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oai:uvadoc.uva.es:10324/319222025-03-26T16:41:31Zcom_10324_1159com_10324_931com_10324_894col_10324_1310
UVaDOC author Mateos Villán, David author Sanchez Lorenzo, Arturo author Antón, Manuel author Cachorro Revilla, Victoria Eugenia author Calbó, Josep author Costa, Maria J author Torres, Benjamín author Wild, Martin 2018-09-29T08:47:22Z 2018-09-29T08:47:22Z 2014 J. Geophys. Res. Atmos., 119, 10,382–10,393, doi:10.1002/2014JD022076. http://uvadoc.uva.es/handle/10324/31922 10.1002/2014JD022076 10382 119 10393 Journal of Geophysical Research: Atmospheres The contribution of clouds and aerosols to the decadal variations of downward surface shortwave radiation (SSR) is a current controversial topic. This study proposes a method, which is based on surface-based SSR measurements, aerosol observations, and radiative transfer simulations (in cloud-free and cloud- and aerosol-free scenarios), to evaluate cloud-aerosol (CARE), cloud (CRE), and aerosol (ARE) radiative effects. This method is applied to quantify the role played by, separately, clouds and aerosols on the intense brightening of the SSR observed in the Iberian Peninsula. Clouds and Earth’s Radiation Energy Budget System (CERES) and surface-based data exhibit an increase in SSR between 2003 and 2012, exceeding +10 Wm 2 over this period for some areas of the peninsula. The calculations are performed for three surface-based sites: Barcelona and Valladolid (Spain), and Évora (Portugal). Ranges in monthly values of CARE, CRE, and ARE are ( 80, 20), ( 60, 20), and ( 30, 0), respectively (in Wm 2). The average trends for the analyzed period of CARE, CRE, and ARE are +7, +5, and +2 Wm 2 per decade, respectively. Overall, three fourths of the SSR trend is explained by clouds, while the other one fourth is related to aerosol changes. The SSR trends explained by the clouds and aerosol radiative effects are in line with the observed reductions in total cloud cover and aerosol load (both at the surface and in the whole atmospheric column). Furthermore, the CRE values are compared against CERES data showing good agreement between both data series, although some discrepancies are observed in their trends. eng Quantifying the respective roles of aerosols and clouds in the strong brightening since the early 2000s over the Iberian Peninsula info:eu-repo/semantics/article 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URL https://uvadoc.uva.es/bitstream/10324/31922/1/Quantifying_Mateos2014.pdf File MD5 44b43de41004952536bdfa4206b55d7e 1305165 application/pdf Quantifying_Mateos2014.pdf