测定大气等密度层倾斜的方法  

A NEW METHOD FOR DETERMINING THE TILT OF ATMOSPHERIC ISOPYCNIC LAYERS

作　　者：范瑜[1] 冒蔚[1] 

机构地区：[1]中国科学院云南天文台,昆明650011

出　　处：《天文学报》1993年第4期405-410,共6页Acta Astronomica Sinica

摘　　要：本文简述了大气等密度层倾斜对天体测量观测结果的影响.根据低纬子午环绝对测定瞬时大气折射的原理,提出了利用子午方向和卯酉方向交替观测,测定大气等密度层倾斜的方法推导了解算倾斜量的公式,并对测定精度作了估计.The paper describes briefly the effects of the tilt of atmospheric isopycnic layers on the astronomical observed results. According to the principle of absolute determination of instantaneous astronomical refraction with Lower Latitude Maridian Circle, a new method is proposed, in which the tilt is determined with the alternative observations between meridian and prime vertical. Meanwhile, the calculation formuias of the tilt value are derived and the determining accuracy is also estimated.

关 键 词：大气折射 等密度层 低纬子午环 

分 类 号：P124[天文地球—天体测量]