Processing Modflow Release Notes

Click here for details of Processing Modflow 11.
Pre-release Beta of Version 11.0.5 (September 30, 2024)

Tested PM and PESTPP-IES to generate calibration realizations of large regional models.
Added support to PESTPP-IES that can be used to generate calibration realizations for uncertainty analysis.
Added the Pilot Points input method and Kriging method for editing aquifer parameters.
Added the Pilot Points method and Kriging method for model calibration with PEST, BeoPEST, and PESTPP-IES. Pilot Points parameters and zone-wise parameters may be used at the same time.
Array multipliers of recharge flux and maximum ET rates may be used as calibration parameters.
Added the Polyline input method to the Horizontal Flow Barrier package.
Added a time-series tool for selecting calibration targets (with the Ramer–Douglas–Peucker algorithm and other methods) that can be used with PEST.
Significantly improved the interface of the Streamflow Package.
Significantly improved the interface of PEST
Significantly improved the transfer speed on opening and saving project files.
Implemented various performance improvements across the application.
Fixed some bugs of the supported model codes.

Version 11.0.4 (released on July 11, 2022; updated on October 13, 2022)

Fixed bugs in the Subsidence Package import function.
Fixed bugs that in the Multi-Node Well Package import function.
Fixed bugs that prevented GSFLOW in Version 11.0.3 from working correctly.

Version 11.0.3 (released on July 4, 2022)

Enhanced data manipulation tools
Enhanced calibration capabilities using multiple-layer head/drawdown observations, lake stages, and stream discharges.
Performance improvements with large model result files
Fixed bugs in some data input dialog boxes for the calculation of surface depression storage with GSFLOW.
Fixed a bug in the Shapefile with the shapefile type PolygonZ.
Fixed a bug that may result in incorrect IUZFBND after vertical grid refinement.

Version 11.0.2 (released on October 10, 2021)

Bug fixes.
Updated GSFLOW from version 2.1.0 to 2.2.0.
Added Cartesian Coordinate System.
Added function to support Coordinate Transformation of shapefiles when the Cartesian Coordinate System is activated.
Fixed a bug in the HFB Package that may set the values of Hydraulic Characteristic of barriers to zero when importing the package data from an input file.
Fixed bugs that may cause unexpected behavior when storing a project to the same opened PM project (.pmproj) file with File > Save As or File > Save As Reduced Size.

Version 11.0.1 (September 30, 2021)

Added support to the Multi-Node Well 2 Package.
Added an Auto Layer Number function that can automatically move package features (such as drains) to a model layer by comparing model layer top/bottom elevations with the package-specific elevation.
Added a Target Area function to the Modify Data and Copy Data dialog boxes. The Target Area function allows users to restrict the data manipulation functions to the selected area defined by a polygon or view.
Enhanced data manipulation tools.
Updated to comply with secure links protocols.
Fixed a bug that caused an incorrect number of MXSS in the input file for the MT3D Sink & Source Mixing Package.
Fixed a bug that prevented SEAWAT from running correctly when the SIP solver is used.
Fixed a bug that may prevent SEAWAT from running due to the missing MSVCR100.DLL file.
Fixed a bug that prevented the time marks of MODPATH simulation results from being displayed.
Fixed a bug that may cause unexpected behavior after changing the THKMIN value in the MT3D table of the Transport Settings dialog box.
Fixed a crash bug in the Transport Settings dialog box after changing values in the VSC table.
Fixed a bug when in the drawdown contours that show calculated head instead of drawdown.
Fixed a crash bug when opening a pmproj file that contains drawdown contours.
Fixed bugs that may cause multiple RCH, EVT, and/or ETS packages to be displayed.
Fixed the model data import function that does not work correctly when the multiplier file of an imported model contains and uses the “FUNCTION” keyword.

Version 11.0.0 (December 06, 2020. Initial Release of Version 11):

Added support to GSFLOW. The interface has been successfully tested and applied on a watershed model with daily time steps for a period of 16 years.
Added a function to import matrix values to area(s) defined by polygon(s).
Added a function to export endpoints from a MODPATH simulation in addition to pathlines, timemarks, and starting points.
Added a function to allow for import well package input file with the Options block (used by the MODFLOW-NWT) that contains the keyword SPECIFY and the value PSIPRAMP. The TABFILES of the OPTIONS block remains unsupported.
Improved the import functionalities of the WellFile (in Tools > Package > Append Wells). It can now use screen interval depths in addition to the screen interval elevations.
Improved load and save speed of Processing Modflow project files
Fixed a bug in the UZF1 package interface that did not work correctly during the grid refinement.
Fixed a crash bug in the Model Inspection tool that may crash when inspecting data of the well package.
Fixed a bug in the Data Import tool. The bug may lead to program crash when importing a 3D array to an aquifer property.
Fixed a bug in the Data Export tool. When exporting initial concentration (or other species-dependent matrices) to a 3D array file, a value of zero exported for all layers except the current layer.
Fixed a bug in MT3D-USGS. The bug incorrectly sets constant-concentration cells (ICBUND<0) to active (variable) concentration cells in the second and subsequent stress periods.

