Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula

The North Atlantic Oscillation (NAO), the East Atlantic (EA) and the Scandinavian (SCAND) modes are the three main large-scale circulation patterns driving the climate variability of the Iberian Peninsula. This study assesses their influence in terms of solar (photovoltaic) and wind power generation...

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Main Authors: Sonia Jerez, Ricardo M Trigo
Format: Article
Language:English
Published: IOP Publishing 2013-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/8/4/044035
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author Sonia Jerez
Ricardo M Trigo
author_facet Sonia Jerez
Ricardo M Trigo
author_sort Sonia Jerez
collection DOAJ
description The North Atlantic Oscillation (NAO), the East Atlantic (EA) and the Scandinavian (SCAND) modes are the three main large-scale circulation patterns driving the climate variability of the Iberian Peninsula. This study assesses their influence in terms of solar (photovoltaic) and wind power generation potential (SP and WP) and evaluates their skill as predictors. For that we use a hindcast regional climate simulation to retrieve the primary meteorological variables involved, surface solar radiation and wind speed. First we identify that the maximum influence of the various modes occurs on the interannual variations of the monthly mean SP and WP series, being generally more relevant in winter. Second we find that in this time-scale and season, SP (WP) varies up to 30% (40%) with respect to the mean climatology between years with opposite phases of the modes, although the strength and the spatial distribution of the signals differ from one month to another. Last, the skill of a multi-linear regression model (MLRM), built using the NAO, EA and SCAND indices, to reconstruct the original wintertime monthly series of SP and WP was investigated. The reconstructed series (when the MLRM is calibrated for each month individually) correlate with the original ones up to 0.8 at the interannual time-scale. Besides, when the modeled series for each individual month are merged to construct an October-to-March monthly series, and after removing the annual cycle in order to account for monthly anomalies, these correlate 0.65 (0.55) with the original SP (WP) series in average. These values remain fairly stable when the calibration and reconstruction periods differ, thus supporting up to a point the predictive potential of the method at the time-scale assessed here.
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spelling doaj.art-d93c57509eaa436b86ab5c793c1ea53c2023-08-09T14:41:37ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018404403510.1088/1748-9326/8/4/044035Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian PeninsulaSonia Jerez0Ricardo M Trigo1IDL, Faculdade de Ciências, Universidade de Lisboa , Campo Grande, Building C8, 3rd Floor, Lisbon 1749-016, PortugalIDL, Faculdade de Ciências, Universidade de Lisboa , Campo Grande, Building C8, 3rd Floor, Lisbon 1749-016, PortugalThe North Atlantic Oscillation (NAO), the East Atlantic (EA) and the Scandinavian (SCAND) modes are the three main large-scale circulation patterns driving the climate variability of the Iberian Peninsula. This study assesses their influence in terms of solar (photovoltaic) and wind power generation potential (SP and WP) and evaluates their skill as predictors. For that we use a hindcast regional climate simulation to retrieve the primary meteorological variables involved, surface solar radiation and wind speed. First we identify that the maximum influence of the various modes occurs on the interannual variations of the monthly mean SP and WP series, being generally more relevant in winter. Second we find that in this time-scale and season, SP (WP) varies up to 30% (40%) with respect to the mean climatology between years with opposite phases of the modes, although the strength and the spatial distribution of the signals differ from one month to another. Last, the skill of a multi-linear regression model (MLRM), built using the NAO, EA and SCAND indices, to reconstruct the original wintertime monthly series of SP and WP was investigated. The reconstructed series (when the MLRM is calibrated for each month individually) correlate with the original ones up to 0.8 at the interannual time-scale. Besides, when the modeled series for each individual month are merged to construct an October-to-March monthly series, and after removing the annual cycle in order to account for monthly anomalies, these correlate 0.65 (0.55) with the original SP (WP) series in average. These values remain fairly stable when the calibration and reconstruction periods differ, thus supporting up to a point the predictive potential of the method at the time-scale assessed here.https://doi.org/10.1088/1748-9326/8/4/044035North Atlantic OscillationEast AtlanticScandinavian patternwind powersolar powerIberian Peninsula
spellingShingle Sonia Jerez
Ricardo M Trigo
Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula
Environmental Research Letters
North Atlantic Oscillation
East Atlantic
Scandinavian pattern
wind power
solar power
Iberian Peninsula
title Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula
title_full Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula
title_fullStr Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula
title_full_unstemmed Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula
title_short Time-scale and extent at which large-scale circulation modes determine the wind and solar potential in the Iberian Peninsula
title_sort time scale and extent at which large scale circulation modes determine the wind and solar potential in the iberian peninsula
topic North Atlantic Oscillation
East Atlantic
Scandinavian pattern
wind power
solar power
Iberian Peninsula
url https://doi.org/10.1088/1748-9326/8/4/044035
work_keys_str_mv AT soniajerez timescaleandextentatwhichlargescalecirculationmodesdeterminethewindandsolarpotentialintheiberianpeninsula
AT ricardomtrigo timescaleandextentatwhichlargescalecirculationmodesdeterminethewindandsolarpotentialintheiberianpeninsula