Grape harvest dates as indicator of spring-summer mean maxima temperature variations in the Minho region (NW of Portugal) since the 19th century

Moreno, João; Fatela, Francisco; Moreno, Filipa; Leorri, Eduardo; Taborda, Rui; Trigo, Ricardo M.

doi:10.1016/j.gloplacha.2016.04.003

Cited by 13 publications

(7 citation statements)

References 75 publications

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“…The Minho region is located in the NW of Portugal and borders Galicia (Spain) in the north and the Atlantic Ocean. This region is characterized as having an Atlantic wet climate, with relatively high exposure to Atlantic Ocean winds, high annual precipitation (1000-2400 mm), and mild summers (summer mean temperatures from 18 to 22 • C) [31].…”

Section: Study Area Characteristicsmentioning

confidence: 99%

Large Scale Shrub Biomass Estimates for Multiple Purposes

Enes

Lousada

Fonseca

et al. 2020

Life

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With the increase of forest fires in Portugal in recent decades, a significant part of woodlands is being converted into shrubland areas. Background: From an ecological point of view, woodlands and shrublands play an essential role, as they not only prevent soil erosion and desertification, but also contribute to soil protection, habitat preservation and restoration, and also increased biodiversity for carbon sequestration. Concerning the shrublands, the assessment of their biomass is essential for evaluating the fuel load and forest fire behavior and also beneficial for obtaining estimates of carbon and biomass for energy use. Methods: In this study, we collected data about the potential shrub biomass accumulation along fifteen years in former burnt areas within North Portugal. Results: The achieved results showed that for a post-fire period ranging from one to 15 years, the accumulated shrubs’ biomass ranged from 0.12 up to 28.88 Mg ha−1. The model developed to estimate the shrub biomass using the time after a fire (age) as a predictor variable presented a high adjustment to data (p-value of the F statistic <0.01 and R2 = 0.89), allowing estimating shrub biomass regeneration within former burnt areas with an RMSE of 3.31 Mg ha−1. Conclusions: This paper provides practical information on the availability and assessment of shrub biomass in North Portugal, highlighting the suitability of shrubs as potential sources of biomass.

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Section: Study Area Characteristicsmentioning

confidence: 99%

Large Scale Shrub Biomass Estimates for Multiple Purposes

Enes

Lousada

Fonseca

et al. 2020

Life

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“…A further drought index reconstruction from the Czech Lands has been derived from series of grape harvest dates, which are normally used only for air temperature reconstructions (e.g. Chuine et al, 2004;Meier et al, 2007;Maurer et al, 2009;Moreno et al, 2016). The series created for the Bohemian wine-growing region (particularly north-west of Prague) since AD 1499 has been used not only for the reconstruction of April-August temperatures (Možný et al, 2016a), but also for the reconstruction of April-August SPEI (Možný et al, 2016b).…”

Section: (Iii) Drought Index Seriesmentioning

confidence: 99%

Documentary data and the study of the past droughts: an overview of the state of the art worldwide

Brázdil

Kiss

Luterbacher

et al. 2018

Preprint

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Abstract. The use of documentary evidence to investigate past climatic trends and events has become a recognised approach in recent decades. This contribution presents the state of the art in its application to droughts. The range of documentary evidence is very wide, including: general annals, chronicles, and memoirs, diaries kept by missionaries, travellers and those specifically interested in the weather, the records kept by administrators tasked with keeping accounts and other financial and economic records, legal-administrative evidence, religious sources, letters, marketplace and shopkeepers' songs, newspapers and journals, pictographic evidence, chronograms, epigraphic evidence, early instrumental observations, society commentaries, compilations and books, and historical-climatological databases. These come from many parts of the world. This variety of documentary information is evaluated with respect to the reconstruction of hydroclimatic conditions (precipitation, drought frequency and drought indices). Documentary-based drought reconstructions are then addressed in terms of long-term spatio-temporal fluctuations, major drought events, relationships with external forcing and large-scale climate drivers, socio-economic impacts and human responses. Documentary-based drought series are also discussed from the viewpoint of spatio-temporal variability for certain continents, and their employment together with hydroclimate reconstructions from other proxies (in particular tree-rings) is discussed. Finally, conclusions are drawn and challenges for the future use of documentary evidence in the study of droughts are presented.

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“…(2018) described an 1835–1850 slight trend of warming and a gradual staggered increase in mean annual temperature of ~1 °C after 1850 in Iberian mountains, while Moreno et al . (2016) reported a period of higher spring–summer (MAMJJA) mean maxima temperature (24.1 °C), between 1856 and c . 1875, in the Minho region.…”

Section: Discussionmentioning

confidence: 99%

Examining the role of solar activity, climate, and the socio‐historical context in high all‐cause mortality (northern Portugal, 1700–1880)

Moreno¹,

Moreno

Fatela

et al. 2021

Boreas

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The far‐reaching impact of the Sun on Earth's climate and on people's health and well‐being is a poorly understood and non‐consensual scientific issue, with empirical literature stressing the need to expand the knowledge of such relationships. Here, the interplay between solar activity (SA) and climate, and its likely cascading effects on all‐cause mortality, were examined at several time scales. To this end, the parish records of Braga (1700–1880) and Torre de Moncorvo (1700–1850), in two different geographical locations of northern Portugal (Iberia, SW Europe), were used. Crude mortality rate (CMR) and winter–summer ratio (W/S) values were computed to characterize mortality patterns/trends and couple them with potential relevant drivers: total solar irradiance (TSI) as a proxy of SA, the North Atlantic Oscillation (NAO), and key historical events. What emerged, albeit incomplete, was a complex picture of death deeply embedded in people’s physical and socioeconomic environments, at a time when ubiquitous poverty (and co‐morbid malnutrition) was the most inveterate cause of ill health. After identifying the positive mortality episodes in both municipalities, their incidence was found to be higher in periods of weakened SA (normal/grand minima). Standard inference statistics were used to estimate the significance of the observations. The highest CMR peaks matched not only with wars but also with known wide‐ranging mortality crises, which seem to have been triggered by major agricultural production shortfalls, followed by substantial increases in food prices, driven, in turn, by climate deterioration, including extreme weather occurrences. The outcome was social unrest, famines, and outbreaks of infectious diseases, heightening the death toll. The influence of prominent solar/climate variations was investigated using wavelet transform coherence analysis (WTC). The results showed (multi)decadal oscillations in both (TSI and NAO) somehow regulating mortality. But the WTC analysis also estimated SA signals in low‐frequency mortality dynamics disguised by time‐varying determinants, where distinct players of space weather might have been implicated.

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Grape harvest dates as indicator of spring-summer mean maxima temperature variations in the Minho region (NW of Portugal) since the 19th century

Cited by 13 publications

References 75 publications

Large Scale Shrub Biomass Estimates for Multiple Purposes

Large Scale Shrub Biomass Estimates for Multiple Purposes

Documentary data and the study of the past droughts: an overview of the state of the art worldwide

Examining the role of solar activity, climate, and the socio‐historical context in high all‐cause mortality (northern Portugal, 1700–1880)

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