고해상도 수치모델을 이용한 6000년전의 아시아 몬순 시뮬레이션

Abstract

In winter, the reduction in short wave radiations leads to an overall cooling over almost all of the Asian land masses surface temperature decreases overall during the mid-Holocene in comparison to present. The winter surface cooling is especially pronounced in India, the Arabia peninsula, South Asia, and northern Africa, where the surface temperature decreases by more than 2°C. In some regions such as northern China a warming by 2°C is simulated. This warming is partially associated with the increase in shortwave radiation. In areas such as warming is simulated. In summer, the short wave radiation increases in most of the Asian areas and this increase leads to the surface warming at 6kBP by 2~4°C. The surface warming is particularly pronounced in the western Mongolia where the surface warming reaches by more than 4°C. In the southern part of Asia, the slight summer cooling is simulated. This cooling is presumably associated with the surrounding seas. In conclusion, the high resolution model simulation reproduces climate features for the mid-Holocene at 6kBP in comparison to the paleoclimate proxy estimates and shows the enhanced summer monsoon.