def set_sites_depth_parameters(sites, gmpe):
"""
Need to select the appropriate z1pt0 value for different GMPEs.
Note that these are required site parameters, so even though
OQ has these equations built into the class in most cases.
I have submitted an issue to OQ requesting subclasses of these
methods that do not require the depth parameters in the
SitesContext to make this easier.
:param sites:
A sites context.
:param gmpe:
A GMPE instance.
:returns:
A sites context with the depth parameters set for the
requested GMPE.
"""
sites = Sites._addDepthParameters(sites)
if gmpe == 'AbrahamsonEtAl2014()':
sites.z1pt0 = sites.z1pt0_ask14_cal
if gmpe == 'ChiouYoungs2014()':
# Also BooreEtAl2014() if using subclass with depth parameter
sites.z1pt0 = sites.z1pt0_cy14_cal
if gmpe == 'CampbellBozorgnia2014()':
sites.z2pt5 = sites.z2pt5_cb14_cal
if gmpe == 'ChiouYoungs2008()':
sites.z1pt0 = sites.z1pt0_cy08
if gmpe == 'CampbellBozorgnia2008()':
sites.z2pt5 = sites.z2pt5_cb07
return sites
