The reliance of insolation pattern towards Digital Terrain Model (DTM) characteristics in Perlis, Malaysia / Mohammad Azamuddin Mohd Nazan

Sun-derived energy has significantly aided humankind in developing advanced and emerging technology. Due to the Earth's enormous absorption of solar radiation energy, green technology is advancing at an increasing rate. The formation of an ambiguous insolation pattern, which serves as a starting point for additional research, results from the interaction of incoming solar radiation (insolation) with the state of the atmosphere and objects on the Earth's surface. In the context of global solar radiation, this study investigates the insolation pattern and ambiguities concerning digital terrain model (DTM) properties. Two (2) separate years, 2015 and 2022, will be used to model the properties of DTM. The monthly variations in the DTM's properties will allow us to track the insolation value. The Arc GIS environment will be used for all operations before the insolation pattern can be seen. The topography's slope and aspect influence insolation, which is the focus of this study. The study's principal outputs are the insolation map and graphs showing the relationship between insolation, slope characteristics, and aspect features. The results of this study aid the usefulness of the DTM in the analysis of its characteristics, such as slope and aspect, to determine the value of insolation in Perlis, Malaysia. Also, the topographic information derived from a DTM must be considered in this study since it plays a vital role in ups and down. The value of insolation depends on how the arrangement of topographical structures. Nevertheless, as findings depend on the DTM resolution, it is critical to consider additional elements like the albedo to get more accurate predictions. Hence, this study's information will help implement green building technology's sustainable practices.
Keywords: Insolation, slope, aspects