FFH100型自动蒸发设备比对分析及使用

为满足水文观测的自动化要求,给水文站自动蒸发设备的推广使用提供依据,通过在安塞水文站安装FFH100型自动蒸发设备,统计自动蒸发设备累积观测的与人工观测的日蒸发量数据（共计82组）,在分析自动蒸发设备构造及计算原理的基础上,对82组日蒸发量数据进行比对分析,分析观测误差及来源。数据定量回归分析及自动蒸发设备使用结果表明：人工和自动蒸发设备观测得到的2个数据变量的相关系数Rp 达到0.988,具备很高的单值对应关系,符合常数要求,能够满足水面蒸发观测规范要求。且自动蒸发设备在降雨期间能对蒸发量进行计量并自动采集与远程发报,实现蒸发观测的自动无人化,可作为北方地区非冰期水面蒸发自动测量设备选择之一。

Comparative analysis and application of FFH100 automatic evaporation equipment

In order to meet the automation requirements of hydrological observation and provide a basis for the promotion and use of automatic evaporation equipment at the hydrological station, FFH100 automatic evaporation equipment is installed at Ansai Hydrological Station to count the daily evaporation data (82 groups in total) of automatic evaporation equipment cumulative observation and manual observation. On the basis of analyzing the structure and calculation principle of automatic evaporation equipment, 82 groups of daily evaporation data are compared and analyzed to analyze the observation error and source. The results of quantitative regression analysis of data and the use of automatic evaporation equipment show that the correlation coefficient Rp of the two data variables observed by manual and automatic evaporation equipment reaches 0.988, which has a high single value correspondence, meets the constant requirements, and can meet the requirements of water surface evaporation observation specifications. In addition, the automatic evaporation equipment can measure the evaporation amount during rainfall, automatically collect and send a remote message, so as to realize automatic unmanned evaporation observation. It can be used as one of the automatic measurement equipment for water surface evaporation in non glacial periods in northern China.