气象学 无线电探空仪 第3部分:无线电探空仪中温度传感器太阳辐射误差的实验室试验方法

[中文适用范围]： 本文档规定了一种通过实验室评估，基于气压、温度、通风速度、传感器支撑杆倾斜角度以及光照射在杆上的角度变化，来估计由直接太阳辐射引起的无线电探空仪温度传感器升温幅度的方法。本文档提供以下内容：a) 在模拟探空条件下测量直接太阳辐射对无线电探空仪温度测量影响的实验室装置技术要求；b) 在气压范围3 hPa至1000 hPa、温度范围-70 °C至50 °C、通风速度范围3 m·s⁻¹至7 m·s⁻¹、指定辐照度（例如1000 W·m⁻²或更高）、传感器杆倾斜范围相对于通风方向0°至45°以及光照射角度相对于传感器杆平面0°至90°的条件下，估计直接太阳辐射引起的无线电探空仪温度测量误差的测试程序；c) 在测试条件下评估结果不确定度的方法。 [外文原描述]： This document specifies a test method for estimating the magnitude of radiosonde temperature sensor warming, induced by direct solar radiation, based on variations in air pressure, temperature, ventilation speed, tilt angle of its supporting sensor boom, and light illumination angle on the boom through a laboratory evaluation. This document provides the following: technical requirements for a laboratory setup to measure the effect of direct solar radiation on radiosonde temperature measurement under simulated sounding conditions; a test procedure for estimating radiosonde temperature measurement errors due to direct solar radiation in the air pressure range of 3 hPa to 1 000 hPa, temperature range 1) of −70 °C to 50 °C, ventilation speed range of 3 m∙s −1 to 7 m∙s −1 at a specified irradiance (e.g. 1 000 or higher), sensor boom tilt range 2) from 0° to 45° with respect to the air ventilation direction and the range of light illumination 3) angle from 0° to 90° with respect to the sensor boom plane; a method to evaluate uncertainty in the results under the test conditions.