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1948, Smithsonian Institution publication, Volume 110, no. 11., 4
Book
1949, Smithsonian Institution publication, Volume 3991., 11
Book
1911, Smithsonian Institution publication, Volume 55, no. 19., 1 p. l., 20
Book
Nuncius, ISSN 0394-7394, 2018, Volume 33, Issue 2, pp. 345 - 371
Journal Article
Solar Energy, ISSN 0038-092X, 11/2015, Volume 121, pp. 123 - 130
•Improved methodology for normal incident solar radiation through a multi-pyranometer array.•The model for disaggregating beam and diffuse components is based... 
Anisotropic solar clear-sky model | Normal incident pyrheliometer | Multi-pyranometer array | BEAM | ENERGY & FUELS | MULTIPYRANOMETER INSTRUMENT | SOLAR-RADIATION | INSOLATION
Journal Article
Atmospheric Research, ISSN 0169-8095, 05/2020, Volume 235, p. 104766
Some works have reported variations in direct solar irradiance at surface with solar activity one order of magnitude higher than changes in total solar... 
Pyrheliometer | Solar activity | Atmospheric column transparency | Direct solar irradiance | Sunspot Number
Journal Article
1987, Russian translations series., ISBN 9061914973, x, 236
Book
1948, Smithsonian Institution publication, Volume 3920., 4
Book
1950, Technical bulletin, Volume 222., 153
Book
Global and Planetary Change, ISSN 0921-8181, 04/2014, Volume 115, pp. 71 - 75
A long-term decrease in downward surface solar radiation from the 1950s to the 1980s (“global dimming”) followed by a multi-decadal increase up to the present... 
early brightening | atmospheric transparency | pyrheliometer | direct solar radiation | Spain | Pyrheliometer | Atmospheric transparency | Direct solar radiation | Early brightening | Nuclear radiation | Physics - Atmospheric and Oceanic Physics
Journal Article
Atmospheric and Climate Sciences, ISSN 2160-0414, 2017, Volume 7, Issue 1, pp. 36 - 47
Shortwave radiometers such as pyranometers, pyrheliometers, and photovoltaic cells are calibrated with traceability to consensus reference, maintained by... 
photovoltaic cells | OTHER INSTRUMENTATION | pyrheliometer | pyranometer | pyrgeometer | solar | longwave irradiance | absolute cavity pyrheliometer | shortwave | SOLAR ENERGY | calibration | shortwave irradiance
Journal Article
Solar Energy, ISSN 0038-092X, 07/2018, Volume 168, pp. 44 - 59
•We present an in-depth review of pyrheliometer calibration standard protocols.•Harmonization of the ISO and ASTM standards is proposed.•The proposed procedure... 
Solar radiation measurements | Pyrheliometer | Solar irradiance | Calibration | Standardization | Solar energy | ENERGY & FUELS | Weather | Analysis
Journal Article
Atmospheric Research, ISSN 0169-8095, 03/2019, Volume 217, pp. 165 - 171
The behavior of the surface solar radiation (SSR) during the first half of 20th century is an open issue due to the scarcity of SSR data during this period.... 
Early dimming | Pyrheliometer | Atmospheric transparency | Direct solar radiation | Early brightening | Spain | RECONSTRUCTION | 20TH-CENTURY | SUNSHINE DURATION | GLOBAL RADIATION | VARIABILITY | IRRADIANCE | TIME-SERIES | METEOROLOGY & ATMOSPHERIC SCIENCES | LONG-TERM CHANGES | SURFACE SOLAR-RADIATION | ALL-SKY | Analysis | Radiation
Journal Article
Solar Energy, ISSN 0038-092X, 11/2017, Volume 157, pp. 157 - 170
Highly spatially and temporally resolved solar irradiance maps are of special interest for predicting ramp rates and for optimizing operations in solar power... 
Shadow camera system | Solar forecasting | Integration of renewable energies | MODELS | ENERGY & FUELS | CLOUD | SKY-IMAGER | CLASSIFICATION | TURBIDITY | TRANSMITTANCE | Solar power plants | Solar energy | Engineering Sciences | domain_spi.energ
Journal Article
Renewable and Sustainable Energy Reviews, ISSN 1364-0321, 08/2014, Volume 36, pp. 26 - 33
Sunshine duration can be estimated using photovoltaic solar cells instead of conventional pyranometers or pyrheliometers, which are more expensive and... 
Pyrheliometer | Pyranometer | Global irradiance | Sunshine duration | Low cost | Photovoltaic solar cell | SODIS | ENERGY & FUELS | PERFORMANCE | WATER DISINFECTION | Measurement | Silicon | Algorithms | Solar energy industry | Analysis
Journal Article
Renewable Energy, ISSN 0960-1481, 01/2019, Volume 130, pp. 182 - 190
This work proposes a new empirical direct methodology to estimate both the solar flux distribution and intensity on the surface of central receivers. In solar... 
Solar power tower | Incident solar flux | Heliostat | Digital image analysis | GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | ENERGY & FUELS | FIELD | TRACKING | TOWER | MEASUREMENT SYSTEM | Numerical analysis | Solar power plants | Analysis | Solar energy | Green technology | Sensors | Methods | Engineering Sciences | Chemical and Process Engineering
Journal Article
Renewable Energy, ISSN 0960-1481, 12/2016, Volume 99, pp. 754 - 763
The present paper deals with atmospheric corrections factors proposed as a function of the atmospheric transmissivity in order to correct the diffuse solar... 
Measuring methods | Diffuse radiation | Sky cover | Shadowring | Anisotropy | VERTICAL SURFACES | ILLUMINANCE | GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY | ENERGY & FUELS | PERFORMANCE | BRAZIL | MODELS | RING CORRECTION | PHOTOSYNTHETICALLY-ACTIVE RADIATION | Measurement | Analysis | Methods | Radiation
Journal Article
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