Thursday, 20 December 2012
Wishing you all a very happy Christmas and a peaceful New Year

We are looking forward to welcoming you to our Spring 2013 User Group Meeting on the 19th March 2013, and Seminar Day on 20th March 2013, at the Lion Quays Waterside Resort, Oswestry, UK.

The User Group Meeting will include a mixture of presentations of new software features and technologies, as well as practical case studies and papers presented by UK users. Participation in the User Group Meet­ing, and the Training Seminars, is free of charge.

If you would like to present a paper at the User Group Meeting, please contact Simon Matthews on 01694 722795 / or Steve Flood on 01752 691723 / for more information.

For the Seminar Day, we would welcome suggestions for training content. For inspiration please see our latest DHI-UK Training Course Schedule here and the MIKE by DHI Software catalogue here.

Online booking will be available shortly, and you will soon receive an e-mail with the link.

The DHI UK Team

Topography Adjustment Tool for MIKE 21 / MIKE FLOOD (A MIKE by DHI Software Custom User Tool)

The Topography Adjustment Tool is a MIKE by DHI Software Custom User Tool developed for the purpose of automating the process of using polygon shape files to adjust topography values in dfs2 files used in MIKE 21 surface water flow models. The main application of the tool is to use a polygon shape file of buildings to automatically assign land values to the dfs2 grid cells which are intersecting the building polygons. However, the tool has been designed such that it can also be used to ‘burn’ roadways into the dfs2 topography. In fact, although the tool is primarily intended for adjusting topography, it can be used to adjust any .DFS2 file using a polygon shape file to select the grid cells of interest.

NB: The Topography Adjustment Tool is provided ‘as is’ and is not part of the commercially distributed MIKE by DHI software products. As such, it is not a supported software product and technical support is not available. Additionally, the Topography Adjustment Tool was developed to work with the 2012 Release format of .DFS2 files but it is expected it will work with some earlier versions of dfs2 files and will continue to work for future releases as long as major changes are not made to the structure and content of .DFS2 files.

Wednesday, 19 December 2012

We are proud to introduce our new MIKE LICENSING-FLEX ACCESS policy with distinct advantages for present and new users, small businesses as well as large corporations and universities.

As an organisation with many modellers working in teams, perhaps across organisational, regional or even national borders, you will enjoy the complete freedom that comes with our CORPORATE licences – and the attractive prices of additional seats as well as on support.

Larger or smaller organisations working on time limited projects may choose the SUBSCRIPTION licence due to its combination of flexibility and limited investment.

And organisations working on a limited project budget will find that they can get access to the full power of the MIKE software for a single user through the PERSONAL licence.

With our new MIKE LICENSING-FLEX ACCESS policy there is a licence for all possible needs – at the right price.

Check out this web page for more information: -

UK users with current MIKE by DHI licences have received informational letters, and will be contacted by the UK Team soon who will explain the changes to their licences. To find out more in the meantime, please contact Steve Flood on 01752 691723.

Thursday, 29 November 2012
MIKE 21 Quick Start Guide (Flexible Mesh Series)

Over the past few months, we have prepared several short instructional documents in the use of the MIKE Zero Mesh Generator, MIKE 21 FMHD and MIKE 21 SW from a UK perspective. These instructions have been collated into the informal working document 'MIKE 21 Quick Start Guide' below: -

We have been working hard to enhance our User Manuals and Scientific Documentation. For example, the above informal guide can be augmented by our new Mesh Generator Step-by-step Guide (2012): -

How to Create a Directional Wave Spectrum for Input to MIKE 21 SW from Buoy Data

In order to make best use of the new Wave Spectra Converter tool available in Release 2012, some pre-processing of wave buoy data is generally required. In response to a number of recent enquiries, we have prepared the following informal guidance: -

Oil Spill Modelling

It is important to note that the methodologies of the old and new oil spill models in MIKE 21/3 are very different, and a direct comparison is difficult. However, in order to provide some basic guidance, we have developed the following comparison document and associated example models (provided here for information and discussion only): -

Sunday, 25 November 2012
Australian Rainfall and Runoff 2012 (AR&R) Guidelines Launched: Two Dimensional Modelling in Urban and Rural floodplains

Engineers Australia has published new guidelines on Two Dimensional Modelling in Urban and Rural Floodplains. The guidelines have been prepared for the National Committee on Water Engineering as one of the Australian Rainfall and Runoff Revision Projects.

The Guidelines review current practice in 2D modelling, including areas where current practice is not supported by theoretical and empirical research, and provide guidance on appropriate development and usage of 2D hydrodynamic models for floodplain applications.

While tailored to Australian flood risk legislation, UK users of MIKE FLOOD may find the report of interest (particularly, for instance, the sections on building representation and the use of eddy viscosity in 2D inundation models).

The report builds in part upon the research undertaken by Grantley Smith (University of Newcastle, NSW) on 2D Flood Modelling in Urban Areas (specifically in Merewether; a suburb of Newcastle, New South Wales) which he presented at the 2012 UK User Group Meeting.

Monday, 19 November 2012
Top award for Managed Aquifer Recharge (MAR) Scheme using FEFLOW

The Fortescue Metals Group (FMG) recently won top honours at the International Water Association’s prestigious Project Innovation Awards at the World Water Congress in Korea. The prize was awarded for an innovative Managed Aquifer Recharge (MAR) scheme at Fortescue’s Cloudbreak and Christmas Creek iron ore mines in the Pilbara region of Western Australia. DHI provided assistance to FMG in the design and development of high-spatial-resolution groundwater models using FEFLOW for this project.

