This code sets up a simulation and creates some data for the simulation.
import os
import sys
from pprint import pformat
from tempfile import TemporaryDirectory
import numpy as np
import flopy
# init paths
exe_name = "mf6"
# temporary directory
temp_dir = TemporaryDirectory()
sim_path = os.path.join(temp_dir.name, "obs_ts_tas_ex")
# make the directory if it does not exist
if not os.path.isdir(sim_path):
os.makedirs(sim_path, exist_ok=True)
# init paths
test_ex_name = "child_pkgs_test"
model_name = "child_pkgs"
print(sys.version)
print(f"numpy version: {np.__version__}")
print(f"flopy version: {flopy.__version__}")
3.12.11 | packaged by conda-forge | (main, Jun 4 2025, 14:45:31) [GCC 13.3.0] numpy version: 2.3.2 flopy version: 3.10.0.dev3
# create simulation
sim = flopy.mf6.MFSimulation(
sim_name=test_ex_name, version="mf6", exe_name="mf6", sim_ws=sim_path
)
tdis_rc = [(1.0, 1, 1.0), (10.0, 120, 1.0), (10.0, 120, 1.0), (10.0, 120, 1.0)]
tdis_package = flopy.mf6.modflow.mftdis.ModflowTdis(
sim, time_units="DAYS", nper=4, perioddata=tdis_rc
)
model = flopy.mf6.ModflowGwf(
sim, modelname=model_name, model_nam_file=f"{model_name}.nam"
)
ims_package = flopy.mf6.modflow.mfims.ModflowIms(
sim,
print_option="SUMMARY",
complexity="SIMPLE",
outer_hclose=0.0001,
outer_maximum=500,
under_relaxation="NONE",
inner_maximum=100,
inner_hclose=0.0001,
rcloserecord=0.001,
linear_acceleration="CG",
scaling_method="NONE",
reordering_method="NONE",
relaxation_factor=0.97,
)
sim.register_ims_package(ims_package, [model.name])
bot_data = [-100 for x in range(150)]
dis_package = flopy.mf6.modflow.mfgwfdis.ModflowGwfdis(
model,
nlay=3,
nrow=15,
ncol=10,
delr=500.0,
delc=500.0,
top=50.0,
botm=[5.0, -10.0, {"factor": 1.0, "data": bot_data}],
filename=f"{model_name}.dis",
)
ic_package = flopy.mf6.modflow.mfgwfic.ModflowGwfic(
model, strt=50.0, filename=f"{model_name}.ic"
)
npf_package = flopy.mf6.modflow.mfgwfnpf.ModflowGwfnpf(
model,
save_flows=True,
icelltype=[1, 0, 0],
k=[5.0, 0.1, 4.0],
k33=[0.5, 0.005, 0.1],
)
oc_package = flopy.mf6.modflow.mfgwfoc.ModflowGwfoc(
model,
budget_filerecord="child_pkgs.cbc",
head_filerecord="child_pkgs.hds",
headprintrecord=["COLUMNS", 10, "WIDTH", 15, "DIGITS", 6, "GENERAL"],
saverecord=[("HEAD", "ALL"), ("BUDGET", "ALL")],
printrecord=[("HEAD", "FIRST"), ("HEAD", "LAST"), ("BUDGET", "LAST")],
)
sto_package = flopy.mf6.modflow.mfgwfsto.ModflowGwfsto(
model,
save_flows=True,
iconvert=1,
ss=0.000001,
sy=0.2,
steady_state={0: True},
transient={1: True},
)
Observations
Observations can be set for any package through the package.obs object, and each package.obs object has several attributes that can be set:
package.obs.filename : str Name of observations file to create. The default is packagename + ‘.obs’, e.g. mymodel.ghb.obs.
package.obs.continuous : dict A dictionary that has file names as keys and a list of observations as the dictionary values. Default should probably be None. package.obs.observations = {‘fname1’: [(obsname, obstype, cellid), …], ‘fname2’: [(obsname, obstype, cellid), …]}
package.obs.digits : int Number of digits to write the observation values. Default is 10.
package.obs.print_input : bool Flag indicating whether or not observations are written to listing file.
Method 1: Pass obs to package constructor# build ghb stress period data
ghb_spd = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
ghb_period.append(((layer, row, 9), 1.0, cond, "Estuary-L2"))
ghb_spd[0] = ghb_period
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# build ghb package
ghb = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
observations=ghb_obs,
pname="ghb",
maxbound=30,
stress_period_data=ghb_spd,
)
ghb.obs.print_input = True
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
assert success, pformat(buff)
# clean up for next example
model.remove_package("ghb")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package obs_0...
Method 2: Initialize obs through ghb.obs.initialize
# build ghb stress period data
ghb_spd = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
ghb_period.append(((layer, row, 9), 1.0, cond, "Estuary-L2"))
ghb_spd[0] = ghb_period
# build ghb package
ghb = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
maxbound=30,
stress_period_data=ghb_spd,
pname="ghb",
)
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# initialize obs package
ghb.obs.initialize(
filename="child_pkgs_test.ghb.obs",
digits=9,
print_input=True,
continuous=ghb_obs,
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("ghb")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package obs_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:15
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
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Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Elapsed run time: 0.161 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Method 3: Pass observations a dictionary of anything that could be passed to ghb.obs.initialize
# build ghb stress period data
ghb_spd = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
ghb_period.append(((layer, row, 9), 1.0, cond, "Estuary-L2"))
ghb_spd[0] = ghb_period
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# append additional obs attributes to obs dictionary
ghb_obs["digits"] = 7
ghb_obs["print_input"] = False
ghb_obs["filename"] = "method_3.obs"
# build ghb package
ghb_package = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
observations=ghb_obs,
pname="ghb",
maxbound=30,
stress_period_data=ghb_spd,
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("ghb")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package obs_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
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Solving: Stress period: 4 Time step: 113
Solving: Stress period: 4 Time step: 114
Solving: Stress period: 4 Time step: 115
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Solving: Stress period: 4 Time step: 117
Solving: Stress period: 4 Time step: 118
Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Elapsed run time: 0.164 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Time Series
Time series can be set for any package through the package.ts object, and each package.ts object has several attributes that can be set:
package.ts.filename : str Name of time series file to create. The default is packagename + ‘.ts’, e.g. mymodel.ghb.ts.
package.ts.timeseries : recarray Array containing the time series information. timeseries = [(t, np.sin(t)) for t in np.linspace(0, 100., 10)]
package.ts.time_series_namerecord : str or list (of strings) List of names of the time series data columns. Default is to use names from timeseries.dtype.names[1:].
package.ts.interpolation_methodrecord_single : str Interpolation method. Must be only one time series record. If there are multiple time series records, then the methods attribute must be used. Default is ‘linear’.
package.ts.interpolation_methodrecord : list (of strings) List of interpolation methods to use for each time series data column. Method must be either ‘stepwise’, ‘linear’, or ‘linearend’.
package.ts.sfacrecord_single : float Scale factor to multiply the time series data column. Can only be used if there is one time series data column.
package.ts.sfacrecord : list (of floats) Scale factors to multiply the time series data columns.
