User:Jcreer/MODFLOW 6 Changes for GMS 10.6

Simulations Options

New Simulation

Simulation Run Queue

IMS Package

MODFLOW 6 Right-Click Menu

In the Project Explorer, right-clicking on MODFLOW 6 simulation brings up a menu with several commands. Some of these commands are common to other Project Explorer right-click menus. Others are unique to the simulation right-click menus. Some of these unique commands are:

• " Simulation Data"
  • Simulation Run Queue – Opens the Simulation Run Queue dialog which shows all current simulation runs.
• " MODFLOW 6 Simulations"
  • New Simulation – Creates a new MODFLOW 6 simulation in the Project Explorer. This simulation will not contain any of the packages in any existing simulations and therefor the packages must be added. Also, creating a new simulation using this method requires linking a UGrid to the simulation.
  • Simulation Run Queue – Opens the Simulation Run Queue dialog which shows all current simulation runs.
  • Save All and Run – Saves all MODFLOW 6 simulations in the project and exports all files needed for the model run. It then will launch the Simulation Run Queu dialog and begin the model runs for all simulations in the project.
• Model
  • Simulation Run Queue – Opens the Simulation Run Queue dialog which shows all current simulation runs.
  • New Package – Opens a sub-menu listing all available packages that can be added to the simulation. Selecting a package will add it to the simulation. Some packages cannot be added until certain packages have already been added to the simulation and therefore will not be available until the prerequisite package has been added.
  • Check Simulation – Checks the simulation for model errors and brings up the Model Check dialog if any errors are found.
  • Save Simulation – Saves the simulation and exports all files needed for the model run.
  • Run Simulation – Starts the simulation model run and opens the Simulation Run Queue dialog.
  • Save Simulation and Run – Saves the simulation and exports all files needed for the model run. It then will launch the Simulation Run Queu dialog and begin the model runs for the simulation.
  • Read Solution

Unsupported Features

In GMS, some features of MODFLOW 6 are not yet supported or only have minimal support. These include:

• MODFLOW 6 features
  • Only support for one SOLUTIONGROUP in the mfsim.nam file
  • ‘NONE’ for cellid in SFR PACKAGEDATA block is not supported
  • IPRN variable for arrays
  • Advanced package output files
• GMS interface functionality
  • Conceptual model approach for some packages
  • Observations coverage
  • Cell properties for array-based RCH and EVT packages

The MODFLOW 6 export option does not function with projects that are incompatible with MODFLOW 6. Projects with unsupported features or parameters will not be successfully exported.

Not all MODFLOW packages are supported in MODFLOW 6. The following table shows the correlation between MODFLOW 6 packages and packages from previous versions of MODFLOW.

MODFLOW 6 supported packages	Equivalent Mf2k5/USG package
CHD, DRN, GHB, RIV, WEL	CHD, DRN, GHB, RIV, WEL
DIS, DISV, DISU, TDIS	DIS, DISU
EVT, RCH	EVT, ETS, RCH
GNC	GNC
IC	BAS
LAK	LAK
MAW	MNW2
NPF, STO	BCF, HUF, LPF, UPW
SFR	SFR
UZF	UZF
MVR, GWF, OBS	Not supported
Not Supported	DRT, GAGE, MNW1, MNWI, STR, SUB, SWI, OBS, HOB, CHOB, RVOB, STOB, DROB