The MAR scheme mitigates environmental impact of surface discharge and dewatering drawdown and conserves brackish water resources for future mine water supply. The mine operations are bounded on the south by the Fortescue Marsh, an ephemeral wetland of national significance that is underlain by hypersaline groundwater. The project is one of the largest MAR schemes in Australia and is the first of its kind in highly saline groundwater.

Figure: A Simplified Schematic of The Cloudbreak Managed Aquifer Recharge (MAR) scheme

The MAR scheme is part of the mine dewatering operation. The scheme allows FMG to pump almost 75% of the extracted water back into the local groundwater system instead discharging it to streams, where it would be largely lost to evaporation in the arid climate. The current operation has been operating as a sustainable ‘closed’ system with zero surface discharge since September 2009. The FEFLOW models enable FMG to predict the movement of the saline/brackish groundwater interface in response to different operating conditions. The models also help forecast the quantity and salinity of groundwater extracted under different mine plans. The current 40-gigalitre/year operation may grow to over 100 gigalitre/year as the Cloudbreak mine expands and the Christmas Creek mine comes on-line.

The Fortescue project showcases how Managed Aquifer Recharge, together with FEFLOW, can be used to meet a range of objectives in a complex environment, including coast aquifers. MAR is relevant in many environments, and is likely to be increasingly used at mine sites around the world facing varied and difficult water management challenges.

For more information please contact Stefan Paul Szylkarski at

Sunday, 18 November 2012
Transforming abandoned mining pits into new lake districts

The mining industry can have severe consequences for regions and the surrounding landscape, impacting vegetation and wildlife negatively when mining production is abandoned. Rehabilitating old mining areas can be a highly difficult challenge and few succeed.

However, with the right strategies and tools available, abandoned mining pits can be turned from lifeless landscapes into prosperous manmade lake districts. This is what has been done in Eastern Germany, where DHI-WASY was able to provide accurate analysis and the right strategies for creating a new lake. For this purpose, integrated groundwater modelling was essential using among other products FEFLOW 6.1 and MIKE 11.

Click here to read more.

Read the full November 2012 Edition of the MIKE by DHI NetWork newsletter here.

Dynamic response of floating offshore wind turbines

As a member of the HYDRALAB-IV consortium, we offer access to research groups to conduct experimental studies in our wave basins. One of the projects selected by HYDRALAB's user selection panel for Transnational Access to our facilities concerns 'Dynamic Response of Floating offshore Structures under Random Waves and Wind Action'.

Other recent DHI news stories

Wednesday, 14 November 2012
MIKE by DHI 2012 – software for WATER ENVIRONMENTS

We are pleased to announce that the MIKE by DHI 2012 software package is officially released!

The 2012 version offers new important features and significant performance improvements, which increase speed and productivity significantly and allow you to handle much larger amounts of data in an efficient manner. This provides many new possibilities and facilitates the work of practitioners and decision makers around the world even further.

MIKE by DHI covers the entire water environments cycle in a highly integrated manner and with more features than ever before. Whether you are working within marine, ports and coasts, water resource management, rivers, flooding, urban, groundwater, wastewater or integrated modelling, MIKE by DHI 2012 is tailored for your modelling needs.

Now, with release 2012, running models and simulations with MIKE by DHI software has become even more efficient allowing you to work faster and with much more comprehensive and complex models than ever before. To mention a few highlights of the many improvements, we are proud to introduce high performance computing (HPC), where you can get access to high performance versions of the FM series as well as remote execution in order to avoid large models monopolising your local PC. Getting access to MIKE software has never been easier, and with MIKE by DHI in the cloud and high performance computing versions available, large and complex simulations will never again be an obstacle to reach the best possible results.

Furthermore, when dealing with climate change adaptation, two important improvements have been made, which are the inclusion of Sea Level Changes and the support of 2D data files in the Climate Change tool. Climate change adaption continues to play a major role and will impact us through water first, and with these new features it is even easier to be prepared.

For more information about the many new features of this release, read more here or check out our new online catalogue here.

Check out the new release here and discover what MIKE by DHI 2012 can do for you.

MIKE by DHI Frequently Asked Questions

Our online Frequently Asked Questions (FAQ) page has now been updated with information relevant to Release 2012. The FAQ page can be accessed at, and links to the most recent posts are presented below: -

Congratulations to Plymouth University on the official opening of its new Marine Building

Plymouth University's new £19 million state-of-the-art Marine Building was officially opened by HRH Prince Philip The Duke of Edinburgh on 30 October 2012. The facility is currently thought to house the UK's most sophisticated wave energy testing tank which will enable developers to test wave energy devices (using waves, currents and wind) prior to linking up to the Wave Hub – a grid-connected test site about 10 miles off the coast at Hayle in Cornwall.

More details can be found via the links below: -

To celebrate the opening of its new Marine Building the University commissioned Alexis Kirke and Sam Freeman to create and perform a unique musical composition for large-scale wave tank, water drummers and electronics. The piece, Sound-Wave, is thought to be the first time a wave tank has been turned into a musical instrument.

Alexis Kirke, with sensors strapped to his body, conducted the 12-minute symphony of waves and music from a position above the main tank. Water drummers (Josie Boucharde, Philip J. Kendall, Magdalena Walker and Jennie Pinhey) provided percussion in the nearby coastal tank. Visit Alexis Kirke's web page to see how it was done.

Friday, 26 October 2012
New Online Software Catalogue 2012-13

Our online software catalogue provides an overview of the wide variety of software products, application areas, engines, modules and benefits. The catalogue contains information about MIKE by DHI products including news in release 2012, MIKE Customised products as well as training activities and events by The Academy. The catalogue is available for download now!

Check out the new catalogue here.

