Results 21 to 30 of about 172,315 (161)
The Sky-Status Climatology of Greece: Emphasis on Sunshine Duration and Atmospheric Scattering
Applied Sciences, 2022 The aim of this work is the study of the sky conditions climatology over Greece based on the diffuse-fraction (kd) limits, for clear, kd ∈ [0, 0.26]; intermediate, kd ∈ (0.26, 0.78); and overcast, kd ∈ (0.78, 1) skies.
Harry D. Kambezidis
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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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Effects of Air Pollution on Sunshine Duration Trends in Typical Chinese Cities
Atmosphere, 2022 Long-term trends in sunshine duration in Chinese cities have been closely linked to factors caused by air pollution. To understand this impact on sunshine duration (SD), surface solar radiation from 1981 to 2020, annual PM2.5 concentration from 2012 to ...
Wei Chong +5 more
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Computing diffuse fraction of global horizontal solar radiation: A model comparison
Solar Energy, 2012 Ardeshir Mahdavi, Sokol Dervishi
exaly +2 more sources
Boundary conditions for fractional diffusion [PDF]
Journal of Computational and Applied Mathematics, 2018 This paper derives physically meaningful boundary conditions for fractional diffusion equations, using a mass balance approach. Numerical solutions are presented, and theoretical properties are reviewed, including well-posedness and steady state solutions.
Boris Baeumer +3 more
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Fractional chemotaxis diffusion equations [PDF]
Physical Review E, 2010 We introduce mesoscopic and macroscopic model equations of chemotaxis with anomalous subdiffusion for modelling chemically directed transport of biological organisms in changing chemical environments with diffusion hindered by traps or macro-molecular crowding.
Langlands, T. A. M., Henry, B. I.
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Numerical methods for fractional diffusion [PDF]
Computing and Visualization in Science, 2018 We present three schemes for the numerical approximation of fractional diffusion, which build on different definitions of such a non-local process. The first method is a PDE approach that applies to the spectral definition and exploits the extension to one higher dimension.
Andrea Bonito +4 more
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Energies, 2022 For the various climatic zones of India, machine learning (ML) models are created in the current work to forecast monthly-average diffuse solar radiation (DSR).
Jawed Mustafa +4 more
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How to reconstruct aerosol-induced diffuse radiation scenario for simulating GPP in land surface models? An evaluation of reconstruction methods with ORCHIDEE_DFv1.0_DFforc [PDF]
Geoscientific Model Development, 2021 The impact of diffuse radiation on photosynthesis has been widely documented in field measurements. This impact may have evolved over time during the last century due to changes in cloudiness, increased anthropogenic aerosol loads over polluted regions ...
Y. Zhang +5 more
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Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2021 Introduction. This paper deals with the specific aspects of insolation of the terrestrial surface in the southern regions of Ukraine, namely the clearness index and diffuse fraction of the atmosphere.
Vasyl Zatula +3 more
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