Solar energy paper index
Uncertainty in wind and solar projections in the Alpine region depends on global and regional climate models
One-line summary
A solar energy research paper on Uncertainty in wind and solar projections in the Alpine region depends on global and regional climate models.
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Chinese explanation / 中文解读
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Original abstract
Abstract Ensembles of regional–global climate model combinations show substantial spread in projected wind and solar resources. Using 31 RCM–GCM pairs, we quantify the sources of this spread with a spatially and seasonally resolved variance decomposition, separating contributions from RCMs and GCMs. For both wind speed and solar radiation, RCMs dominate the variability in the absolute historical fields. In contrast, projected changes in wind speed are largely controlled by the driving GCMs, except in mountainous regions where RCM-induced variance becomes larger than that induced by GCMs. For solar radiation, contributions are strongly season-dependent, with RCMs dominating in summer and GCMs in winter. Our findings support that GCM and RCM variability together define the uncertainty of wind and solar climate projections. This provides guidance for designing climate model ensembles that better support uncertainty-aware energy system decisions under climate change.
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