Method 1: Pass time series to package constructor# build ghb stress period data
ghb_spd_ts = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
ghb_period.append(((layer, row, 9), "tides", cond, "Estuary-L2"))
ghb_spd_ts[0] = ghb_period
# build ts data
ts_data = []
for n in range(0, 365):
ts_data.append((float(n / 11.73), float(n / 60.0)))
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# build ghb package
ghb = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
timeseries=ts_data,
pname="ghb",
maxbound=30,
stress_period_data=ghb_spd_ts,
)
# set required time series attributes
ghb.ts.time_series_namerecord = "tides"
ghb.ts.interpolation_methodrecord = "stepwise"
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("ghb")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
Solving: Stress period: 2 Time step: 4
Solving: Stress period: 2 Time step: 5
Solving: Stress period: 2 Time step: 6
Solving: Stress period: 2 Time step: 7
Solving: Stress period: 2 Time step: 8
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Solving: Stress period: 2 Time step: 46
Solving: Stress period: 2 Time step: 47
Solving: Stress period: 2 Time step: 48
Solving: Stress period: 2 Time step: 49
Solving: Stress period: 2 Time step: 50
Solving: Stress period: 2 Time step: 51
Solving: Stress period: 2 Time step: 52
Solving: Stress period: 2 Time step: 53
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Solving: Stress period: 2 Time step: 90
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Solving: Stress period: 2 Time step: 97
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Solving: Stress period: 2 Time step: 109
Solving: Stress period: 2 Time step: 110
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Solving: Stress period: 2 Time step: 112
Solving: Stress period: 2 Time step: 113
Solving: Stress period: 2 Time step: 114
Solving: Stress period: 2 Time step: 115
Solving: Stress period: 2 Time step: 116
Solving: Stress period: 2 Time step: 117
Solving: Stress period: 2 Time step: 118
Solving: Stress period: 2 Time step: 119
Solving: Stress period: 2 Time step: 120
Solving: Stress period: 3 Time step: 1
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Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Elapsed run time: 0.263 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Method 2: Initialize time series through ghb.ts.initialize
# build ghb stress period data
ghb_spd_ts = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
ghb_period.append(((layer, row, 9), "tides", cond, "Estuary-L2"))
ghb_spd_ts[0] = ghb_period
# build ts data
ts_data = []
for n in range(0, 365):
ts_data.append((float(n / 11.73), float(n / 60.0)))
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# build ghb package
ghb = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
pname="ghb",
maxbound=30,
stress_period_data=ghb_spd_ts,
)
# initialize time series
ghb.ts.initialize(
filename="method2.ts",
timeseries=ts_data,
time_series_namerecord="tides",
interpolation_methodrecord="linearend",
sfacrecord=1.1,
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("ghb")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
Solving: Stress period: 2 Time step: 4
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Solving: Stress period: 2 Time step: 94
Solving: Stress period: 2 Time step: 95
Solving: Stress period: 2 Time step: 96
Solving: Stress period: 2 Time step: 97
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Solving: Stress period: 2 Time step: 105
Solving: Stress period: 2 Time step: 106
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Solving: Stress period: 2 Time step: 109
Solving: Stress period: 2 Time step: 110
Solving: Stress period: 2 Time step: 111
Solving: Stress period: 2 Time step: 112
Solving: Stress period: 2 Time step: 113
Solving: Stress period: 2 Time step: 114
Solving: Stress period: 2 Time step: 115
Solving: Stress period: 2 Time step: 116
Solving: Stress period: 2 Time step: 117
Solving: Stress period: 2 Time step: 118
Solving: Stress period: 2 Time step: 119
Solving: Stress period: 2 Time step: 120
Solving: Stress period: 3 Time step: 1
Solving: Stress period: 3 Time step: 2
Solving: Stress period: 3 Time step: 3
Solving: Stress period: 3 Time step: 4
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Solving: Stress period: 3 Time step: 95
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Solving: Stress period: 3 Time step: 97
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Solving: Stress period: 3 Time step: 110
Solving: Stress period: 3 Time step: 111
Solving: Stress period: 3 Time step: 112
Solving: Stress period: 3 Time step: 113
Solving: Stress period: 3 Time step: 114
Solving: Stress period: 3 Time step: 115
Solving: Stress period: 3 Time step: 116
Solving: Stress period: 3 Time step: 117
Solving: Stress period: 3 Time step: 118
Solving: Stress period: 3 Time step: 119
Solving: Stress period: 3 Time step: 120
Solving: Stress period: 4 Time step: 1
Solving: Stress period: 4 Time step: 2
Solving: Stress period: 4 Time step: 3
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Solving: Stress period: 4 Time step: 111
Solving: Stress period: 4 Time step: 112
Solving: Stress period: 4 Time step: 113
Solving: Stress period: 4 Time step: 114
Solving: Stress period: 4 Time step: 115
Solving: Stress period: 4 Time step: 116
Solving: Stress period: 4 Time step: 117
Solving: Stress period: 4 Time step: 118
Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Elapsed run time: 0.276 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Method 3: Pass timeseries a dictionary of anything that could be passed to ghb.ts.initialize
# build ghb stress period data
ghb_spd_ts = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
ghb_period.append(((layer, row, 9), "tides", cond, "Estuary-L2"))
ghb_spd_ts[0] = ghb_period
# build ts data
ts_data = []
for n in range(0, 365):
ts_data.append((float(n / 11.73), float(n / 60.0)))
ts_dict = {
"timeseries": ts_data,
"time_series_namerecord": "tides",
"interpolation_methodrecord": "linear",
"filename": "method3.ts",
}
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# build ghb package
