Abstract: On the basis of systematical analysis of present observational situation and yearly, monthly and daily dynamic behaviors of water temperature at different levels in the Beijing-Tianjin-Hebei region, a macroscopic evaluation of monitoring efficiency is made in this paper. The result indicates that 74.7% of wells run normally. It also indicates that 58.6% of wells in medium-term or medium-and-short-term precursory monitoring, 67.8% of wells in short-term precursory monitoring and 41.2% of wells in short-impending precursory monitoring maybe exert efficiency. In this paper, some suggestions are presented to enhance monitoring efficiency for observation of well water temperature.

Key words: Well-water-temperature, Dynamic behavior characteristics, Monitoring efficiency, Beijing-Tianjin-Hebei region