Por favor, use este identificador para citar o enlazar este ítem: https://hdl.handle.net/20.500.12008/56711

Título:

Sub-hour evaluation of global horizontal irradiance from the Physical Solar Model (PSM) including latitudes below 20°

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Autor:

Silvero, Ivan
Piccioli, Inti
Laguarda, Agustín
Abal, Gonzalo

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Preprint

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Palabras clave:

Solar radiation
PSM
National Solar Radiation Database
Global Horizontal Irradiance
South America

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Año de publicación:

2025

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Resumen:

Since 2018 the Physical Solar Model (PSM) used for generating solar irradiance estimates in the National Solar Radiation Database (NSRDB) provides estimates for the Americas with a maximum time resolution of 10 minutes and approximate spatial resolution of 4 x 4 km (latitude, longitude). The performance of this model at hour and sub-hour time intervals has not been evaluated beyond 20°S. This work provides performance indicators at the 10 and 60 min timescales for the Global Horizontal Irradiance (GHI) component of the model, using 4 years (2020-2023) of controlled quality 1 min data from four ground stations in Uruguay, located in latitudes between 30 and 35°S. Three sites of similar latitudes in the northern hemisphere from the SURFRAD network (United States) have also been included for comparative purposes. The results show small positive mean biases below 4% (for both time scales) at all but one site, and relative RMSD in the ranges 15 - 28% and 10-16% at the 10 minute and 60 minute timescales, respectively. These preliminary results confirm PSM as a useful tool for solar irradiance estimations at southern latitudes between 30 and 35°S.

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Silvero, I., Piccioli, I., Laguarda, A. y otros. Sub-hour evaluation of global horizontal irradiance from the Physical Solar Model (PSM) including latitudes below 20° [Preprint] Publicado en : ISES Solar World Congress 2025 (SWC2025) Proceedings. International Solar Energy Society. Nov. 3 - 7, 2025, Fortaleza, Brazil. doi://10.18086/swc.2025.04.46.

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Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
Attribution-NonCommercial-NoDerivatives 4.0 International

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Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
Excepto donde se indique lo contrario, la licencia de este ítem se describe como Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)