ghb = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
pname="ghb",
timeseries=ts_dict,
maxbound=30,
stress_period_data=ghb_spd_ts,
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("ghb")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:16
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
Solving: Stress period: 2 Time step: 4
Solving: Stress period: 2 Time step: 5
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Solving: Stress period: 3 Time step: 1
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Solving: Stress period: 3 Time step: 119
Solving: Stress period: 3 Time step: 120
Solving: Stress period: 4 Time step: 1
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Solving: Stress period: 4 Time step: 89
Solving: Stress period: 4 Time step: 90
Solving: Stress period: 4 Time step: 91
Solving: Stress period: 4 Time step: 92
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Solving: Stress period: 4 Time step: 95
Solving: Stress period: 4 Time step: 96
Solving: Stress period: 4 Time step: 97
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Solving: Stress period: 4 Time step: 105
Solving: Stress period: 4 Time step: 106
Solving: Stress period: 4 Time step: 107
Solving: Stress period: 4 Time step: 108
Solving: Stress period: 4 Time step: 109
Solving: Stress period: 4 Time step: 110
Solving: Stress period: 4 Time step: 111
Solving: Stress period: 4 Time step: 112
Solving: Stress period: 4 Time step: 113
Solving: Stress period: 4 Time step: 114
Solving: Stress period: 4 Time step: 115
Solving: Stress period: 4 Time step: 116
Solving: Stress period: 4 Time step: 117
Solving: Stress period: 4 Time step: 118
Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:17
Elapsed run time: 0.261 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Multiple time series packages
# build ghb stress period data
ghb_spd_ts = {}
ghb_period = []
for layer, cond in zip(range(1, 3), [15.0, 1500.0]):
for row in range(0, 15):
if row < 10:
ghb_period.append(((layer, row, 9), "tides", cond, "Estuary-L2"))
else:
ghb_period.append(((layer, row, 9), "wl", cond, "Estuary-L2"))
ghb_spd_ts[0] = ghb_period
# build ts data
ts_data = []
for n in range(0, 365):
ts_data.append((float(n / 11.73), float(n / 60.0)))
ts_data2 = []
for n in range(0, 365):
ts_data2.append((float(0.0 + (n / 11.73)), 2 * float(n / 60.0)))
ts_data3 = []
for n in range(0, 365):
ts_data3.append((float(0.0 + (n / 11.73)), 1.5 * float(n / 60.0)))
# build obs data
ghb_obs = {
("ghb_obs.csv", "binary"): [
("ghb-2-6-10", "GHB", (1, 5, 9)),
("ghb-3-6-10", "GHB", (2, 5, 9)),
],
"ghb_flows.csv": [
("Estuary2", "GHB", "Estuary-L2"),
("Estuary3", "GHB", "Estuary-L3"),
],
}
# build ghb package
ghb = flopy.mf6.modflow.mfgwfghb.ModflowGwfghb(
model,
print_input=True,
print_flows=True,
save_flows=True,
boundnames=True,
pname="ghb",
maxbound=30,
stress_period_data=ghb_spd_ts,
)
# initialize time series
ghb.ts.initialize(
filename="tides.ts",
timeseries=ts_data,
time_series_namerecord="tides",
interpolation_methodrecord="linearend",
sfacrecord=1.1,
)
# append additional time series
ghb.ts.append_package(
filename="wls.ts",
timeseries=ts_data2,
time_series_namerecord="wl",
interpolation_methodrecord="stepwise",
sfacrecord=1.2,
)
# append additional time series
ghb.ts.append_package(
filename="wls2.ts",
timeseries=ts_data3,
time_series_namerecord="wl2",
interpolation_methodrecord="stepwise",
sfacrecord=1.3,
)
# retreive information from each time series
print(
"{} is using {} interpolation".format(
ghb.ts[0].filename, ghb.ts[0].interpolation_methodrecord.get_data()[0][0]
)
)
print(
"{} is using {} interpolation".format(
ghb.ts[1].filename, ghb.ts[1].interpolation_methodrecord.get_data()[0][0]
)
)
print(
"{} is using {} interpolation".format(
ghb.ts[2].filename, ghb.ts[2].interpolation_methodrecord.get_data()[0][0]
)
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
tides.ts is using linearend interpolation
wls.ts is using stepwise interpolation
wls2.ts is using stepwise interpolation
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
writing package ts_1...
writing package ts_2...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:17
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
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Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:17
Elapsed run time: 0.275 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Time Array Series
Time array series can be set for any package through the package.tas object, and each package.tas object has several attributes that can be set:
package.tas.filename : str Name of time series file to create. The default is packagename + ‘.tas’, e.g. mymodel.rcha.tas.
package.tas.tas_array : {double:[double]} Array containing the time array series information for specific times. tas_array = {0.0: 0.0001, 200.0: [0.01, 0.02…]}
package.tas.time_series_namerecord : str Name by which a package references a particular time-array series. The name must be unique among all time-array series used in a package
package.tas.interpolation_methodrecord : list (of strings) List of interpolation methods to use for time array series. Method must be either ‘stepwise’ or ‘linear’.
package.tas.sfacrecord_single : float Scale factor to multiply the time array series data column. Can only be used if there is one time series data column.
Method 1: Pass time array series to package constructortas = {0.0: 0.000002, 200.0: 0.0000001}
# create recharge package with time array series data
# flopy will generate a warning that there is not yet a time series name
# record for recharray_1
rcha = flopy.mf6.modflow.mfgwfrcha.ModflowGwfrcha(
model, timearrayseries=tas, recharge="TIMEARRAYSERIES rcharray_1"
)
# finish defining the time array series properties
rcha.tas.time_series_namerecord = "rcharray_1"
rcha.tas.interpolation_methodrecord = "LINEAR"
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("rcha")
WARNING: Time array series name rcharray_1 not found in any time series file
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
writing package ts_1...
writing package ts_2...
writing package rcha_0...