Version 10.0.24 (March 24, 2021)

Fixed bugs that may cause multiple RCH, EVT, and/or ETS packages to be displayed.

Version 10.0.23 (January 3, 2020)

Added the column-cross section tool for visualizing model cross section and/or to edit model data on column cross section view
Improved the pathline tool to highlight a pathline when mouse hovers over it.
Added functions to allow for on-map georeferencing of the model grid by dragging four grid corners.
Added functions to zoom to a cell with column/row or a point with coordinates.
Added a function to allow for using calculated hydraulic head as starting head.
The WellFile (in Tools > Package > Append Wells) can now include optional Concentration data for injection wells.
Fixed a bug in the UZF package that caused the UZF flow terms in both standard and compact formats to the cell-by-cell flow file.
Fixed a bug in the pathline tool. The End Point of a pathline was deleted after removing the corresponding particle.
Fixed a bug in the row cross-section tool, where the model dry cells are not updated correctly after changing to another row.
Fixed a bug in the model data inspection tool for the Flow and Head Boundary Package. The bug prevented that package to perform inspection.
Fixed a bug in the SFR2 Package importing function. The bug occurred when a negative value is assigned to NSTRM of the input file to the SFR2 package.
Fixed a bug in MODFLOW model import function. A model may not be imported correctly, if its name file contains file type DATA that points to external data files and that such external files contain more than one data array.
Updated/added documents of tutorial 1 and tutorial 3.
Works on examples are in progress.

Version 10.0.22 (August 28, 2019)

Fixed a bug in the Drain Package importing tool that does not correctly import Drain Package input file from a model that is not stored in the FREE format.
Fixed a bug in the Append Wells tool (Tools > Package > Append Wells) that incorrectly assign multiple instances of wells to transient models.
Fixed a bug in the ASCII Raster Import tool that prevented ASCII raster files to be correctly imported.
Fixed bugs and improved the interface to the UZF package.
Recompiled MODPATH (32- and 64-bit versions) with the latest Intel FORTRAN Compiler to vastly improve their execution speed (compared with the original versions distributed by the USGS.)
Improved the MODPATH interface.
Other minor bug fixes.

Version 10.0.21 (July 14, 2019):

Added functions to display geo-referenced raster maps (bitmaps).
Added functions to prevent crash of PMX when importing a Well File containing erroneous data.
Added the display of particle end points based on the result of MODPATH.
Added Date/Time column to the Excel files for exporting/importing observation data.
Fixed bugs in the function for writing the concentration of FHB cells to the input file for the SSM package of MT3D.
Fixed bugs that may cause incorrect polyline or polygon being selected or deleted when the display of some polylines/poplygons or their vertices is turned off.
Fixed a bug in the cell value display that occurred after applying polygon data to cells within the Aquifer Property dialog box.
Fixed a bug in the popup display of values of flow vectors. The bug occurred when the column or row interval for flow vector display is not 1.
Fixed a bug what occurred when importing observation values from Excel files with more than 65534 rows of observation records.
Fixed a bug that may occur when importing polylines from a saved polyline file.

Version 10.0.20 (2/17/2019):

Added support to the Lake (LAK3) Package.
Added support to the Lake Transport (LKT) Package of MT3D-USGS.
Added 8-point cross-section support to the SFR2 Package.
Fixed bugs in the function for generating the PEST template file of the SFR2 package.
Fixed bugs in the import functions for CHD, DRN, DRT, FHB, GHB, RES, RIV, and WEL Packages. Those bugs were introduced in the version 10.0.19.
Updated PEST and BEOPEST from version 14 to version 16. Click here for details about PEST
Fixed bugs and in the row-cross section where cell values may not be modified or displayed correctly for SWI2 and IBS packages.

