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Experimental study of ratio of PAR to direct integral solar radiation under cloudless conditions
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Determination of global and diffuse photosynthetically active radiation from a multifilter shadowband radiometer.
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A method to estimate the photosynthetically active radiation from multifilter shadowband radiometer (MFRSR) measurements was developed and tested from observations carried out on the island of Lampedusa and shows that global PAR irradiance may be estimated with an overall uncertainty of 4%-6%.
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[1] Using 15 months' worth of ground-based broadband and spectral radiation data at Xianghe, a suburban site in northern China, aerosol effects on surface irradiance are explored in this study.…
Quantum sensors for accurate and stable long-term photosynthetically active radiation observations
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Estimating photosynthetically active radiation at the earth's surface from MODIS data
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A new approach for PAR based on satellite algorithm is proposed in this study, which defines net surface PAR (NSPARSFC) as the attenuated downward PAR at the TOA for the effects of atmospheric molecular, cloud, aerosol, and albedo caused by surface BRDF.
On the stability of radiometric ratios of photosynthetically active radiation to global solar radiation in Tsukuba, Japan
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Analysis of photosynthetic photon flux density and its parameterization in Northern China
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Effects of cloud, atmospheric water vapor, and dust on photosynthetically active radiation and total solar radiation in a Mongolian grassland
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Photosynthetically active radiation (PAR) is an important input parameter for estimating plant produc- tivity due to its key role in the growth and development of plants. However, a worldwide routine…
Modelled and measured ratio of PAR to global radiation under cloudless skies
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Spectral composition and quanta‐to‐energy ratio of diffuse photosynthetically active radiation under diverse cloud conditions
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[1] Accurate and detailed modeling of vegetation photosynthesis and ecosystem-atmosphere CO2 exchange, particularly for forests, requires data on the diffuse and global fluxes of photosynthetically…
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