Friday, 20 December 2013
MIKE by DHI 2014 is now available for download

We are delighted to inform you that the new MIKE by DHI 2014 software package is available for download.

Release 2014 brings even more speed and flexibility to professional modellers around the world! If you value your time and want to discover how the world’s leading water modelling software can help you to even better productivity, please check it out. Our 30 day trial licences are free of charge!

MIKE by DHI covers the water environments in a highly integrated manner and with more features than ever before. Whether you are working within groundwater, urban water, wastewater, flooding, water resources, rivers, marine, ports or coasts - MIKE by DHI 2014 covers your modelling needs.

About MIKE by DHI 2014


In January 2014, we have scheduled a number of online presentations in which you can learn more about what's new in MIKE by DHI 2014 and get the opportunity to ask questions. All times are in CET.
  • COAST AND SEA: Tuesday 21 January at 9:00 a.m. and 4:00 p.m.
  • FASTER SIMULATIONS with MIKE 21 and MIKE FLOOD - use of GPUs in Release 2014: Wednesday 8 January at 4:00 p.m. and Thursday 9 January at 9:00 p.m. Sign up by sending an email to
  • WATER RESOURCES: Wednesday 8 January at 9:00 a.m. and Thursday 9 January at 4:00 p.m. Sign up by sending an email to
  • CITIES: Tuesday 14 January at 9:00 a.m. and 4:00 p.m. Sign up by sending an email to
  • GROUNDWATER AND POROUS MEDIA (FEFLOW): Wednesday 15 January at 9.00 a.m. and 5:00 p.m. Sign up by sending an email to
Mark your calendar now - and sign up for one or more of the presentations. Please state your name and which presentation you wish to attend in the e-mail.


You can find more information about the new software package here.

You can also check out our new Software Catalogue 2014, which comprises information about new software features, an overview of our product offerings and much more.


By using our software, you get access to a worldwide support system of people that are highly motivated to assist you and help you meet your deadlines. You also get access to THE ACADEMY by DHI, offering a unique selection of competence building and knowledge sharing activities, such as user events and professional training courses, enabling you to become an expert within your field. The online calendar is now updated with many new courses and events scheduled for 2014. Click here to find the next user group meeting or training course near you.


Download MIKE by DHI 2014 from our website at

If you have any questions about the new release, download, licences, or about our software in general, please contact

Stakeholder module to MIKE HYDRO Basin

As an add-on to MIKE HYDRO Basin, it is now possible to create an interactive, web-based water allocation game, which stakeholders can play in order to improve their understanding of the likely consequences of different actions. The game is made realistic by converting the relevant MIKE HYDRO Basin model to the serious game interface developed by DHI.

Please contact us to learn how easy it is to convert your MIKE HYDRO Basin model to an engaging, yet serious game for your stakeholders!

For a demonstration of the power of serious water allocation games, and to play the Danida version, visit

Local Flash Flood warning System

Read more >>>
Our Local Flash Flood Warning System uses a combination of data processing, modelling and communication tools to give you the timely and accurate forecasts required to aid in proper decision making. It considers the catchment area as a whole – including flood plain and tributaries – thereby providing a more integrated, flexible and holistic approach to forecasting flash floods.

Conventional flood warning systems mainly focus on discharge predictions in the main rivers. However, local floods in smaller streams and tributaries (not generally covered by conventional warning systems) may cause a large amount of damage – particularly in urban areas.

Our Local Flash Flood Warning System overcomes this challenge by considering the entire catchment area as a whole. The system is based on existing and newly developed components of our MIKE CUSTOMISED by DHI framework. It effectively utilises a large variety of input data, sophisticated mathematical models, and advanced hydrological analysis processes.

Some of the key benefits of the system: -
  • Ability to effectively forecast local flash floods by covering the entire catchment area
  • Frequent forecast updates appropriate for local dynamic rainfall events and storms
  • Flexibility in terms of connecting to data sources
Predicting long-term shoreline movements

Read more >>>
Detailed sediment transport description from our two-dimensional (2D) coastal model, combined with a shoreline evolution model can help to effectively predict long-term shoreline movements. Our solution can thereby enable long-term forecasts of impacts of coastal structures on coastal processes and thereby help maintain integrity of the coastline.

Valid predictions of long-term shoreline movements are vital to mitigate or prepare for erosion and changes in coastal stability. Our new shoreline model introduces the concept of a 1-line model for shoreline evolution within the MIKE 21 FM framework. The model can be applied to problems over a longer time scale. This is due to the simplifications imposed on the morphologic evolution of the coastal profile, when compared with the existing two-dimensional (2D) morphological model MIKE 21 Coupled FM.

Some of the key benefits of the new shoreline model: -
  • Ability to calculate stable shoreline and shoreline envelopes and compare shoreline movements for different scenarios
  • Inherent inclusion of the effects of coastal structures in the shoreline model
  • Ability to make long-term predictions of coastal structure interactions and their impact on coastal processes
  • Maintenance of coastal profile integrity
Helping you select the best aquaculture sites for optimal production

Read more >>>
At DHI, our advanced modelling techniques and environmental and hydrodynamic expertise can help you identify optimal sites for aquaculture production. Our innovative solution combines our knowledge of chemical and biological conditions with the three-dimensional (3D) hydrodynamic modelling of our MIKE by DHI software.

The selection of suitable sites for marine aquaculture is essential for economically viable production. Different environmental requirements, such as light, nutrients, oxygen and water column stratification, must be taken into account, during such site selections.

With our 3D MIKE model and extensive knowledge, we can help you identify the best areas for optimal aquaculture production throughout the year. We can also calculate and quantify potential disease dispersal, helping you identify more safe places for future aquacultures location. Moreover our site selection tools can aid you in selecting sites with high dilution capacities to ensure that medical products and copper do not exceed the maximum allowable concentration.

