中文摘要：

微波辐射计资料具有高时空密度优势，但受辐射原理限制，使用地域不同，厂家工艺及型号差异影响，导致数据质量存疑，使其在气象业务工作中的应用受到限制。对辐射计数据的可靠性和可用性进行全面研究，充分发挥其应用优势，服务于气象业务和研究，具有重要的现实意义。利用2014年7、8月爱尔达HTG-3型微波辐射计探测数据，参考北京南郊观象台气球探空资料，采用时间同步和高度同步方法，进行辐射计资料的定量分析。结果表明：（1）温湿基础数据的相关性整体表现为低层优于高层，温度在300hPa以下各标准层的相关系数均〉0．80，500hPa以下各标准层露点和水汽密度的相关系数均〉0．75；（2）700hPa以下各标准层温度、1000hPa露点和水汽密度与探空值基本相当，可直接定量使用，其余数据则需进行订正后使用；（3）除雷暴天外700hPa以下各标准层温度，1000hPa的露点以及晴、阴、雨天1000hPa的水汽密度与探空值基本一致，可替代使用，其余数据需进行订正后使用；（4）温度廓线和水汽密度廓线的一致性较好，露点廓线较差，温度廓线按优排序为晴、雾、阴、雨、雷暴天，露点廓线按优排序则正好相反；（5）辐射计探测得到的各气象要素随高度演变的廓线存在平滑现象；（6）除EL外的重要层结高度，VT、TT及SI等的相对误差在±10％左右，基本可以定量使用外，其余参数均需视情况进行订正或根据辐射计自身特点重新推导对应参量的计算公式。

英文摘要：

Microwave ationprinciple, use of radiometer data has advantage of high temporal density, however, because the restriction of radidifferent areas, the differences in the process of factories and models, leading to some questions about data quality, the data is restricted in the application of meteorological services. In order to give full play to the advantages of microwave radiometer data, servicing for the meteorological service and research, it is of great importance to study the microwave radiometer data roundly. In this paper, using the HTG-3 microwave radiometer detecting data and conventional sounding data at Beijing meteorological station （ID：54511） during July to August in 2014, adopting the method of time synchronizal：ion and height synchronization, making the quantitative analysis of microwave radiometer da- ta. The result showes that firstly the correlation of temperature and humidity data between microwave radiometer and bal- loon sounding is better in low altitude than high altitude. Under 300 hPa height, the correlation coefficient of temperature is greater than 0.8. Under ~＇00 hPa height, the correlation coefficient of dew-point temperature and water vapor density is more than 0.75. Secondly ,,the temperature under 700 hPa, the dew point and the water vapor density of 1000 hPa is al- most the same with balloon ：sounding, it can be used directly , the rest of radiometer data need to be used after correction. Thirdly ,the temperature under 700 hPa in addition to the thuderstorm day ,the dew point of 1000 hPa and the water va- por density of 1000 hPa in addition to the fog and thuderstorm day is almost the same with balloon sounding, it can be used directly , the rest of radiometer data need to be used after correction. The fllowing, the consistency of temperature profile and water vapor density profile is better, but the consistency of dew point profile is slightly wors. From good to bad sort, the correlation of temperature is sunny day, fog, cloudy day, rainy day and thunderstorm day. Fo