탄소중립을 위한 하향식 온실가스 배출 분석기법 개발 및 활용 방안

It is crucial to estimate the greenhouse gas emissions accurately to manage the global climate crisis. In this regard the World Meteorological Organization (WMO) recommended its member countries to develop the Integrated Global Greenhouse Gas Information System (IG³IS) as a new approach to estimate greenhouse gas emissions based on atmospheric measurements and numerical weather prediction model. Furthermore, 2019 refinement to the 2006 IPCC guideline for national greenhouse gas inventories includes the IG³IS as an independent process of quality assurance, quality control and verification of greenhouse gas emissions to supplement traditional bottom-up method. In these circumstances, Korea Meteorological Administration launched WMO endorsed IG³IS project to produce top-down greenhouse gas emissions operationally and we propose to encourage corporation with relevant research groups as follows: (1) Understanding the variations in natural net greenhouse gas emissions stems from climate changes. (2) Refining the uncertainty of the emission of non-CO₂ gases such as CH₄, N₂O, and F-gases. (3) Identifying the missing or sporadic emission sources with the help of integrating characteristics of the top-down method. (4) Resolving the discrepancy between the national total emission and the integrated emission from the local governments. (5) Prioritizing research areas of reducing emission uncertainty based on the differences between the top-down and bottom-up emissions.