Literature on the Iberian Peninsula also provides old data from Spain (Domínguez‐Castro et al, 2014; Vaquero et al, 2020) and Portugal (Alcoforado et al, 2011). Specifically, some works have focused on the recovery of long series related to solar radiation in the Iberian Peninsula (Antón et al, 2014, 2017; Aparicio et al, 2019; Bravo‐Paredes et al, 2019; Montero‐Martín et al, 2021; Obregón et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of daily global solar radiation under all‐sky and cloud‐free conditions in Badajoz (Spain) since 1929

Montero‐Martín

Antón

Vaquero

et al. 2023

Intl Journal of Climatology

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This work analyses the long‐term temporal variability of the annual and seasonal series of reconstructed global solar radiation for both all‐sky and cloud‐free conditions in Badajoz (Spain) over the 1929–2015 period. Specifically, daily values of global horizontal irradiation (GHI) for all‐sky cases are derived from a semiempirical method based on the relationship between the cloud modification factor and sunshine duration records. Additionally, cloud‐free situations are selected using cloud cover (CC) information recorded by surface observations. Regarding GHI linear trends for all‐sky conditions, three periods are clearly identified: during the 1929–1950 period, there is a positive and statistically significant trend of +4.18 W·m−2·decade−1. It is followed by a significant dimming with a trend of −3.72 W·m−2·decade−1 between 1951 and 1984. GHI levels increase again from 1985 to 2015 with a statistically significant trend of +2.04 W·m−2·decade−1. The seasonal trends are found to be statistically significant only in summer for all the three subperiods. With the goal to find out the possible causes of the reconstructed GHI trends, the temporal variability of the CC was also analysed. It was observed that CC has a statistically significant negative trend between 1985 and 2015 which may partially explain the GHI increase shown for this period. In contrast, not statistically significant trends were found in the annual and seasonal CC series before 1985. The long‐term evolution of the GHI under cloud‐free conditions exhibits the same pattern as all‐sky conditions: an increase during 1929–1950, followed by a decrease in 1951–1984 and then a new increase from 1985 to 2015. Therefore, the positive (negative) linear trends in GHI reported in this study could be partially related to a decrease (increase) in the aerosol load during the analysed three subperiods.

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“…For example, Alcoforado et al [2] retrieved meteorological measurements from continental Portugal, Madeira Island and Rio de Janeiro (Brazil) for the period 1749-1802. Moreover, Farrona et al [3] recovered daily meteorological observations in Rio de Janeiro for the period 1781-1788, and Vaquero et al [4] retrieved more than 480,000 meteorological observations in Campo Maior for the period 1860-1939. Montero-Martín et al [5] recovered the earliest series known of sunshine duration in Coimbra and cloud cover records for the period 1894-1950.…”

Section: Introductionmentioning

confidence: 99%

Early Meteorological Observations in Almada (Portugal) for the Period 1788–1813 by Medical Doctors

Bravo-Paredes,

Gallego,

Trigo

et al. 2023

Climate

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Early meteorological observations have been found for the period 1788–1813 in a collection of historical documents entitled “Medical and meteorological observation books” (Livros de observações médicas e meteorológicas) that is preserved nowadays in the Municipal Historical Archive of Almada. Almada is a Portuguese city located on the southern bank of the Tagus River, near the mouth of the river, in front of the capital city of Lisbon, which is located on the northern bank. In this work, more than 5000 meteorological readings for the period 1788–1813 have been recovered and analyzed. Daily values have been preserved for the period 1788–1789. However, only monthly values have stood the test of time for the period 1792–1813. The meteorological variables recovered are temperature, pressure, wind direction and the state of the sky. A quality control was carried out to find possible errors, either in the original data or in the digitization process. Unfortunately, there is no information in the metadata about the instruments or the observational methodology. Pressure and temperature data from modern and reanalysis datasets were used as references to study the agreement between these datasets and the Almada dataset. Daily pressure and temperature values from the Almada dataset were used to study, in particular, the meteorological conditions of the winter of 1788/1789 in Almada because this season was one of the coldest in the last 300 years in Central Europe. The complete dataset of early meteorological observations in Almada is freely available to the scientific community.

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Recovery of early meteorological records from Extremadura region (SW Iberia): The ‘CliPastExtrem’ (v1.0) database

Cited by 6 publications

References 59 publications

Earliest meteorological readings in San Fernando (Cádiz, Spain, 1799–1813)

Earliest meteorological readings in San Fernando (Cádiz, Spain, 1799–1813)

Reconstruction of daily global solar radiation under all‐sky and cloud‐free conditions in Badajoz (Spain) since 1929

Early Meteorological Observations in Almada (Portugal) for the Period 1788–1813 by Medical Doctors

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