1. GIS in Water Resources Fall 2011 Groundwater Tools for GIS

2. Built-in Tools Time-enabled Layers Groundwater and Hydrology Toolsets

3. Arc Hydro Groundwater Tools Groundwater Analyst MODFLOW Analyst Subsurface Analyst - 3D Features - 2D Cross Sections

4. Groundwater Analyst Import and Manage Well Data Point and Click Graphing Tool Compute Time Series Statistics

5. MODFLOW Analyst Import and Export MODFLOW models Run MODFLOW from ArcGIS

6. Subsurface Analyst 3D Features 2D Cross Sections

7. Subsurface Analyst – 3D CreateGeoSectionsCreateGeoSections Create GeoVolumes Create and Edit Borehole Data

8. Representing 2D cross sections XS2D Component

9. Outline You can create 2D cross sections in ArcGIS Cross sections are made of real GIS features Cross sections use a (S, Z) coordinate system Subsurface Analyst helps you create cross sections within ArcMap Manage cross sections within a geodatabase

10. Subsurface visualization Layers of 3D volumes that are largely unseen ? ? Visualizing the subsurface can be challenging

11. Cross sections …And interpret the rest We can sample the subsurface… A A’ A A’ Wells Section A-A’ Cross sections help us understand local geology Map

12. GIS datasets Spatial and attribute relationships tie features together … Borehole log Section lines Wells Raster surfaces …Creating the connectivity we need to construct meaningful cross sections from GIS datasets You can create cross sections from GIS datasets Geologic features

13. GIS features Works with your ArcGIS tools Layer symbology, attributes, geodatabase storage, editing… real GIS features Cross section features are real GIS features

14. XS2D component Part of the Arc Hydro Groundwater data model Included in the hydrostratigraphy component XS2D feature classes have a XS2D prefix They exist in a special coordinate system that translates vertical coordinates so they can be viewed in ArcMap Additional data: XS2D_Line, XS2D_Polygon, XS2D_Point…

15. Common cross section features Cross Section Panel Divider BorelineBoreline Major Grid Minor Grid PanelPanel

16. Additional features You can add additional features using the Arc Hydro Groundwater Tools Saltwater Interface Surficial Geology Or create your own features and annotation

17. Section line features Cross sections belong to a section line A set of cross section feature classes per section line…  Simple 2D polylines  Define the cross section in map view

18. XS2D Catalog Central part of the XS2D component Keeps track of feature classes in all cross sections SectionID is a key attribute = HydroID of a SectionLine feature

19. Cross section data A A’ A A’ Adding Nearby Wells Built from Standard GIS Operations Like ‘Select By Location’ and ‘Intersect’ Add data by proximity to the section line

20. Cross section data A A’ AA’ Adding Outcrops Add data by overlaying layers with the section line

21. Cross section coordinates Cross sections use a (Distance, Elevation) coordinate system And includes vertical exaggeration… Each system is unique to the cross … Each system is unique to the cross section… x y S Z S

22. Data frame The is the canvas where cross sections are drawn The Data Frame is the canvas where cross sections are drawn Edit Print Draft

23. 2D and 3D transformations You can convert from 2D to 3D and back again

24. Building cross sections You can create your own workflows for building cross sections

25. Example workflow 1. Select wells – wells are related with borehole data Tip: Select wells within a distance of a section line

26. Example workflow 2. Run the cross section wizard Click on the Section Line Choose:  Features to Include  Vertical Exaggeration  Grid Line Spacing Output is a new cross section data frame with features created

27. Example workflow 3. Import additional data

28. Example workflow 4. Sketch panels using standard ArcMap editing tools

29. Example workflow 5. Arrange the layout Add: Legends Annotation More Cross Sections Set: Data Frame Properties Grid Line Appearance

30. Additional workflow – image registration Start from existing cross section images. Load and register the images to an existing SectionLine. Wizard helps create necessary features (grid lines, panel dividers, panels) based on the image registration process.

31. Image registration wizard Register the image using vertical and horizontal lines

32. Image registration wizard Result is a new data frame with registered image + XS2D feature classes

33. Key points  You can create 2D cross sections in ArcGIS  Cross sections are made of real GIS features - Can take advantage of all the ArcMap capabilities  Cross sections use a (S, Z) coordinate system  Subsurface Analyst helps you create cross sections – basic tools, XS2D Wizard, Image registration

34. Water levels in a cross section XS2D Animation

35. Creating 2D cross sections Subsurface Analyst Demo