TY  - JOUR
PY  - 1994//
TI  - Stochastic modeling of seismic surface rotations
JO  - Natural hazards
A1  - Castellani, Alberto
A1  - Zembaty, Zbigniew
SP  - 181
EP  - 191
VL  - 10
IS  - 1-2
N2  - In this paper, a stochastic analysis of surface rotations during earthquakes is presented. The surface motion is modeled by a spacetime random field. A method to obtain rotation based on direct differentiation of the random field is proposed with a reference to a second method based on wave decomposition. The first method leads to a spectral density of surface rotations in terms of point translation spectral density, coherence function and apparent waves velocity, while the second method formulates the rotational spectrum in terms of point translation spectral density and wave parameters. The advantages and disadvantages of both methods are discussed in detail.<p /> <p>Language: en</p>
LA  - en
SN  - 0921-030X
UR  - http://dx.doi.org/10.1007/BF00643451
ID  - ref1
ER  -