writing package tas_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:17
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
Solving: Stress period: 2 Time step: 4
Solving: Stress period: 2 Time step: 5
Solving: Stress period: 2 Time step: 6
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Solving: Stress period: 2 Time step: 8
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Solving: Stress period: 2 Time step: 94
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Solving: Stress period: 2 Time step: 96
Solving: Stress period: 2 Time step: 97
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Solving: Stress period: 2 Time step: 111
Solving: Stress period: 2 Time step: 112
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Solving: Stress period: 2 Time step: 115
Solving: Stress period: 2 Time step: 116
Solving: Stress period: 2 Time step: 117
Solving: Stress period: 2 Time step: 118
Solving: Stress period: 2 Time step: 119
Solving: Stress period: 2 Time step: 120
Solving: Stress period: 3 Time step: 1
Solving: Stress period: 3 Time step: 2
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Solving: Stress period: 3 Time step: 60
Solving: Stress period: 3 Time step: 61
Solving: Stress period: 3 Time step: 62
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Solving: Stress period: 3 Time step: 66
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Solving: Stress period: 3 Time step: 72
Solving: Stress period: 3 Time step: 73
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Solving: Stress period: 3 Time step: 75
Solving: Stress period: 3 Time step: 76
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Solving: Stress period: 3 Time step: 78
Solving: Stress period: 3 Time step: 79
Solving: Stress period: 3 Time step: 80
Solving: Stress period: 3 Time step: 81
Solving: Stress period: 3 Time step: 82
Solving: Stress period: 3 Time step: 83
Solving: Stress period: 3 Time step: 84
Solving: Stress period: 3 Time step: 85
Solving: Stress period: 3 Time step: 86
Solving: Stress period: 3 Time step: 87
Solving: Stress period: 3 Time step: 88
Solving: Stress period: 3 Time step: 89
Solving: Stress period: 3 Time step: 90
Solving: Stress period: 3 Time step: 91
Solving: Stress period: 3 Time step: 92
Solving: Stress period: 3 Time step: 93
Solving: Stress period: 3 Time step: 94
Solving: Stress period: 3 Time step: 95
Solving: Stress period: 3 Time step: 96
Solving: Stress period: 3 Time step: 97
Solving: Stress period: 3 Time step: 98
Solving: Stress period: 3 Time step: 99
Solving: Stress period: 3 Time step: 100
Solving: Stress period: 3 Time step: 101
Solving: Stress period: 3 Time step: 102
Solving: Stress period: 3 Time step: 103
Solving: Stress period: 3 Time step: 104
Solving: Stress period: 3 Time step: 105
Solving: Stress period: 3 Time step: 106
Solving: Stress period: 3 Time step: 107
Solving: Stress period: 3 Time step: 108
Solving: Stress period: 3 Time step: 109
Solving: Stress period: 3 Time step: 110
Solving: Stress period: 3 Time step: 111
Solving: Stress period: 3 Time step: 112
Solving: Stress period: 3 Time step: 113
Solving: Stress period: 3 Time step: 114
Solving: Stress period: 3 Time step: 115
Solving: Stress period: 3 Time step: 116
Solving: Stress period: 3 Time step: 117
Solving: Stress period: 3 Time step: 118
Solving: Stress period: 3 Time step: 119
Solving: Stress period: 3 Time step: 120
Solving: Stress period: 4 Time step: 1
Solving: Stress period: 4 Time step: 2
Solving: Stress period: 4 Time step: 3
Solving: Stress period: 4 Time step: 4
Solving: Stress period: 4 Time step: 5
Solving: Stress period: 4 Time step: 6
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Solving: Stress period: 4 Time step: 8
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Solving: Stress period: 4 Time step: 10
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Solving: Stress period: 4 Time step: 12
Solving: Stress period: 4 Time step: 13
Solving: Stress period: 4 Time step: 14
Solving: Stress period: 4 Time step: 15
Solving: Stress period: 4 Time step: 16
Solving: Stress period: 4 Time step: 17
Solving: Stress period: 4 Time step: 18
Solving: Stress period: 4 Time step: 19
Solving: Stress period: 4 Time step: 20
Solving: Stress period: 4 Time step: 21
Solving: Stress period: 4 Time step: 22
Solving: Stress period: 4 Time step: 23
Solving: Stress period: 4 Time step: 24
Solving: Stress period: 4 Time step: 25
Solving: Stress period: 4 Time step: 26
Solving: Stress period: 4 Time step: 27
Solving: Stress period: 4 Time step: 28
Solving: Stress period: 4 Time step: 29
Solving: Stress period: 4 Time step: 30
Solving: Stress period: 4 Time step: 31
Solving: Stress period: 4 Time step: 32
Solving: Stress period: 4 Time step: 33
Solving: Stress period: 4 Time step: 34
Solving: Stress period: 4 Time step: 35
Solving: Stress period: 4 Time step: 36
Solving: Stress period: 4 Time step: 37
Solving: Stress period: 4 Time step: 38
Solving: Stress period: 4 Time step: 39
Solving: Stress period: 4 Time step: 40
Solving: Stress period: 4 Time step: 41
Solving: Stress period: 4 Time step: 42
Solving: Stress period: 4 Time step: 43
Solving: Stress period: 4 Time step: 44
Solving: Stress period: 4 Time step: 45
Solving: Stress period: 4 Time step: 46
Solving: Stress period: 4 Time step: 47
Solving: Stress period: 4 Time step: 48
Solving: Stress period: 4 Time step: 49
Solving: Stress period: 4 Time step: 50
Solving: Stress period: 4 Time step: 51
Solving: Stress period: 4 Time step: 52
Solving: Stress period: 4 Time step: 53
Solving: Stress period: 4 Time step: 54
Solving: Stress period: 4 Time step: 55
Solving: Stress period: 4 Time step: 56
Solving: Stress period: 4 Time step: 57
Solving: Stress period: 4 Time step: 58
Solving: Stress period: 4 Time step: 59
Solving: Stress period: 4 Time step: 60
Solving: Stress period: 4 Time step: 61
Solving: Stress period: 4 Time step: 62
Solving: Stress period: 4 Time step: 63
Solving: Stress period: 4 Time step: 64
Solving: Stress period: 4 Time step: 65
Solving: Stress period: 4 Time step: 66
