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基于气象探空运动的动力学理论模型, 设计开发了实现“上升1 h-平漂4 h-下降1 h”3阶段约6 h左右的往返平漂式探空系统 (即基于长时平漂间隔的上下二次探空) .研究分析了气球平漂运动轨迹, 结合地面接收机探测能力进行站网理论设计, 以期达到世界气象组织的要求.在此基础上, 选择长沙探空站及其周边的2个接受点组成实验网, 进行小区域范围的验证对比和分析实验.实验表明系统上升探测相对现有单次气球探空准确度要高, 其中温度偏差整体在±2.0℃内;下降探测实现了在原有单次放球探空基础上的时间加密, 结合上升探测可以实现捕获天气细微变化, 平漂探测弥补了平流层长时效连续直接探测的资料空白, 具有很好的应用前景.“,”Based on meteorological sounding motion dynamics theory, “ringing about one hour-flat-floating about four hours-falling about one hour” three stages about six hours sounding system was designed. The movement trajectory of flat-floating was studied and analyzed. The station net was theoretically redesigned in accordance with the detect-ability of ground receiver to meet the requirements of World Meteorological Organization. Afterwareds, Changsha upper-air station and two circumjacent site were selected to form an experimental network and to carry out the verification experiment of small area. Experiments show that the accuracy of the system rising is higher than the single operation sounding by balloon. The overall deviation of temperature is within ±2.0℃. The system falling can realize the time encryption of the original single balloon sounding, and could capture subtle weather changes by combining with the system rising. The system flat-floating can make up the lack of data of stratosphere-troposphere continuous direct detection with long aging, which has a good prospect of application.