Version 10.0.19 (1/1/2019):

Added support to the Subsidence and Aquifer-Compaction (SUB) Package.
Improved the model import function to allow for arrays with comma-delimiters in addition to space-delimiters.
Fixed bugs in the model import function that did not work, if a model contains a parameter value (PVAL) file.
Improved the Modify Data dialog box, allowing users to specify a Target Area where cell values should be modified.
Improved data entry dialog boxes of the UZF1 package and fixed bugs in the function that generates input file to the UZF1 package.
Improved data entry dialog boxes of the MNW1 package. Added import function of the MNW1 package.
Fixed bugs in the model grid refinement functions.
Fixed bugs in the ETS1 package where the PXDP and PETM values near the end of the modflow.ets file were written as integer (rounded off to zero) instead of floating point values.
Fixed a bug in the import function of the RCH package that failed to import the Layer Indicator array IRCH.

Version 10.0.18 (11/12/2018):

Added functions to display cells that went dry during a simulation.
Corrected the default path to the executable of MODFLOW-2005.
Fixed a bug that prevented PEST from working correctly as the bug added multiple entries of “OC 118 MODFLOW.OC” to the Name file modflow.nam.

Version 10.0.17 (11/07/2018):

Added support to the Streamflow Transport (SFT) Package of MT3D-USGS.
Added functions for copying data between model parameters, e.g., from HK to VK.
Added a “Start the data editor in the first stress period” check box in the Preferences dialog box. If this box is checked, the data editor will always start in the first stress periodl. If this box is not checked, the data editor will start in the current stress period. The latter was the default behavior of previous versions of PMX.
Improved the Import Data function to allow for importing matrix values to most flow packages (such as DRN, WEL, RIV).
Improved the Output Control dialog box of MODFLOW.
Fixed a bug in the Upstream Weighting Package of MODFLOW-NWT, where the layer types are always defined as confined regardless of user’s settings.
Fixed a bug in the function that imports the input data of the Newton Solver of MODFLOW-NWT.
Fixed bugs in the import functions of the CHD, DRN, DRT, GHB, RIV, and WEL Packages. Although this error rarely happens, the bugs may prevent the auxiliary data, such as DRNBELEV used by SEAWAT, from being imported correctly.
Fixed bugs in the interface to the MODFLOW SWI2 package.

Version 10.0.16 (9/24/2018):

Added support to the Streamflow-Routing (SFR2) Package.
Added tutorial 1.
Updated MODFLOW-NWT from v.1.1.3 to v.1.1.4
Modified the interface of Flow and Head Boundary (FHB) Package for concentration data input
Fixed a bug in the import function of the SSM package of MT3D, where concentration data associated with the FHB package could not be imported.
Fixed bugs in the Copy Cell Data function of the Row Cross Section tool when editing the STR Package or Wetting Threshold.
Fixed bugs in the hightlight cells function of the Row Cross Section tool when editing certain packages.
Fixed bugs in the Add Particles dialog box that failed to add multiple layers of particles on circles.
Fixed bugs in the MODPATH interface that was not able to assign recharge and/or ET to a particular cell face.
Fixed bugs in the MODPATH interface where the elevation of pathlines, time points and start locations were incorrectly calculated resulting in incorrect display on the cross section window.
Fixed a bug in the Observation dialog box. Observation data could not be assigned to new observation points unless the dialog box is closed and reopened.

Version 10.0.15 (7/14/2018):

Added the display of the zeta surface of SWI2 (i.e., the interface between seawater and freshwater) to the cross-section window.
Added potentiometric surface or groundwater level (based on head result of MODFLOW) to the cross-section window.
Added color-filled contours of input parameters and model results to the cross-section window.
Added flow vectors to the cross-section window.
Added pathlines to the cross-section window.
Added Animation and Print Image tools to the cross-section window.
Fixed the measure tool that did not work correctly when the map is rotated (i.e., when the Rotation Tool button is depressed).
Fixed a bug in the code that generates grid specification file for PEST. The bug prevented the PEST utility program MOD2SMP.EXE from running correctly, and the it is not possible for PEST to complete parameter estimation process. Only models with regularly spaced grid column and row widths are affected.

Version 10.0.14 (6/20/2018):

Added support to the Seawater Intrusion 2 Package.
Added the time-step control to the cross-section tool and greatly improved the display speed of the cross-section.
Added a new parameter type “Transient Sandbox”, where matrix data may be assigned to several stress periods. Contour maps at arbitrary time points between those periods can be created based on linearly interpolation of the available matrix data.
Added a “remove wells” tool that removes wells of all stress periods with flow rates lie within a given range.
Added all examples of the Seawater Intrusion 2 Package to the Setup.
Added all examples of SEAWAT 2000 and SEAWAT V.4 to the Setup.
Fixed bugs in the interface to the MODFLOW UZF1 package.
Fixed a bug that may cause importing of the BCF package to fail if the model has more than 40 layers and the BCF input file is saved in the formatted format.
Fixed a bug that prevented MT3D from running correctly if the Sorption type in the Reaction Package is “Dual-domain mass transfer (without sorption)”.
The MT3D Sink/Source Mixing Package is now always included in the simulation if the flow model is transient.
Fixed a crash bug in the MT3D > View > Production Concentration Summary.
Fixed a bug in the Setup that installed the executable of MT3DMS (mt3dms5b.exe) to an incorrect folder.
Fixed a bug in the startup process of PMX where a message box is displayed behind the splash window and thus blocked the application from starting up. This bug appears only when a Standard windows user starts PMX that is installed through per-machine installation.