Solving: Stress period: 4 Time step: 67
Solving: Stress period: 4 Time step: 68
Solving: Stress period: 4 Time step: 69
Solving: Stress period: 4 Time step: 70
Solving: Stress period: 4 Time step: 71
Solving: Stress period: 4 Time step: 72
Solving: Stress period: 4 Time step: 73
Solving: Stress period: 4 Time step: 74
Solving: Stress period: 4 Time step: 75
Solving: Stress period: 4 Time step: 76
Solving: Stress period: 4 Time step: 77
Solving: Stress period: 4 Time step: 78
Solving: Stress period: 4 Time step: 79
Solving: Stress period: 4 Time step: 80
Solving: Stress period: 4 Time step: 81
Solving: Stress period: 4 Time step: 82
Solving: Stress period: 4 Time step: 83
Solving: Stress period: 4 Time step: 84
Solving: Stress period: 4 Time step: 85
Solving: Stress period: 4 Time step: 86
Solving: Stress period: 4 Time step: 87
Solving: Stress period: 4 Time step: 88
Solving: Stress period: 4 Time step: 89
Solving: Stress period: 4 Time step: 90
Solving: Stress period: 4 Time step: 91
Solving: Stress period: 4 Time step: 92
Solving: Stress period: 4 Time step: 93
Solving: Stress period: 4 Time step: 94
Solving: Stress period: 4 Time step: 95
Solving: Stress period: 4 Time step: 96
Solving: Stress period: 4 Time step: 97
Solving: Stress period: 4 Time step: 98
Solving: Stress period: 4 Time step: 99
Solving: Stress period: 4 Time step: 100
Solving: Stress period: 4 Time step: 101
Solving: Stress period: 4 Time step: 102
Solving: Stress period: 4 Time step: 103
Solving: Stress period: 4 Time step: 104
Solving: Stress period: 4 Time step: 105
Solving: Stress period: 4 Time step: 106
Solving: Stress period: 4 Time step: 107
Solving: Stress period: 4 Time step: 108
Solving: Stress period: 4 Time step: 109
Solving: Stress period: 4 Time step: 110
Solving: Stress period: 4 Time step: 111
Solving: Stress period: 4 Time step: 112
Solving: Stress period: 4 Time step: 113
Solving: Stress period: 4 Time step: 114
Solving: Stress period: 4 Time step: 115
Solving: Stress period: 4 Time step: 116
Solving: Stress period: 4 Time step: 117
Solving: Stress period: 4 Time step: 118
Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:17
Elapsed run time: 0.286 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Method 2: Initialize time array series through rcha.tas.initialize
# create recharge package with recharge pointing to a time array series
# not yet defined. flopy will generate a warning that there is not yet a
# time series name record for recharray_1
rcha = flopy.mf6.modflow.mfgwfrcha.ModflowGwfrcha(
model, recharge="TIMEARRAYSERIES rcharray_1"
)
rch_array = 0.000002 * np.ones((15, 10))
rch_array[0, 0] = 0.0001
tas = {0.0: rch_array, 200.0: 0.0000001}
# initialize the time array series
rcha.tas.initialize(
filename="method2.tas",
tas_array=tas,
time_series_namerecord="rcharray_1",
interpolation_methodrecord="LINEAR",
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("rcha")
WARNING: Time array series name rcharray_1 not found in any time series file
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
writing package ts_1...
writing package ts_2...
writing package rcha_0...
writing package tas_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:17
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
Solving: Stress period: 2 Time step: 4
Solving: Stress period: 2 Time step: 5
Solving: Stress period: 2 Time step: 6
Solving: Stress period: 2 Time step: 7
Solving: Stress period: 2 Time step: 8
Solving: Stress period: 2 Time step: 9
Solving: Stress period: 2 Time step: 10
Solving: Stress period: 2 Time step: 11
Solving: Stress period: 2 Time step: 12
Solving: Stress period: 2 Time step: 13
Solving: Stress period: 2 Time step: 14
Solving: Stress period: 2 Time step: 15
Solving: Stress period: 2 Time step: 16
Solving: Stress period: 2 Time step: 17
Solving: Stress period: 2 Time step: 18
Solving: Stress period: 2 Time step: 19
Solving: Stress period: 2 Time step: 20
Solving: Stress period: 2 Time step: 21
Solving: Stress period: 2 Time step: 22
Solving: Stress period: 2 Time step: 23
Solving: Stress period: 2 Time step: 24
Solving: Stress period: 2 Time step: 25
Solving: Stress period: 2 Time step: 26
Solving: Stress period: 2 Time step: 27
Solving: Stress period: 2 Time step: 28
Solving: Stress period: 2 Time step: 29
Solving: Stress period: 2 Time step: 30
Solving: Stress period: 2 Time step: 31
Solving: Stress period: 2 Time step: 32
Solving: Stress period: 2 Time step: 33
Solving: Stress period: 2 Time step: 34
Solving: Stress period: 2 Time step: 35
Solving: Stress period: 2 Time step: 36
Solving: Stress period: 2 Time step: 37
Solving: Stress period: 2 Time step: 38
Solving: Stress period: 2 Time step: 39
Solving: Stress period: 2 Time step: 40
Solving: Stress period: 2 Time step: 41
Solving: Stress period: 2 Time step: 42
Solving: Stress period: 2 Time step: 43
Solving: Stress period: 2 Time step: 44
Solving: Stress period: 2 Time step: 45
Solving: Stress period: 2 Time step: 46
Solving: Stress period: 2 Time step: 47
Solving: Stress period: 2 Time step: 48
Solving: Stress period: 2 Time step: 49
Solving: Stress period: 2 Time step: 50
Solving: Stress period: 2 Time step: 51
Solving: Stress period: 2 Time step: 52
Solving: Stress period: 2 Time step: 53
Solving: Stress period: 2 Time step: 54
Solving: Stress period: 2 Time step: 55
Solving: Stress period: 2 Time step: 56
Solving: Stress period: 2 Time step: 57
Solving: Stress period: 2 Time step: 58
Solving: Stress period: 2 Time step: 59
Solving: Stress period: 2 Time step: 60
Solving: Stress period: 2 Time step: 61
Solving: Stress period: 2 Time step: 62
Solving: Stress period: 2 Time step: 63
Solving: Stress period: 2 Time step: 64
Solving: Stress period: 2 Time step: 65
Solving: Stress period: 2 Time step: 66
Solving: Stress period: 2 Time step: 67
Solving: Stress period: 2 Time step: 68
Solving: Stress period: 2 Time step: 69
Solving: Stress period: 2 Time step: 70
Solving: Stress period: 2 Time step: 71
Solving: Stress period: 2 Time step: 72
Solving: Stress period: 2 Time step: 73
Solving: Stress period: 2 Time step: 74
