Remote Sensing, 2022 To analyze the hyperspectral reflectance characteristics of rice canopies under changes in diffuse radiation fraction, experiments using different cover materials were performed in Nanjing, China, during 2016 and 2017.
Tao Zhang +5 more
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Effect of diffuse fraction on gross primary productivity and light use efficiency in a warm-temperate mixed plantation [PDF]
Frontiers in Plant Science, 2022 Diffuse radiation (If) is one of important variables determining photosynthetic rate and carbon uptake of forest ecosystems. However, the responses of gross primary productivity (GPP) and light use efficiency (LUE) to diffuse fraction (DF) are still ...
Peirong Liu +6 more
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Adaptive Neuro-Fuzzy Inference System and a Multilayer Perceptron Model Trained with Grey Wolf Optimizer for Predicting Solar Diffuse Fraction [PDF]
Entropy, 2020 The accurate prediction of the solar diffuse fraction (DF), sometimes called the diffuse ratio, is an important topic for solar energy research. In the present study, the current state of Diffuse irradiance research is discussed and then three robust ...
Randall Claywell +4 more
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Long-term variations in solar radiation, diffuse radiation, and diffuse radiation fraction caused by aerosols in China during 1961-2016. [PDF]
PLoS ONE, 2021 The effects of atmospheric aerosols on the terrestrial climate system are more regional than those of greenhouse gases, which are more global. Thus, it is necessary to examine the typical regional effects of how aerosols affect solar radiation in order ...
Hongfei Xie +3 more
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Modeling the erythemal surface diffuse irradiance fraction for Badajoz, Spain [PDF]
Atmospheric Chemistry and Physics, 2017 Despite its important role on the human health and numerous biological processes, the diffuse component of the erythemal ultraviolet irradiance (UVER) is scarcely measured at standard radiometric stations and therefore needs to be estimated.
G. Sanchez, A. Serrano, M. L. Cancillo
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Measurement and forecasting of the diffuse fraction of solar irradiance using a hybrid stacking model in Saudi Arabia [PDF]
Scientific ReportsAccurate quantification and robust predictive modeling of diffuse solar irradiance ratios are essential for optimizing photovoltaic (PV) system efficiency, particularly in regions characterized by pronounced climatic heterogeneity.
Haifa Harrouch +8 more
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Energies, 2017 We present a new model for the calculation of the diffuse fraction of the global solar irradiance for solar system simulations. The importance of an accurate estimation of the horizontal diffuse irradiance is highlighted by findings that an inaccurately ...
Martin Hofmann, Gunther Seckmeyer
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Effects of Topography and Geography on Solar Diffuse Fraction Modeling in Taiwan
AtmosphereA correlation model for the diffuse fraction was recently developed on the basis of a data set obtained in the western part of the Taiwanese mainland. However, it is widely agreed that no existing diffuse fraction correlation model is applicable to all ...
Chun-Tin Lin, Keh-Chin Chang
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Monthly average daily diffuse solar radiation in Poland within the period 2005–2015
ITM Web of Conferences, 2018 In this paper an 11-year series of daily values of diffuse solar radiation registered at 8 actinometric stations in Poland was used to describe the characteristics of diffuse radiation and diffuse fraction of global radiation for the area of Poland ...
Kleniewska Małgorzata +2 more
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Fractional diffusion maps [PDF]
Applied and Computational Harmonic Analysis, 2021 In this paper, we extend the diffusion maps algorithm on a family of heat kernels that are either local (having exponential decay) or nonlocal (having polynomial decay), arising in various applications. For example, these kernels have been used as a regularizer in various supervised learning tasks for denoising images.
Antil, Harbir +2 more
openaire +2 more sources