[1]LIAO Li-xia,CHEN Chang-yong,NI Xiao-yin,et al.Comparison of the Ability for Recording Earthquakes Using Water level of Different Models Instruments[J].Journal of Seismological Research,2009,32(02):137-144.
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Comparison of the Ability for Recording Earthquakes Using Water level of Different Models Instruments
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 02
Page number:
137-144
Column:
Public date:
2009-02-23
- Title:
- Comparison of the Ability for Recording Earthquakes Using Water level of Different Models Instruments
- Keywords:
- water level oscillation; recording earthquake ability; water level; sampling ratio; instrument model
- CLC:
- P315.62
- DOI:
- -
- Abstract:
- This paper aims at the comparison of the observation at different water levels obtained from instruments of different models and sampling ratio when an earthquake occurred,the results show that:the differences of recording earthquake between the ADP system and LN-3(A),mainly used in our country at present,which are the two main observation apparatus used for Digital water level observing,are mainly caused by the differences of sampling ratio,having nothing to do with the performance of instrument and the depth of wells.We consider that the ability of recording earthquake of the water level is mainly determined by the sampling ratio when the other conditions are close by.Because of the duration of the water level oscillation is only a few minutes,in order to record more complete wave of water level oscillation,and obtain more abundant examples of water level oscillation,we must enlarge the sampling ratio.At last,we indicate that in order to make a true and accurate reflection of the Earth's interior stress changes with the instantaneous changes,the developing direction of real time digital water level observation,only in this way,avoiding the omission of short period information because of lacking of enough sampling ratio,and at the same time,having more chance to catch the precursor wave and the changes of regional stress field.
- References:
- -
- Similar References:
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Last Update:
2009-02-23