Ouazir Salem is a Higher Studies Diploma graduate in Physics (Radiation) from IBN Khaldoun University, Algeria, with extensive experience in both teaching and administrative roles. A dedicated professional, Ouazir excels in supporting students through lesson assignments, assisting in lab experiments, and contributing to daily lesson planning. He is skilled in statistical calculations, data analysis, and report preparation. Additionally, Ouazir provides technical support, manages teaching equipment, and supervises final exam procedures at Ajman University. He also assists in course registration, manages student-related tasks using the university system, and ensures smooth academic operations.
An accurate knowledge of the properties of solar radiation has a fundamental importance to study and to design solar energy systems. The clearness index plays a key factor in providing information about the transmitted solar radiation through the atmosphere compared to the extraterrestrial solar radiation. It plays a major role in understanding the meteorological phenomena, variations in the atmosphere, and sky conditions. However, the astronomical calculation requires a geographical consideration and precise measurement of the solar radiation. This study carried out an evaluation of the clearness index by applying mathematical approaches, a multiple linear regression function and a neural network approach, to the accumulated data of solar radiation, monthly temperature variation, humidity, and pressure of Dubai and Abu Dhabi meteorological stations in the United Arab Emirates. Keywords: Global solar radiation; Extraterrestrial Solar Radiation; meteorological parameter