Wednesday, 11 December 2013
View the new Software Catalogue 2014
Software Catalogue 2014

Our new Software Catalogue provides an overview of our comprehensive collection of software products for water environments. It includes information about news in MIKE by DHI Release 2014, MIKE CUSTOMISED products as well as worldwide training and knowledge sharing activities by THE ACADEMY by DHI.

Click here to read the new catalogue.

Thursday, 5 December 2013
Marine application

3D model (MIKE 3 FMHD with MIKE 3 FMPT)

Two simultaneous releases both made at 3.0m below the water surface. The square markers are the neutrally buoyant particles (e.g. bacteriological effluent), and these are permanently deposited (i.e. not re-suspended) upon contact with the bed. The triangular markers are negatively buoyant particles that have a positive fall velocity (e.g. sand), these are allowed to re-suspend upon contact with the bed. The reduced flow speeds near the bed (from the 3D model) can be clearly seen by the movement of the sand particles. Marker colour changes to represent the vertical position of the particle.

Riverine application

2D model (MIKE 21 FMHD with MIKE 21 FMPT)

Neutrally buoyant particles released at bed level in a river with a varying flow. The trails show the previous location of the particles (for the last 3 time steps).

MIKE to Google Earth Datum Shift

Google Earth is using the ellipsoid WGS84 to define geo-positions on the earth. If the dfs2 file uses a projection that is based on another ellipsoid the area may not be displayed correctly compared to the satellite images. In this case it may be necessary to apply Datum shift in addition to the automatic coordinate transformation in order for the image to be located correctly.

Here you can specify the parameters needed to transfer the data from the defined map projection into the domain used by Google Earth.

You can read more about Datum Conversion in the Geodesy manual supplied with the installation (MIKE_Zero_Geodesy.pdf).

See also:

For example: -
1195          OSGB_1936_To_WGS_1984_1


Monday, 2 December 2013
Previews of MIKE by DHI Release 2014

Approximately once a year, we release a new version of our MIKE by DHI software - and this year is no exception. We would like to reveal herewith a preview of some of the new and exciting features to be released in December. We hope these new features will improve your experience with our software products, regarding usability, productivity as well as enhanced applications.

New possibilities of including moving objects in your animations

Ever wanted to add moving objects to your animations? This is possible with Release 2014.

Click here to view an example of the
possibilities of this new feature.
In the September issue of this newsletter, we included a preview of new features in MIKE Animator Plus in Release 2014. In this issue, we would like to show you an example of the possibilities of this new development.

With MIKE Animator Plus, you can create visual animations to present you model results – and as something new, you will be able to include visualisation of solids. Through the inclusion of solids, you can improve your animations significantly by enhancing realism and recognition of locations, for example by including fixed elements like buildings and dams or moving elements like ships. Release 2014 will support the placement of solids inside the model domain and allow them to move, which means that a ship can be sailing as part of the animation.

MIKE HYDRO Basin: Global prioritisation of water users

MIKE HYDRO Basin is our new generation of integrated river basin analysis software for water resources planning and management.

MIKE HYDRO Basin was introduced with the current release 2012, containing a large number of features relevant for integrated river basin management applications. Developments continue for MIKE HYDRO Basin and the new release will introduce another very interesting new feature to modellers of river basin water allocation schemes and resources management; Global Prioritisation.

With this new feature, it is now possible to include a user defined prioritisation of water users within the basin model - regardless of their geographical location within the basin. Thus, it highly increases the applicability of MIKE HYDRO Basin for specific types of water resources management applications.

The global prioritisation of water users are defined through ‘Ranking’ number definitions, where water consumers are assigned an individual ranking number. The ranking numbers are used during simulation to prioritise consumers, in case of water shortage, in order to accommodate the water demands for these - taking into account that some users have a higher priority than others.

Mesh Generation: A new tool for creating flexible meshes from dfs2 files and other sources 

The combination of high flexibility of flexible meshes (FM) and impressive performance improvements, introduced in the latest releases of MIKE by DHI, make the use of FM versions of MIKE 21, MIKE 3 and MIKE FLOOD even more attractive. Improvements in recent releases include, amongst others, the introduction of shared memory based parallelisation, porting of simulation engines to LINUX and, in Release 2014, supporting Graphical Processing Units (GPUs) for MIKE 21 HD FM.

In order to assist those, who want to transfer existing models or bathymetries into the FM system, Release 2014 will contain a new tool, aimed to convert bathymetries in other formats into FM format.

The new Mesh Converter is included in the MIKE Zero Toolbox and supports DHI’s own format from the ‘classic’ modelling series, dfs2 as well as some external formats (ADCIRC, SMS, TUFLOW). The process is quick and easy and produces an equal bathymetry in FM format, which can then be modified using all the existing editing facilities of MIKE Zero’s Mesh Generator.

New features in FEFLOW 6.2

FEFLOW 6.2 offers a number of new features to enhance your groundwater modelling work.

Groundwater age calculation in FEFLOW 6.2
Groundwater Age is a new type of problem class, similar to mass or heat transport. With this, many questions can be easily answered, such as:
  • How long is the average underground travel time of water pumped at a well?
  • What‘s the percentage of bank filtration at the supply wells?
  • What‘s the age and remaining travel time of groundwater at a certain location?
New storage capture/release component in FEFLOW 6.2
Storage Capture/Release is a new component in the Rate Budget and Period Budget Panels for flow and transport in FEFLOW 6.2. With this new component, you can clearly separate storage change and solution error in transient models.

Increased performance with new MIKE 1D features in MIKE URBAN

In 2012, we introduced a new generic 1D numerical engine for MIKE by DHI products. With the upcoming release of MIKE URBAN 2014, a number of new features for MIKE 1D will be available such as:
  • coupling to MIKE SHE
  • options for Advection-Dispersion modelling
  • result presentation in MIKE URBAN
  • and many more…
MIKE 1D is parallelised and makes use of multicore PCs, which means that most users will experience higher modelling performance. Now is the time to start using MIKE 1D in your new modelling projects!

