초록 |
The basic observation conditions of both digital and anologue groundwater level observation in Tangshan mine well is introduced,and the ability for recording seismic wave from 11 global earthquakes (M_s≥7) from July to December in 2004 for two kinds of observation is analyzed. The result shows that the digital data have some advantages: the character recognition is easier, the initial motion is clear, the data are continuous, and the interference is small. But it is still has some shortages such as the sampling rate is lower, and the water level vibration is easier to be distorted. |