GMS:Map to MODFLOW with TINs

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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
Post-processing
MODFLOW Display Options
MODFLOW Post-Processing Viewing Options
Reading a MODFLOW Simulation
Tutorials
MODFLOW 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

At times, instead of assigning values at the upstream and downstream ends of the arc, it is useful to assign a property using a surface. This can be done in GMS using a TIN.

TIN assigned to river stage.

When the arc is discretized onto the model grid, the cells that intersect the arc are found. Then the boundary condition property is interpolated from the TIN to the cell centers.

TIN assigned to river stage.

Beginning with version 9.1, it is also possible to assign TINs with transient datasets. This gives the option to have a surface that changes with time assigned to a boundary condition property. The times associated with the TIN dataset can be in date/time format or relative time format.

Transient TIN assigned to river stage.

There is a user preference for treating the transient data on the TIN as a step function or as a continuous curve. This option is selected when performing the Map→MODFLOW operation under the Transient TIN datasets section.

User preference for transient TIN datasets.