GMS:SWI Package

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MODFLOW
Pre-processing
MODFLOW Commands
Building a MODFLOW Model
Map to MODFLOW
Calibration
Packages Supported in GMS
Saving a MODFLOW Simulation
Importing MODFLOW Files
Unsupported MODFLOW Features
Run MODFLOW
Post-processing
MODFLOW Display Options
MODFLOW Post-Processing Viewing Options
Reading a MODFLOW Simulation
Tutorials
Packages
Flow: BCF6, HUF, LPF, UPW
Solvers:

DE4, GMG, NWT, PCG,

PCGN, LMG, SIP, SOR,

SMS
Other:

BAS6, BFH, CHD1, CLN,

DRN1, DRT1, EVT1, ETS1,

GAGE, GHB1, GNC, HFB1,

HUF, LAK3, MNW1, MNW2,

OUT1, RCH1, RIV1, SFR2,

STR1, SUB1, SWI2, WEL1,

UZF1

The MODFLOW SWI2 package is an optional package in MODFLOW-2005. It can be used to model 3D "vertically integrated variable-density groundwater flow and seawater intrusion in coastal multiaquifer systems."[1]

GMS provides an interface to the SWI2 package. The package can be turned on in the MODFLOW Packages dialog, accessible from the MODFLOW Global/Basic Package dialog. The package dialog can be accessed from the main MODFLOW menu or by right-clicking on the MODFLOW item in the Project Explorer.

A, cross section through a coastal aquifer with freshwater flowing from right to left and discharging seaward of the coastline; B, cross section through a coastal aquifer discretized using a single model layer. The position of the freshwater-seawater interface is also shown on A and B.[1]

Notes