CAJ | 학술논문

对塔里木盆地夏季降水过程和复杂的大气水分循环结构进行了分析，采用常规气象观测、探空及其不同网格NCEP等再分析数据，通过塔里木盆地视热源、水汽汇、涡度、散度三维动力结构以及相关小波周期分析、水汽输送通道相关矢量场及其Fluxpart轨迹模型等各类方法，综合剖析该区域大气热源与夏季降水过程及其水分循环结构特征。计算分析结果表明塔里木盆地沙漠边界层辐射强日变化叠加上周边C型大地形“山谷风”效应，导致高山环抱盆地及沙漠区的独特水、热过程与局地环流特征。
대탑리목분지하계강수과정화복잡적대기수분순배결구진행료분석，채용상규기상관측、탐공급기불동망격NCEP등재분석수거，통과탑리목분지시열원、수기회、와도、산도삼유동력결구이급상관소파주기분석、수기수송통도상관시량장급기Fluxpart궤적모형등각류방법，종합부석해구역대기열원여하계강수과정급기수분순배결구특정。계산분석결과표명탑리목분지사막변계층복사강일변화첩가상주변C형대지형“산곡풍”효응，도치고산배포분지급사막구적독특수、열과정여국지배류특정。
Surrounded with the Tibetan Plateau and Tianshan Mountains, the Taklimakan desert, known as the "sea of death", is located in the Tarim basin, one of the largest inland basins in China. In the Taklimakan desert, precipitation plays a critical role in formation, maintenance and recovery of ecosystems. Under the impact of westerlies and monsoon, there is a unique water cycle over the Tarim Basin of arid region in northwest China. By using the data of surface and sounding observations and NCEP-reanalysis data, this paper comprehensively analyzed the processes of summertime precipitation and water cycle over the Tarim Basin with apparent heat source and moisture sink, vorticity, divergence, wavelet cycle, correlation vector of vapor transport flux and Fluxpart trajectory model. The analysis found that the integrated influences of distinct diurnal variation of surface radiation in the Taklimakan desert and forcing of"mountain valley breeze" built by the large terrain background in the surroundings of Tarim Basin lead to the unique water and heat cycles and diurnal change of local circulation in the atmosphere over the desert basin.