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flopy_swi2_ex3.py
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flopy_swi2_ex3.py
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from __future__ import print_function
import os
import sys
import numpy as np
import flopy
import matplotlib.pyplot as plt
# --modify default matplotlib settings
updates = {'font.family': ['Univers 57 Condensed', 'Arial'],
'mathtext.default': 'regular',
'pdf.compression': 0,
'pdf.fonttype': 42,
'legend.fontsize': 7,
'axes.labelsize': 8,
'xtick.labelsize': 7,
'ytick.labelsize': 7}
plt.rcParams.update(updates)
def MergeData(ndim, zdata, tb):
sv = 0.05
md = np.empty((ndim), np.float)
md.fill(np.nan)
found = np.empty((ndim), np.bool)
found.fill(False)
for idx, layer in enumerate(zdata):
for jdx, z in enumerate(layer):
if found[jdx] == True:
continue
t0 = tb[idx][0] - sv
t1 = tb[idx][1] + sv
if z < t0 and z > t1:
md[jdx] = z
found[jdx] = True
return md
def LegBar(ax, x0, y0, t0, dx, dy, dt, cc):
for c in cc:
ax.plot([x0, x0 + dx], [y0, y0], color=c, linewidth=4)
ctxt = '{0:=3d} years'.format(t0)
ax.text(x0 + 2. * dx, y0 + dy / 2., ctxt, size=5)
y0 += dy
t0 += dt
return
def run():
workspace = 'swiex3'
cleanFiles = False
fext = 'png'
narg = len(sys.argv)
iarg = 0
if narg > 1:
while iarg < narg - 1:
iarg += 1
basearg = sys.argv[iarg].lower()
if basearg == '--clean':
cleanFiles = True
elif basearg == '--pdf':
fext = 'pdf'
if cleanFiles:
print('cleaning all files')
print('excluding *.py files')
files = os.listdir(workspace)
for f in files:
fpth = os.path.join(workspace, f)
if os.path.isdir(fpth):
continue
if '.py' != os.path.splitext(f)[1].lower():
print(' removing...{}'.format(os.path.basename(f)))
try:
os.remove(fpth)
except:
pass
return 0
modelname = 'swiex3'
exe_name = 'mf2005'
nlay = 3
nrow = 1
ncol = 200
delr = 20.0
delc = 1.
# well data
lrcQ1 = np.array([(0, 0, 199, 0.01), (2, 0, 199, 0.02)])
lrcQ2 = np.array([(0, 0, 199, 0.01 * 0.5), (2, 0, 199, 0.02 * 0.5)])
# ghb data
lrchc = np.zeros((30, 5))
lrchc[:, [0, 1, 3, 4]] = [0, 0, 0., 0.8 / 2.0]
lrchc[:, 2] = np.arange(0, 30)
# swi2 data
zini = np.hstack(
(-9 * np.ones(24), np.arange(-9, -50, -0.5), -50 * np.ones(94)))[
np.newaxis, :]
iso = np.zeros((1, 200), dtype=np.int)
iso[:, :30] = -2
# model objects
ml = flopy.modflow.Modflow(modelname, version='mf2005', exe_name=exe_name,
model_ws=workspace)
discret = flopy.modflow.ModflowDis(ml, nrow=nrow, ncol=ncol, nlay=3,
delr=delr,
delc=delc,
laycbd=[0, 0, 0], top=-9.0,
botm=[-29, -30, -50],
nper=2, perlen=[365 * 1000, 1000 * 365],
nstp=[500, 500])
bas = flopy.modflow.ModflowBas(ml, ibound=1, strt=1.0)
bcf = flopy.modflow.ModflowBcf(ml, laycon=[0, 0, 0], tran=[40.0, 1, 80.0],
vcont=[0.005, 0.005])
wel = flopy.modflow.ModflowWel(ml, stress_period_data={0: lrcQ1, 1: lrcQ2})
ghb = flopy.modflow.ModflowGhb(ml, stress_period_data={0: lrchc})
swi = flopy.modflow.ModflowSwi2(ml, iswizt=55, nsrf=1, istrat=1,
toeslope=0.01, tipslope=0.04,
nu=[0, 0.025],
zeta=[zini, zini, zini], ssz=0.2,
isource=iso,
nsolver=1)
oc = flopy.modflow.ModflowOc(ml, save_every=100, save_types=['save head'])
pcg = flopy.modflow.ModflowPcg(ml)
# write the model files
ml.write_input()
# run the model
m = ml.run_model(silent=True)
headfile = os.path.join(workspace, '{}.hds'.format(modelname))
hdobj = flopy.utils.HeadFile(headfile)
head = hdobj.get_data(totim=3.65000E+05)
zetafile = os.path.join(workspace, '{}.zta'.format(modelname))
zobj = flopy.utils.CellBudgetFile(zetafile)
zkstpkper = zobj.get_kstpkper()
zeta = []
for kk in zkstpkper:
zeta.append(zobj.get_data(kstpkper=kk, text='ZETASRF 1')[0])
zeta = np.array(zeta)
fwid, fhgt = 7.00, 4.50
flft, frgt, fbot, ftop = 0.125, 0.95, 0.125, 0.925
colormap = plt.cm.plasma # winter
cc = []
icolor = 11
cr = np.linspace(0.0, 0.9, icolor)
for idx in cr:
cc.append(colormap(idx))
lw = 0.5
x = np.arange(-30 * delr + 0.5 * delr, (ncol - 30) * delr, delr)
xedge = np.linspace(-30. * delr, (ncol - 30.) * delr, len(x) + 1)
zedge = [[-9., -29.], [-29., -30.], [-30., -50.]]
