土壤种类对气候影响的数值模拟

A NUMERICAL SIMULATIONS OF THE EFFECTS OF SOIL SPECIES ON CLIMATE

本文在有限区域5层模式中,引入修改后的土壤温度和土壤湿度的预报方法,进一步完善了模式,同时把积分区域内的陆地分成5种不同类型的下垫面,即:粘土牧草地、热带雨林气候下的土壤、沙漠、沼泽地和雪面,用此改进的5层模式模拟了下垫面对气侯的影响。模拟结果表明:模式大气对于陆地下垫面边界条件是敏感的,不同种类的下垫面,影响也不同。

Based on the heat balance principle, the soil temperature and the soil moisture prediction equations are introduced to Qian Yongfu's limited area P-σ incorporated coordinate five-level primitive equation model. In addition, the surface of the continents within the integrative area is divided into five types, i. e. clay grasslands, tropical rainforest, desert, swamp and snow surface. In this paper, we have used this improved model to simulate the influences of underlying surfaces on climate.The numerical result have proved that the model atmosphere is very sensitive to the boundary conditions of the continental underlying surfaces. What underlying surface is different, the affected extent is different.