MIKE by DHI User Forum

We are happy to introduce our new user forum. The new MIKE by DHI user forum provides the opportunity for all kinds of discussions related to MIKE by DHI software. Building on the preexisting FEFLOW Forum, which was limited to groundwater related content, the new forum covers all our software products. Don't miss out on this unique opportunity to add an additional level of user-to-user interaction to your software experience.

Visit this new user forum here or find the link under Support in the top menu of our website here.

Monday, 15 October 2012
UK Water Projects 2012

We are pleased to advise that two of our users have case stories (featuring MIKE 21 and MIKE FLOOD respectively) published in the new UK Water Projects 2012 publication: -

Baystone Bank Impounding Reservoir Safety
The restoration of Whicham Beck provides ecological benefits, risk reduction and reduced OPEX costs
by Carl Sanders (United Utilities)

Protecting and enhancing natural resources such as rivers, lakes and some of the most beautiful countryside in the country is all part of United Utilities normal business. Baystone Bank, which was constructed over 135 years ago, is north of the village of Millom within the Lake District National Park. The reservoir was taken out of supply over 10 years ago. This article examines the discontinuance of the Baystone Bank dam, which will result in flows returning to Whicham Beck for the first time in over a century. Read more >

Flood Consequence Assessments of Critical Assets
Dŵr Cymru Welsh Water’s assessments of eight infrastructure assets in Wales
by Chris Lewis, Peter Jones and Laura Howe (Waterco Ltd)

The Welsh Government’s Technical Advice Note 15: Development and Flood Risk (TAN15) gives indicative guidance that the annual probability of flooding of general infrastructure from fluvial events should be no greater than 1% AEP (annual exceedance probability) and no greater than 0.5% AEP from tidal events. This paper presents the reasons for the detailed flood risk assessment of eight water assets in Wales in 2011 and also includes the approach, methodology and findings of the hydraulic modelling which formed a key part of the assessments. Brief details are presented of two of the hydraulic models. Read more >

Visit UK Water Projects Online - the website that accompanies the UK Water Projects publication.

Dear clients and partners,

I am delighted to share with you the results of the rebranding process we have just gone through.

After a decade of strong international growth, we felt the need to reflect on our journey and to agree on the foundation of DHI's future success. We've sought inspiration from our clients, our board members and our own people. I would like to thank all the contributors for their invaluable inputs. It is truly inspiring, when you're inside an organisation, to get a glimpse of the outside-in perspective and to see the realm of opportunities.

We've listened carefully, thought hard and discussed candidly. The result is hopefully an even better DHI - better for you, better for water environments and better for us.

In this special issue of our newsletter, you will discover our new visual identity, our new tagline and two new brands we're introducing to improve accessibility to our knowledge and our technology.


Asger Kej
Sunday, 14 October 2012
Previews of MIKE by DHI Release 2012

The MIKE by DHI Release 2012 is just around the corner. As in previous issues of our newsletter, we would like to disclose a preview of the many new and exciting features, which we hope will improve your experience with the software products, regarding usability, productivity as well as enhanced applications.

Introducing ABM Lab

In version 2012 of MIKE by DHI we proudly present a world premiere: Agent based modelling integrated with our hydrodynamic models in two and three dimensions (MIKE 21 and MIKE 3). Agent based modelling (also called individual based modelling) describes the autonomic behaviour and states of agents, objects or individuals. ABM Lab makes it possible to address questions that are beyond the scope of more traditional water quality models. ABM Lab is a flexible numerical laboratory where the user can define agents, their behaviour and states. The Langragian ABM Lab can work with the hydrodynamics alone or it can be combined with the Eulerian ECO Lab, in order to make the agents react to water quality parameters.

Examples of applications are: -
  • Coral spawn modelling. Numerical modelling of the impacts of dredging plumes on coral spawning and recruitment
  • Modelling eelgrass succession patterns, determining the recolonisation of eelgrass
  • The houting project: modelling the migration of salmonide fish larvae through different wetland construction designs
  • Modelling of Bull Shark migration patterns in a semi-enclosed eco-system

An example of a river basin
management model – overview
As a part of Release 2012, we are also happy to announce the first release of MIKE HYDRO.

MIKE HYDRO is our new, common Graphical User Interface framework, which offers the latest generation of a map-based, easy to use and work-flow oriented user interface. The user interface has the Graphical View as a central component for definition and editing of model features, a Tree-view for easy navigation through model elements and tabular property views for efficient, bulk-editing of model parameters.

An example of a river basin
management model – excerpt with
more details including reservoirs
and different types of water users.
Click on the illustrations to enlarge.
Through a staged implementation, MIKE HYDRO will become the common Graphical User Interface for most of DHI's Water Resources products and new features and products are added in coming major releases.

The first MIKE HYDRO release includes our Basin module, which is a multipurpose, map-based decision support tool for integrated river basin analysis, planning and management. MIKE HYDRO Basin is designed for analysing water sharing issues at international and national or local river basin level.

Typical applications of MIKE HYDRO Basin include: -
  • Integrated Water Resources Management (IWRM) studies
  • Provision of multi-sector solution alternatives to water allocation and water shortage problems
  • Improvements and/or optimisation of reservoir and hydropower operations
  • Exploring of conjunctive use of groundwater and surface water
  • Evaluation and improvement of irrigation scheme performance
The Basin module of MIKE HYDRO includes tools and procedures for: -
  • Numerous water allocation and sharing algorithms
  • Advanced reservoir operation options
  • Detailed hydropower simulation
  • Irrigation water demand and crop yield estimation
  • Hydrological modelling
  • Catchment and river delineation tool
  • Reservoir sedimentation from sediment loads
  • Scripting options for tailored optimisation and scenario simulations
Wednesday, 10 October 2012
Marine Renewable Energy - Meeting the Need
University of Plymouth
Monday 01 October 2012

The delegate pack for the above event - including the special Conference Newsletter - can be viewed below (click 'slideshare' to enlarge): -

A copy of the Conference Newsletter will be made available for download soon.

