Results 11 to 20 of about 1,095 (200)
, 2017 In the present study, we report the first comparison of the aerosol properties measured with sun photometer at Camaguey, Cuba, with the MODerate resolution Imaging Spectroradiometer (MODIS) instruments on Terra and Aqua satellites.
J. Antuña-Marrero +7 more
semanticscholar +2 more sources
Calibration campaigns for pyrheliometer and pyranometer
, 2016 Accurate measurements of solar irradiance are crucial for the planning, tests and operation of solar power plants. The measurement uncertainty caused by the calibration is the most relevant contribution to the overall uncertainty of well-maintained radiometers.
Nouri, B. +7 more
openaire +3 more sources
Applied Sciences, 2023 This paper compares the daily sunshine duration (SD) measured by the Campbell–Stokes sunshine recorder (CS) with three automatic instruments (Kipp & Zonen pyranometers (CM6 B), pyrheliometer (CHP1) and CSD3 sunshine recorders).
Stelios Pashiardis +2 more
doaj +1 more source
THE CHARACTERISTICS OF THE EPPLEY PYRHELIOMETER
Monthly Weather Review, 1941 Irving F Hand
exaly +2 more sources
Calibrated digital images of Campbell–Stokes recorder card archives for direct solar irradiance studies [PDF]
Atmospheric Measurement Techniques, 2013 A systematic, semi-automatic method for imaging the cards from the widely used Campbell–Stokes sunshine recorder is described. We show how the application of inexpensive commercial equipment and practices can simply and robustly build an archive of high ...
A. M. Horseman +5 more
doaj +1 more source
A solar irradiance estimation technique via curve fitting based on dual-mode Jaya optimization
Frontiers in Energy Research, 2023 Solar irradiance is a crucial environmental parameter for optimal control of photovoltaic (PV) systems. However, precise measurements of the solar irradiance are difficult since the irradiation sensors (i.e., pyranometer or pyrheliometer) are expensive ...
Ziqiang Bi +5 more
doaj +1 more source
Radiometric Scale Transfer Using Bayesian Model Selection
Proceedings, 2020 The key input quantity to climate modelling and weather forecasts is the solar beam irradiance, i.e., the primary amount of energy provided by the sun.
Donald W. Nelson, Udo von Toussaint
doaj +1 more source
Prediction of Circumsolar Irradiance and Its Impact on CSP Systems under Clear Skies
Energies, 2023 In this work, a model to estimate circumsolar normal irradiance (CSNI) for several half-opening angles under clear skies was developed. This approach used a look-up table to determine the model parameters and estimate CSNI for half-opening angles between
Edgar F.M. Abreu +2 more
doaj +1 more source
NREL Pyrheliometer Comparison: September 16 to 27, 2013 (NPC-2013) [PDF]
, 2013 Accurate measurements of direct normal (beam) solar irradiance from pyrheliometers are important for the development and deployment of solar energy conversion systems, improving our understanding of the Earth's energy budget for climate change studies ...
I. Reda, M. Dooraghi, A. Habte
semanticscholar +2 more sources