Solving: Stress period: 2 Time step: 75
Solving: Stress period: 2 Time step: 76
Solving: Stress period: 2 Time step: 77
Solving: Stress period: 2 Time step: 78
Solving: Stress period: 2 Time step: 79
Solving: Stress period: 2 Time step: 80
Solving: Stress period: 2 Time step: 81
Solving: Stress period: 2 Time step: 82
Solving: Stress period: 2 Time step: 83
Solving: Stress period: 2 Time step: 84
Solving: Stress period: 2 Time step: 85
Solving: Stress period: 2 Time step: 86
Solving: Stress period: 2 Time step: 87
Solving: Stress period: 2 Time step: 88
Solving: Stress period: 2 Time step: 89
Solving: Stress period: 2 Time step: 90
Solving: Stress period: 2 Time step: 91
Solving: Stress period: 2 Time step: 92
Solving: Stress period: 2 Time step: 93
Solving: Stress period: 2 Time step: 94
Solving: Stress period: 2 Time step: 95
Solving: Stress period: 2 Time step: 96
Solving: Stress period: 2 Time step: 97
Solving: Stress period: 2 Time step: 98
Solving: Stress period: 2 Time step: 99
Solving: Stress period: 2 Time step: 100
Solving: Stress period: 2 Time step: 101
Solving: Stress period: 2 Time step: 102
Solving: Stress period: 2 Time step: 103
Solving: Stress period: 2 Time step: 104
Solving: Stress period: 2 Time step: 105
Solving: Stress period: 2 Time step: 106
Solving: Stress period: 2 Time step: 107
Solving: Stress period: 2 Time step: 108
Solving: Stress period: 2 Time step: 109
Solving: Stress period: 2 Time step: 110
Solving: Stress period: 2 Time step: 111
Solving: Stress period: 2 Time step: 112
Solving: Stress period: 2 Time step: 113
Solving: Stress period: 2 Time step: 114
Solving: Stress period: 2 Time step: 115
Solving: Stress period: 2 Time step: 116
Solving: Stress period: 2 Time step: 117
Solving: Stress period: 2 Time step: 118
Solving: Stress period: 2 Time step: 119
Solving: Stress period: 2 Time step: 120
Solving: Stress period: 3 Time step: 1
Solving: Stress period: 3 Time step: 2
Solving: Stress period: 3 Time step: 3
Solving: Stress period: 3 Time step: 4
Solving: Stress period: 3 Time step: 5
Solving: Stress period: 3 Time step: 6
Solving: Stress period: 3 Time step: 7
Solving: Stress period: 3 Time step: 8
Solving: Stress period: 3 Time step: 9
Solving: Stress period: 3 Time step: 10
Solving: Stress period: 3 Time step: 11
Solving: Stress period: 3 Time step: 12
Solving: Stress period: 3 Time step: 13
Solving: Stress period: 3 Time step: 14
Solving: Stress period: 3 Time step: 15
Solving: Stress period: 3 Time step: 16
Solving: Stress period: 3 Time step: 17
Solving: Stress period: 3 Time step: 18
Solving: Stress period: 3 Time step: 19
Solving: Stress period: 3 Time step: 20
Solving: Stress period: 3 Time step: 21
Solving: Stress period: 3 Time step: 22
Solving: Stress period: 3 Time step: 23
Solving: Stress period: 3 Time step: 24
Solving: Stress period: 3 Time step: 25
Solving: Stress period: 3 Time step: 26
Solving: Stress period: 3 Time step: 27
Solving: Stress period: 3 Time step: 28
Solving: Stress period: 3 Time step: 29
Solving: Stress period: 3 Time step: 30
Solving: Stress period: 3 Time step: 31
Solving: Stress period: 3 Time step: 32
Solving: Stress period: 3 Time step: 33
Solving: Stress period: 3 Time step: 34
Solving: Stress period: 3 Time step: 35
Solving: Stress period: 3 Time step: 36
Solving: Stress period: 3 Time step: 37
Solving: Stress period: 3 Time step: 38
Solving: Stress period: 3 Time step: 39
Solving: Stress period: 3 Time step: 40
Solving: Stress period: 3 Time step: 41
Solving: Stress period: 3 Time step: 42
Solving: Stress period: 3 Time step: 43
Solving: Stress period: 3 Time step: 44
Solving: Stress period: 3 Time step: 45
Solving: Stress period: 3 Time step: 46
Solving: Stress period: 3 Time step: 47
Solving: Stress period: 3 Time step: 48
Solving: Stress period: 3 Time step: 49
Solving: Stress period: 3 Time step: 50
Solving: Stress period: 3 Time step: 51
Solving: Stress period: 3 Time step: 52
Solving: Stress period: 3 Time step: 53
Solving: Stress period: 3 Time step: 54
Solving: Stress period: 3 Time step: 55
Solving: Stress period: 3 Time step: 56
Solving: Stress period: 3 Time step: 57
Solving: Stress period: 3 Time step: 58
Solving: Stress period: 3 Time step: 59
Solving: Stress period: 3 Time step: 60
Solving: Stress period: 3 Time step: 61
Solving: Stress period: 3 Time step: 62
Solving: Stress period: 3 Time step: 63
Solving: Stress period: 3 Time step: 64
Solving: Stress period: 3 Time step: 65
Solving: Stress period: 3 Time step: 66
Solving: Stress period: 3 Time step: 67
Solving: Stress period: 3 Time step: 68
Solving: Stress period: 3 Time step: 69
Solving: Stress period: 3 Time step: 70
Solving: Stress period: 3 Time step: 71
Solving: Stress period: 3 Time step: 72
Solving: Stress period: 3 Time step: 73
Solving: Stress period: 3 Time step: 74
Solving: Stress period: 3 Time step: 75
Solving: Stress period: 3 Time step: 76
Solving: Stress period: 3 Time step: 77
Solving: Stress period: 3 Time step: 78
Solving: Stress period: 3 Time step: 79
Solving: Stress period: 3 Time step: 80
Solving: Stress period: 3 Time step: 81
Solving: Stress period: 3 Time step: 82
Solving: Stress period: 3 Time step: 83
Solving: Stress period: 3 Time step: 84
Solving: Stress period: 3 Time step: 85
Solving: Stress period: 3 Time step: 86
Solving: Stress period: 3 Time step: 87
Solving: Stress period: 3 Time step: 88
Solving: Stress period: 3 Time step: 89
Solving: Stress period: 3 Time step: 90
Solving: Stress period: 3 Time step: 91
Solving: Stress period: 3 Time step: 92
Solving: Stress period: 3 Time step: 93
Solving: Stress period: 3 Time step: 94
Solving: Stress period: 3 Time step: 95
Solving: Stress period: 3 Time step: 96
Solving: Stress period: 3 Time step: 97
Solving: Stress period: 3 Time step: 98
Solving: Stress period: 3 Time step: 99
Solving: Stress period: 3 Time step: 100
Solving: Stress period: 3 Time step: 101
Solving: Stress period: 3 Time step: 102
Solving: Stress period: 3 Time step: 103
Solving: Stress period: 3 Time step: 104
Solving: Stress period: 3 Time step: 105