Strengthening wastewater modelling projects with new features in WEST 2014

Our WEST software package, for modelling wastewater treatment plants, has quickly established itself as an important product in the MIKE by DHI family with a growing number of users all over the world. Release 2014 includes several important new features, including:
  • New Report Generator, which enables the user to automatically create reports containing graphs and data pertaining to a project in a variety of formats including: project information, plant layout, plots and tables.
  • Integrated urban water system (IUWS) libraries, making WEST a powerful tool for identifying synergies and to globally optimise the wastewater system performance on a catchment scale.
Inclusion of plant wide model (PWM) in the WEST 2014 model library

We are also pleased to inform you that Release 2014 of WEST will include a plant wide model (PWM) for simulating nutrient removal activated sludge systems.

The plant wide model, ‘PWM_SA’, is a three phase model for the simulation of nutrient removal activated sludge systems coupled with the anaerobic (organisms independent of oxygen), aerobic (organisms dependent on oxygen) and anoxic-aerobic digestion of sewage sludge. This includes waste activated sludge produced by biological excess phosphorus removal plants. The model is based on strict material mass balance and is prepared by linking:
  1. a variation of ASM2 for activated sludge nitrogen and phosphorus removal and aerobic or anoxic–aerobic digestion
  2. a variation of the UCT anaerobic digestion model.
The main extensions to the original models are through their integration within a three phase mixed weak acid/base chemical and physical processes models of the inorganic carbon, ammonia, acetate, propionate and phosphate systems.

The plant wide model is developed jointly by our WEST Development Centres, the Universities of Cape Town (UCT) and kwaZulu-Natal in South Africa.

Screencasts FEFLOW Tutorials

FEFLOW Tutorial No. 3 - User Interface

The remaining tutorials can be accessed from our FEFLOW website here, or via our YouTube channel here. The screencasts show a number of workflows in the FEFLOW user interface. The numbers of the videos refer to chapters in the FEFLOW User Manual, where all these tutorials are described in a detailed, step-by-step way.

Screencasts FEFLOW Demonstration Exercise

FEFLOW Demo Exercise No. 1 - Working with maps

The remaining demo exercises can be accessed from our FEFLOW website here, or via our YouTube channel here. These animations refer to the Demonstration Exercise that can be downloaded from manuals page. The exercise can be repeated by using the free demo version of FEFLOW available from download page.

Development of new modelling tools for national marine water planning based on ECO Lab

Our ecological modelling software, ECO Lab, will be used in a new project with the aim to develop an advanced set of dynamic modelling tools, which will be the official tools for marine water planning in Denmark in the coming years.

The project is initiated as a collaboration between DHI and Danish Centre for Environment and Energy (DCE). The project will develop and apply ecosystem models by using our MIKE by DHI software, ECO Lab, and addressing the governing coastal processes and ecosystem services such as sediment processes, sea grass, algal growth and oxygen depletion.

For more information, click here or contact Anders Erichsen, DHI.

You can also read more about ecological modelling by clicking the links below:
Read the full November 2013 Edition of the MIKE by DHI NetWork newsletter here.

Enabling optimised construction of the London Array offshore wind farm

Our real-time system provided accurate forecasts of Metocean conditions on a detailed spatial and temporal scale for the world’s largest wind farm – London Array. This enabled London Array Ltd. – the consortium behind the wind farm – to optimise the construction of the offshore wind farm. The result: minimised delays and ensured safety for those working on the project.

Situated in the outer Thames Estuary, is the world’s largest offshore wind farm: the 1 GW London Array. Weather conditions in this area are often challenging, which made construction and installation of the wind farm difficult. As such, high-quality and reliable Metocean data was vital for the successful planning and installation of London Array’s foundations and turbines.

London Array Ltd. needed to be able to predict available weather windows. We used our 30 years of experience in Metocean forecasting for this purpose. This ensured that the London Array project benefitted from the most up-to-date and advanced technologies, combined with local experience of forecasting techniques and equipment.

By assisting London Array Ltd. with forecasting Metocean conditions, our system helped keep delays to a minimum during the construction phase. In addition, our system also enabled London Array Ltd. to efficiently plan maintenance work during the operations phase.

Read more.

CARM wins Australia’s national Environmental Engineering Excellence Award

On 20 November 2013, the Institution of Engineers Australia awarded the Computer Aided River Management (CARM) project the Environmental Engineering Excellence Award. This prestigious award honours the top achievements in environmental engineering and the sustainable use of natural resources. The award was received by our client State Water Corporation of New South Wales.

Our software is the backbone of CARM – a Decision Support System (DSS) based on MIKE CUSTOMISED by DHI components. CARM gives State Water Corporation an insight into the current and forecasted state of the Murrumbidgee River. It utilises a suite of MIKE by DHI models to reproduce key catchment and river processes for the entire 1,600 km river system, and combines them with real-time measurements. This allows river operators to combine dam releases with natural tributary inflows to deliver the right amount of water when and where it is needed.

For more information on the CARM project, click here

Read the October 2013 Edition of the DHI Group newsletter here.

Thursday, 14 November 2013
Previews of MIKE by DHI Release 2014

Approximately once a year, we release a new version of our MIKE by DHI software - and this year is no exception. We would like to reveal herewith a preview of some of the new and exciting features to be released later this year. We hope these new features will improve your experience with our software products, regarding usability, productivity as well as enhanced applications.

MIKE Zero 2014 – beyond memory limitations
Unleash the full potential of your hardware with MIKE Zero release 2014.

MIKE Zero is the overall graphical user interface (GUI) framework for most of the MIKE by DHI products and the coming release will introduce the entire MIKE Zero framework to our users as a true 64-bit application. This completes the transition process of MIKE Zero based products from 32-bit applications with Windows operating system limitations on memory usage to unlimited and true 64-bit applications.

