Clear-sky irradiance (CSI) modeling constitutes an essential component of the evaluation of
the solar resource at any location, and is involved in a large number of applications. In solar …

This study examines all known methods that have been proposed in the literature to identify
clear-sky periods in historical solar irradiance time series. Two different types of clear-sky …

The clear-sky radiative effect of aerosol–radiation interactions is of relevance for our
understanding of the climate system. The influence of aerosol on the surface energy budget …

Clear-sky detection (CSD) is a crucial process in numerous solar energy applications. Many
CSD models have been proposed over the years, though model performance is generally …

This chapter offers a description of the main factors that affect the transmission of solar
radiation through the cloudless atmosphere, and the corresponding modeling approaches …

Surface irradiance measurements with high temporal resolution can be used to detect clear
skies, which is a critical step for further study, such as aerosol and cloud radiative effects …

The global shift towards the utilization of renewable energy sources has driven the
development of photovoltaics (PVs) and the need for their mass integration in energy …

In this paper, we present two methods for the synthetic generation of 1-min Direct Normal
solar Irradiance (DNI) data from hourly means that can be applied globally without any local …

The overcast, partly cloudy and clear sky conditions can determine the diffuse sky radiance
and luminance distributions over the sky dome, and thus are crucial for evaluating the solar …

Abstract Clear-sky Direct Normal Irradiance (DNI) is the solar power received at ground level
per unit of area, at a specific location, under cloud-free conditions. Regarding Concentrating …