Monday, 10 September 2012
Marine Renewable Energy - Meeting the Need
University of Plymouth
Monday 01 October 2012

DHI Water Environments (UK) Ltd is sponsoring the above conference / seminar day. This event brings together experts from the public and private sector to discuss the developments and opportunities for meeting the engineering challenges of delivering marine renewable energy in the South West of England.

The UK Government Coalition is committed to meeting 15% of our projected energy demand from renewable sources by 2020 in the most cost effective way, and to increase this percentage into the future. The South West Marine Energy Park (MEP) provides a focus for the development of marine renewable energy which will form part of the range of technologies needed to achieve this commitment. Read more.

DHI Group Newsletter - August 2012

Renewable energy forms the subject of the leading article in the latest DHI Group newsletter: -

We are currently witnessing a major transition – the leap from fossil fuels to renewable energy. The better part of renewable energy production is related to water and water environments. At the same time, offshore wind energy is increasingly gaining ground. Tidal and wave power production are still in their nascent days, but they are fast on the road to maturity. As such, the potential in renewable energy generation is immense and grows further as we speak. Read the full article.

Sunday, 9 September 2012
Large scale Interactive coupled 3D modelling for wave and tidal energy resource and environmental impact using MIKE Software

Scotland has substantial wave and tidal energy resources and is at the forefront of the development of marine renewable technologies and ocean energy exploitation. Wave and tidal energy devices will soon be deployed in arrays, with many sites being developed. It is therefore essential to understand how a number of multi-site developments collectively impact on the physical and biological processes over a wider region. Careful selection of array sites may enable the optimum exploitation of the resource while minimising any environmental impacts to an acceptable level.

The TeraWatt project is a £1m project funded by the Engineering and Physical Sciences Research Council through its Marine Challenge Fund. The project consortium has been established under the auspices of the Marine Alliance for Science and Technology for Scotland (MASTS) with scientists from the Universities of Heriot-Watt, Edinburgh, Highlands and Islands, Strathclyde, Swansea and Aberdeen, and Marine Scotland Science (MSS). The overarching objective of the research is to generate a suite of methodologies that can provide a better understanding of the impact of energy extraction on the resource. Approaches will also be developed that can be employed to assess the physical and ecological consequences of changes to the resource. The project objective will be met by investigating spatial changes in wave climate, physical processes affecting sediments, the shoreline & seabed, and the impacts on organisms living in the seabed, their distribution and the significance of these for other ecological processes.

MIKE by DHI software has been chosen by the TeraWatt Consortium to support their research. Coupled MIKE 3 FMHD and MIKE 21 SW models form the foundations of the adopted MIKE software platform. These core models will be augmented by MIKE 21 BW, MIKE 3 FMMT, MIKE 3 FMST, LITPACK, MIKE 3 FM ECO Lab & ABM Lab, EVA and MIKE Animator in order to consider the specific responsibilities of each partner university.

For more information about the above MIKE by DHI software, please contact Steve Flood on
FEFLOW 6.1 is here!

We are proud to announce that FEFLOW 6.1 is now available with all new features and numerous improvements that enhance performance and usability.

The release of FEFLOW 6.1 marks a significant milestone, making FEFLOW even more productive and intuitive. With the previous FEFLOW 6.0, a new standard user interface was introduced phasing out the classic user interface that has been used for more than 20 years. Now with FEFLOW 6.1, the migration is complete making the entire functionality from mesh generation via simulation to postprocessing available in the redesigned, modern user interface. In addition, a wide range of new functionalities are available. Click here to view highlights of the most important new features and improvements.

FEFLOW users with a valid service and maintenance agreement (SMA) will automatically receive the new version as well as new key codes. If your SMA has expired, please contact the FEFLOW sales team and they will be happy to assist you with renewing it applying special release conditions.

FEFLOW 6.1 is available for public download here.

Experience the complete toolset for hydrogeological modelling!

Joining the powers of the best-in-class geologic and groundwater modelling tools: Easily build detailed geologic models in Leapfrog Hydro and seamlessly transfer them to FEFLOW which can handle your most demanding groundwater simulation tasks.

For more information about Leapfrog Hydro and FEFLOW, please click here.

For more information about FEFLOW 6.1 or to purchase the new version, please contact the FEFLOW sales team.
Previews of MIKE by DHI Release 2012

We are gradually approaching the release of the MIKE by DHI software package 2012, which is scheduled for this October. As in previous issues of our newsletter, we would like to disclose a preview of the many new and exciting features, which we hope will improve your experience when using the software products, both with regard to usability, productivity, and enhanced applications.

MIKE FLOOD AD: fully dynamic AD-coupling

Release 2012 introduces a fully dynamic AD-coupling in MIKE FLOOD, which increases the range of applications substantially.

For more than a decade, MIKE FLOOD has offered complex and flexible features for coupling 1D and 2D hydrodynamic models. Flood extents and flood hazards have been some of the key issues for flood modelling. These issues will continue to be of great importance and still be focus points for many modelling applications in the future, but in addition to this, the new release of MIKE FLOOD now offers the option to simulate the transport and spreading of pollutants during a flood event through a fully dynamic coupling of the Advection Dispersion modules of MIKE 11, MIKE 21, and MIKE URBAN.

