Release Note 2014



Welcome to MIKE FLOOD Release 2014.

MIKE FLOOD is a flexible user interface framework for dynamic linking of MIKE by DHI's one-dimensional and two-dimensional flood modeling packages. MIKE FLOOD is the integrated flood modelling package for rivers (MIKE 11), overland flow (MIKE 21), and urban drainage (MIKE URBAN's MOUSE engine). This combination ensures maximum flexibility by allowing users to model some areas in 2D detail, while other areas can be modelled in 1D.

In this Release Note you will find information about new features of MIKE FLOOD and what you need to know in order to install and get started with Release 2014.

System requirements

The recommended minimum system requirements are:

Operating systems

Fully supported operating systems *
Windows 7 Professional Service Pack 1 (32 and 64 bit),Windows 8 Pro (64 bit), Windows Server 2008 R2 Standard Service Pack 1 (64 bit). For the latest update please refer to the FAQ.

Non-supported but partially tested operating systems **
Windows XP Professional Service Pack 3 (32 bit), Windows 8 Pro (32 bit), Windows Server 2012 Standard (64 bit). For the latest update please refer to the FAQ.
Processor 2.0 GHz Intel Pentium or higher and compatibles, or equivalents
Memory (RAM) 2 GB (or higher)
Hard disk 40 GB (or higher)
Monitor SVGA, resolution 1024x768 in 16 bit colour
Graphics adapter 64 MB RAM (256 MB RAM or higher recommended), 24 bit true colour***
Media DVD drive compatible with dual-layer DVDs is required for installation
File system NTFS
Software requirements .NET Framework 3.5 SP1 and .NET Framework 4.0 (Full Profile)

* Fully supported operational systems are systems that have been tested in accordance with MIKE by DHI's Quality Assurance procedures and where warranty and software maintenance agreement conditions apply.

** Non-supported but partially tested operating systems are systems, which are not officially supported by the MIKE by DHI software products. These operating systems have only undergone very limited testing for the purpose of MIKE by DHI software, but the software and key features are likely to work. Installation of MIKE by DHI software on a non-supported operating system is done so at the user's own risk. The MIKE by DHI software warranty and software maintenance agreement conditions do not apply for unsupported operating systems and DHI is under no obligation to provide assistance or troubleshooting for cases where the software is being used on a non-supported operating system.

*** MIKE 21 Flow Model FM utilising GPU requires a Nvidia graphics cards with compute capability 2.0 or higher. See Please note that some of these graphics cards have varying performance in single compared to double precission calculations.

Please note that single user installations are not allowed on server operating systems. Also, when running a fully supported operating system as a 'guest operating system' on a virtualisation platform, it is automatically downgraded to a non-supported operating system under the conditions provided above.


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To install MIKE FLOOD, please choose MIKE Zero in the ‘MIKE by DHI Setup’ dialogue box that appears when inserting the MIKE software 2014 DVD or executing the Setup.exe file from the downloaded installation files. Press the ‘Install’ button to begin installation.

The setup programme will automatically install all necessary files and folders on your computer. Additionally, a ‘MIKE by DHI 2014’ entry is created, which contains icons for various MIKE Zero utilities and links to documentation.

Licence file & dongle

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To use MIKE FLOOD in licenced mode, please follow these steps:

  1. You can retrieve the MIKE by DHI software licence file (DhiLicense.dat) via the Internet. This requires a working Internet connection and a valid e-mail address. The licence file can be retrieved in two ways:
    • During installation of MIKE by DHI software
    • After installation of the MIKE by DHI software, by launching the DHI License Updater through the start menu
  2. To retrieve your licence file during installation of MIKE by DHI software, select ‘Local’ when prompted to ‘Select license type’. In the following dialogue box, select ‘Internet’. At the end of the installation process, you will be prompted to insert your DHI dongle. Insert the dongle and follow the on-screen instructions.
  3. To update your licence file using the License Updater, simply launch "Start -> Programs -> MIKE by DHI 2014 -> DHI License Updater" and follow the on-screen instructions. On Windows 8, search for DHI License Updater.
  4. Alternatively, the licence file can simply be copied in \Program files\DHI\2014\License or Program files(x86)\DHI\2014\License.
  5. After completed installation, you should ensure that your hardware key is attached to the system.

Product invocation

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To start MIKE FLOOD, go to Start -> Programs -> MIKE by DHI 2014 -> MIKE Zero or search for MIKE by DHI 2014 and select ‘MIKE Zero’. Then you can select MIKE FLOOD from within the MIKE Zero Shell.

Starting MIKE FLOOD without a DHI configured hardware key and valid licence files will cause the programme to run in demo mode. If this happens, a message box will inform you during programme initialisation. When running in demo mode, MIKE FLOOD supplies full access to all editors, computational engines and editing facilities. However, restrictions apply to the setups that can actually be executed as a model simulation.


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For general support, please refer to our FAQ.

If you experience any difficulties, or if you have any questions, you can contact the Software Support Centre by mail, e-mail, phone or fax:

Software Support Centre
Agern Allé 5
DK-2970 Hørsholm
Tel: +45 4516 9333
Fax: +45 4516 9292

Or you can find your local support centre with support in your local language here.

New features

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Every new release of MIKE FLOOD consists of new modules, new features and/or corrections to problems or significant inconsistencies discovered in previous releases. Below, please find short descriptions of the most significant news in Release 2014 for MIKE Zero in general and MIKE FLOOD specifically.

