Results 11 to 20 of about 10,821 (160)
This study explores investigation of applicability of impact factors to estimate solar irradiance by four machine learning algorithms using climatic elements as comparative analysis: linear regression, support vector machines (SVM), a multi-layer neural ...
Jaehoon Cha +3 more
doaj +1 more source
The Korea Institute of Energy Research builds Korean solar irradiance datasets, using gridded solar insolation estimates derived using the University of Arizona solar irradiance based on Satellite–Korea Institute of Energy Research (UASIBS–KIER) model ...
Chang Ki Kim +5 more
doaj +1 more source
On the Fluctuations of the Total Solar Irradiance [PDF]
The fundamental quantity for the total solar irradiance is the solar constant J which is determined by the mean Sun-Earth distance and by the energy budget in the interior of the sun. The mean distance is the major semi-axis of the earth orbit and therefore a constant of celestial mechanics.
W. Schröder, H. J. Treder
openaire +1 more source
Version 2 of the TSIS‐1 Hybrid Solar Reference Spectrum and Extension to the Full Spectrum
This work describes two achievements to a key data set. First, we present version 2 of the Total and Spectral Solar Irradiance Sensor‐1 Hybrid Solar Reference Spectrum (TSIS‐1 HSRS), which has recently been recognized as a new solar irradiance reference ...
O. M. Coddington +8 more
doaj +1 more source
Solar irradiance in clear atmosphere: study of parameterisations of change with altitude [PDF]
Parameterisation of changes of the solar irradiance at ground level with a specific variable (e.g. solar zenithal angle, aerosol optical depth, altitude, etc.) is often used in operational processes because it saves computational time.
A. Oumbe +6 more
doaj +1 more source
An empirical model of global solar irradiance (EMGSI) under all sky conditions was developed by using solar radiation and meteorological parameters at Sodankylä.
Jianhui Bai, Anu Heikkilä, Xuemei Zong
doaj +1 more source
Aims. The existing records of total solar irradiance (TSI) since 1978 differ not only in absolute values, but also show different trends. For the study of TSI variability these records need to be combined and three composites have been devised; however ...
Fröhlich Claus
doaj +1 more source
A photovoltaic–electrolysis–PEM hybrid model was developed for a feasibility study, and simulations of several scenarios in Korea were performed. The solar irradiance was derived from the University of Arizona solar irradiance based on satellite–Korea ...
Chang Ki Kim +4 more
doaj +1 more source
Solar eclipses are astronomic phenomena in which the Earth’s moon transits between the planet and the Sun, projecting a shadow onto the planet’s surface.
Armando Castillejo-Cuberos +2 more
doaj +1 more source
Reconstruction of total solar irradiance 1974–2009 [PDF]
Context: The study of variations in total solar irradiance (TSI) is important for understanding how the Sun affects the Earth’s climate. Aims: Full-disk continuum images and magnetograms are now available for three full solar cycles. We investigate how modelled TSI compares with direct observations by building a consistent modelled TSI dataset.
Ball, WT +6 more
openaire +4 more sources

