集合式数字多普勒声雷达及其在西藏高原试验(TIPEX)中的应用  

AN ASSEMBLED DIGITAL DOPPLER ACOUSTIC RADER AND ITS APPLICATION IN TIBETAN PLATEAU EXPERIMENT(TIPEX)

作　　者：李诗明[1] 周明煜[1] 陈陟[1] 苏立荣[1] 陈景南[1] 郑月明[1] 吕乃平[1] 钱粉兰[1] 徐祥德[2] 陈联寿[2] 

机构地区：[1]国家海洋环境预报中心,北京100081 [2]中国气象科学研究院,北京100081

出　　处：《地球物理学报》2001年第3期327-335,共9页Chinese Journal of Geophysics

基　　金：国家攻关项目!"96-92 2 -0 3-0 4 -0 3"专题;国家攀登项目"TIPEX";国家基金项目!( 496752 53;4 0 0 750 0 )

摘　　要：为了便于野外试验 ,对多普勒声雷达天线作了重新设计 .本文对新设计的集合式数字多普勒声雷达作了介绍 ,对比试验结果说明新设计的声雷达测量风速和风向的结果与系留气艇测量结果相符很好 ,其性能与过去国内和国外分离式天线多普勒声雷达的性能相当 .在西藏高原试验中 ,新设计的多普勒声雷达进行了 40多天连续探测 .声雷达探测结果发现在西藏高原当雄地区存在烟柱式上升运动 ,其垂直速度可达A new antenna of Doppler acoustic rader was designed for convenience in field experiment. The new assembled digital Doppler rader was introduced in this paper. The results of comparison experiment show that the speed and direction of wind detected by the new rader conicide with those by tethersonde,and its functions are equivalent to those of Doppler acoustic radar with separated antenna developed previously in China and other countries. A continuous detection of the new designed rader was carried out for more than forty days in Tibetan plateau experiment. The results show that a plume upward motion exists in Dangxiong area of Tibet and its vertical velocity reaches about 1m/s. [

关 键 词：边界层 垂直运动 大气探测 西藏高原 集合式数字多普勒声雷达 风速 风向 大气边界层 

分 类 号：P412.25[天文地球—大气科学及气象学]