Search Results - "Gueymard, C. A"

Assessment of the Level-3 MODIS daily aerosol optical depth in the context of surface solar radiation and numerical weather modeling by Ruiz-Arias, J. A, Dudhia, J, Gueymard, C. A, Pozo-Vázquez, D

“…The daily Level-3 MODIS aerosol optical depth (AOD) product is a global daily spatial aggregation of the Level-2 MODIS AOD (10-km spatial resolution) into a…”
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Proposed reference irradiance spectra for solar energy systems testing by Gueymard, C.A., Myers, D., Emery, K.

“…In 1982, the American Society for Testing and Materials (ASTM) adopted consensus standard solar terrestrial spectra (ASTM E891-82, E892-82) to provide standard…”
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A simple parameterization of the short-wave aerosol optical properties for surface direct and diffuse irradiances assessment in a numerical weather model by Ruiz-Arias, J. A, Dudhia, J, Gueymard, C. A

“…Broadband short-wave (SW) surface direct and diffuse irradiances are not typically within the set of output variables produced by numerical weather prediction…”
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Detailed Assessment of Multiple‐Scattering Effects on Night‐Sky Brightness Modeling in Turbid Environments: The Impact of Truncation and Convergence Errors by Kocifaj, M., Wallner, S., Gueymard, C. A.

“…Detailed modeling of the night‐sky brightness (NSB) is needed to pinpoint environmental impacts caused by artificial light at night. This becomes progressively…”
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Technical Note: Improved total atmospheric water vapour amount determination from near-infrared filter measurements with sun photometers by Mavromatakis, F., Gueymard, C. A., Franghiadakis, Y.

“…In this work we explore the effect of the contribution of the solar spectrum to the recorded signal in wavelengths outside the typical 940-nm filter's…”
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Perspectives on the origin, derivation, meaning, and significance of the isotropic sky model by Kamphuis, N.R., Gueymard, C.A., Holtzapple, M.T., Duggleby, A.T., Annamalai, K.

“…•Origin and History of the Isotropic Sky Model.•Methods to derive the Isotropic Sky Model.•Identifies that the correct 3D geometry is a lune of a…”
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Is the average photon energy a unique characteristic of the spectral distribution of global irradiance? by Nofuentes, G., Gueymard, C.A., Aguilera, J., Pérez-Godoy, M.D., Charte, F.

“…•APE as a unique characteristic of spectrum is claimed by some authors.•Analysis uses two-year spectral irradiance datasets collected at two Spanish…”
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Evaluation of conventional and high-performance routine solar radiation measurements for improved solar resource, climatological trends, and radiative modeling by Gueymard, Christian A., Myers, Daryl R.

“…The solar renewable energy community depends on radiometric measurements and instrumentation for data to design and monitor solar energy systems, and develop…”
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Critical evaluation of precipitable water and atmospheric turbidity in Canada using measured hourly solar irradiance by Gueymard, Christian A., Garrison, John D.

“…Global and diffuse radiation and surface meteorological measurements at Edmonton, Montreal, Port Hardy, Toronto and Winnipeg for the years 1977–1984 are…”
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REST2: High-performance solar radiation model for cloudless-sky irradiance, illuminance, and photosynthetically active radiation – Validation with a benchmark dataset by Gueymard, Christian A.

“…REST2, a high-performance model to predict cloudless-sky broadband irradiance, illuminance and photosynthetically active radiation (PAR) from atmospheric data,…”
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Comment on ‘Variation of the luminous efficacy of direct, global and diffuse solar radiation with atmospheric parameters’ by A Pons, A Barrio and J Campos by Gueymard, CA

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Direct and indirect uncertainties in the prediction of tilted irradiance for solar engineering applications by Gueymard, Christian A.

“…Global radiation measured on fixed-tilt, south-facing planes (40° and vertical) and a 2-axis tracker at NREL’s Solar Radiation Research Lab. in Golden, CO is…”
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The sun’s total and spectral irradiance for solar energy applications and solar radiation models by Gueymard, Christian A.

“…Using the most recent composite time series of total solar irradiance spaceborne measurements, a solar constant value of 1366.1 W m −2 is confirmed, and simple…”
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Direct solar transmittance and irradiance predictions with broadband models. Part I: detailed theoretical performance assessment by Gueymard, Christian A.

“…A thorough investigation on the performance of broadband direct irradiance predictions using solar radiation models is detailed here. Nineteen models were…”
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Parameterized transmittance model for direct beam and circumsolar spectral irradiance by Gueymard, Christian A.

“…An upgraded spectral radiation model called SMARTS2 (Simple Model of the Atmospheric Radiative Transfer of Sunshine) is introduced. The solar shortwave direct…”
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Turbidity Determination from Broadband Irradiance Measurements: A Detailed Multicoefficient Approach by Gueymard, Christian A.

“…A physically modeled method is presented to obtain accurate turbidity determinations from broadband direct irradiance measurements. The method uses…”
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Direct solar transmittance and irradiance predictions with broadband models. Part II: validation with high-quality measurements by Gueymard, Christian A.

“…A thorough investigation of the performance of broadband direct irradiance predictions using 21 solar radiation models, along with carefully measured radiation…”
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Interdisciplinary applications of a versatile spectral solar irradiance model: A review by Gueymard, Christian A.

“…A detailed review of different applications that have already been investigated with SMARTS, a versatile spectral solar irradiance model, is proposed here…”
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Importance of atmospheric turbidity and associated uncertainties in solar radiation and luminous efficacy modelling by Gueymard, Christian A.

“…For many solar-related applications, it is important to separately predict the direct and diffuse components of irradiance or illuminance. Under clear skies,…”
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Reference luminous solar constant and solar luminance for illuminance calculations by Darula, Stan, Kittler, Richard, Gueymard, Christian A.

“…A recently proposed extraterrestrial solar spectrum is used to derive reference values of the luminous solar constant. Two slightly different photopic curves,…”
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