CAJ | 학술논문

利用“内蒙古微气象观测蒸发试验”的数据，估算了我国西北干旱区典型均匀裸土下垫面条件下的空气热储存和垂直平流输送，并分析了空气热储存项和垂直平流输送项对干旱区地表能量不闭合的影响。研究发现：由于干旱区温度梯度大，热力抬升作用较强，即使在均匀下垫面条件下也存在可观的垂直平流输送。在地表能量平衡方程中引入空气热储存项和垂直平流输送项之后，二者对能量不闭合的平均补偿分别达到1．0 W/m2和7．1 W/m2，闭合度分别提高2％和14％，地表能量不平衡残差平均值由26．4 W/m2减小到18．2 W/m2，地表能量闭合度由82％提升到98％，干旱区地表能量平衡有明显改善。
이용“내몽고미기상관측증발시험”적수거，고산료아국서북간한구전형균균라토하점면조건하적공기열저존화수직평류수송，병분석료공기열저존항화수직평류수송항대간한구지표능량불폐합적영향。연구발현：유우간한구온도제도대，열력태승작용교강，즉사재균균하점면조건하야존재가관적수직평류수송。재지표능량평형방정중인입공기열저존항화수직평류수송항지후，이자대능량불폐합적평균보상분별체도1．0 W/m2화7．1 W/m2，폐합도분별제고2％화14％，지표능량불평형잔차평균치유26．4 W/m2감소도18．2 W/m2，지표능량폐합도유82％제승도98％，간한구지표능량평형유명현개선。
Based on the data of“Micrometeorological Observation and Evaporation Experiment in Inner Mongolia”,the air heat storage and vertical advection under the typical homogeneous and bare soil underlying surface conditions in arid region of northwest China were estimated,firstly.And on this basis the influence of the air heat storage and vertical advection terms on the surface energy unclosing in the arid region of temperate zone were analyzed.The results showed that the thermal lifting was stronger because of the large temperature gradient in arid area.Consequently,there was considerable vertical advection even if under the homogeneous underlying surface condi-tions.When the air heat storage and vertical advection terms were introduced to the surface energy balance equation,the compensation for the energy non-closure reached averagely about 1.0 W/m2 and 7.1 W/m2,and the closure improved about 2%and 14%,respec-tively.Meanwhile,the residuals of surface energy imbalance decreased from 26.4 W/m2 to 18.2 W/m2 ,and the surface energy clo-sure increased from 82% to 98%.The surface energy balance in arid region had a significant improvement.