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The Connected Linear Network (CLN) | The Connected Linear Network (CLN) process was developed for MODFLOW-USG to model one dimensional connected features that are much smaller than a groundwater flow model's cells.<ref name="tm6-A45">{{citation | ||
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|first1=Sorab | |first1=Sorab | ||
| 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: | SMS |
| Other: | UZF1 |
The Connected Linear Network (CLN) process was developed for MODFLOW-USG to model one dimensional connected features that are much smaller than a groundwater flow model's cells.[1] The CLN Process can be used to replace multi-cell wells that would use the MNW1 or MNW2 package in other versions of MODFLOW.
A CLN well can be added to a conceptual model by creating a point using the "Wells (CLN)" type. The geometry of the well screen can be set using the Use screen attribute for a single vertical screen. Otherwise, the generated well nodes include the grid layers specified for the coverage by its default layer range. For transient models, the CLN well node IBOUND values are disabled until the first stress period with a non-zero flow rate.
The CLN process values can be edited in the CLN Process dialog reached through the MODLFOW | Optional Packages | CLN – Connected Linear Network menu command. The dialog contains tables that can be accessed by selecting a table from the list at the left of the dialog.
A detailed description of CLN process input is available with the MODFLOW-USG documentation available at the USGS MODFLOW-USG website.
The MODFLOW CLN Wells Package is similar to the WEL Package dialog. It is reached through the MODFLOW | Optional Packages | CLN Wel – CLN Well menu command. It allows CLN well flow rates to be viewed and edited, and CLN wells can also be deleted. The Cell ID table column is the CLN Process node ID of the well.
| GMS – Groundwater Modeling System | ||
|---|---|---|
| Modules: | 2D Grid • 2D Mesh • 2D Scatter Point • 3D Grid • 3D Mesh • 3D Scatter Point • Boreholes • GIS • Map • Solid • TINs • UGrids |  |
| Models: | FEFLOW • FEMWATER • HydroGeoSphere • MODAEM • MODFLOW • MODPATH • mod-PATH3DU • MT3DMS • MT3D-USGS • PEST • PHT3D • RT3D • SEAM3D • SEAWAT • SEEP2D • T-PROGS • ZONEBUDGET | |
| Aquaveo | ||