fig = plt.figure(figsize=(fwid, fhgt), facecolor='w')
fig.subplots_adjust(wspace=0.25, hspace=0.25, left=flft, right=frgt,
bottom=fbot, top=ftop)
ax = fig.add_subplot(311)
ax.text(-0.075, 1.05, 'A', transform=ax.transAxes, va='center',
ha='center',
size='8')
# confining unit
ax.fill([-600, 3400, 3400, -600], [-29, -29, -30, -30], fc=[.8, .8, .8],
ec=[.8, .8, .8])
#
z = np.copy(zini[0, :])
zr = z.copy()
p = (zr < -9.) & (zr > -50.0)
ax.plot(x[p], zr[p], color=cc[0], linewidth=lw, drawstyle='steps-mid')
#
for i in range(5):
zt = MergeData(ncol,
[zeta[i, 0, 0, :], zeta[i, 1, 0, :], zeta[i, 2, 0, :]],
zedge)
dr = zt.copy()
ax.plot(x, dr, color=cc[i + 1], linewidth=lw, drawstyle='steps-mid')
# Manufacture a legend bar
LegBar(ax, -200., -33.75, 0, 25, -2.5, 200, cc[0:6])
# axes
ax.set_ylim(-50, -9)
ax.set_ylabel('Elevation, in meters')
ax.set_xlim(-250., 2500.)
ax = fig.add_subplot(312)
ax.text(-0.075, 1.05, 'B', transform=ax.transAxes, va='center',
ha='center',
size='8')
# confining unit
ax.fill([-600, 3400, 3400, -600], [-29, -29, -30, -30], fc=[.8, .8, .8],
ec=[.8, .8, .8])
#
for i in range(4, 10):
zt = MergeData(ncol,
[zeta[i, 0, 0, :], zeta[i, 1, 0, :], zeta[i, 2, 0, :]],
zedge)
dr = zt.copy()
ax.plot(x, dr, color=cc[i + 1], linewidth=lw, drawstyle='steps-mid')
# Manufacture a legend bar
LegBar(ax, -200., -33.75, 1000, 25, -2.5, 200, cc[5:11])
# axes
ax.set_ylim(-50, -9)
ax.set_ylabel('Elevation, in meters')
ax.set_xlim(-250., 2500.)
ax = fig.add_subplot(313)
ax.text(-0.075, 1.05, 'C', transform=ax.transAxes, va='center',
ha='center',
size='8')
# confining unit
ax.fill([-600, 3400, 3400, -600], [-29, -29, -30, -30], fc=[.8, .8, .8],
ec=[.8, .8, .8])
#
zt = MergeData(ncol,
[zeta[4, 0, 0, :], zeta[4, 1, 0, :], zeta[4, 2, 0, :]],
zedge)
ax.plot(x, zt, marker='o', markersize=3, linewidth=0.0,
markeredgecolor='blue',
markerfacecolor='None')
# ghyben herzberg
zeta1 = -9 - 40. * (head[0, 0, :])
gbh = np.empty(len(zeta1), np.float)
gbho = np.empty(len(zeta1), np.float)
for idx, z1 in enumerate(zeta1):
if z1 >= -9.0 or z1 <= -50.0:
gbh[idx] = np.nan
gbho[idx] = 0.
else:
gbh[idx] = z1
gbho[idx] = z1
ax.plot(x, gbh, 'r')
np.savetxt(os.path.join(workspace, 'Ghyben-Herzberg.out'), gbho)
# fake figures
ax.plot([-100., -100], [-100., -100], 'r', label='Ghyben-Herzberg')
ax.plot([-100., -100], [-100., -100], 'bo', markersize=3,
markeredgecolor='blue', markerfacecolor='None', label='SWI2')
# legend
leg = ax.legend(loc='lower left', numpoints=1)
leg._drawFrame = False
# axes
ax.set_ylim(-50, -9)
ax.set_xlabel('Horizontal distance, in meters')
ax.set_ylabel('Elevation, in meters')
ax.set_xlim(-250., 2500.)
outfig = os.path.join(workspace, 'Figure08_swi2ex3.{0}'.format(fext))
fig.savefig(outfig, dpi=300)
print('created...', outfig)
return 0
if __name__ == '__main__':
success = run()