MODFLOW Analyst

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MODFLOW Analyst
MODFLOW Analyst is a suite of ArcGIS tools for importing, visualizing, and creating MODFLOW models. The tools support importing existing MODFLOW models into a geodatabase and visualizing the inputs and simulated results of the model (e.g. heads, drawdown, and flow). MODFLOW Analyst also supports the creation of new models leveraging the ability to use GIS features to construct model input. MODFLOW Analyst tools are based on a public domain MODFLOW Data Model (MDM).

MODFLOW Analyst tools are grouped into the following toolsets: Features, Import, Stress Periods, Tables, Utilities, and Views:

Geoprocessing Tools

  • Image:Toolbox.png MODFLOW Analyst
    • Image:Toolset.png Features:
      • Image:Tool.png Boundary To DIS: Builds MODFLOW Discretization tables, based on the MODFLOW Data Model, from a boundary polygon, and the number of rows and columns in the MODFLOW model.
      • Image:Tool.png Boundary To DIS Refine Points: Builds MODFLOW Discretization tables, based on the MODFLOW Data model, from a boundary polygon and refine points. The number of rows and columns will fit the boundary and will be refined around wells or other specified refine points, typically resulting in a MODFLOW grid with rows and columns that are not evenly spaced. The number of rows and columns in the Discretization tables will be automatically determined.
      • Image:Tool.png Build Boundary Rectangle: Builds a polygon representing the boundary of a MODFLOW simulation.
      • Image:Tool.png Create MODFLOW Cell2D: Creates Cell2D polygon features from MODFLOW discretization tables and a boundary polygon.
      • Image:Tool.png Create MODFLOW Cell3D: Creates Cell3D multipatch features representing model cells.
      • Image:Tool.png Create MODFLOW Node2D: Creates Node2D features from a Cell2D layer. MODFLOW is a finite-difference model, and uses the center of a Cell polygon as the location of a Cell node.
      • Image:Tool.png Create MODFLOW Node3D: Creates Node3D features from MODFLOW discretization tables and a boundary polygon. Node3D point features are z-enabled, and are located at the center of each MODFLOW cell.
      • Image:Tool.png DIS To Boundary: Creates a boundary polygon using user inputs (origin, and angle) and information on the discretization of the MODFLOW grid.
    • Image:Toolset.png Import:
      • Image:Tool.png Add Output File: Stores a MODFLOW output file (head, drawdown, ccf, etc.), or a path to the file, in the geodatabase. The file can be stored as a blob and compressed.
      • Image:Tool.png Fill Output Arrays: Reads the files listed in the OutputFiles table, and (depending on the files found) populates one or more of the following tables: OutputTime, OutputHead, OutputDrawdown and OutputFlow.
      • Image:Tool.pngImport MODFLOW Model: Imports a MODFLOW model into a geodatabase and creates the Boundary, Cell2D, and Node2D feature classes. The model connects the following tools in sequence: Import MODFLOW Tables, DIS To Boundary, Create MODFLOW Cell2D, Create Nodes From Cell2D.
      • Image:Tool.png Import MODFLOW Output: Reads the result of a MODFLOW run and populates the Output tables (OutputFiles, OutputTimes, OutputHead, OutputDrawdown, OutputFlow).
      • Image:Tool.png Import MODFLOW Tables: Imports a MODFLOW model into a geodatabase (based on the MODFLOW Data Model). Existing MODFLOW Data Model tables (with the default names) will be deleted from the geodatabase before being imported.
    • Image:Toolset.png Stress Periods:
      • Image:Tool.png Add SP Start and End: Calculates the beginning and end date/time of MODLOW stress periods and populates the appropreate beginning and end date fields in the StressPeriods table of the MODFLOW Data Model.
    • Image:Toolset.png Tables:
      • Image:Tool.png Create Cell Index Table: Creates the CellIndex table from MODFLOW discretization information. Each record in the CellIndex table represents a cell within a MODFLOW grid and is given an I, J, K, IJ, and IJK value.
      • Image:Tool.png Delete MODFLOW Tables: Deletes MODFLOW Data Model tables from a geodatabase. Only tables with the default names are deleted.
    • Image:Toolset.png Utilities:
      • Image:Tool.png Map MODFLOW Data: A script that supports a workflow for mapping MODFLOW package/array data. The script connects the following tools in sequence: IBOUND To Polygon, Make MODFLOW Feature Layer, IDW Interpolation, and Contour.
    • Image:Toolset.png Views:
      • Image:Tool.png IBOUND To Polygon: Creates an active area polygon layer from a Cell2D layer. The extent of the active area is determined by an IBOUND array.
      • Image:Tool.png Make MODFLOW Feature Layer: Joins a MODFLOW layer (Cell2D, Node2D, Cell3D, or Node3D) and table together, resulting in a new layer based on an SQL query.

Toolbar Tools and Commands

  • MODFLOW Filters: Performs definition queries on the selected feature layer based on MODFLOW Data Model attributes. Filters included:
    • K filter: for filtering by the grid layer index.
    • Stress Period ID (SPID) filter: filters a transient layer based on the stress period ID.
    • Time Filter: filters a layer by a specified date/time value.

See also

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