Solving: Stress period: 3 Time step: 106
Solving: Stress period: 3 Time step: 107
Solving: Stress period: 3 Time step: 108
Solving: Stress period: 3 Time step: 109
Solving: Stress period: 3 Time step: 110
Solving: Stress period: 3 Time step: 111
Solving: Stress period: 3 Time step: 112
Solving: Stress period: 3 Time step: 113
Solving: Stress period: 3 Time step: 114
Solving: Stress period: 3 Time step: 115
Solving: Stress period: 3 Time step: 116
Solving: Stress period: 3 Time step: 117
Solving: Stress period: 3 Time step: 118
Solving: Stress period: 3 Time step: 119
Solving: Stress period: 3 Time step: 120
Solving: Stress period: 4 Time step: 1
Solving: Stress period: 4 Time step: 2
Solving: Stress period: 4 Time step: 3
Solving: Stress period: 4 Time step: 4
Solving: Stress period: 4 Time step: 5
Solving: Stress period: 4 Time step: 6
Solving: Stress period: 4 Time step: 7
Solving: Stress period: 4 Time step: 8
Solving: Stress period: 4 Time step: 9
Solving: Stress period: 4 Time step: 10
Solving: Stress period: 4 Time step: 11
Solving: Stress period: 4 Time step: 12
Solving: Stress period: 4 Time step: 13
Solving: Stress period: 4 Time step: 14
Solving: Stress period: 4 Time step: 15
Solving: Stress period: 4 Time step: 16
Solving: Stress period: 4 Time step: 17
Solving: Stress period: 4 Time step: 18
Solving: Stress period: 4 Time step: 19
Solving: Stress period: 4 Time step: 20
Solving: Stress period: 4 Time step: 21
Solving: Stress period: 4 Time step: 22
Solving: Stress period: 4 Time step: 23
Solving: Stress period: 4 Time step: 24
Solving: Stress period: 4 Time step: 25
Solving: Stress period: 4 Time step: 26
Solving: Stress period: 4 Time step: 27
Solving: Stress period: 4 Time step: 28
Solving: Stress period: 4 Time step: 29
Solving: Stress period: 4 Time step: 30
Solving: Stress period: 4 Time step: 31
Solving: Stress period: 4 Time step: 32
Solving: Stress period: 4 Time step: 33
Solving: Stress period: 4 Time step: 34
Solving: Stress period: 4 Time step: 35
Solving: Stress period: 4 Time step: 36
Solving: Stress period: 4 Time step: 37
Solving: Stress period: 4 Time step: 38
Solving: Stress period: 4 Time step: 39
Solving: Stress period: 4 Time step: 40
Solving: Stress period: 4 Time step: 41
Solving: Stress period: 4 Time step: 42
Solving: Stress period: 4 Time step: 43
Solving: Stress period: 4 Time step: 44
Solving: Stress period: 4 Time step: 45
Solving: Stress period: 4 Time step: 46
Solving: Stress period: 4 Time step: 47
Solving: Stress period: 4 Time step: 48
Solving: Stress period: 4 Time step: 49
Solving: Stress period: 4 Time step: 50
Solving: Stress period: 4 Time step: 51
Solving: Stress period: 4 Time step: 52
Solving: Stress period: 4 Time step: 53
Solving: Stress period: 4 Time step: 54
Solving: Stress period: 4 Time step: 55
Solving: Stress period: 4 Time step: 56
Solving: Stress period: 4 Time step: 57
Solving: Stress period: 4 Time step: 58
Solving: Stress period: 4 Time step: 59
Solving: Stress period: 4 Time step: 60
Solving: Stress period: 4 Time step: 61
Solving: Stress period: 4 Time step: 62
Solving: Stress period: 4 Time step: 63
Solving: Stress period: 4 Time step: 64
Solving: Stress period: 4 Time step: 65
Solving: Stress period: 4 Time step: 66
Solving: Stress period: 4 Time step: 67
Solving: Stress period: 4 Time step: 68
Solving: Stress period: 4 Time step: 69
Solving: Stress period: 4 Time step: 70
Solving: Stress period: 4 Time step: 71
Solving: Stress period: 4 Time step: 72
Solving: Stress period: 4 Time step: 73
Solving: Stress period: 4 Time step: 74
Solving: Stress period: 4 Time step: 75
Solving: Stress period: 4 Time step: 76
Solving: Stress period: 4 Time step: 77
Solving: Stress period: 4 Time step: 78
Solving: Stress period: 4 Time step: 79
Solving: Stress period: 4 Time step: 80
Solving: Stress period: 4 Time step: 81
Solving: Stress period: 4 Time step: 82
Solving: Stress period: 4 Time step: 83
Solving: Stress period: 4 Time step: 84
Solving: Stress period: 4 Time step: 85
Solving: Stress period: 4 Time step: 86
Solving: Stress period: 4 Time step: 87
Solving: Stress period: 4 Time step: 88
Solving: Stress period: 4 Time step: 89
Solving: Stress period: 4 Time step: 90
Solving: Stress period: 4 Time step: 91
Solving: Stress period: 4 Time step: 92
Solving: Stress period: 4 Time step: 93
Solving: Stress period: 4 Time step: 94
Solving: Stress period: 4 Time step: 95
Solving: Stress period: 4 Time step: 96
Solving: Stress period: 4 Time step: 97
Solving: Stress period: 4 Time step: 98
Solving: Stress period: 4 Time step: 99
Solving: Stress period: 4 Time step: 100
Solving: Stress period: 4 Time step: 101
Solving: Stress period: 4 Time step: 102
Solving: Stress period: 4 Time step: 103
Solving: Stress period: 4 Time step: 104
Solving: Stress period: 4 Time step: 105
Solving: Stress period: 4 Time step: 106
Solving: Stress period: 4 Time step: 107
Solving: Stress period: 4 Time step: 108
Solving: Stress period: 4 Time step: 109
Solving: Stress period: 4 Time step: 110
Solving: Stress period: 4 Time step: 111
Solving: Stress period: 4 Time step: 112
Solving: Stress period: 4 Time step: 113
Solving: Stress period: 4 Time step: 114
Solving: Stress period: 4 Time step: 115
Solving: Stress period: 4 Time step: 116
Solving: Stress period: 4 Time step: 117
Solving: Stress period: 4 Time step: 118
Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:18
Elapsed run time: 0.288 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
Method 3: Pass timearrayseries a dictionary of anything that could be passed to rcha.tas.initialize
rch_array = 0.0000001 * np.ones((15, 10))
rch_array[0, 0] = 0.0001
tas = {
0.0: 0.000002,
200.0: rch_array,
"filename": "method3.tas",
"time_series_namerecord": "rcharray_1",
"interpolation_methodrecord": "LINEAR",
}
rcha = flopy.mf6.modflow.mfgwfrcha.ModflowGwfrcha(
model, timearrayseries=tas, recharge="TIMEARRAYSERIES rcharray_1"
)
sim.write_simulation()
success, buff = sim.run_simulation(silent=True, report=True)
if success:
for line in buff:
print(line)
else:
raise ValueError("Failed to run.")
