Campbell and Bozorgnia 2003

class openquake.hazardlib.gsim.campbell_bozorgnia_2003.CampbellBozorgnia2003NSHMP2007[source]

Implements GMPE developed by Kenneth W. Campbell and Yousef Bozorgnia and published as “Updated Near-Source Ground-Motion (Attenuation) Relations for the Horizontal and Vertical Components of Peak Ground Acceleration and Acceleration Responce Spectra”, Bulletin of the Seismological Society of America, Vol. 93, No. 1, pp. 314-331, 2003.

The class implement the equation as modified by the United States Geological Survey - National Seismic Hazard Mapping Project (USGS-NSHMP) for the 2007 Alaska model (http://earthquake.usgs.gov/hazards/products/ak/2007/).

The class replicates the equation as coded in subroutine getCamp2000 in hazFXv7.f available from http://earthquake.usgs.gov/hazards/products/ak/2007/software/.

The equation compute mean value for the ‘firm rock’ conditon.

COEFFS = <openquake.hazardlib.gsim.base.CoeffsTable object at 0x2b94af4a1090>

Coefficient table (table 4, page 321. Coefficients for horizontal component and for corrected PGA)

DEFINED_FOR_INTENSITY_MEASURE_COMPONENT = 'Average horizontal'

Supported intensity measure component is the geometric mean of two horizontal components (see paragraph ‘Strong-Motion Database’, page 316)

DEFINED_FOR_INTENSITY_MEASURE_TYPES = set([<class 'openquake.hazardlib.imt.SA'>, <class 'openquake.hazardlib.imt.PGA'>])

Supported intensity measure types are PGA and SA (see Abstract)

DEFINED_FOR_STANDARD_DEVIATION_TYPES = set(['Total'])

Supported standard deviation type is Total (see equations 11, 12 pp. 319 320)

DEFINED_FOR_TECTONIC_REGION_TYPE = 'Active Shallow Crust'

Supported tectonic region type is ‘active shallow crust’ (see Abstract)

REQUIRES_DISTANCES = set(['rjb', 'rrup'])

Required distance measure are RRup and Rjb (eq. 1 and following, page 319).

REQUIRES_RUPTURE_PARAMETERS = set(['rake', 'dip', 'mag'])

Required rupture parameters are magnitude, rake and dip (eq. 1 and following, page 319).

REQUIRES_SITES_PARAMETERS = set([])

No sites parameters are required. Mean value is computed for ‘firm rock’.

get_mean_and_stddevs(sites, rup, dists, imt, stddev_types)[source]

See superclass method for spec of input and result values.

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