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Complementary calculations of runoff from natural grounds and dimensioning…

  • 23 October, 20179 October, 2020

Complementary calculations of runoff from natural grounds and dimensioning rainfall depth as well as residence times

Calculation of runoff from natural ground based on flow data has been implemented in the Design Flow box.
This calculation can be performed when the design flow from natural land prior to exploitation is to be calculated or when the influence of the surrounding natural environment on the design flow from an urban area is to be calculated.

Dimensioning rain depth (mm) is now calculated for the designed facilities, to e.g. compare to a possible condition that the facility should contain a certain rainfall of, for example, 10, 20 or 25 mm.
Residence times at e.g. average runoff or maximum outflow is calculated to be compared with conditions that the residence time should be at least 12 hours or the like.
In this way, the dimensions of the facility can be adapted to different given conditions.
Rainfall depths and residence times are now presented in the results report.

News

Upgrade database server “projects” StormTac Web

  • 17 October, 20179 October, 2020

Upgrade database server “projects” StormTac Web

On Sunday night (2017-10-22), we start a migration of project databases into a new upgraded server.
During three evenings (Sunday-Tuesday) we will migrate project databases.
The job will start at 22:00 and last until 23:59. During this time, StormTac Web will be unavailable.

The following have been done.
– Improved performance on the hardware.
– Upgraded operating system.
– Newer database engine.
– Extended backup.
– Other improvements for operation and maintenance.

All in all, to maintain security, performance and accessibility.

In the future, backups are saved 30 days back in time instead of 5 days.
In the next step, we will upgrade the Web server.

Recent Posts

  • Uncertainty inherent to a conceptual model StormTac Web simulating urban runoff quantity, quality and control 11 February, 2021
  • Distribution of responsibilities – Distributed acceptable loads and required treatment between stakeholders within the catchment 12 December, 2020
  • Updated irreducible concentrations in StormTac database and in StormTac Web 27 November, 2020
  • Completed database with updated stormwater concentrations during different seasons and months 27 November, 2020
  • Updated database regarding new references, stormwater concentrations, reduction efficiencies and concentrations for overflow water 23 November, 2020
  • Updated database with a large number of new volume-weighted land-use specific concentration data and BMP reduction efficiencies 6 July, 2020

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