def advance_in_time(self):
""" Update avulsion model one time step. """
### future work: SLRR can be a vector to change rates ###
# determine if there is an avulsion & find new path if so
### need to change this to look for shoreline after coupling ###
### (instead of looking for sea level)
(self._riv_i, self._riv_j), self._avulsion_type, self._loc = avulse.find_avulsion(
self._riv_i, self._riv_j, self._n,
self._super_ratio, self._SL, self._ch_depth,
self._short_path, self._splay_type, self._splay_dep, dx=self._dx,
dy=self._dy)
if self._saveavulsions & self._avulsion_type > 0:
new_info = (self._avulsion_type, self._time / _SECONDS_PER_YEAR, self._loc)
self._avulsion_info = np.vstack([self._avulsion_info, new_info])
#assert(self._riv_i[-1] != 0)
# save timestep and avulsion location if there was one
#if len(loc) != 0:
# self._avulsions = self._avulsions + [(self._time/_SECONDS_PER_DAY),
# loc[-1], avulsion_type, length_old,
# length_new_sum, self._SL)]
# raise first two rows by inlet rise rate (subsidence)
self._n[:2, :] += self._IRR
# change elevations according to sea level rise (SLRR)
### needs to be changed to subtracting elevation once coupled ###
SLR.elev_change(self._SL, self._n, self._riv_i,
self._riv_j, self._ch_depth)
# smooth river course elevations using linear diffusion equation
diffuse.smooth_rc(self._dx, self._dy, self._nu, self._dt,
self._riv_i, self._riv_j, self._n)
# Floodplain sedimentation
FP.dep_blanket(self._SL, self._blanket_rate, self._n,
self._riv_i, self._riv_j, self._ch_depth)
# Wetland sedimentation
### no wetlands in first version of coupling to CEM ###
FP.wetlands(self._SL, self._WL_Z, self._WL_dist * self._dy,
self._n, self._riv_i, self._riv_j, self._x, self._y)
# calculate sediment flux
self._sed_flux = flux.calc_qs(self._nu, self._riv_i,
self._riv_j, self._n,
self._dx, self._dy, self._dt)
self._profile = self._n[self._riv_i, self._riv_j]
# Update sea level
self._SL += self._SLRR
self._time += self._dt
avulsions = avulsions + [(k*dt/86400, loc[-1], avulsion_type,
length_old, length_new_sum, current_SL)]
# raise first two rows by inlet rise rate (subsidence)
n[0][:] = n[0][:] + (IRR)
n[1][:] = n[1][:] + (IRR)
# change elevations according to sea level rise (SLRR)
n, rc_flag = SLR.elev_change(imax, jmax, current_SL, n, riv_x, riv_y,
ch_depth, dx, dy)
# smooth river course elevations using linear diffusion equation
n, dn_rc = diffuse.smooth_rc(dx, dy, nu, dt, riv_x, riv_y, n, nslope)
# Floodplain sedimentation
n, dn_fp = FP.dep_blanket(dy, dx, imax, jmax, current_SL, blanket_rate,
n, riv_x, riv_y, ch_depth)
# Wetland sedimentation
n, dn_fp = FP.wetlands(dx, dy, imax, jmax, current_SL, WL_Z, WL_dist, n,
riv_x, riv_y, x, y, dn_fp)
# here we will calculate flux (?)
# create a river profile array
profile = prof.make_profile(dx, dy, n, riv_x, riv_y, profile)
# save files
if savefiles == 1:
if k >= save_after:
if k % savespacing == 0:
np.savetxt('elev_grid/elev_' + str(k*dt/86400 - (save_after)) +