It includes all MIKE Zero user interface components, toolboxes and utilities as well as our computational engines.

Memory usage is now only limited by your hardware. Common, memory demanding operations such as high resolution mesh generation, results analysis and processing are now possible without any risk of limitations from built-in limitations within your PC’s operating system. Enjoy the unlimited capabilities of MIKE Zero with Release 2014 of MIKE by DHI!

Including overtopping in MIKE 21 and MIKE 3
In the last few years, there has been a growing focus on the phenomenon of overtopping of coastal structures like sea walls and other defence structures. This increased interest is due to more frequent loss of human life and economic losses.

In release 2014 of MIKE 21 HD and MIKE 3 HD (FM versions), we are introducing a new feature that gives you the possibility of including overtopping in your hydrodynamic simulations.

In release 2012, a new dike structure was introduced that made it possible to use this type of structures in a flexible manner. This dike structure has now been enhanced allowing you to choose either to directly specify the overtopping discharge or to have the overtopping discharge calculated by specifying a table that expresses the overflow as a function of the freeboard, wave height and period. The direct specification of overtopping can be constant or varying – both in time and along the dike.

When you choose to have the overtopping calculated, the dynamic variation of the simulation results is taken into account. We expect to introduce more developments of these aspects in upcoming versions.

Restore and recreate views in FEFLOW with the new scene library panel

The new FEFLOW 6.2 will feature a very convenient tool to store different views in your FEFLOW model or results files. Supermesh, slice, 3D and cross-section view settings can be stored in a Scene Library panel, which will allow you to easily restore or recreate views from stored scenes. The library will provide different filters and an option to create folders and lists in order to organise the stored scenes according to your preferences.

As an additional benefit, the provided import and export functionality will facilitate the creation of a large number of identical views in different model scenarios – all with just a few mouse clicks.

With this new feature, view windows no longer need to remain open in order not to lose the chosen view settings but can be stored in the Scene Library. This will require less memory usage and CPU time.

Link to ICFR 2013 Website
International Conference on Flood Resilience:
Experiences in Asia and Europe

5-7 September 2013
Exeter, United Kingdom

A belated thank you to the team at the University of Exeter (David Butler, Albert Chen, Slobodan Djordjević, Michael Hammond, their colleagues and students), and their CORFU partners, for the exceptional ICFR 2013 conference held in September 2013. It was great to see so many fantastic presentations of projects featuring innovative use of MIKE by DHI software (particularly MIKE URBAN and MIKE FLOOD) and new MIKE CUSTOMISED solutions.

DHI's Ole Mark speaks at ICFR 2013
There were many favourite papers over the course of the three day event (featuring, for example, the use of social media for flood calibration and transport of contaminated flood waters) but here are just two that caught our eye: -
Many ICFR authors have agreed to share their presentation and poster files. You may visit the ICFR website and download the files that you are interested in here. The ICFR proceedings book with extended summaries and the CD with full papers are now available from the ICFR website here.

The University of Exeter have also developed a CORFU Flood Damage Assessment Tool (compatible with the Multi-Coloured Manual) for MIKE 21, MIKE FLOOD and MIKE URBAN results files (i.e. dfs2 and dfsu). We hope to have more information on this tool very soon.

Temperature Exchange Using MIKE FLOOD AD Links

The coupling between MIKE 11 and MIKE 21 Flow Model FM has been implemented for temperature, salinity, components in the Transport module (FMAD) and components in the ECOLAB module; so a coupled (MIKE FLOOD) model can allow for the full exchange of salinity, temperature and other tracers: -

Figure: Two FM domains connect by a long culvert (MIKE 11 branch with closed cross sections), inflow far left, 3 heat sources in the upper lagoon.

Monday, 4 November 2013
Previews of MIKE by DHI Release 2014

Approximately once a year, we release a new version of our MIKE by DHI software - and this year is no exception. We would like to reveal herewith a preview of some of the new and exciting features to be released later this year. We hope these new features will improve your experience with our software products, regarding usability, productivity as well as enhanced applications.

Introducing MIKE 21 GPU

If you are using MIKE 21 FM HD or Flexible Mesh solver with MIKE FLOOD, you are getting a pleasant surprise with Release 2014! With the new release, your update package will automatically include a brand new version of the MIKE 21 FM HD module. The new version, MIKE 21 GPU (Graphical Processor Units), is “GPU-card enabled”. This means that it is able to use the graphics card on your PC to speed up simulations significantly.

Speed up you models
Depending on the model setup and the type of GPU, the speed-up can be a factor 100 or more compared to running the same simulation on a single processor CPU.

For some model setups and GPUs, this also means that MIKE 21 FM is now faster than MIKE 21 “Classic” - the single grid version of MIKE 21 HD - when using exactly the same rectangular mesh.

The technology behind MIKE 21 GPU: How does it work?
The computational engine of MIKE 21 FM HD has been reprogrammed to make use of the latest graphical processor units - hardware that is otherwise typically used for speeding up computer games.

How will I get MIKE 21 GPU?
MIKE 21 GPU will become available, at no extra cost, to all owners of corporate licences of MIKE 21 or MIKE FLOOD with valid SMA. This means that there will be no licence fee and no increase in SMA costs. If you do not have a valid SMA or if you own a personal licence, you will be able to purchase it as an upgrade to your existing software.

Where can I read more about MIKE 21 GPU?
We have produced a detailed performance report, including comparisons of the performance of MIKE 21 GPU with the non-GPU enabled MIKE 21 FM HD. Click here to read the report.

For more information about MIKE 21 GPU, check out future issues of this new newsletter or contact our software support team.

