GMS:MODFLOW-2005: Difference between revisions

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Revision as of 00:36, 3 January 2017

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
v • e

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. Switch from one to the other at any time.

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

Below are tables of some of the available input and output files for MODFLOW 2005.

  • For more information on these files see the manual.
Required Input Files
Name Description
MFN MODFLOW Name File
GLO Global Listing File
DIS Discretization File
OC Process Output Control Option File
BA6 Basic Package Global Options File
Solver Package File
Name Description
DE4 Direct
GMG Geometric Multi-Grid
PCG Preconditioned Conjugate-Gradient
SIP Strongly Implicit Procedure
SOR Slice-Successive Overrelaxation
Input Flow Package Files
Name Description
BCF Evapotranspiration Segments
HUF Evapotranspiration
LPF Layer Property Flow
UPW Unsaturated-Zone Flow
Optional Package Files
Name Description
ASP PEST Advanced Spacial Parameterization
CHD Time-Variant Specified-Head
DRN Drain
DRT Drain Return
EVT Evapotranspiration
ETS Evapotranspiration Segments
GAG Gage
GHB General Head Boundary
HFB Horizontal Flow Barrier
LAK Lake
PARAM PEST Parameter Variables
RCH Recharge
RIV River
SFR Streamflow-Routing
STR Stream-Routing
SUB Subsidence
SWI Seawater Intrusion
UZF Unsaturated-Zone Flow
WEL Process Well
Observation Input Files
Name Description
OBS Main Observation Process Input
DROB Drain Observation
CHOB Constant-Head Flow Observation Input
Output Files
Name Description
MFS MODFLOW Super File
MFW GMS MODFLOW World File
MFR GMS MODFLOW Result Index File
PRJ Projection
CSV Cell Summary Comma Separated Value Excel
HFF Head and Flow File Link to MT3DMS
H5 Hierarchal Data Format (HDF5) Array & List Data
LMT Link Modular Transport (MT3DMS)
M2P MODFLOW Pest
PARAM Parameter Information
P00 Error File
Output Results Files
Name Description
CCF Cell-to-Cell Aquifer Flow
CCF2 Cell-to-Cell Stream Reach Outflow
DRW Drawdown
GLO Global Listing
HED Head Output
OUT Output
Output Package Files
Name Description
MNW Multi-Node Well
MNW2 Multi-Node Well Version 2
MNWI Multi-Node Well Information
SWIBUD Seawater Intrusion Package Budget
SWIZETA Sewater Intrusion Package Zeta Surface
Output Data Exchange Files
Name Description
_W Weighted Residuals
_WW Weighted Equivalents & Weighted Observation
_WS Weighted Residuals and Simulated Equivalents
_R Unweighted Residuals
_OS Observed Values and Simulated Equivalents
_B Data Exchange File
_NM Weighted Residuals and Probability Plotting

External Links


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