台站级地面气象观测数据综合质控系统设计

DESIGN OF COMPREHENSIVE QUALITY CONTROL SYSTEM FOR STATION-LEVEL SURFACE METEOROLOGICAL OBSERVATION DATA

气象与地球中有关学科的研究需要准确可靠的地面气象观测资料作为支撑,这是提高气候预测水平的重要前提。针对这种情况,需要对地面气象观测数据进行综合质量控制系统的设计。系统包括后台数据结构的设计及前台基于多线程操作机制的质控系统的设计。系统在地面气象资料数据入库之前进行综合质量控制,控制方法除了传统的极值、时间、内部一致性检查之外,还运用Logistic回归模型,加入设备状态的研究。系统不仅提高了数据处理效率,也使气象观测数据具备了更好的代表性、准确性和比较性。

Accurate and reliable surface meteorological data is required to support the research of related disciplines in meteorology and earth, and this is an important prerequisite for improving the climate prediction level. In light of this situation, there is the need in designing a comprehensive quality control system for surface meteorological observation data. The system includes the design of backstage data structure as well as the design of foreground quality-check system based on muhithreading operation mechanism. The system makes comprehensive quality control on surface meteorological data before to be stored. Apart from the traditional means such as extreme value, time, internal consistency check, the control method also employs Logistic regression model to add the equipment state into research. The system not only improves the efficiency of data processing, but also makes the data of surface meteorological observation with better representation, accuracy and comparison.