From release 2009, modelling of floods in urban areas has been made even easier through the full integration of 2D flood modelling into the MIKE URBAN modelling suite. The whole modelling process from pre-processing through to animated outputs and other results presentations can now be done from within the GIS based MIKE URBAN user interface.

The integrated 2D modelling includes the following new features:

• Seamless coupling of pipe and 2D overland flow model
• 2D model resolution and model area independent of DEM
• Editing of MIKE 21 2D model parameters from within MIKE URBAN
• Launching coupled pipe and 2D overland flow simulations
• Presentation of 2D overland flow results as time series, profiles or maps (maximum maps or animated maps)

Read more here: Toward Release 2009 - Urban News.

For further information please contact: Morten Rungø, mor@dhigroup.com

Floods can be very complex. For example, rising water levels in a river passing a city may not only produce bank overflow and flood the neighbouring areas, but may also give rise to backwater effects in the underground pipe network. This in turn may cause sewer overflow and the flooding of streets in areas, not directly adjacent to the river itself.

This is just one of many examples where multiple domains need to be taken into account in your flood modelling work. MIKE FLOOD has been enhanced in the 2009 release, allowing for a very flexible coupling of the two 1D engines for sewer and river networks and the 2D overland flow engine providing flow transfers and feedback mechanisms between all three engines. This model is extremely versatile and is indispensable when investigating complex flood scenarios in urban areas located in riverine and coastal areas.

Read more here: Toward Release 2009 - Water Resources News.

For further information please contact: Børge Storm, brs@dhigroup.com

In 2005 DHI announced the decision to move the most computationally heavy software programs to the new Microsoft® Windows® x64 platform. The high-performance 64-bit environment supports much larger addressable memory than the 32-bit environment and furthermore offers better performance in terms of speed and reliability. Prior to this announcement DHI had joined Microsoft Corp’s Technology Adapter Program (TAP). The TAP gave DHI a first mover advantage on the new 64-bit computing platform. Furthermore Microsoft® selected DHI as one of three companies for the official Microsoft® launch of Windows® x64 as an example within scientific computing.

The first programs that were migrated to the Windows® x64 platform were the flexible mesh version of the three-dimensional model, MIKE 3, for water flow and the Spectral Wave model, MIKE 21 SW. Due to lacking 64-bit versions of third party components these x64 versions were not ready for an official release on the MIKE by DHI DVD. However, with the 2009 release we can finally offer our users true 64-bit versions of MIKE 21 wave and flow models, MIKE 3 and the 2D component in MIKE FLOOD. Besides the flexible versions also the classic single and nested grid versions have been migrated to the Windows® XP and VISTA® x64 platforms, and full integrated use including dynamic coupling of models/modules is possible.

Customers running on one of these 64-bit OS will in addition to leverage the larger memory access with the 64-bit CPUs also experience an approximate 5-15 pct performance gain.

An application example pushed beyond the limits of the 32-bit hardware is a dynamically coupled wave-current model (MIKE 21 SW and HD) with interactions between wave-depth, wave-currents and wave induced flow. With a flexible mesh comprising approximately 60,000 elements this is not possible using 32-bit memory access.

Read more here: Toward Release 2009 - Coast & Seas News.

For further information please contact: Ole Svenstrup Petersen, osp@dhigroup.com

The 2009 release of MIKE URBAN includes a long list of new features and improvements of existing features in the WD (Water Distribution) module. Some of these have been described in previous newsletters and here are more:

MIKE URBAN WD 2009 – Define number of decimals for labelling results on the map
MIKE URBAN allows you to define the number of decimal places used for the results labelling. In order to define the number of decimals, which are displayed when labelling simulations results on the Map, click the result layer in the Table of Contents (TOC) and select “Label Appearance”. Type in the number of decimal places (the default is 2) and click OK when done.

Illustration: Number of decimals can be defined for the results layers

Illustration: Labels are displayed based on the defined number of decimals

This feature is available in all modes (CS, WD) of MIKE URBAN 2009.

For further information please contact: Petr Ingeduld, p.ingeduld@dhigroup.com

MIKE URBAN WD 2009 – Save legend used for result layers
It is possible to save the colour legend used for the thematic mapping of result layers in a file and load it from the save file next time you want to use it for the same or another model.
In order to save or load the colour legend, click the result layer properties and select “Graduated Colour”, “Load” and “Save” buttons allow you to save the settings into a configuration file or load it from the previously saved configuration file.

Illustration: Load or save the legend settings

This feature is available in all modes (CS, WD) of MIKE URBAN 2009.