Introducing exciting new possibilities in MIKE Animator Plus

Version 2012 of MIKE by DHI included a completely re-engineered version of MIKE Animator, designed to be a very flexible tool for producing high quality video animations of modelling results. The most prominent new features in version 2012 were the support of MIKE 3 files (including the ability to slice and take out transects and iso-surfaces) and also improved picture draping functionality.

We have continued the development of MIKE Animator Plus and version 2014 will contain three new and interesting possibilities:

Visualisation of solids: Enhancing realism and recognition of locations
The inclusion of solids can improve the animations significantly through enhancing realism and recognition of locations, for example by including fixed elements like buildings or dams or moving elements like ships. Version 2014 will support the placement of solids inside the model domain. These elements have to be created in 3DS format and then loaded into MIKE Animator Plus. Moreover, they can move inside the animation, which means that a ship can be sailing as part of the animation.

Visualisation of particles: Enhancing result communication
Output files with particle trajectories from the Particle Tracking (PT) modules (MIKE 21 PT and MIKE 3 PT) and from the Agent Based Modelling (ABM) modules (ABM for MIKE 21 and MIKE 3) will now be supported in MIKE Animator Plus. This will enhance the possibilities for result communication from these modules significantly. Click here to view an example.

Support of MIKE SHE files: High quality animations of MIKE SHE results
Also, output from MIKE SHE will now be supported in MIKE Animator Plus in order to allow for high quality animations of MIKE SHE results. This will include animation of overland flow as well as 3D groundwater flow.

New water quality option in MIKE HYDRO Basin

MIKE HYDRO Basin is our new generation of integrated river basin analysis software for water recourses planning and management.

MIKE HYDRO Basin was initially introduced with the current release 2012 containing a large number of features relevant for integrated river basin management applications. Developments continue for MIKE HYDRO Basin and one of the new exiting features being introduced in release 2014 is the option of applying water quality simulations within your river basin management applications.

Water quality options in the basin management software package have traditionally been limited to a few hard-coded water quality formulations. However, the new release will include a major upgrade in that respect, as water quality modelling in MIKE HYDRO Basin will be using the open and very flexible ECO Lab modelling framework. This will allow you to alter existing water quality templates or create your own model templates from scratch. Therefore, the ECO Lab option will greatly enhance the options for applying tailored water quality modelling for your particular water resources management or planning project.

Thursday, 1 August 2013
MIKE by DHI 2012 Hot Fixes

Just a reminder that, as with Service Packs, Hot Fixes are now available on our external website. We would recommend that you are up to date with the relevant fixes (both service packs and hot fixes), or at least are aware of them.

Hot fixes are generated between service packs and usually fix critical issues that can’t wait for the next service pack or major release.

To visit the Hot Fixes webpage please click below: -

Local Area Weather Radar for Urban Hydrology

Climate change can be expected to affect prevailing patterns of precipitation with extreme rain events becoming more frequent and more intense. This will increase the pressure on water collection systems and wastewater treatment plants. Warning and forecasting systems provide necessary tools for authorities and operators to plan ahead and make the right decisions. Accurate predictions can be made if sufficient data are available. However, the greatest uncertainty when modelling the response of drainage systems to rainfall is the rainfall itself.

The standard approach is to use rainfall measured by one gauge but traditional rain gauges provide data with low temporal and spatial resolution. When using rain gauges, it must be assumed that the rainfall is homogenous over the whole model area, which may be as large as a whole city. For the prediction of potential surface water flooding as a result of extreme rain events, this assumption is not valid.

Weather radars, in contrast to rain gauges, provide high resolution data over a relatively large area, the equivalent of many synthetic rain gauges in one installation. However, dedicated weather radars are expensive. Local Area Weather Radar (LAWR), developed by DHI from modified marine radar and using interpretation algorithms, can provide high resolution rainfall data at a much lower cost. Such systems are already installed in many cities worldwide. They detect the first raindrop falling and track the precipitation as it falls. This provides accurate rainfall data with high spatial resolution, which is suitable for input to flood warning and forecast models.

LAWR Advantages and Integration
  • Distributed rainfall measurements in a spatial resolution ranging from 500x500 m to 100x100 m with a 5 minute or 1 minute time resolution up to 30 km from the radar
  • Online animation of rainfall within the complete LAWR range
  • Up to a few hours' forecast (online) of coming rain events for use in optimisation of sewer and treatment plant capacity
  • Fully integrated with MIKE URBAN (from release 2007) which facilitates the import of LAWR data, visualisation of the event over the model and its catchments and simulation with fully distributed rainfall
  • LAWR data is supported by the full MIKE by DHI software suite

The image above shows a rain event imported into MIKE URBAN. It illustrates a classical problem - only part of the drainage system is receiving rain. If a user wants to analyse such an event based on a single gauge several kilometres away it would yield a very poor result. LAWR data provides the user with a whole range of new opportunities. It is possible to see the event move and evolve over the drainage system, and see which catchments receive the heavy intensities.

Friday, 26 July 2013
Assessing The Impacts Of Rural Land Management Change On Flooding And Flood Risk (The Catchment Approach)

MIKE SHE is a very powerful tool for assessing the effects of natural flood management schemes in the UK. The software has been used extensively for modelling wetland restoration in upland areas in different parts of the world.

The effects of tree planting, water meadows, and other riparian planting can be described by land use changes in the model and the impacts on evapotranspiration, unsaturated flow and surface runoff examined. It is also possible to describe the detention of water in the floodplain (e.g. as a result of tree planting, landscaping, etc).

Photo: iStock © Василий Тороус
The effects of cutting off drains, and altering surface flow routes, can be modelled using the MIKE SHE 2D Overland Flow module. Channel restoration and green bank protection can be handled by coupling to MIKE 11.

Natural flood management has many benefits (habitat creation, nature conservation, diffuse pollution mitigation, etc) and is of particular interest in rural rapid response catchments; where it is not always possible to provide flood defences.

