Título:
One-minute assessment of photosynthetic active solar radiation (PAR) models in Uruguay.
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Autor:
Di Laccio, José Luis
Alonso-Suárez, Rodrigo
Abal, Gonzalo
Alonso-Suárez, Rodrigo
Abal, Gonzalo
Tutor:
Tipo de documento:
Preprint
Editor:
Palabras clave:
PAR radiation
PAR fraction
Empirical models
GHI
PAR fraction
Empirical models
GHI
Descriptores:
Año de publicación:
2021
Contenido:
Resumen:
Photosynthetically Active Radiation (PAR) is the spectral portion of global solar radiation
(between 400 and 700 nm) relevant to a plant's growth processes. The PAR fraction (fp) is the
ratio at horizontal surface between the photon’s flux per square meter (Qp) and the global
solar irradiance (Gh). In this work, the first assessment in Uruguay of PAR fraction empirical
models is presented using 4 years of 1-minute measured data for one site representative of
the Pampa Húmeda region. The chosen models have been developed for the 1-hour time
scale and use the clearness index and/or the solar altitude as predictive variables. Original
and locally adjusted versions of these models are evaluated and compared with the utilization
of a constant value for PAR fraction (frequently used in agronomical practice). It is found
that polynomial kt models with original coefficients have acceptable performance, but they
cannot be used with locally adjusted coefficients at the 1-minute timescale.
Descripción:
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Editorial:
ISES
EN:
Proceedings of the ISES Solar World Congress 2021, Alemania (Congreso Virtual), 25-29 de Octubre, 2021.
Financiadores:
Citación:
Di Laccio, J, Alonso-Suárez, R y Abal, G. One-minute assessment of photosynthetic active solar radiation (PAR) models in Uruguay. [Preprint] Publicado en: Proceedings of the ISES Solar World Congress 2021, Alemania (Congreso Virtual), 25-29 de Octubre, 2021.
Citación:
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Cobertura geográfica:
Uruguay.
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Licencia:
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
Colecciones:
| Ficheros | Descripción | Tamaño | Formato | ||
|---|---|---|---|---|---|
| DAA21.pdf | Preprint | 586.91 KB | Adobe PDF |