For further information please contact: Petr Ingeduld, p.ingeduld@dhigroup.com

MIKE 11 users normally analyse their simulation results with MIKE View, which contains a significant number of features for exploring, analysing and presenting results from one or more simulation runs. Once the simulation has been set up satisfactorily, the typical study involves comparison of various scenarios by analysis of results at key locations. The simplest way to extract simulation results at selected locations is the Res11Read.exe utility program for MIKE 11, located in the MIKE Zero bin directory.

This utility is run from a command prompt, and creates plain text format files containing the extracted results. To run the utility and see the command syntax and available options, navigate from your command prompt to the location of the simulation result files and type in res11read following the full path to the MIKE Zero bin directory (default; “\program files\dhi\mikezero\bin\res11read”). The syntax and switches will then be displayed. These are also documented in Appendix B of the MIKE 11 User Manual.

It is also worth noting that one very useful option is to extract the simulation files which were used to generate the result file. This very useful if you have lost track of the links between the simulation files and result files. Also, the Res11Read utility can run as part of a batch execution and extraction of results from multiple result-files can therefore be executed in one single batch-operation.

MIKE Flood has been chosen by the two northernmost German Federal States (Bundesländer) -Schleswig-Holstein and Hamburg – as a standard tool for the assessment of flood maps in both states. Flood maps and flood risk maps will be modelled using both MIKE 11 and MIKE Flood, depending on the characteristics of the rivers.  With rivers crossing state borders, a standard tool was needed for both Schleswig-Holstein and Hamburg.

The authorities in Schleswig-Holstein had been using MIKE by DHI for several years and DHI-WASY is happy that MIKE has now been chosen as the “official standard”. Both states purchased special licenses for the flood studies, which will be transferred to the consultants. This setup ensures that software costs remain predictable during the 4-year project phase. DHI-WASY will provide dedicated training courses and support for the consultants during that period. After the project phase, it is anticipated that both states will retain their professional licenses. DHI-WASY is looking forward to a good and long-lasting co-operation with the authorities and consultants in Northern Germany.

For further information please contact: Ralf Engels, rae@dhigroup.com

There is a growing awareness in Australia that the interaction between surface water and groundwater has been overlooked in the management of water resources.  This interaction is vital for understanding the complex hydrologic impacts of land use and climate change, particularly in an environment where the demand for water exceeds the availability of the resource. Historically, surface water and groundwater were handled separately, both technically and institutionally. This may have performed well when considering each in isolation, but there is growing recognition that the interaction between surface water and groundwater needs to be managed integrally. MIKE SHE is being recognised for its world leading capability in this area. This is justified by numerous independent reviews ranking MIKE SHE as the world’s most comprehensive and scientifically sound model for surface water - groundwater interaction.

MIKE SHE integrates many of the water management issues that Australia is facing including evaluating wetland management, surface water impact from groundwater withdrawal, landuse impacts, climate change impacts, environmental flows assessment and water quality. MIKE SHE’s user-friendly ability to simulate the entire land phase of the hydrologic cycle has made it the tool of choice for a wide array of applications.  These include applications as diverse as groundwater recharge and river interaction in the Northern Territory, salinity and drainage management in Western Australia, groundwater related urban flooding in New South Wales, plantation and wetland interactions in South Australia and land use impacts in the Australian Capital Territory.

For further information please contact: Dr Graeme Cox, gjc@dhigroup.com

MIKE SHE outputs from a recent salinity and drainage management study in Western Australia

Historically the Gold Coast has been affected by a limited number of severe storm events. But with a changing global climate there is reason to believe this frequency will increase with cyclones tracking further south and becoming more frequent. In response to this DHI and Gold Coast City Council devised a modeling approach that allows for a number of design cyclone scenarios to be run through a suite of models to produce inundation maps of the Gold Coast to aid in emergency response and decision making procedures.

The Gold Coast waterways system is very complex with waterways extending inland and the Broadwater connected to the open ocean through the Seaway, Jumpinpin and Moreton Bay. To accurately predict the inundation associated with a tropical cyclone, high resolution of key areas within the region is required to resolve the timing and accumulated storage in the waterways prior to the occurrence of maximum water levels.

The numerical model consisted of coupling the hydrodynamic model Mike21 HD with the spectral wave model Mike21 SW and adopting a flexible mesh to account for the high resolution bathymetry requirements. The numerical model was successfully calibrated against measured field data surveyed during the occurrence of the 2007 East Coast Low and subsequently used to calculate inundation maps in response to 108 generic cyclones provided by the Australian Bureau of Meteorology.

For further information please contact Simon Brandi Mortensen at sbm@dhigroup.com

Every year hundreds of current and future MIKE software users meet around the globe at one of our regional or national conferences, user group meetings, road shows, streamline seminars, round tables or workshops. In order to respond to our users’ requests, needs and recommendations we have decided to increase the number of our MIKE by DHI events significantly in 2009.

