import numpy as np
from issm.fielddisplay import fielddisplay
from issm.checkfield import checkfield
from issm.WriteData import WriteData
from issm.project3d import project3d
[docs]class SMBd18opdd(object):
"""
SMBd18opdd Class definition
Usage:
SMBd18opdd=SMBd18opdd();
"""
def __init__(self): # {{{
self.desfac = 0.
self.s0p = float('NaN')
self.s0t = float('NaN')
self.rlaps = 0.
self.rlapslgm = 0.
self.dpermil = 0.
self.f = 0.
self.Tdiff = float('NaN')
self.sealev = float('NaN')
self.ismungsm = 0
self.isd18opd = 0
self.delta18o = float('NaN')
self.delta18o_surface = float('NaN')
self.temperatures_presentday = float('NaN')
self.precipitations_presentday = float('NaN')
#set defaults
self.setdefaultparameters()
self.requested_outputs = []
#}}}
def __repr__(self): # {{{
string=" surface forcings parameters:"
string="%s\n%s"%(string,fielddisplay(self,'isd18opd','is delta18o parametrisation from present day temperature and precipitation activated (0 or 1, default is 0)'))
string="%s\n%s"%(string,fielddisplay(self,'desfac','desertification elevation factor (between 0 and 1, default is 0.5) [m]'))
string="%s\n%s"%(string,fielddisplay(self,'s0p','should be set to elevation from precip source (between 0 and a few 1000s m, default is 0) [m]'))
string="%s\n%s"%(string,fielddisplay(self,'s0t','should be set to elevation from temperature source (between 0 and a few 1000s m, default is 0) [m]'))
string="%s\n%s"%(string,fielddisplay(self,'rlaps','present day lapse rate [degree/km]'))
if self.isd18opd:
string="%s\n%s"%(string,fielddisplay(self,'temperatures_presentday','monthly present day surface temperatures [K], required if delta18o/mungsm is activated'))
string="%s\n%s"%(string,fielddisplay(self,'precipitations_presentday','monthly surface precipitation [m/yr water eq], required if delta18o or mungsm is activated'))
string="%s\n%s"%(string,fielddisplay(self,'delta18o','delta18o [per mil], required if pdd is activated and delta18o activated'))
string="%s\n%s"%(string,fielddisplay(self,'dpermil','degree per mil, required if d18opd is activated'))
string="%s\n%s"%(string,fielddisplay(self,'requested_outputs','additional outputs requested'))
return string
#}}}
[docs] def extrude(self,md): # {{{
if self.isd18opd: self.temperatures_presentday=project3d(md,'vector',self.temperatures_presentday,'type','node')
if self.isd18opd: self.precipitations_presentday=project3d(md,'vector',self.precipitations_presentday,'type','node')
self.s0p=project3d(md,'vector',self.s0p,'type','node')
self.s0t=project3d(md,'vector',self.s0t,'type','node')
return self
#}}}
[docs] def defaultoutputs(self,md): # {{{
return []
#}}}
[docs] def initialize(self,md): # {{{
if np.all(np.isnan(self.s0p)):
self.s0p=np.zeros((md.mesh.numberofvertices))
print " no SMBd18opdd.s0p specified: values set as zero"
if np.all(np.isnan(self.s0t)):
self.s0t=np.zeros((md.mesh.numberofvertices))
print " no SMBd18opdd.s0t specified: values set as zero"
return self
# }}}
[docs] def setdefaultparameters(self): # {{{
#pdd method not used in default mode
self.ismungsm = 0
self.isd18opd = 1
self.desfac = 0.5
self.rlaps = 6.5
self.rlapslgm = 6.5
self.dpermil = 2.4
self.f = 0.169
return self
#}}}
[docs] def checkconsistency(self,md,solution,analyses): # {{{
if 'MasstransportAnalysis' in analyses:
md = checkfield(md,'fieldname','smb.desfac','<=',1,'numel',[1])
md = checkfield(md,'fieldname','smb.s0p','>=',0,'NaN',1,'Inf',1,'size',[md.mesh.numberofvertices])
md = checkfield(md,'fieldname','smb.s0t','>=',0,'NaN',1,'Inf',1,'size',[md.mesh.numberofvertices])
md = checkfield(md,'fieldname','smb.rlaps','>=',0,'numel',[1])
md = checkfield(md,'fieldname','smb.rlapslgm','>=',0,'numel',[1])
if self.isd18opd:
md = checkfield(md,'fieldname','smb.temperatures_presentday','size',[md.mesh.numberofvertices+1,12],'NaN',1,'Inf',1,'timeseries',1)
md = checkfield(md,'fieldname','smb.precipitations_presentday','size',[md.mesh.numberofvertices+1,12],'NaN',1,'Inf',1,'timeseries',1)
md = checkfield(md,'fieldname','smb.delta18o','NaN',1,'Inf',1,'size',[2,np.nan],'singletimeseries',1)
md = checkfield(md,'fieldname','smb.dpermil','>=',0,'numel',[1])
md = checkfield(md,'fieldname','smb.f','>=',0,'numel',[1])
md = checkfield(md,'fieldname','masstransport.requested_outputs','stringrow',1)
return md
# }}}
[docs] def marshall(self,prefix,md,fid): # {{{
yts=md.constants.yts
WriteData(fid,prefix,'name','md.smb.model','data',5,'format','Integer')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','ismungsm','format','Boolean')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','isd18opd','format','Boolean')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','desfac','format','Double')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','s0p','format','DoubleMat','mattype',1);
WriteData(fid,prefix,'object',self,'class','smb','fieldname','s0t','format','DoubleMat','mattype',1);
WriteData(fid,prefix,'object',self,'class','smb','fieldname','rlaps','format','Double')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','rlapslgm','format','Double')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','Tdiff','format','DoubleMat','mattype',1,'timeserieslength',2,'yts',md.constants.yts)
WriteData(fid,prefix,'object',self,'class','smb','fieldname','sealev','format','DoubleMat','mattype',1,'timeserieslength',2,'yts',md.constants.yts)
if self.isd18opd:
WriteData(fid,prefix,'object',self,'class','smb','fieldname','temperatures_presentday','format','DoubleMat','mattype',1,'timeserieslength',md.mesh.numberofvertices+1,'yts',md.constants.yts)
WriteData(fid,prefix,'object',self,'class','smb','fieldname','precipitations_presentday','format','DoubleMat','mattype',1,'scale',1./yts,'timeserieslength',md.mesh.numberofvertices+1,'yts',md.constants.yts)
WriteData(fid,prefix,'object',self,'class','smb','fieldname','delta18o','format','DoubleMat','mattype',1,'timeserieslength',2,'yts',md.constants.yts)
WriteData(fid,prefix,'object',self,'class','smb','fieldname','dpermil','format','Double')
WriteData(fid,prefix,'object',self,'class','smb','fieldname','f','format','Double')
#process requested outputs
outputs = self.requested_outputs
indices = [i for i, x in enumerate(outputs) if x == 'default']
if len(indices) > 0:
outputscopy=outputs[0:max(0,indices[0]-1)]+self.defaultoutputs(md)+outputs[indices[0]+1:]
outputs =outputscopy
WriteData(fid,prefix,'data',outputs,'name','md.smb.requested_outputs','format','StringArray')
# }}}