The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal

This paper summarizes the results from microclimatic monitoring of the impacts related to the construction and exploration phase of a hydroelectric powerplant in the upper Douro River (Portugal). Reference climatic elements for both periods were obtained and the impacts of the reservoir water mass o...

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Autores principales:	André Fonseca, João A. Santos
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	dam’s effect climate change humidity temperature trend analysis Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/8e680ccf0fdf4fbf98a9b1c39241a358
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spelling	oai:doaj.org-article:8e680ccf0fdf4fbf98a9b1c39241a3582021-11-25T16:44:07ZThe Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal10.3390/atmos121114002073-4433https://doaj.org/article/8e680ccf0fdf4fbf98a9b1c39241a3582021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1400https://doaj.org/toc/2073-4433This paper summarizes the results from microclimatic monitoring of the impacts related to the construction and exploration phase of a hydroelectric powerplant in the upper Douro River (Portugal). Reference climatic elements for both periods were obtained and the impacts of the reservoir water mass on the region’s microclimate were evaluated. For this purpose, Sen’s slope estimate non-parametric test was used to detect the meteorological variables’ trends over 10 years, considering the division into the construction (2011–2015) and exploration (2016–2020) phases. A network of meteorological stations located close to the dam, in addition to a control station relatively distant from the dam, was used to collect the meteorological data. The control station is still integrated into the same regional climatic context but not exposed to the direct influence of the resulting reservoirs. As a result, temporal differences were determined for temperature and relative humidity. The results show a statistically significant increase in the minimum relative humidity, accompanied by a statistically significant decrease in the daily and seasonal temperature amplitudes between the construction and the exploration phase periods. These outcomes thereby suggest that large reservoirs affect the local climate and may create new microclimates, in the surrounding area, with both positive and negative potential effects.André FonsecaJoão A. SantosMDPI AGarticledam’s effectclimate changehumiditytemperaturetrend analysisMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1400, p 1400 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dam’s effect climate change humidity temperature trend analysis Meteorology. Climatology QC851-999
spellingShingle	dam’s effect climate change humidity temperature trend analysis Meteorology. Climatology QC851-999 André Fonseca João A. Santos The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal
description	This paper summarizes the results from microclimatic monitoring of the impacts related to the construction and exploration phase of a hydroelectric powerplant in the upper Douro River (Portugal). Reference climatic elements for both periods were obtained and the impacts of the reservoir water mass on the region’s microclimate were evaluated. For this purpose, Sen’s slope estimate non-parametric test was used to detect the meteorological variables’ trends over 10 years, considering the division into the construction (2011–2015) and exploration (2016–2020) phases. A network of meteorological stations located close to the dam, in addition to a control station relatively distant from the dam, was used to collect the meteorological data. The control station is still integrated into the same regional climatic context but not exposed to the direct influence of the resulting reservoirs. As a result, temporal differences were determined for temperature and relative humidity. The results show a statistically significant increase in the minimum relative humidity, accompanied by a statistically significant decrease in the daily and seasonal temperature amplitudes between the construction and the exploration phase periods. These outcomes thereby suggest that large reservoirs affect the local climate and may create new microclimates, in the surrounding area, with both positive and negative potential effects.
format	article
author	André Fonseca João A. Santos
author_facet	André Fonseca João A. Santos
author_sort	André Fonseca
title	The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal
title_short	The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal
title_full	The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal
title_fullStr	The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal
title_full_unstemmed	The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal
title_sort	impact of a hydroelectric power plant on a regional climate in portugal
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8e680ccf0fdf4fbf98a9b1c39241a358
work_keys_str_mv	AT andrefonseca theimpactofahydroelectricpowerplantonaregionalclimateinportugal AT joaoasantos theimpactofahydroelectricpowerplantonaregionalclimateinportugal AT andrefonseca impactofahydroelectricpowerplantonaregionalclimateinportugal AT joaoasantos impactofahydroelectricpowerplantonaregionalclimateinportugal
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The Impact of a Hydroelectric Power Plant on a Regional Climate in Portugal

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