“嫦娥二号”发射高风险气象保障分析

Analysis on Meteorological Support when Launching Chang E Ⅱ with High Risk

通过对"嫦娥二号"探月卫星发射任务西昌发射场气候背景、气象保障的难点、保障风险等进行了分析,阐述了发射日气象保障历程,研究发现发射日出现的冷空气影响场区的天气过程主要出现在"发射窗口"之后,为任务成功提供了至关重要的决策依据。结果表明,航天气象保障具有高风险性,需要加大对气象信息的研究力度,完善应对预案,提高气象风险决策能力。

After analyzing the climate background,weather support difficulties,and support risks in Xichang when launching Chang E II,this paper described the meteorological support progress on that day.It found that the cold air which will work on the launching field appears after the ＂launch window＂,which provides a vital basis for the launching decision making.The results show that the meteorological support for spaceflight bears high risk.So we should increase research efforts on the meteorological information,and improve its contingency plan and decision-making on weather risk.