An article by researchers from the Department of Civil and Environmental Engineering at the School of Engineering and Digital Sciences (SEDS), Nazarbayev University, titled "Enhancing the Accuracy of Climate Zoning for Buildings through Precise Climate Variables Selection and a Novel Misclassification Index," has been published in the Journal of Building Engineering, the world's top-ranked journal in the field of architecture.
The research introduces an advanced framework for climate zoning that addresses the limitations of existing methods. By integrating machine learning and spatial analysis techniques, the framework generates highly accurate and practical climate maps. Key climate factors, such as temperature and humidity, are identified, and clustering methods are used to group regions with similar climates.
A major innovation of this study is the introduction of the Climate Zoning Misclassification Index (CZMI), a tool designed to assess the accuracy of climate zones and measure the degree of overlap in energy needs between them. The goal is to create clearly defined, non-overlapping zones, thereby reducing energy inefficiencies in building design.
The application of this framework in Kazakhstan produced significantly improved results compared to existing climate maps. Current official maps and international standards, such as the ASHRAE climate map, were found to have overlapping zones, which can result in inefficient building designs and higher energy consumption. In contrast, the newly developed method established zones with distinct boundaries, enabling more precise architectural and engineering solutions.
The findings of this research have implications beyond Kazakhstan. The framework offers a scalable solution that can be adapted for use in other regions and countries, supporting global efforts to promote sustainable development in the building and construction sectors. By advancing climate zoning techniques, this research paves the way for more energy-efficient building practices and policy development, contributing to a sustainable built environment worldwide.
This research is part of a grant-funded project for scientific and technical research for 2024–2026, supported by the Ministry of Science and Higher Education of the Republic of Kazakhstan. The project, titled "Development of Building-Performance-Based Climate Maps of Kazakhstan," is led by Professor and Acting Vice Dean for Research of SEDS, Dr. Shazim Ali Memon, along with key contributions from Postdoctoral Researcher Alexey Remizov and other members of the research team.