gov.usgs.earthquake.nshmp.gmm

Class Campbell_2003

java.lang.Object

gov.usgs.earthquake.nshmp.gmm.Campbell_2003

All Implemented Interfaces:

ConvertsMag, GroundMotionModel

public class Campbell_2003
extends Object
implements GroundMotionModel, ConvertsMag

Implementation of the hybrid ground motion model for stable continental regions by Campbell (2003). This implementation matches that used in the 2008 USGS NSHMP and comes in two additional magnitude converting (mb to Mw) flavors to support the 2008 central and eastern US model.

Note: Direct instantiation of GroundMotionModels is prohibited. Use Gmm.instance(Imt) to retrieve an instance for a desired Imt.

Implementation note: Mean values are clamped per GmmUtils.ceusMeanClip(Imt, double).

Reference: Campbell, K.W., 2003, Prediction of strong ground motion using the hybrid empirical method and its use in the development of ground-motion (attenuation) relations in eastern North America: Bulletin of the Seismological Society of America, v. 93, p. 1012–1033.

doi: 10.1785/0120020002

Component: geometric mean of two horizontal components

Author:

Peter Powers

See Also:

Gmm.CAMPBELL_03, Gmm.CAMPBELL_03_AB, Gmm.CAMPBELL_03_J

Method Summary

Modifier and Type	Method and Description
ScalarGroundMotion	calc(GmmInput in) Compute the scalar ground motion and its standard deviation for the supplied arguments.
MagConverter	converter() Returns a magnitude scale converter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

calc

public final ScalarGroundMotion calc(GmmInput in)

Description copied from interface: GroundMotionModel

Compute the scalar ground motion and its standard deviation for the supplied arguments.

Specified by:

calc in interface GroundMotionModel

Parameters:

in - a ground motion model input argument container

Returns:

a scalar ground motion wrapper

converter

public MagConverter converter()

Description copied from interface: ConvertsMag

Returns a magnitude scale converter.

Specified by:

converter in interface ConvertsMag

Returns:

a magnitude converter