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 21 FM: New dike structure option

A new dike structure option has been implemented in the Flexible Mesh series of MIKE 21 and MIKE 3. Dike structures are defined by structure specific data parameters as well as location and geometry. The location in the horizontal domain is given by two or more geo-reference points (a polyline), which defines the width of the structure perpendicular to the flow direction. Each point in the polyline should be given a crest level, and it is therefore possible to obtain a spatial variation of crest elevations along a dike structure within the model domain.

Dike structures are generally used to describe local flow obstructions or other special topographical features, which are not included in the model bathymetry, and as such a highly useful feature for both coastal and inland applications. The discharge over a section covered by the dike is calculated using a standard weir expression.

MIKE SHE: Frozen soil

The 2012 release of MIKE SHE will contain a range of new improvements. Among these are the improvements in simulation of the annual variation of soil infiltration capacity due to freezing and thawing dynamics.

A simplified approach has been implemented, which allows the user to define a time-varying OL-UZ (Overland to Unsaturated Zone) leakage coefficient, and thereby enables the user to control the balance between infiltration and direct runoff from precipitation during all seasons of the year.
Previews of MIKE by DHI Release 2012

We are gradually approaching the release of the MIKE by DHI software package 2012, which is scheduled for this October. As in previous issues of our newsletter, we would like to disclose a preview of the many new and exciting features, which we hope will improve your experience when using the software products, both with regard to usability, productivity, and enhanced applications.

MIKE 21: Earthquake bathymetry adjustment tool

In version 2012, a new tool that can assist undertaking of Tsunami-simulations is introduced: earthquake bathymetry adjustment tool. For several years, it has been possible to work with time varying bathymetries (using the landslide option) in MIKE 21 Classic. The usability of this feature is now enhanced, as it will be easier to simulate tsunamis using the new tool. The earthquake bathymetry adjustment tool calculates sea bottom displacements that occur during an earthquake. The output is a time-varying bathymetry file, which can be used in MIKE 21 HD (classic) with the landslide option to generate wave propagation.

The method for calculation of the sea bottom displacements is an amplified version of the double-couple method developed by Okada (1985). The necessary input data for earthquakes can be retrieved from public databases. The tool is available in the MIKE 21 Toolbox in a new group called Seismology.

MIKE MARINE GIS will be discontinued

MIKE MARINE GIS will be discontinued and will not be available on the MIKE by DHI 2012 DVD. It has been evaluated that the user base for MIKE MARINE GIS was not sufficient to maintain the programme on the Esri platform. However, in version 2012, many of the tools that were previously available through MIKE MARINE GIS, have been transferred into MIKE Zero. Thus, we are enhancing the functionalities available for most users: -
  • Tools for creation of transects, profiles, baselines, and coastlines are included in the bathymetry editor
  • The MIKE Zero tool “Geo Referencing Image File” has been extended to read and convert Esri world format files to DHI world file format
  • The MIKE2SHP tool is extended to support mesh and dfsu files
MIKE URBAN: Advisor Tools for modelling water distribution networks

The costs of pipe failures in water distribution networks are increasing and are forcing operators and utility managers to develop strategies and solutions to identify and replace critical pipes. With the upcoming release of MIKE URBAN, a new set of advisor tools will be available to support these processes.

Pipe criticality modelling will predict how the water distribution system responds to: -
  • Pipe break situations
  • Planned reconstructions
  • Limited water supply
Sustainability analyses will help to understand simulation results and detect possible problems, anomalies, and critical areas in the network. In addition to the map layers, a detailed html report will be provided for the entire network as well as for particular zones: -
  • Storage tanks: reports tanks that are either drained or overflows during the simulation, reports if the tanks are balanced within the simulation
  • Pumps: reports pumps that are operated close to their maximum capacity
  • Unit head loss: reports pipes with too high unit head loss
  • Service pressure: reports excessive pressure that exceed the service criteria
  • Pipe flow: reports reverse flow in pipes
  • Flow velocity: reports excessive flow velocity
Furthermore, cost analyses allow for reviewing the energy consumption results in more details, creating tabular outputs and graphs of pump utilisation, average power consumption, and costs.
Tuesday, 7 August 2012
Numerical modelling of moored vessel motion

DHI has developed the moored vessel response model WAMSIM. The WAMSIM model is an advanced numerical modelling software package designed to support decision makers with fast, accurate and cost effective predictions of motions and mooring forces affecting floating structures. The forcing comes from combined wind, current and wave action. The influence of breakwater and quay structures on the waves is included in the forcing via the hydrodynamics model. Using this tool enables operators to adopt effective mitigation measures early in the feasibility and design processes.

WAMSIM utilises the combined strength of MIKE by DHI’s wave and hydrodynamic models and the industry standard vessel response model WAMIT® by WAMIT Inc. WAMSIM provides time domain predictions of all motions and mooring forces, and can be used to produce informative 3D visualizations, for easy visualisation and result interpretation. The accuracy of WAMSIM has been thoroughly validated against field and laboratory measurements, and have been successfully utilized on projects at a across the globe.
Numerical Modelling of Moored Vessel Motion-DHI Solution

Predicting scour in offshore wind farms

Our research into long-term scour predictions has borne fruit in the form of a specialty tool - WiTuS. With WiTuS, it is now possible to model long-term predictions on scouring around monopile type foundations – structures which form the bases of majority of the current and planned offshore wind farms.

Offshore wind farm establishment is an expensive affair. To add to it, there has been no system in place to predict scouring effects on monopiles over long time spans. Lack of predictability has been forcing investors to spend more on hefty protection measures, to shield monopiles against scouring. This significantly adds on to already heavy investment costs. Read more.

