DynamicFlood computations need information about the surface roughness for each of the land cover classes available in the Scalgo Live land cover map.  We use so-called Manning numbers to parameterize this. Today, we updated the Manning numbers for all countries where DynamicFlood is available, except Sweden which was recently updated independently. The new values reflect a generally more conservative approach to surface roughness.

The Mannings numbers can be seen in the surface roughness section of the documentation, but for your convenience we have replicated them below:

The values were chosen based on an evaluation and synthesis of relevant literature (Arcement, 1989, Papaioannou et al, 2018, HEC-RAS 2D User's Manual, N-V240 Vannhåndtering, MSB2260).

This change was also recorded in the DynamicFlood changelog.

How does this release affect your computations?

The new numbers will be applied to all new workspaces, created after the update. Workspaces created before the update will retain the previous numbers.

If you need to create a new workspace that uses the same numbers as an old workspace, you can import the Manning numbers from the old workspace (using the "+" icon under Select Manning in the Run hydrodynamic engine dialog).

Likewise, if you would like to update an old workspace to use the new numbers, you can import the numbers from a new workspace.

It is now possible to share your Workspaces and Modelspaces in a view-only mode where the spaces you share can not be modified by the people you share it with.  

We're introducing this change alongside a new user interface for sharing. Instead of going to your account dashboard,  you can now share your Workspaces and Modelspaces directly inside Scalgo Live. This new user interface also makes it easier to share Workspaces and Modelspaces with many people at the same time by simply inserting a list of email addresses.

A user with view-only access to a Workspace or Modelspace, has the following restrictions:

• Can not share the space with additional users.
  
• Can not duplicate the space.
• Workspaces: 
  • Can not create terrain edits or alter properties of existing edits.
  • Can not change runoff functions in the Flash Flood Map.
• Modelspaces: 
  • Can not change any event settings or add/remove layers to the Modelspace.
    

For more information about Workspace permission levels, please consult the relevant page in the documentation.

We have changed some important things around Core+ DynamicFlood in Sweden:

• Rain events now differ based on the region they are in. 
• We have updated the surface roughness parameters to match MSB recommendations.
• We updated the default maximum infiltration rate in sewered areas from 36 mm/hr to 21 mm/hr to align with sewer dimensioning practice in Sweden.

These changes only affect new workspaces, so you must create a new workspace for these changes to take effect. Your old workspaces remain unchanged.

For more information, please read the accompanying blog post (in Swedish) or check the Core+ DynamicFlood changelog.

Scalgo Live on saanut merkittävän päivityksen: rankkasadeanalyysit huomioivat nyt koneoppimisen avulla tuotetun maanpeitemallin ja pintamaalajien vaikutuksen veden imeytymiseen. Lisäksi kaupunkialueilla analyysit tarjoavat arvion hulevesiviemärien vaikutuksesta.

Tule mukaan webinaariin!

4. lokakuuta 2024 klo 10.00-11.00 Pietu Pankkonen, Suomen markkinapäällikkö, esittelee, miten veden imeytymisen huomioivat analyysit on tuotettu ja miten voit hyödyntää niitä työssäsi.

Rekisteröidy nyt

Lyhyt introvideo

Blogikirjoitus veden imeytymisestä: Uusi päivitys SCALGO Liveen - Veden imeytyminen nyt osana rankkasadeanalyysejä.

Today we have truly opened up a world of Scalgo Live. You can now access full Scalgo Live setups for all 12 countries where these are currently available, covering more than 10 million square kilometres. For all other regions, you will be able to upload your own data, making it easy to work in Scalgo Live anywhere in the world! 

We are not stopping here, we are always working on adding more countries to Scalgo Live. These will also be available to all users as they are released.

For more information about this big step for Scalgo Live, please see the accompanying blog post.

In Core+ DynamicFlood, the default rain events used in Norway are now local design rains based on rainfall statistics from the region the workspace is in, with climate factors available based on the recommendations from the authorities. For more information, read the accompanying blog post.

Furthermore, Core+ DynamicFlood users in all countries can now see the timestep of running simulations in real time and obtain an estimate of the model's completion time. Please read the blog post for more information about this new feature.

Interested in how a particular sea-level rise affects the buildings in a region? You can now download building flood risk information for the sea-level analysis, similar to what has long been possible for the Flash Flood Map. This is available from the sea-level analysis - you simply need to select the "buildings" tap in the download window.  The result is a set of building polygons in the affected area with additional fields providing the following information:

• The minimum sea-level at which any part of the building interior is in contact with the sea.
• The length of the wetted perimeter at the selected sea-level. The wettede perimeter is the part of the buildings perimeter in contact with the sea.
• The wetted area, found by combining the wetted perimeter with the depth of the water adjacent to the building to get the area of the building perimeter in contact with the sea.
• The maximum water depth along the building perimeter, as well as the coordinates where this depth can be found.

Alongside the annotated building polygons you also get a layer of lines denoting the wetted perimeter of each building, these perimeters are annotated with the same flood-related information as the building polygons. It makes it easy to highlight the part of the buildings that are at risk of flooding.

In Workspaces, you can now get contour maps for terrains you design, and buildings can be removed and modified as editable Objects, see more information in the accompanying blog post.

Contour lines are now generated as part of all Workspace computations. When you create your terrain design, the contours are updated to describe the new terrain accordingly. The contours are available in many different contour intervals, controlled via the contour interval slider that also exists for the national contour maps.

Furthermore, we have improved the way buildings are included in Workspaces. Previously, buildings were implicitly included by raising their elevation in the terrain model, making them unmodifiable terrain edits. Now, they are regular edits that can easily be removed or modified. This has been done by introducing a new group of editing tools called Objects. The existing subsurface tools are considered objects, and are now available in this group.

Please read the blog post for more information about this release.

We have just released some exciting features for Modelspaces in SCALGO Live.  You can now query information about water flow, volume, and depth from your dynamic flood simulations.

We have also created a whole new set of visualisation styles to animate the dynamics of velocity.  The old styles are still available, should you need them.

Please read more in the accompanying blog post.

Today we announce the availability of a nationwide high-resolution land cover map for SCALGO Live in Germany. The map, produced by SCALGO, is based on machine learning techniques and has a high resolution of 20 cm.

It is available as a standalone layer in the Land cover category in the library. 

The map is fully integrated into SCALGO Live Germany and is, for instance, used to show aggregate land cover information for watershed queries. For more information please see the complete release announcement.

German cadastral maps

As part of this release we are also adding aggregated cadastral data to SCALGO Live Germany. The new layer, called Flurstücke, is available in the ALKIS category. We have also computed aggregated land cover information for each land parcel, you will find this layer in the Land Cover category.

Note that only a select number of federal states are available in the Flurstücke layer, please consult the documentation for more information about this.