We are proud to announce that this year we, till now, have planned 15 MIKE by DHI events around the world. More events will be all added in the next few months. Please visit our DHI Global Event Calendar, which always keep you updated on upcoming events. If you do not find what you are looking for please contact your local DHI office which will tell you when and where the next MIKE User Group Meeting or Conference will take place in your country or region in 2009.

Joint User Conference - Norway & Sweden
3-4 March 2009, Oslo, Norway
For further information please contact Mr Tomas Eidsmo, DHI Norway, Mr Håkan Strandner, DHI Sweden and the Conference website 

2nd User Group Meeting - New Zealand
2-3 April 2009, Wellington, New Zealand
For further information please contact Mr Pierre Høvelt, DHI New Zealand, or visit the NZ User Group Meeting website

Annual User Group Meeting - Oregon
20 April, Portland, Oregon, US
For further information please contact Ms Barbara White, DHI Canada

3rd User Group Meeting - Denmark
22-23 April 2009, Hørsholm, Rungstedgaard Conference Centre, Denmark
For further information please contact Ms Loni Skov Madsen, DHI Denmark or visit the DK User Group Meeting website

Annual User Group Meeting & Training Sessions - Germany
28-29 April, Cologne, Germany
For further information please contact Mr Ralf Engels, DHI-WASY, Germany or visit the User Group Meeting website

Annual User Group Meeting & Training Sessions - Switzerland
5-6 May, Luzern, Switzerland
For further information please contact Mr Ralf Engels, DHI-WASY, Germany or visit the User Group Meeting website

MIKE by DHI User Group Meeting - Australia
1 June, Sydney, Australia
For further information please contact Mr Stefan Szylkarski, DHI Australia

Annual User Group Meeting - Thailand
18-19 June, Bangkok, Thailand
For further information please contact Ms Varaporn Buranautama and Mr Somchai Chonwattana, DHI Thailand.

Annual User Group Meeting - California
21 September 2009, San Diego, California, US
For further information please contact Ms Barbara White, DHI Canada

11th User Group Meeting & Training Sessions - United Kingdom
30 September -1 October 2009, Lion Quays, Oswestry, Shropshire, England
For further details please contact Mr Simon Matthews, DHI UK or visit the UK User Group Meeting website

13th User Conference - Japan
7-8 October, Tokyo, Japan
For further information please contact Mr Francois Salesse, DHI Japan

3rd User Conference - Italy
7-8 October, Torino, Italy
For further information please contact Ms Birnur Yavuz, DHI Italy or visit the Conference website

6th Asia-Pacific DHI Software Conference - Singapore
12-13 October, Singapore
For further information please contact Ms Jasmine Foo and Ms Gin Tham, DHI Singapore.

Annual User Group Meeting - India
2-3 November, New Delhi, India
For further information please contact Ms Rachana Agrawal and Mr Ajay Pradhan, DHI India.

FEFLOW 2009 - 2nd International FEFLOW User Conference
14-18 September 2009, Potsdam/Berlin, Germany
FEFLOW 2009 will mark the 30th anniversary of the FEFLOW software, today’s premium simulation software for subsurface and porous media modelling.

Conference highlights include:

• Keynote presentations of trends and latest ideas in numerical modelling of water resources and related fields
• User presentations
• Product updates & software demonstrations
• Opportunities to meet DHI-WASY partners and FEFLOW users worldwide
• Training courses

For further information please contact the Conference Secretariat or visit the Conference website

Every year more than 2,000 current and future users attend our global MIKE software training and courses. Participants come from governmental agencies, regional and local water bodies, research institutions and universities, professional bodies and engineering companies, urban water utilities, coastal and harbour authorities.

The following training schemes are offered:

• Public standard courses
  Our standard courses are modular and allow you to build your expertise so as to match the requirements of your job. Likewise, they assist you in expanding/upgrading your team’s productivity, modelling skills and expertise in a quick, efficient and cost-effective way.
• Tailored courses
  Customised courses are based upon your own data and range from short courses to longer, specialised training packages. These courses are typically offered at your own premises.
• Online webinars
  Webinars give you an overview of the basic features of our MIKE by DHI tools.

Further information
Our Global Course Calendar always tells you when, where and which courses are offered in your country or region.

You are also welcome to contact our International Course Secretariat: courses@dhigroup.com

We are pleased to announce our Global Software Training Calendar for 2009.

Should the training course of your interest not be on the list, please feel free to contact our International Course Secretariat at DHI in Denmark or your local DHI office.