A new method for detecting the crust tilt tides with a folded pendulum is presented. The principle of the folded pendulum and the displacement transducer together with the recording system are introduced. The prelimin...A new method for detecting the crust tilt tides with a folded pendulum is presented. The principle of the folded pendulum and the displacement transducer together with the recording system are introduced. The preliminary experimental result shows that the folded pendulum is very sensitive to the tilt tides.展开更多
Using tidal potential solar thermal-radiating energy current and the nonlinear effect of the gravity tide as the input function, moreover, considering the ocean tidal species as the input function of the loading effec...Using tidal potential solar thermal-radiating energy current and the nonlinear effect of the gravity tide as the input function, moreover, considering the ocean tidal species as the input function of the loading effect of ocean tide, we make the lumped response analysis of the observational tilt tide in one year. The tilt gravitational tide, the load tide, the radiational tide and the nonlinear tide with the same frequeny are separated off. It is shown that the load tide and the gravitational tide are the same quantity grade, the load tide may spread into inland far away; the solar thermal-radiation has an effect on the tilt tide; there is a little nonlinear tide in the tilt tide, but the nonlinear tide of the ocean tide has the stronger loading effect on the tilt tide than the nonlinear tide brought about by the gravitational tide itself; the lag interval, △τ=41 (h), is the best value in the response analysis. In addition, the harmonic analyses of the tilt tide and the separated tilt tides are made respectively by using j.v model, and their ellipse factors are calculated.展开更多
In this paper, the similarity and the meanings of anomalous pattern of entropy for tilt tide amplitude factor, the distribution of entropy and dimension for tilt velocity, the similarity and relationships for long-per...In this paper, the similarity and the meanings of anomalous pattern of entropy for tilt tide amplitude factor, the distribution of entropy and dimension for tilt velocity, the similarity and relationships for long-period tilt deformation and earthquake migration are demonstrated. The deformation wave and its meanings have also been explained. The authors explored the relationships between distribution of similar pattern and epicenter. The possibility of prediction for next earthquake epicenter has also been explored based on the combining tilt field and earthquake activity.展开更多
Using the view point of nonlinear science and the method of selecting numerical features of pattern recognition for reference, the physical and numerical features of precursory ground tilt data are synthetically emplo...Using the view point of nonlinear science and the method of selecting numerical features of pattern recognition for reference, the physical and numerical features of precursory ground tilt data are synthetically employed. The dynamic changes of data series are described with the numerical features in multi dimensional space and their distributive relations instead of an unique factor. The relationship between the ground tilt data and earthquake is examined through recognition and classification.展开更多
文摘A new method for detecting the crust tilt tides with a folded pendulum is presented. The principle of the folded pendulum and the displacement transducer together with the recording system are introduced. The preliminary experimental result shows that the folded pendulum is very sensitive to the tilt tides.
基金The paper is funded by the 7.5 Key ScienceTechnology Project(87-02-07)of the National Mapping Bureau
文摘Using tidal potential solar thermal-radiating energy current and the nonlinear effect of the gravity tide as the input function, moreover, considering the ocean tidal species as the input function of the loading effect of ocean tide, we make the lumped response analysis of the observational tilt tide in one year. The tilt gravitational tide, the load tide, the radiational tide and the nonlinear tide with the same frequeny are separated off. It is shown that the load tide and the gravitational tide are the same quantity grade, the load tide may spread into inland far away; the solar thermal-radiation has an effect on the tilt tide; there is a little nonlinear tide in the tilt tide, but the nonlinear tide of the ocean tide has the stronger loading effect on the tilt tide than the nonlinear tide brought about by the gravitational tide itself; the lag interval, △τ=41 (h), is the best value in the response analysis. In addition, the harmonic analyses of the tilt tide and the separated tilt tides are made respectively by using j.v model, and their ellipse factors are calculated.
文摘In this paper, the similarity and the meanings of anomalous pattern of entropy for tilt tide amplitude factor, the distribution of entropy and dimension for tilt velocity, the similarity and relationships for long-period tilt deformation and earthquake migration are demonstrated. The deformation wave and its meanings have also been explained. The authors explored the relationships between distribution of similar pattern and epicenter. The possibility of prediction for next earthquake epicenter has also been explored based on the combining tilt field and earthquake activity.
文摘Using the view point of nonlinear science and the method of selecting numerical features of pattern recognition for reference, the physical and numerical features of precursory ground tilt data are synthetically employed. The dynamic changes of data series are described with the numerical features in multi dimensional space and their distributive relations instead of an unique factor. The relationship between the ground tilt data and earthquake is examined through recognition and classification.
