融雪性降水量资料实时处理技术

介绍区域自动站冬季融雪产生的雨量记录的识别和自动处理的方法。将融雪性降水量的识别分为降雪和融雪两个过程。在满足降雪的前提条件下,测站有雨量记录,且当时符合融雪条件,则该雨量记录作为融雪产生的记录处理。据实际使用自动识别的准确率可达90%以上。降雪和融雪的条件以区域自动站的气温作为主要依据,结合临近的国家气象观测站资料进行综合判别。为提高对天气状况和降水性质的识别还加入了雷达估测降水和冬季降水相态判别等产品,弥补用单一参考站降水资料的缺陷,对融雪雨量记录识别效果有显著作用。

Real Time Processing Technology of Snow Melting Rainfall Data

A method for recognizing and automatically processing rainfall records resulted from snow melting from regional automatic observation stations in winter is introduced in detail. The recognition is divided into two processes: snowfall and snowmelt. Under the premise of snowfall, the selected station has a record of rainfall, and it is in accordance with the condition of melting snow. According to the inspection, the automatic recognition accuracy rate is as high as 90%. The temperature of regional automatic observation stations is used as the main condition of snowfall and snow melting, combined with the data of national meteorological observation stations and the comprehensive judgment. In order to improve the recognition of weather conditions and the nature of precipitation, the radar estimated precipitation, winter precipitation phase discrimination, and other products are also added to make up for the defects of a single reference station for precipitation data, which is of significance to the recognition of snowmelt and rainfall records.