GMS:MODFLOW-2005

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Revision as of 23:17, 28 June 2016 by Dharker (talk | contribs) (Added MODFLOW Input/Output Files (Needs organizing/sorting/possibly editing))
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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

Starting at GMS version 8.0, GMS supports MODFLOW 2005.

Choosing MODFLOW-2000 or MODFLOW-2005

Choosing to use MODFLOW-2000 or MODFLOW-2005 is done in the MODFLOW Global Options dialog. At any time you can switch from one to the other.

MODFLOW Global Option dialog

Changes in MODFLOW-2005

The following list shows changes in MODFLOW-2005 from MODFLOW-2000.

1. SOR1 Solver
  • MODFLOW-2005 no longer supports the SOR1 Solver.
2. PCG2 Solver
  • MODFLOW-2005 replaces the DAMP variable with DAMPPCG and DAMPPCGT variables [1]. These two new variables allow different damping factors to be applied separately to steady-state and transient stress periods.
3. UZF Package
4. LPF package
  • MODFLOW-2005 provides more options for the LPF Package. Pictures below show the LPF package options supported in MODFLOW-2000 vs MODFLOW-2005.
MODFLOW 2000 LPF Package Options
MODFLOW 2005 LPF Package Options
5. PES and PEST
  • PES is not available in MODFLOW 2005. Automated calibration in GMS is handled using PEST.

MODFLOW 2005 Files

Here are tables of some of the available Input and Output files for MODFLOW 2005.

  • For more information on these files see the manual
Input Files
Name Description
MFN MODFLOW Name File
GLO Global Listing File
LMT Link-MT3DMS Package
OBS Main Observation Process input file
CHOB Constant-Head Flow Observation Input File
RIV River Package
SFR Streamflow-Routing Package
STR Stream-Routing Package
SUB Subsidence Package
ASP PEST Advanced Spacial Parameterization Package
GHB General Head Boundary Package
DRT Drain Return Package
DROB Drain Observation File
HFB Horizontal Flow Barrier Package
ETS Evapotranspiration Segments Package
EVT Evapotranspiration Package
UZF Unsaturated-Zone Flow Package
DIS Discretization File
BA6 Basic Package
LPF Layer Property Flow Package
SWI Seawater Intrusion Package
OC Process Output Control Option
RCH Recharge Package
WEL Process Well Package
CHD Time-Variant Specified-Head Package
PCG Preconditioned Conjugate-Gradient Package
Output Files
Name Description
MFS MODFLOW Super File
MFR GMS MODFLOW Result Index File
MFW GMS MODFLOW World File
CSV Cell Summary Comma Separated Value Excel File
MNW Multi-Node Well Package
MNW2 Multi-Node Well Package Version 2
MNWI Multi-Node Well Information Package
MFW GMS MODFLOW World File
PRJ Projection File
HFF Head and Flow File Link to MT3DMS
H5 Hierarchal Data Format (HDF5) Array & List Data File
SWIBUD Seawater Intrusion Budget File
SWIZETA Sewater Intrusion Zeta Surface File
HED Head Output File
_W Weighted Residuals Data Exchange File
_WW Weighted Equivalents & Weighted Observation
_WS Weighted Residuals and Simulated Equivalents
_R Unweighted Residuals Data Exchange File
_OS Observed Values and Simulated Equivalents File
_B Data Exchange File
_NM Weighted Residuals and Probability Plotting file
OUT Output File
CCF Cell-to-Cell Aquifer Flow File
CCF2 Cell-to-Cell Stream Reach Outflow File
GLO Global Listing File
HED HDF5 Head File