Development of a standard classification system for climate crisis adaptation information: Part-Ⅱ. Configurations and efficiency

As extreme meteorological events intensify, effective climate adaptation strategies has become urgent. Climate adaptation requires significant resources across multiple sectors, necessitating reliable, science-based information. South Korea lacks a standard management system for adaptation information, with various scattered sectors. To address this, the Korean Climate Adaptation Information Taxonomy (KADT, NIER, 2023) was developed. This study enhances completeness and practicality of KADT by refining its structure and introducing an efficiency evaluation method. First, the Korea National Climate Risk completeness diagnostic system was improved to a four-step process, expanding 72 National Climate Risks into 118 sub-risks. The bottom-up CID-based classification system was subdivided into five Types, 14 Mid-Categories, and 29 Sub-Categories, using KMA and IPCC AR6 WG-1 standards. The top-down structure was improved, focusing on Sub-Categories: 1) Science-Based Information (SCI) reclassifies risk management targets into 40 Sub-categories; 2) Adaptation Solutions & Options (SOL) reorganized 226 tasks into four Sub-categories and 36 details; and 3) Policy Evaluation and Governance (PEV) classified 8,374 local measures into 12 Sub-categories and 108 details. To evaluate the efficiency of KADT, ISO/IEC 20926:2009(IFPUG FPA) was employed. Results showed that the KADT-based approach significantly reduces functional points compared to the manual approach, improving work efficiency by 50% to 120%. This study provides a refined framework for managing climate adaptation information in South Korea, enhancing risk assessment and adaptation planning at national and regional levels, fostering more effective strategies.