重庆江北国际机场微波辐射计温湿度数据在不同季节的质量评估

Quality Assessment of Microwave Radiometer Temperature and Humidity Data at Chongqing Jiangbei International Airport in Different Seasons

摘要: 利用沙坪坝站探空资料、重庆江北国际机场逐小时观测资料作为参考标准，对重庆江北国际机场微波辐射计探测的2023年温湿度数据进行了质量评估。结论表明，在不同季节，微波辐射计探测的地面温度和相对湿度质量都较高，差距不大，差值在0.7℃以内和6%~14%之间。探测的高空温度数据质量明显低于地面，秋季差值最小，冬季最差，差值较大；探测的高空相对湿度，秋冬季最小，春夏季偏大，但差值在5%以内，最后给出分季节的数据订正建议。

Abstract: Using the sounding data of Shapingba Station and the hourly observation data of Chongqing Jiangbei International Airport as reference standards, the quality of the 2023 temperature and humidity data retrieved from the microwave radiometer of Chongqing Jiangbei International Airport was evaluated. The conclusion shows that in different seasons, the quality of ground temperature and relative humidity retrieved by microwave radiometers is high, and the difference is not large. The difference is within 0.7˚C and between 6% and 14%. The quality of the retrieved upper-altitude temperature data is significantly lower than that of the ground. The difference is smallest in autumn and worst in winter, with a larger difference. The retrieved upper-altitude relative humidity is smallest in autumn and winter and larger in spring and summer, but the difference is within 5%. Finally, seasonal data revision suggestions are given.