A selection of useful (external) documents, papers and links can be found below: -

UK Hazard Mapping with MIKE FLOOD and ECO Lab: Solving the Debris Factor Problem in 2D Flood Modelling

MIKE by DHI Release 2012 introduced an option for generating Flood Hazard Maps in MIKE 21 / MIKE FLOOD using ECO Lab (without the need for customers to have an ECO Lab module in their licence!).

Depending upon the approach adopted (e.g. the ‘Flood Risks to People’ guidance from Defra / EA) MIKE FLOOD can utilise the flood water depths, velocities, and land use data to seamlessly calculate both the correct debris factor and appropriate flood hazard rating in each grid cell / element and at each time step in a simulation.

For the UK, the templates are based upon the Environment Agency document 'SUPPLEMENTARY NOTE ON FLOOD HAZARD RATINGS AND THRESHOLDS FOR DEVELOPMENT PLANNING AND CONTROL PURPOSE – Clarification of the Table 13.1 of FD2320/TR2 and Figure 3.2 of FD2321/TR1'.

Download the templates and supporting documentation here: -
* The four templates included in the .zip file are all ‘signed’ by DHI such that ECO Lab can be activated in a combined MIKE 21 / MIKE FLOOD + ECO Lab simulation and Hazard Maps are produced as an ‘on-the-fly’ result from the 2D simulation – without the need for the user to have an ECO Lab module in their license. The templates can be used for both MIKE 21 'Classic' and MIKE 21 FM!

The templates are provided ‘As is’ without warranty, so please check the results carefully if you use them.

For more information, and to request changes or updates to the templates, please e-mail

Tuesday, 23 July 2013
Simulation of Coastal Inundation by Waves Using MIKE 21

Inundation by storm surges and tsunamis, as well as smaller storm waves, is a considerable risk faced by coastal communities. Over the past few years, flood events on the eastern coast of the USA, as well as in Japan and the Indian Ocean, for example, have highlighted the need for an understanding of potential impacts. The instructional document here presents a summary of methods (as previously used by DHI) for investigating large wave inundation using MIKE by DHI software: -

This document is for information only and does not constitute consultancy advice (No liability for the consequences of any actions taken on the basis of the advice provided is accepted).

MIKE by DHI 2012 Service Pack 2 is available

Service Pack 2 for release 2012 is now available for download here. Service Pack 2 offers a few new features and a number of important corrections. Please see the updated release notes for information about the corrections and improvements.

If you have questions about MIKE by DHI 2012 or the latest Service Pack, please do not hesitate to contact

To download Release 2012 Service Pack 2 please click below: -

Simulation of extreme water levels around the coast of Australia

MIKE 21 FMHD was used to simulate extreme water levels around the coast of Australia in order to determine exceedence probabilities due to combined tide and tropical storm events. Ivan Haigh of Southampton University and a number of his colleagues working on the project have produced two very interesting papers detailing the model construction, validation and post-processing undertaken to derive the spatially varying data set. Ivan has kindly made the papers available to 2013 User Group Meeting participants: -
Dr Ivan Haigh's personal home page can be found here.

Sediment Modelling to Support the Design of New River Structures Using MIKE 21 FM

The complexities of mesh optimisation and sediment transport in a river are brought together in the presentation of Mark Cramman from MWH. Quadrangular elements have been used to define flow control structures in the complex river flow field and the performance of new structure designs have been assessed by considering the impact on sediment transport processes.

Sharing Experiences of Flood Modelling Using MIKE 21

Although unfortunately unable to attend in person this year, Lei Yang of Arup prepared two case studies of flood modelling using MIKE 21 FMHD detailing the typical issues raised and addressed by Flood Risk Assessments. Case 1 includes comments on the use of a one-dimensional weir structure in a coastal flooding scenario. Case 2 includes the use of buried culverts in an inland site with three brooks and a recorded history of flooding.

Using MIKE FLOOD AD and ECO Lab to model polluted flood waters and riverine water quality

MIKE FLOOD now includes the option for a fully dynamic 1D-2D Advection Dispersion coupling, which increases the range of applications substantially.

The new AD coupling in MIKE FLOOD enables users to simulate new interesting aspects such as: -
  • Floodplain contamination from polluted rivers.
  • Impact assessment on river quality from pollutant sources in flood prone areas during flood events.
  • The impact on concentrations of river pollutant in case of a release from an urban Combined Sewer Overflow.

MIKE FLOOD AD can be further enhanced by ECO Lab for advanced water quality simulations.

ECO Lab is the complete numerical laboratory for water quality and ecological modelling. You can develop exactly the model you need and describe the processes you wish. No ecological problem is too simple or too complicated for ECO Lab:
  • Open Equation solver for coupled ordinary differential equations.
  • Designed for point descriptions of processes of chemistry, ecology, etc.
  • All equations, parameters contained in flexible, portable ECO Lab templates (use DHI supported templates or create your own).
  • Integrated with DHI’s hydrodynamic models: Currently MIKE 11, MIKE 21 (hence MIKE FLOOD), MIKE 3 & MIKE SHE.
Wednesday, 10 July 2013
CIWEM Surface Water Flooding and Management 2013 - Plans, Delivery & Funding
26 June 2013 - London, UK

We would like to thank everyone who stopped by our stand for a talk - we hope you found it useful. Just for fun, here is a short video of the UK team at the event: -

A number of flyers were produced for the event, and can be found below: -

Thank you all once again.

Wednesday, 5 June 2013
SuperGen UKCMER Course on Tidal Energy at Queen’s University Belfast

As part of their involvement in the SuperGen UK Centre for Marine Energy Research (UKCMER), formerly SuperGen Marine (, Queen’s University Belfast held a Doctoral Training Programme course at the Queen’s Marine Laboratory in Portaferry during the week 27th to 31st May 2013. Participants from the various SuperGen partner universities attended the course which covered many aspects of tidal energy production from basic tidal mechanics through measurement of hydrodynamic parameters to performance of tidal energy devices and included a field trip to the SeaGen marine turbine installation in Strangford Narrows.

