两种超声波蒸发传感器观测数据差异分析

目前,国家基准气候站大多数都采用双套超声波蒸发传感器并列运行,运行后发现两种型号蒸发传感器观测数据存在差异。本文从应用环境、观测数据、校准数据以及技术指标等几方面入手,全面分析了产生差异的原因,并在此基础上提出了AG1. 0型传感器在使用时的订正系数以及AG2. 0型传感器的校准结果的订正系数。从而解决了蒸发观测数据不一致问题,同时为自动气象站蒸发传感器现场校准规范的修订提供理论依据。

Analysis of Differences in Observation Data between Two Ultrasonic Evaporation Sensors

At present,most of the national benchmark climate stations use two sets of ultrasonic evaporation sensors in parallel operation.After running,it is found that the observation data of the two types of evaporation sensors are different.This paper starts with the application environment,observation data,calibration data and technical indicators.Analyze the causes of the differences,on this basis,the following suggestions are put forward:The correction coefficient of AG1.0 sensor in use and the correction coefficient of AG2.0 sensor calibration resul.Thus solving the problem of inconsistent evaporation observation data.At the same time,it provides a theoretical basis for the revision of the on-site calibration specifications of automatic weather station evaporation sensors.