격자단위 국가 표준 시나리오를 적용한농촌용수구역단위 자료변환 방법 비교 연구

Abstract

Representative meteorological data of the rural water district, which is the spatial unit of the study, was produced using the grid-based national standardRCP scenario rainfall data provided by the Korea Meteorological Administration. The retrospective reproducibility of the climate model scenario datawas analyzed, and the change in climate characteristics in the water district unit for the future period was presented. Finally the data characteristicsand differences of each meteorological element according to various spatial resolution conversion and post-processing methods were examined. As a main result, overall, the distribution of average precipitation and R95p of the grid data, has reasonable reproducibility compared to the ASOSobservation, but the maximum daily rainfall tends to be distributed low nationwide. The number of rainfall days tends to be higher than the station-basedobservation, and this is because the grid data is generally calculated using the area average concept of representative rainfall data for each grid. In addition, in the case of coastal regions, there is a problem that administrative districts of islands and rural water districts do not match. and In thecase of water districts that include mountainous areas, such as Jeju, there was a large difference in the results depending on whether or not high rainfallin the mountainous areas was reflected. The results of this study are expected to be used as foundation for selecting data processing methods when constructing future meteorological data forrural water districts for future agricutural water management plans and climate change vulnerability assessments.