Learn more about WiTus in our new case story.

Oil Spill Modelling

Oil spills pose a serious threat to the marine environment and can have dramatic impacts. With our state-of-the-art knowledge and modelling tools we can assist you in predicting these impacts and help you prepare the proper response at the right time.

Check out our new solution flyer to learn more.
Many more documents are available on the DHI Scribd channel

Click here
Follow us on the new and continually updated DHI Scribd channel, to easily access and share our latest publications.

Scribd, the world's largest social reading and publishing site, ensures widespread access to our documents and offers easy sharing functionalities.
Integrated Surface and Groundwater Model Review and Technical Guide

The Ontario Ministry of Natural Resources has published a guideline report evaluating the applicability of integrated surface and groundwater hydrologic models including MIKE SHE, GSFLOW, and HYDROGEOSPHERE. While tailored to Ontario watersheds, UK users of MIKE SHE may find the report of interest.

"While integrated models are able to provide a more complete representation of hydrologic processes, they have not yet seen widespread application within Ontario. To address this knowledge gap, the Ontario Ministry of Natural Resources initiated a study to determine the applicability of integrated hydrologic models to Ontario watersheds. The report includes: a qualitative comparison of several integrated model codes; the application of multiple integrated model codes to two case-study watersheds; and guidance to water resource practitioners on how to develop and calibrate an integrated model." from (2011)

Friday, 27 July 2012
Environment Agency to launch new Central Modelling Platform with huge MIKE by DHI software installation

The Environment Agency has developed a Central Modelling Platform (CMP) based upon a Virtual Desktop Infrastructure solution to support their regional and national modelling efforts. Once fully implemented the CMP will service up to 500 concurrent users nationwide and will host a range of modelling software applications including MIKE by DHI. The MIKE by DHI software installation on the CMP initially includes MIKE 11, MIKE FLOOD, MIKE 21, MIKE 3, MIKE SHE, ECO Lab, MIKE 21C, LITPACK and MIKE Animator, covering a wide range of the water modelling needs of the Environment Agency.

For more information on MIKE by DHI software please contact Steve Flood on +44 (0)118 9000 745 or
Wednesday, 25 July 2012
Met-Ocean Design Conditions in the Pentland Firth

The Pentland Firth in the north of Scotland is one of the most energetic marine sites in Europe, with tidal currents reaching velocities of up to 12 knots (more than 22 km/h). That makes it highly attractive for tidal energy projects. However, the site is also exposed to severe wave conditions, making it a very challenging environment for such activities. Detailed knowledge of the local Met-Ocean conditions is required to ensure the reliability of any planned tidal devices.

The MeyGen tidal stream project plans to build a 398MW tidal turbine array - generating the equivalent electricity to power 400,000 homes - in the Inner Sound of the Pentland Firth. In order to ensure that the foundations and turbine superstructure are not over- or under-designed, MeyGen Ltd. commissioned DHI to provide design criteria, fatigue and operational Met-Ocean data for four locations at the project site.

The study observed severe wave-current interaction occurring in the area. This occurs when tidal currents are sufficiently strong enough to alter the characteristics of the wave climate. In conditions where tidal currents oppose the waves, extremely steep waves are produced. DHI were able to simulate this process and capture waves of similar steepness to the field measurements.

DHI’s results will be used by MeyGen Ltd to further optimise their turbine design and make sure their structures are able to withstand the harshest conditions expected in their design lives. Moreover, turbine installation can be planned to maximise safety and minimise cost and downtime. Deployment of the first units is planned to commence in 2014.

For more information please contact Oliver Jones on or visit
Thursday, 19 July 2012

The 15th MIKE by DHI UK User Group Meeting is scheduled for 19th March 2013. Once again it will be held at the popular Lion Quays Waterside Resort, Oswestry, UK.

The User Group Meeting will include a mixture of presentations of new software features and technologies, as well as practical case studies and papers presented by UK users.

On the following day, 20th March 2013, training sessions and specialised seminars will be held at the same venue.

Participation in the User Group Meeting is free of charge. The Training Sessions are also free of charge to UGM participants and will include hand-outs, lunch and coffee.

If you would like to present a paper at this event please let us know.

For more information please contact: -
For details of previous meetings, please click on the links below: -

Queen’s University Belfast: Extensive use of MIKE by DHI for teaching and research.

During the last years several MIKE products, in particular MIKE 21 and MIKE 3, are being used extensively for teaching and research at the School of Planning, Architecture and Civil Engineering at Queen’s University Belfast, Northern Ireland, UK.


MIKE 21 is used on various levels of teaching in coastal engineering, both in the class-room and for projects and exercises. Some of the main themes are the estimation of design wave conditions for breakwaters and the influence of dredging on flow conditions in an estuary.


MIKE software has proved to be valuable tools in various research projects, of which can be mentioned (Similarly to other universities much of the research at QUB is made or initiated in connection with thesis studies): -
  • Assessment of the effects of Climate Change on wave climate
  • Assessment of the environmental impacts of farms of marine energy converters
  • Modeling of wave generation over sudden changes in topography
  • Saline intrusion and sluice operation in an estuary
  • Fate of mussel larvae and spat
  • Correlation of benthic habitat composition and hydrodynamic environment
As a part of all these activities, the Queen’s University Belfast has also tested the beta-version of the latest MIKE by DHI release (version 2011).

