中文摘要：

为探究爱尔达HTG-3型微波辐射计的气象应用价值，利用2014年7-8月该型设备在北京的试验数据，参照同址测站逐小时天气纪要，按照有、无对流天气过程为标准，选取晴、雾、阴、雨、雷暴5种天气实例，从温湿、能量及稳定度多方面进行天气诊断分析应用的初步研究。结果表明：（1）该型微波辐射计探测的温湿数据基本能够反映对应天气各要素的特征及变化；（2）湿度资料的变化能更好地预示对流性天气的临近，尤其是低层（〈2km）水汽密度和积分液态水含量在对流天气发生前1h左右出现明显跃升；（3）对流有效位能CAPE值在对流天气发生前3，5hYt：始出现成倍的增长并伴有大幅震荡变化；（4）伴随对流性天气的临近，稳定度指数值整体呈波动下降趋势，能充分说明大气层结状态的演变，其中KO值的变化幅度最大，可降至-10K以下。

英文摘要：

To explore the meteorological application value of Airda HTG-3 microwave radiometer. In this paper, using the MWR＇ s test data in Beijing of July and August in 2014, on the basis of the presence of convective weather or not, selecting five different weather background examples for the application research on weather diagnostic analysis with reference to one by one hour weather report at the station. In the first palce, the results show that the MWR＇ s temperature and humidity data are basically able to reflect the characteristic and evolution of each element in the corresponding weather. Secondly, the change of the humidity data is better to predict the approach of convectional weather, especially the value of the water vapor density below 2000 metres and LWP will jump in one hour before convective weather happening. Thirdly, the value of CAPE will increase two times or more and accompany by sharp oscillation in 3 to 5 hours before convective weather happening. Finally, the value of stability indexs change with the approaching of the convective weather, which can fully reflect the evolution of the state of atmosphere. The chage of KO is biggest among these indexs, it can drop to-10 k.