【摘要】：土壤溫度在農(nóng)業(yè)生產(chǎn)中是一個重要的陸面變量,但是僅通過觀測很難獲取大范圍的、時空連續(xù)的土壤溫度數(shù)據(jù),而通過陸面模式模擬的土壤溫度可以為農(nóng)業(yè)生產(chǎn)和研究提供較為準(zhǔn)確的土壤溫度格點場�；诟邥r空分辨率的驅(qū)動數(shù)據(jù),使用Noah-MP陸面模式對中國區(qū)域的土壤溫度進行模擬,并使用2 400多個國家級氣象站的土壤溫度觀測數(shù)據(jù)對模擬結(jié)果進行評估。結(jié)果表明:(1)Noah-MP陸面模式能夠很好地模擬出中國區(qū)域土壤溫度的空間分布、時間變化,偏差在±0.5℃以內(nèi),相關(guān)系數(shù)在0.9以上;(2)從選取的8個研究區(qū)的土壤溫度模擬結(jié)果來看,NoahMP陸面模式能夠抓住各研究區(qū)的土壤溫度變化趨勢,僅對東北地區(qū)冬季的土壤溫度存在輕微的低估;(3)基于高時空分辨率驅(qū)動數(shù)據(jù)得到的土壤溫度模擬結(jié)果具有較高的準(zhǔn)確性,對于農(nóng)業(yè)氣象研究具有積極意義。
[Abstract]:Soil temperature is an important land surface variable in agricultural production, but it is difficult to obtain large-scale, spatio-temporal continuous soil temperature data only through observation. The soil temperature simulated by land surface model can provide more accurate soil temperature lattice field for agricultural production and research. Based on the driving data with high spatial and temporal resolution, the Noah-MP land surface model was used to simulate the soil temperature in China, and the soil temperature data from more than 2 400 national meteorological stations were used to evaluate the simulation results. The results are as follows: (1) the Noah-MP land surface model can well simulate the spatial distribution and time variation of soil temperature in China, the deviation is within 鹵0.5 鈩，

本文編號：2355436