Dr. Bjöern Elsäßer, Senior Lecturer at the University, states: “No matter what type of research is carried out, the access to state-of-the-art modelling technology is of prime importance. The favourable conditions on which MIKE by DHI software can be made accessible to our Masters and PhD students is certainly a catalyst to our research. For a limited fee the student gets a personal software licence and our university licences can be used for other research and educational purposes. As consultant I’ve been using MIKE by DHI software for many years and have experienced the user-friendly tools and their continuous development as well as the unique support provided by the DHI experts. Based on this experience I felt very confident in introducing the MIKE by DHI modelling technology to QUB and to my students. The user-friendly GUI, the large number of tools within one shell, and the simplicity of getting from a setup to a running model is fantastic. This permits the research part of the thesis work to come into focus instead of only concentrating on setting-up and running a model. Furthermore, it is a pleasure to be able to follow the student’s development and observe how the skills enhance their employability in particular in the competitive working environment.

For further information please visit
WFD Modelling with MIKE FLOOD AD (Coming soon...)

Breach Modelling Tools Available within MIKE 11, MIKE 21 and MIKE FLOOD

Saturday, 14 July 2012

3rd International FEFLOW® User Conference
3rd - 7th September 2012
Berlin, Germany

Building on the success of the previous FEFLOW user conferences, FEFLOW 2012 will feature numerous opportunities for exchanging ideas and improving modelling skills. Highlights include keynote presentations, user presentations, product updates, opportunities to meet with DHI-WASY partners and FEFLOW users worldwide, software demonstrations, training courses, and workshops.

For further information and registration, please go to the Conference website here.
Previews of MIKE by DHI Release 2012

As in previous issues of our newsletter, we would like to disclose a preview of the upcoming MIKE by DHI software package 2012, which is scheduled to be released this September. The release will contain various new and exciting features, which we hope will improve your experience when using the software products, both with regard to usability, productivity, and enhanced applications.

FEFLOW 6.1: Finding the ideal discretisation near wells and point sources

The discretisation of point sources (like well boundary conditions) in discretised numerical model is a critical requirement if an accurate drawdown needs to be calculated. At point-type boundary conditions (such as wells or solitary fixed potentials), the element size has a direct influence on the computed drawdown or flux. If being disregarded, the result might vary by up to orders of magnitude.

As FEFLOW uses a flexible meshing technology, the user is able to adapt the element size near wells and other point sources to the necessary discretisation. This ideal node distance depends on the radius of the well in reality and the number of neighbour nodes. To facilitate the calculation and implementation of this distance, multilayer wells and borehole heat exchangers have been equipped with special viewing styles that guide the user on how to adapt the mesh to its ideal shape.

The figures illustrate the easiness of the workflow. First, a mesh is created (e.g. using the triangle method) with an approximated node distance (6 x well radius). Afterwards, a multilayer well is created. The viewing style “ideal element size” displays a circle indicating the ideal distance of the neighbouring nodes. After manually placing the nodes on this circle, the area indicated by the “geometry“-style (well radius in reality) will be matched by the “virtual well radius” (equivalent well radius in the discretised model).

These and many new features are already available in the FEFLOW 6.1 public beta.

The latest MIKE by DHI NetWork newsletter (July 2012) has now been published. Selected highlights from this, and other recent, newsletters are presented below: -

Application Examples from Around the World
  • MIKE 3 used for innovative project at the Maspalomas desalination plant in Spain: A new and innovative project in the Canary Islands in Spain has resulted in the successful development of an effective method for reducing the environmental impact of brine discharges on marine ecosystems. In order to mitigate the impact of large spreading brine discharges from desalination plants, which affect the benthic communities at the sea bottom, a study was made at the Maspalomas desalination plant in Gran Canaria. The feasibility study focused on applying Venturi effect ejectors in brine discharges versus conventional diffusers as a mechanism to improve the dilution processes at acceptable costs for new and existing plants. DHI contributed by developing and applying numerical models for the study of the brine dispersion, including a MIKE 3 model to simulate the brine plume far field, which was calibrated using measurements from several monitoring surveys. Read more here.
  • Oil dispersion in Guanabara Bay in Rio de Janeiro, Brazil: DHI Brazil was recently requested to perform an oil dispersion modelling to support the development of an emergency plan for a port terminal in Guanabara Bay in Rio de Janeiro. As part of the emergency plan, an analysis of the effects of oil pollution incidents on the safety of life and the environment was performed, taking into account the sensitivity of the areas likely to be affected and the possibility of occurrence. The determination of these exposed areas was conducted through mathematical modelling. Thus, the hydrodynamic and oil dispersion modules of the modelling system MIKE by DHI were used to simulate different scenarios of accidental oil spills within the bay. Read more here.
  • Protection of cruise terminal in Jamaica with MIKE 21: The Falmouth Terminal on the north shore of Jamaica is used by thousands of cruise line passengers each year, but the extreme hurricane events that occur in the region each year pose a flood risk of the terminal buildings. DHI performed comprehensive research and modelling to evaluate the best way to protect the cruise terminal buildings, even during extreme hurricane events in a highly complex bathymetric setting. For this purpose MIKE 21 PMS (Parabolic mild-slope) and MIKE 21 BW (Boussinesq Wave) was used to reproduce the energy dissipation due to wave breaking as well as the wave refraction and wave diffraction. Read more here.
  • Uncertainty analysis to improve design criteria of wastewater treatment plants (WWTP): The Umbrella-DOUT initiative is a net of seven interconnected projects that aim at analysing how uncertainty is being tackled in wastewater treatment plant (WWTP) design. Design guidelines (Metcalf & Eddy, ATV, Grady, etc.) and safety factors are generally used to develop designs that ensure some effluent requirements (average ammonium below 3 mg/l; total nitrogen below 18 mg/l, etc.). Read more here.
  • Researching the Grand-Lieu Lake in France with MIKE 21: The Science University of Nantes is using MIKE 21 software for ecosystems research of the Grand-Lieu Lake in France. The natural area of the Grand-Lieu Lake is well protected, but suffers an alarming evolution including phenomena such as fast erosion of the macrophytes belt, significantly decreasing biodiversity, early blooming of cyanobacteria phytoplankton, and negative sedimentary balance. Read more here.
  • Modelling the Tohoku tsunami in Japan: One year has now passed since the tragic tsunami of 11 March 2011. Together with the Danish Authorities and especially the Royal Danish Embassy in Japan, DHI has provided assistance to Higashi Matsushima city, which is one of the hardest affected communities along the coastline of the Tohoku region. At Higashi Matsushima, the tsunami wave reached more than 10 m, propagated as far as 5 km inland, claiming at least 1039 lives of a population of 42,000, and destroyed more than 60 % of the city. Read more here.
  • Modelling the 11 April mini-tsunami in the Indian Ocean: In the afternoon of 11 April 2012, an earthquake occurred 500 km off the north-western coast of Sumatra, near the region where the devastating Indian Ocean tsunami was generated in 2004. On 11 April, the earthquake was felt strongly in Sumatra, but also in Malaysia, Singapore, and even in places like Bangladesh and the Maldives. The level of awareness was high, and shortly after the earthquake a tsunami warning was issued for the entire Indian Ocean due to a well-functioning tsunami watch, which was set into effect only seven minutes after the earthquake. Fortunately, a large tsunami did not materialise. Read more here.
Tips & Tricks
  • Plotting MIKE 21 spill levels in MIKE FLOOD: Do you know how to compare MIKE FLOOD spill levels along lateral links with MIKE 11 longitudinal profile results? If not, click here to find a tip that will guide you through it.
The latest newsletter can be viewed online here.