With support from The Academy by DHI, a full 1-day MIKE by DHI training course was included on 30th May providing instruction in the use of MIKE 21 FMHD to demonstrate the role of modelling in resource assessment and device location studies. This collaborative MIKE by DHI training course was presented by Dr Björn Elsäßer (QUB), with assistance from Steve Flood and Dr Suzie Clarke (DHI-UK).

The Bristol Channel area was used for the MIKE 21 FMHD training course. Participants created their own model mesh and then developed hydrodynamic models into which tidal turbines were added in order to investigate impacts on the overall flow field.

Many thanks to Dr Björn Elsäßer, Queen’s University Belfast, and all the participants.

Thursday, 23 May 2013
ICE Flooding 2013 - Developing Flood Resilient Communities
23 May 2013 - London, UK

We would like to thank everyone who stopped by our stand for a talk - we hope you found it useful. We are also sponsoring the 2013 CIWEM Surface Water Flooding and Management Conference on the 26th June - if you missed the ICE event, this is another opportunity to meet us!

View from the MIKE by DHI stand

Monday, 20 May 2013
CIWEM Surface Water Flooding and Management 2013 - Plans, Delivery & Funding
26 June 2013 - London, UK

DHI is pleased to sponsor the CIWEM Surface Water Flooding and Management Conference 2013. We will be at the event in London on the 26th June 2013 and are very happy to extend an invitation to clients and partners, to discuss the newest developments in the market, and to share visions and ideas on future opportunities.

If you would like to arrange a short, informal meeting in advance, please contact Steve Flood on +44 1752 691723 or e-mail

We look forward to seeing you!

River Almond Valley Water Quality Modelling Strategic Study

Atkins was commissioned to produce a dynamic water quality model of the River Almond using MIKE 11 ECO Lab. Vera Jones presents the project details which considered the impacts of Scottish Water’s local assets and identified strategies for compliance with the Water Framework Directive (WFD) and Urban Wastewater Treatment Directive (UWWTD).

Tuesday, 14 May 2013
ICE Flooding 2013 - Developing Flood Resilient Communities
23 May 2013 - London, UK

DHI will be at the ICE Flooding Conference 2013 in London on the 23rd May 2013 and are very happy to extend an invitation to clients and partners, to discuss the newest developments in the market, and to share visions and ideas on future opportunities.

If you would like to arrange a short, informal meeting in advance, please contact Steve Flood on +44 1752 691723 or e-mail

We look forward to seeing you!

Wednesday, 17 April 2013
Combined Thermal Plumes from Multiple Power Stations in the Arabian Gulf

George Mitchell (TechnoEconomica) and James Tomlinson (Atkins) present a discussion of the impacts of thermal discharges on sensitive flora and fauna in the Arabian Gulf, investigated using MIKE 3 FM, and outline the need for a full understanding of the relevant water column processes contributing to the thermal budget.

Monday, 8 April 2013
Shellfisheries Waters Compliance Assessments at Pegwell Bay, Kent, UK

Improvements to the waste water discharges in and around Pegwell Bay, Kent, were investigated by considering compliance with the Guideline bacteriological standard of the Shellfish Waters Directive. Jonathan Short (URS) presents the challenges and findings of the study which used MIKE by DHI software as the water quality assessment tool.

Thursday, 28 March 2013
MIKE FM Series HPC trial at the University of Southampton

DHI is working with the University of Southampton, with input from ABPmer, on a UK trial of MIKE 21 FM HPC using IRIDIS (the University's 12,000 core HPC cluster). The current results, as presented by Steve Flood (DHI), are impressive.

TeraWatt : A collaborative research project funded under the EPSRC Grand Challenge

A general overview of the TeraWatt project and wider context (MASTS, EcoWatt2050), followed by a description of the model domain, boundary conditions, calibration points, and so on as presented by Arne Vögler (UHI).

Wednesday, 13 March 2013
Draft UGM Agenda

There is just one week left until the UK User Group Meeting on 19th and 20th March at the Lion Quays Waterside Resort. We are pleased to present here a draft agenda for your perusal: -

Online booking is now available via, so don’t miss out, make your booking now!

Participation in the event is free of charge and includes lunch and refreshments on both days. Overnight accommodation is available at the Lion Quays Resort for a special B&B rate of £88.50 per person per night, including breakfast and dinner on Tuesday evening.

If you would like more information about the event, or would like to contribute, please contact: -
We very much hope to see you at what will undoubtedly be a very interesting and informative event.

Thursday, 21 February 2013
An invitation to the 2013 MIKE by DHI UK User Group Meeting

Our Spring 2013 User Group Meeting is fast approaching, and we are looking forward to welcoming you to the event on the 19th of March 2013, and Seminar Day on 20th of March 2013, at the Lion Quays Waterside Resort, Nr. Oswestry, UK.

The event is now in its 15th year, and we are very pleased to announce that the event is once again free of charge to all existing and potential users of MIKE by DHI software, as well as those with a general interest in water modelling, engineering and management.

If you are new to MIKE by DHI software, this annual event attracts participants from across industry and academia. The format of the meeting allows exchange of experiences through user presentations plus formal and informal interaction with both UK and Head Office DHI staff.

