河北省月平均气温分布式模型应用研究

利用1971-2000年河北省及周边126个气象台站的常规观测资料，应用月平均气温分布式模型，实现了起伏地形下河北省月平均气温的分布式模拟，制作出100 m×100 m分辨率的气温空间制图。结果表明：坝上高原和河北省平原地区地势平坦，气温分布比较均匀；燕山山脉和太行山山脉地形复杂，气温受局地地形影响显著。在角度相同的坡地上，偏南坡与偏北坡的气温差异1月>10月>4月>7月。在同一时段，偏南坡与偏北坡的气温差异随坡度的增加而增加；张家口地区多盆地河谷，气温分布均匀且较周围地区高；月平均气温分布式模型在河北省具有良好的模拟精度、时间维和空间维模拟性能及山地扩展性能。

The application of distributed model of mean monthly air temperature in Hebei province

Based on the conventionally observational data from 126 weather stations in Hebei province and surrounding area from 1971 to 2000, the monthly mean air temperature under the tugged topography condition was simulated using a  distributed model and a  spatial distribution map of air temperature with the resolution of 100 m ×100 m. The results indicate that the air temperature fluctuates weakly because of the flat terrain in the Bashang plateau and the plain area of Hebei province, while the effect of the local terrain on the air temperature is significant in a range of Yanshan mountain and Taihangshan mountain. The maximum air temperature difference between the south-facing slope and the north-facing slope with the same angle appears in January, then in October and April, while the minimum one occurs in July. The air temperature difference increases with the increase of slope angle during the same period. The air temperature fluctuates weakly and is higher than that in the surrounding area because there are many basins and river valleys in Zhangjiakou area. The simulation accuracy of the distributed model on mean monthly air temperature is high in Hebei province, so is the simulation capability of time and space dimensions, and it could be applied in the mountainous region.