To subscribe to the newsletter(s), please visit
Monday, 9 July 2012
Heavy rain floods Plymouth, Yealmpton, Modbury and surrounding communities

The morning of Saturday 7th July 2012 saw Ivybridge, Yealmpton and Modbury hit by torrential rain and floods, while there was also localised flooding in and around Plymouth with a number of roads closed to traffic and transport services disrupted. Read more from 'This is Plymouth' >>>

Flooding in Sidmouth on 7th July 2012 (video by Fizzywack)

Flooding in Yealmpton on 7th July 2012 (video by Rubysdog)

Other news articles (with pictures) from around the web: -
I do try to keep things DHI focussed on this blog but this was a little close to home: -

River Erme after the flooding on 7th July 2012 (video by S.Lowery)

More news: -
Saturday, 7 July 2012
Previews of MIKE by DHI Release 2012

As in previous issues of our newsletter, we would like to disclose a preview of the upcoming MIKE by DHI software package 2012, which is scheduled to be released this September. The release will contain various new and exciting features, which we hope will improve your experience when using the software products, both with regard to usability, productivity, and enhanced applications.

Climate Change Tool: Sea Level Rise included

One of the interesting news in version 2012 of the Climate Change Tool is that Sea Level Rise scenarios are now included. The Climate Change Tool works on existing model setups and modifies the boundary conditions according to a chosen forecast (Global Circulation Model and Emission Scenario) and forecast year.

The changes in sea level are obviously of crucial interest for a number of applications, for example related to coastal defence works. In version 2012 of the tool, global mean sea level change is included as assessed in the IPCC Assessment Report No 4 and in three posterior estimations, in all cases for three different emission scenarios.

In order to evoke the Sea Level Rise changes, the user has to define:

  • Selected sea level rise model (including choice of lower, mean or upper level)
  • Projection year
  • Emission scenario

Click on the figure to enlarge.

FEFLOW 6.1: Watching the calibration quality
Another new feature concerns the calibration quality in FEFLOW 6.1. The calibration process is one of the most important and often most elaborate working steps when modelling groundwater systems. Having an easy and prompt response of the match between field data and computed values significantly reduces effort.

In FEFLOW 6.1, in-line visualisation of the local calibration quality at observation points assists the user during the calibration process (see figure). The deviation from the calibration target is depicted as an error bar where different colours accentuate possible violation of confidence intervals. Scatter plots finally summarise the overall match between measured and computed values.

Click on the image to enlarge.

For more information, please contact Alexander Renz, DHI-Wasy, Germany.
Downloading MIKE by DHI software has never been easier!

We are pleased to announce a significant improvement in user experience with MIKE software downloads.

This improvement is a direct result of the implementation of a new, external server hosting solution via Amazon, which facilitates easier access, greater stability, and faster download speed.

This new solution entails a number of advantages including: -
  • Less pressure on local DHI servers due to external storage
  • Scalability to servers available worldwide
  • And most importantly, improved experience for users when downloading MIKE by DHI software
  • In order to download our software, it merely requires a one-time registration to create a profile. When using this profile to log in to the download page, you immediately get access to multiple software downloads with no need for repeating the log in process.
Also, there are no download time limitations. This means that users, irrespective of location or connectivity, will be able to complete downloads without interruptions or disconnections.

We hope that you will appreciate this new download solution!

Please note: -
  • When registering for the first time, we encourage you to fill out all data in the registration form, as this will help us provide you with the best possible service.
To download the latest MIKE by DHI software please click below: -

Catchment Management

On the 20th June ESI Ltd held their annual water industry seminar in Reading which helped celebrate the opening of their new South East regional office. This year’s conference focussed on the benefits and implications of the rapidly evolving field of catchment management.

ESI have uploaded most of the presentations to their website – here – and DHI's contribution is presented below.
Integrated Water Management
View more presentations from sjf_dhi
Many thanks to Torsten Jacobsen for permission to use this presentation.

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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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