Results 21 to 30 of about 11,778 (264)

Modeling the Effects of Global and Diffuse Radiation on Terrestrial Gross Primary Productivity in China Based on a Two-Leaf Light Use Efficiency Model

Remote Sensing, 2020
Solar radiation significantly affects terrestrial gross primary productivity (GPP). However, the relationship between GPP and solar radiation is nonlinear because it is affected by diffuse radiation.
Yanlian Zhou, Xiaocui Wu, Weimin Ju, Leiming Zhang, Zhi Chen, Wei He, Yibo Liu, Yang Shen   +7 more
doaj   +1 more source

Impact of aerosols on terrestrial gross primary productivity in North China using an improved boreal ecosystem productivity simulator with satellite-based aerosol optical depth

GIScience & Remote Sensing, 2020
Atmospheric aerosols can alter the direct and diffuse components of global solar radiation, which further influences terrestrial gross primary productivity (GPP) via photosynthesis.
Yao Feng, Dongmei Chen, Xinyi Zhao
doaj   +1 more source

Global radiation, photosynthetically active radiation, and the diffuse component dataset of China, 1981–2010 [PDF]

Earth System Science Data, 2018
Solar radiation, especially photosynthetically active radiation (PAR), is the main energy source of plant photosynthesis, and the diffuse component can enhance canopy light use efficiency, thus increasing ecosystem productivity.
X. Ren, H. He, H. He, L. Zhang, L. Zhang, G. Yu, G. Yu   +6 more
doaj   +1 more source

Calculated the diffuse and direct parts of global solar radiation in Baghdad city for the period (1983-2005) depending on clearness index by applying the two world models of Liu -Jordan

Iraqi Journal of Physics, 2019
In this paper solar radiation was studied over a region of Baghdad (Latitude 33.3o and longitude 44.4o). The two parts of global solar radiation: diffuse and direct solar radiation were estimated depending on the clearance index of measured data ...
Gheidaa Sabeeh Al-Hassany
doaj   +1 more source

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, Mitrowska Dorota, Chojnicki Bogdan H.   +2 more
doaj   +1 more source

Diffuse component of solar ultraviolet radiation in tree shade [PDF]

Journal of Photochemistry and Photobiology B: Biology, 2000
The first set of quantitative data of diffuse erythemal UV and UV-A radiation in tree shade at a sub-tropical Southern Hemisphere latitude is presented. Over the summer, approximately 60% of the erythemal UV radiation in tree shade is due to the diffuse component.
Parisi, Alfio V., Kimlin, Michael G., Wong, Joe C., Wilson, Meegan   +3 more
openaire   +3 more sources

Indoor Daylighting and Thermal Response of a Passive Solar Building to Selective Components of Solar Radiation

Buildings, 2021
Solar radiation provides the most significant natural energy in buildings for space heating and daylighting. Due to atmospheric interference, solar radiation received at the Earth’s surface consists of direct beam and diffuse radiation, where diffuse can
Ochuko Kelvin Overen, Edson Leroy Meyer, Golden Makaka   +2 more
doaj   +1 more source

Mathematical Assessment of Aerosol Impact on the Diffuse-to-Global Ratio of Solar UV Radiation

Mathematics
This study is devoted to investigating the effect of aerosols on solar UV radiation. In the ultraviolet range, scattering processes are dominant and lead to a substantial contribution of diffuse UV radiation to the global UV irradiance.
George Știrban, Eugenia Paulescu
doaj   +1 more source

Analysis and determination of the optimal collector array orientation characteristics in solar systems [PDF]

E3S Web of Conferences
This paper presents results analysis for the distribution of direct and diffuse solar radiation for a specific climatic zone in Bulgaria. The influence of the slope angle of the collector array over monthly solar radiation incident is studied and ...
Zlateva Merima, Totev Totyo, Kanev Dinko
doaj   +1 more source

The Use of Evolutionary Algorithms in the Modelling of Diffuse Radiation in Terms of Simulating the Energy Efficiency of Photovoltaic Systems

Energies, 2023
In light of the rapidly growing number of photovoltaic micro-grids, the modelling of their short-term power yields based on meteorological measurements is increasing in significance.
Wiktor Olchowik, Jędrzej Gajek, Andrzej Michalski   +2 more
doaj   +1 more source