The relationship between diffuse and total radiation at the Solar and Ozone Observatory in Hradec Králové

Abstract

The daily and monthly data of the total radiation are used for estimation of the relationship between diffuse and total radiation in Hradec Králové. Analyses were expressed in parameters with the use of the method of least squares and a "Robust Locally Weighted Regression" (RLWR). Estimated equations were compared with previously known.

Keywords

• total radiation
• diffuse radiation
• diffuse fraction
• clearness index
• gesamtstrahlung
• diffusionsstrahlung