Known defects & workarounds

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Fixed issues

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A service pack includes fixes to inconveniences and errors and minor modifications to the official release.

Note: MIKE FLOOD include the coupling between MIKE 21, MIKE 11 and MIKE URBAN and issues fixed for these products individually may be relevant for MIKE FLOOD as well. Some fixes are repeated below, but it is advised to check the individual release notes for all these products in addition.

Please note that the service packs are accumulative, i.e. corrections and fixes released with a previous service pack are included in the newest service pack as well.

Release 2014 Service Pack 3



Error/Inconvenience/New feature


MIKE Zero (generic)
  • Bathymetry Editor: Issue with long response time when manipulating raw data and background data
  • Mesh Generator: Automatic placement of polygon marker during import of xyz file could fail and be located at boundary of polygon
  • MIKE Zero shell doesn't work with SP2 for 5 languages
Result Viewer New feature: Save Vectors to Shape file
The vector field is exported to a shape file as polylines (with no arrow head).
The polylines include the entire vector field for the current time step and will have the scale as shown in the Result Viewer.
Note: polylines can be displayed by arrow symbols in e.g. ArcMap.
MIKE Zero Toolbox
  • Rotate Grid: Resulting orientation was slightly inaccurate when cropping dfs2 data in LON/LAT
  • Statistics: tool fails when calculating statistics on subdomain of an dfs2 file
  • Time series from 2D file: Error in extracted velocities from derived items when P-Q flux are null
Unit Base Group Added new EUM types as well as new EUM units to existing EUM types
  • Potential problems in ECO Lab templates with nested if-then-else statements with more than two nesting levels
  • HeavyMetal and Xenobiotics templates can lead to mass balance errors
Engine Memory problem for large models caused problems in creating log-files and mis-leading warning messages on 'Error detected from M21 in MU setup'
Engine MIKE FLOOD FM: Warning message issued for for link points not being in the mesh eventhough mesh has been created with file
Engine MIKE FLOOD Single grid: Correction of low flow link discharge implemented in SP1 has been further refined.
Engine MIKE FLOOD FM: An issue has been found in error-handling of the engine which occasionally causes simulations to continue running even though an error has occurred in e.g. the MIKE 11 simulation.
Engine MIKE FLOOD FM GPU: An issue has been found which prevent the user to specify which GPU to use in a coupled simulation


Release 2014 Service Pack 2


Error/Inconvenience/New feature


MIKE Zero (generic)
  • Result Viewer: Error in rendering of box contour with transparency
  • Grid Series Editor: Error in static item when cropping in domain
  • Data Manager: Crash when working on dfs2 and dfs3 files
  • E-mail feature: limitations preventing feature to work
MIKE Zero Toolbox New GIS functionality: Shp2xyz.
A new executable for extraction of point, polyline and polygon information from shape files.
Must be executed using MzLaunch. See FAQ for details.
MIKE Zero Toolbox
  • TS Batch Conversion: issue with valid units in conversion template
  • Mesh Converter: Clarification of functionality and limitations
  • Mesh Converter: Incorrect use of Map projection coordinates using Non-UTM
MIKE 21 HD Inundation statistics:
  • new item: max Current Speed
  • new item: Current Direction at max Current Speed
  • new item: Time at max Current Speed
  • existing item Max H now includes water depths lower than flooding depth
  • Issue reading nested model setup with 'Inland Flooding' enabled
  • Possible crash for QH boundary condition at an initially dry boundary
MIKE 21 HD The Volume balance calculation (output in HTML) does not include the component extracted by use of Infiltration method.
MIKE 21 HD FM New feature: Time varying bed resistance
MIKE 21 HD FM New feature: Possibility to start multi-GPU simulations
The computations can be performed using multiple GPU's. The multiple GPU approach is based on the domain decomposition concept, where the communication between the processors is done using MPI
MIKE 21 HD FM Using GPU: Error in mass budget when using precipitation
Couple Editor (j,k)-coordinates are not displayed for XFLOW=0 and YFLOW=0 link types when loaded from previous version of MIKE FLOOD
Couple Editor Crash when loading setup with coupling to MIKE URBAN in 64 bit version of MIKE FLOOD
Couple Editor Urban coupling: Extending of .couple file and the MIKE FLOOD GUI to support QH curves in M21-MIKE URBAN couplings.  
The "Urban Link Options" table extended with new columns:   'Height', 'Freeboard', 'Qh table'


Release 2014 Service Pack 1


Error/Inconvenience/New feature


Couple Editor Toolbar for new Graphical linkage Editing tool was not visible per default
Engine Improved performance of initialisation of MIKE URBAN links with MIKE 21 FM
Engine Improvement of formulation for spill discharge between river and 2D model in low flow situations
Couple Editor Automatic linkage creation (lateral links). Improved solution for location of interpolated sections when real cross sections contain cross section embankment coordinates. Interpolated sections are not placed using interpolation between coordinates in real sections - instead of always being placed according to marker 2 and river thalweg
Couple Editor, MIKE URBAN When loading specific setup from Release 2011 a number of artificial links were wrongly added to list of links.
Couple Editor New switch implemented to allow the user to invert the direction of which interpolated cross sections should be located for branched defined as negative flow direction.

MIKE by DHI - Agern Allé 5 - DK-2970 Hørsholm, Denmark - Tel: +45 4516 9200, Fax: +45 4516 9292 -