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Article

Heating and Cooling Degree-Days Climate Change Projections for Portugal

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Natural Hazards Research Center (NHRC.ipt), Instituto Politécnico de Tomar, Estrada da Serra, Quinta do Contador, 2300-313 Tomar, Portugal
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Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, P.O. Box 1013, 5001-801 Vila Real, Portugal
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Politécnico de Leiria, Apartado 4133, 2411-901 Leiria, Portugal
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MED—Instituto Mediterrâneo para a Agricultura, Ambiente e Desenvolvimento, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
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INESC Coimbra, Department of Electrical Engineering and Computers, Rua Sílvio Lima, Polo II, 3030-290 Coimbra, Portugal
*
Author to whom correspondence should be addressed.
Academic Editors: Alexandra Monteiro, David Carvalho and Carla Gama
Atmosphere 2021, 12(6), 715; https://doi.org/10.3390/atmos12060715
Received: 22 April 2021 / Revised: 24 May 2021 / Accepted: 28 May 2021 / Published: 1 June 2021
(This article belongs to the Special Issue Climate Change and Air Pollution in Portugal)
Climate change is expected to influence cooling and heating energy demand of residential buildings and affect overall thermal comfort. Towards this end, the heating (HDD) and cooling (CDD) degree-days along with HDD + CDD were computed from an ensemble of seven high-resolution bias-corrected simulations attained from EURO-CORDEX under two Representative Concentration Pathways (RCP4.5 and RCP8.5). These three indicators were analyzed for 1971–2000 (from E-OBS) and 2011–2040, and 2041–2070, under both RCPs. Results predict a decrease in HDDs most significant under RCP8.5. Conversely, it is projected an increase of CDD values for both scenarios. The decrease in HDDs is projected to be higher than the increase in CDDs hinting to an increase in the energy demand to cool internal environments in Portugal. Statistically significant linear CDD trends were only found for 2041–2070 under RCP4.5. Towards 2070, higher(lower) CDD (HDD and HDD + CDD) anomaly amplitudes are depicted, mainly under RCP8.5. Within the five NUTS II regions projections revealed for 2041–2070 a decrease in heating requirements for Algarve and Lisbon Area higher in Faro, Lisboa and Setúbal whereas for North and Center regions results predicts an increase in cooling energy demand mainly in Bragança, Vila Real, Braga, Viana do Castelo, Porto and Guarda, higher under RCP8.5. View Full-Text
Keywords: heating degree-day (HDD); cooling degree-day (CDD); climate change; projections; energy demand of residential buildings; Portugal heating degree-day (HDD); cooling degree-day (CDD); climate change; projections; energy demand of residential buildings; Portugal
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MDPI and ACS Style

Andrade, C.; Mourato, S.; Ramos, J. Heating and Cooling Degree-Days Climate Change Projections for Portugal. Atmosphere 2021, 12, 715. https://doi.org/10.3390/atmos12060715

AMA Style

Andrade C, Mourato S, Ramos J. Heating and Cooling Degree-Days Climate Change Projections for Portugal. Atmosphere. 2021; 12(6):715. https://doi.org/10.3390/atmos12060715

Chicago/Turabian Style

Andrade, Cristina, Sandra Mourato, and João Ramos. 2021. "Heating and Cooling Degree-Days Climate Change Projections for Portugal" Atmosphere 12, no. 6: 715. https://doi.org/10.3390/atmos12060715

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