准噶尔盆地冬季一个例低空风、温、湿场的数值模拟  

Numerical Simulation of A Winter Case Low-Level Wind, Temperature and Humidity Fields in Zhungaer Basin

作　　者：奥银焕[1] 陈玉春[1] 吕世华[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《高原气象》2005年第2期160-166,共7页Plateau Meteorology

基　　金：国家自然科学基金重点项目(40233035);中国科学院知识创新工程方向性项目(KZCX3 SW 329)共同资助

摘　　要：利用美国NCAR非静力平衡模式MM5V3, 模拟了新疆准噶尔盆地冬季局地小气候效应, 再现了山谷风环流和冬季“冷湖效应”。模拟结果与现有理论及观测事实基本一致。模拟结果表明: 准噶尔盆地冬季大面积被积雪覆盖, 下垫面反照率大, 因此山谷风环流同黑河地区相比较弱, 但“冷湖效应”显著, 逆温特征明显, 最强可达10℃。The local climatic effect of Zhungaer basin, Xingjiang in winter was simulated through the MM5V3 meso-scale model and NCEP reanalysed data. The simulations reappear the some typical characteristics in Zhungaer basin, such as mountain valley wind and cold lake effect in the winter. The simulated results are consistent with theory and observational facts. The main results are as follows: The Zhungaer basin is covered with snow in winter, there is bigger albedo at underlying surface, so mountain valley wind in Zhungaer basin is smaller than Heihe area, Gansu Corridor, but there is stronger !cold lake effect' and inversion. The strongest inversion can reach to 10℃

关 键 词：准噶尔盆地 数值模拟 山谷风 冷湖效应 逆温 

分 类 号：P463.1[天文地球—大气科学及气象学]