南宁市2018年取用水监测数据质量评价

Quality evaluation of monitoring data of water consumption in Nanning in 2018

国家水资源监控能力建设项目取用水监控体系建设是落实最严格水资源管理信息化的关键。基于南宁市取用水监控体系2018年全年监测和2017年水资源公报年报等数据,采用对比分析和数据异常识别模型的方法,对不同行政区、行业,以及典型取水户的监测数据进行质量评价,并给出初步的数据修正思路。研究表明,不同行政区、时段、行业之间的数据质量各异,特别是不同行业之间的数据质量差异明显,灌区农业用水监测数据质量问题尤其突出。南宁市目前实际取水许可水量监控比例为85.23%,总用水量监控比例约为48.20%,南宁市取用水监控系统基本可为取水许可管理、用水量统计、水资源费核算等业务提供一定参考。

The construction of water monitoring system of National Water Resources Monitoring Capacity-Building Project is the key to implement the most stringent information-based water resources management. Based on the monitoring data of Nanning City in 2018, and annual report data of 2017 water resources bulletin, this paper evaluates the quality of monitoring data of different administrative regions, different industries and typical water intake users by using the method of comparative analysis and data anomaly recognition model, and gives a preliminary idea of data revision. The results show that the data quality of different administrative regions, different time periods and different industries is different. Especially, the data quality of different industries is obviously different. The quality problem of agricultural water monitoring data in irrigation area is particularly prominent. At present, the proportion of actual water intake permission monitoring in Nanning is 85.22%, and the proportion of total water consumption monitoring is about 48.19%. The water intake monitoring system in Nanning can basically provide some reference for business such as water intake permission management, water consumption statistics, water resources fee accounting and so on.