# clean up for next example
model.remove_package("rcha")
writing simulation...
writing simulation name file...
writing simulation tdis package...
writing solution package ims_-1...
writing model child_pkgs...
writing model name file...
writing package dis...
writing package ic...
writing package npf...
writing package oc...
writing package sto...
writing package ghb...
writing package ts_0...
writing package ts_1...
writing package ts_2...
writing package rcha_0...
writing package tas_0...
MODFLOW 6
U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
VERSION 6.7.0.dev2 (preliminary) 05/12/2025
***DEVELOP MODE***
MODFLOW 6 compiled Aug 15 2025 15:35:02 with GCC version 13.3.0
This software is preliminary or provisional and is subject to
revision. It is being provided to meet the need for timely best
science. The software has not received final approval by the U.S.
Geological Survey (USGS). No warranty, expressed or implied, is made
by the USGS or the U.S. Government as to the functionality of the
software and related material nor shall the fact of release
constitute any such warranty. The software is provided on the
condition that neither the USGS nor the U.S. Government shall be held
liable for any damages resulting from the authorized or unauthorized
use of the software.
MODFLOW runs in SEQUENTIAL mode
Run start date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:18
Writing simulation list file: mfsim.lst
Using Simulation name file: mfsim.nam
Solving: Stress period: 1 Time step: 1
Solving: Stress period: 2 Time step: 1
Solving: Stress period: 2 Time step: 2
Solving: Stress period: 2 Time step: 3
Solving: Stress period: 2 Time step: 4
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Solving: Stress period: 2 Time step: 112
Solving: Stress period: 2 Time step: 113
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Solving: Stress period: 2 Time step: 117
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Solving: Stress period: 2 Time step: 119
Solving: Stress period: 2 Time step: 120
Solving: Stress period: 3 Time step: 1
Solving: Stress period: 3 Time step: 2
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Solving: Stress period: 3 Time step: 99
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Solving: Stress period: 3 Time step: 101
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Solving: Stress period: 3 Time step: 112
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Solving: Stress period: 3 Time step: 117
Solving: Stress period: 3 Time step: 118
Solving: Stress period: 3 Time step: 119
Solving: Stress period: 3 Time step: 120
Solving: Stress period: 4 Time step: 1
Solving: Stress period: 4 Time step: 2
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Solving: Stress period: 4 Time step: 50
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Solving: Stress period: 4 Time step: 57
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Solving: Stress period: 4 Time step: 73
Solving: Stress period: 4 Time step: 74
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Solving: Stress period: 4 Time step: 76
Solving: Stress period: 4 Time step: 77
Solving: Stress period: 4 Time step: 78
Solving: Stress period: 4 Time step: 79
Solving: Stress period: 4 Time step: 80
Solving: Stress period: 4 Time step: 81
Solving: Stress period: 4 Time step: 82
Solving: Stress period: 4 Time step: 83
Solving: Stress period: 4 Time step: 84
Solving: Stress period: 4 Time step: 85
Solving: Stress period: 4 Time step: 86
Solving: Stress period: 4 Time step: 87
Solving: Stress period: 4 Time step: 88
Solving: Stress period: 4 Time step: 89
Solving: Stress period: 4 Time step: 90
Solving: Stress period: 4 Time step: 91
Solving: Stress period: 4 Time step: 92
Solving: Stress period: 4 Time step: 93
Solving: Stress period: 4 Time step: 94
Solving: Stress period: 4 Time step: 95
Solving: Stress period: 4 Time step: 96
Solving: Stress period: 4 Time step: 97
Solving: Stress period: 4 Time step: 98
Solving: Stress period: 4 Time step: 99
Solving: Stress period: 4 Time step: 100
Solving: Stress period: 4 Time step: 101
Solving: Stress period: 4 Time step: 102
Solving: Stress period: 4 Time step: 103
Solving: Stress period: 4 Time step: 104
Solving: Stress period: 4 Time step: 105
Solving: Stress period: 4 Time step: 106
Solving: Stress period: 4 Time step: 107
Solving: Stress period: 4 Time step: 108
Solving: Stress period: 4 Time step: 109
Solving: Stress period: 4 Time step: 110
Solving: Stress period: 4 Time step: 111
Solving: Stress period: 4 Time step: 112
Solving: Stress period: 4 Time step: 113
Solving: Stress period: 4 Time step: 114
Solving: Stress period: 4 Time step: 115
Solving: Stress period: 4 Time step: 116
Solving: Stress period: 4 Time step: 117
Solving: Stress period: 4 Time step: 118
Solving: Stress period: 4 Time step: 119
Solving: Stress period: 4 Time step: 120
Run end date and time (yyyy/mm/dd hh:mm:ss): 2025/08/15 15:36:18
Elapsed run time: 0.286 Seconds
WARNING REPORT:
1. NONLINEAR BLOCK VARIABLE 'OUTER_HCLOSE' IN FILE 'child_pkgs_test.ims'
WAS DEPRECATED IN VERSION 6.1.1. SETTING OUTER_DVCLOSE TO OUTER_HCLOSE
VALUE.
2. LINEAR BLOCK VARIABLE 'INNER_HCLOSE' IN FILE 'child_pkgs_test.ims' WAS
DEPRECATED IN VERSION 6.1.1. SETTING INNER_DVCLOSE TO INNER_HCLOSE VALUE.
Normal termination of simulation.
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