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Documentation
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About
- Getting Started & Use Cases
- Support
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What's new
- Organise and communicate on a digital canvas
- New sidebar to help organize your analyses and queries
- Sliding contours
- Ny skyfallsanalys och en ännu bättre marktäckekarta
- New land cover map for Finland
- Depths in the depression map
- New Danish land cover map with more classes
- National Swedish High-Resolution Impervious Surface Mapping
- Watershed tool updated with even better descriptions of catchment characteristics
- National Flash Flood Map with Infiltration and Drainage for Denmark
- Add your own WMS layers to SCALGO Live
- Enriched building data in Denmark
- National hydrological corrections and Land Cover for Poland
- National hydrological corrections for Norway
- Updated Impervious Surface Mapping for Denmark
- National hydrological corrections and updated local data for Finland
- Fast and intuitive tools to work with infiltration and land use
- Improvements to vector imports and exports
- National Danish groundwater model
- New Sweden high-resolution model
- New powerful depression map and more analyses visualization options
- Introducing Modelspaces: Get your hydrodynamic models into SCALGO Live
- Use case videos
- Access a EA flood maps inside SCALGO Live
- Improved map export
- New powerful ways to edit the elevation model
- Better coloring of flooding layers and sea-level depth filtering
- National Danish High-Resolution Impervious Surface Mapping
- National access for local and regional organizations
- Simpler, more powerful downloads
- Customize Layer Transparency
- Hydrological corrections and new data in Sweden
- Improved export functionality
- Access a wide range of authorative data inside SCALGO Live
- Importing VASP data
- Measure gradients, undo edits, and Norway updates
- New terrain edit features, soil balance information and much more...
- Browse historical orthophotos in SCALGO Live
- Emergency planning with sea-level rise from national forecast data
- Detailed information about watershed composition
- Better styling of imported vector layers
- New Danish Elevation Model
- Work with gradients in the profile widget
- Flood risk screening from rivers and flow paths
- New workspace tool: Raise and lower terrain uniformly
- Importing LandXML TINs, LAS point clouds
- New model in Sweden
- Side slopes on workspace features
- Drag and drop enhancements
- Swedish contour maps
- Subsurface basins and sewage drains in workspaces
- New Interface
- Volume information for watersheds and flow paths
- New powerful tool for emergency response and coastal flood prevention
- Denmark: New flash flood map
- Sweden: Geodatasamverkan setting for Swedish users
- Import custom terrain models
- New Hydrological Corrections
- Elevation contours now available
- Download orthophotos as JPEG and PNG
- Subsurface structures in workspace
- Sea-levels in terrain profiles
- Updated orthophotos
- Models and analysis update
- User interface updates
- User interface updates
- GeoDanmark/FOT data, Matrikelkortet now available
- New flash flood map
- Download of risk polygons
- Updated orthophotos
- Nationwide hydrology on the new DHM/2015 model now available
- New flash flood map computation available with watershed download
- DHM/2015 variants and sea-levels now available nationwide
- DHM/2015 now available nationwide
- Hydrology on the new DHM/2015 model now available
- New DHM/2015 Model - now with buildings
- New DHM Model
- Watershed Tool
- Ad hoc layers
- Nationwide contour maps for all countries
- User Interface
- Canvas
- Analysis
- Workspaces
- Streams and Flow
- Modelspaces
- Country Specific
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About
Editing the terrain – Subsurface edits
Workspaces let you change your terrain model and observe the effects on the analyses. This section discusses the subsuface terrain editing tools that, although not directly changing the terrain, allows you to change how water flows in your workspace.
For an overview of the workspace editing process please consult the introduction page.

Subsurface structure
Creates a subsurface structure between the two end points of the path. The edit does not change any elevation on the terrain, but it allows water to be transported between the end points without affecting the terrain between them. The subsurface structure will transport an unlimited amount of water, but it does not store any water itself – it has zero volume.
Usage example: Model culverts and underpasses without obstructing flow over the top of the structure.
Subsurface basin and sewage drains

Creates a sink point on the surface connected to a subsurface basin with a specified volume. This volume can either be typed in manually or set to an event-specific runoff volume from the watershed of the sink point. This runoff volume is determined by first clicking query runoff next to the volume input field and then, selecting the sink point position on the map. The event determining the runoff volume can be varied by dragging the rain slider which appears when clicking query runoff.
Usage example: Model the effect of a subsurface basin or a sewage drain with a guaranteed service level (e.g. a sewage drain dimensioned to handle the runoff volume for a 15mm rain event).