On the first day, 19th March 2013, there will be a mixture of presentations of new and forthcoming software features and technologies, as well as practical case studies. The programme is nearly complete, and will feature the following presentations: -
Water Resources (incl. Urban)
  • River Almond WQ Study (Atkins): A dynamic water quality model of the River Almond has been developed using MIKE 11 ECO Lab with an overarching aim of assessing the impact of Scottish Water assets on the water quality of the river. An extensive, recent (2011) water quality data set served as the basis for the model’s development, which also included inputs from sewer network modelling. The model has been used to identify water quality parameters and specific locations of concern in the River Almond system, providing Scottish Water with a detailed assessment of catchment needs. The work will continue with identification of strategic options to meet the requirements of the Water Framework Directive and the Urban Wastewater Treatment Directive.
  • Hydrodynamic and Sediment Transport Modelling of Swindale Intake (MWH): Modification to the existing arrangements at the Swindale intake could negatively impact stilling pond hydrodynamics, which could impact fish passage and gravel management. A 2D hydrodynamic (HD) and sediment transport model (ST) to has been applied to assess the potential impact of the proposed works on sediment dynamics in the upstream channel and floodplain and in the proposed stilling pond.
  • Flood Modelling with MIKE 21 (Arup): A look at two case studies of MIKE 21 flood modelling with some comments on the use of structures.
  • Tidal Energy Resources Assessment for Tamar (Plymouth) Estuary Narrows (Hyder): Two MIKE21 FMHD models covering the English Channel and the Tamar estuary were developed to carry out an assessment of the tidal stream energy output potential. The Tamar model has been calibrated using continuous ADCP measured data at 3 locations. Three areas of high tidal stream power output potential with a mean tidal turbine output power density were identified in the Plymouth Narrows.
  • A Multi-model Approach to Coastal Protection at Clacton (Mott MacDonald): Recent experiences with MIKE 21 FM ST and LITPACK while investigating the Clacton beachfront.
  • Combined Thermal Plume from Multiple Power Stations using MIKE 3 (Atkins & TechnoEconomica): A detailed study of the issues involved in modelling multiple thermal and hypersaline discharges in to a warm environment. Issues of waste water recirculation, surface heat exchange and vertical stratification will be covered. Some suggestions on ways in which this process could be improved in MIKE 3 will be offered. Specifically this will concern ground heat retention and excessive night cooling in shallow waters, and also power station sub-models.
Porous Media (Groundwater)
  • Ground Water Heat Flow (ESI): A presentation of some interesting thoughts and applications of FEFLOW.
On the second day, 20th March 2013, we will host a number of seminar style training and open discussion sessions. These sessions will focus on new and lesser know features of MIKE FLOOD, MIKE 21 and FEFLOW.

This is your User Group Meeting, and there is still a little time for you to influence content!

Online booking is now available via, so don’t miss out, make your booking now!

Participation in the event is free of charge and includes lunch and refreshments on both days. Overnight accommodation is available at the Lion Quays Resort for a special B&B rate of £88.50 per person per night, including breakfast and dinner on Tuesday evening.

If you would like more information about the event, or would like to contribute, please contact: -
We very much hope to see you at what will undoubtedly be a very interesting and informative event.

MIKE by DHI 2012 Service Pack 1 is available

Service Pack 1 for release 2012 is now available for download here. Please see the updated release notes for information about the corrections and improvements in Service Pack 1.

If you have questions about MIKE by DHI 2012 or the latest Service Pack, please do not hesitate to contact

To download Release 2012 Service Pack 1 please click below: -

Improved version of Global Tide Model now available

An improved version of the Global Tide Model for coastal and marine modelling is available in 0.125 degree resolution. The model is updated with additional four years of radar satellite measurement and two additional constituents has been added providing better predictions in shallow water. The updated model includes the following 10 constituents: -

Semidiurnal:M2, S2, K2, N2
Diurnal:S1, K1, O1, P1, Q1
Shallow water:M4

The data can conveniently be copied to the default folder for tidal constituents (e.g. C:\Program Files (x86)\DHI\2012\MIKE Zero\Application Data\Tide Constituents). The Global Tide Model is developed by DTU Space in collaboration with DHI.

Click here to download the model constituents for free.

The use of 3D numerical modelling in groundwater research and water quality risk assessment

Matrix Solutions Inc. in Canada is using MIKE by DHI numerical modelling for ground-breaking research and valuable solutions for their clients. Two recent examples are: -

Feasibility study estimating lithium and potash rich brine deposit reserves
Matrix Solutions developed a 3D numerical modelling tool using among others FEFLOW to represent the complex groundwater flow system and evaluate various wellfield strategies. Using FEFLOW to develop their numerical model, Matrix Solutions was able to significantly reduce simulation time and reach a conclusion supporting a long time and low cost mining operation.

The importance of groundwater–surface water interaction in water resource assessments
In order to better understand and assess the groundwater –surface water interaction, Matrix Solutions applied our integrated modelling software MIKE SHE to two municipal water quality risk assessments in order to evaluate the sustainability of municipal water withdrawals.

Read more in the Matrix Solutions newsletter.

Read the full January 2013 Edition of the MIKE by DHI NetWork newsletter here. Read other recent DHI news stories here.

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Welcome to DHI UK

DHI is an independent, international consulting and research organisation with the global objective of advancing technological development and competence with respect to water, in all of its environments.

Worldwide, we offer a wide range of consulting services and leading edge technologies, software tools, environmental laboratories, and physical model test facilities, as well as field surveys and monitoring programmes. Designated as a not-for-profit organisation, DHI is able to invest a considerable portion of its resources in research and development. Today we co-operate with many Universities, and research organisations, and are recognised globally for our innovation and expertise.

In the UK, DHI offers niche or specialist consultancy services in the water and environment market to government agencies, commercial entities and selected research organisations. We fulfil a research based specialist advisor role; a ‘Consultant to the Consultants’. We also supply and support the renowned MIKE by DHI suite of integrated water modelling tools.

MIKE by DHI software is the result of years of experience and dedicated development and has, in many regions, become the standard modelling tool. It transforms our science into practice and gives you the competitive edge and, through the DHI Academy, you can rest assured that there is a local team of highly skilled experts committed to train and support you every step of the way.

MIKE by DHI truly models the world of water - from mountain streams to the ocean and from drinking water to treatment plant and beyond.

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