Version 10.0.13 Per-Machine Installation (5/25/2018):

Released 32-bit and 64-bit setup files for per-machine installation.

Version 10.0.13 (5/2/2018):

Added a window to display cross-section along model rows and to allow for editing model data.

Added functions to allow for exporting model results to ESRI ASCII Raster and 3D Modflow Array files.
Fixed a bug in the Stress Period Data dialog box that may cause random behavior after copying data from a stress period to another.
Fixed a bug in the import function of the WEL package from input files that are saved in the FREE format. The bug prevented pumping wells from being imported.
Fixed bugs in the export function of DRN, RIV, and STR packages.

Version 10.0.12 (4/13/2018):

Cell data may be displayed without entering the data editor.
Greatly improved the display speed of online maps.
Fixed a bug in data export function that prevented exporting data from several MODFLOW packages.
Replaced the concentration dialog of the FHB package with Concentration Time Series dialog box that allows for entering time series data.
Modified FHB package of MODFLOW and SSM package of MT3D to use the concentration time series data.
Fixed memory leaks.
Improved the stability of caption display during animation
Fixed a bug in the time-series and scatter charts where the calculated data are not updated correctly after changing the layer or coordinates of the observation points.

Version 10.0.11 (2/28/2018):

Added Tools > Package > Append Package
Added a tool to import WellFile in Tools > Package > Append Wells. A Well file stores long/lat coordinates and screen intervals of wells, as well as their pumping/injection rates per stress period. It is a quick way to translate pumping/injection schedule to the model.
Added Models > MT3D/SEAWAT > View > Concentration Summary
Added Models > MT3D/SEAWAT > View > Production Concentration Summary
Improved the stability of the licensing procedure
Fixed a bug that prevented result contours based on the cell-by-cell flow data from being created correctly.

Version 10.0.10 (2/17/2018):

Added Tools > Data > Matrix dialog box with a table to display cell values
Added Models > MODFLOW > View > Volume Summary
Added Models > MT3D/SEAWAT > View > Mass budget summary
Fixed a bug in the initialization function of the MT3D/SEAWAT Concentration Line Chart and Scatter Chart.
Fixed a bug that prevented concentration contour maps (based on results of MT3D/SEAWAT) from being created correctly when opening PMProj files.
Improved the performance of time series and scatter charts.
Fixed a bug in the input file writer for the SSM package of MT3D where -999999999 maybe written as the concentration value of point sources.

Version 10.0.9 (2/1/2018):

Fixed a bug that prevented the “Highlight mask opacity” from working correctly.
Fixed a bug that prevented cell values of certain parameters from being displayed correctly after moving the grid cursor to another layer while “layer-copy” is on.

Version 10.0.8 (1/28/2018):

Added a function to allow for exporting grid data to the ESRI ASCII Raster format
Modified the ESRI ASCII Raster format import function to allow for importing raster files with different row and column sizes.
Fixed a bug in data import function that failed when importing a ERSI ASCII Grid or Comma-Separated Value file along with a projection file.
Fixed a bug in the data export function that may cause lower-precision floating point values to be used in exported files.
Made minor changes to the MODFLOW Output control dialog box: when the value for HDRY is changed, inform PM to rebuild BCF, LPF, and UPW files before running model.

Version 10.0.7 (1/16/2018):

Fixed bug in import package functions of the DRN, RCH, RES, and RIV packages if the input files are saved in the FIXED format.
Fixed bug in contour drawing functions.

Version 10.0.6 (1/12/2018):

Minor functional and cosmetic bug fixes.

Version 10.0.5 (1/9/2018)

Stability improvements.

Version 10.0.4 (1/6/2018)

Updated to MODPATH from 7.1 to 7.2.001. Added support to “StopZone” of MODPATH.
Stability improvements.

Version 10.0.3 (1/1/2018)

Initial Public Release of Processing Modflow X

Simcore Software

Processing Modflow Release Notes