MIKE URBAN model simplification wizard automates network segmentation (data scrubbing, trimming, and merging) of both collection and water distribution systems. Simplification reduces the complexity of the network, which improves the efficiency of the hydraulic computations without compromising the integrity and accuracy of the model. Simplified networks are used in different contexts, such as on-line model applications, long term simulations, developing of strategic models and similar.

Scrubbing removes disconnected network elements such as unlinked nodes and links, removes dead-end pipes based on user specified criteria such as pipe lengths shorter than a user specified length and removal of pipes with a diameter less than a user specified diameter.

Trimming removes network parts outside an area of interest e.g. larger network branches. All connected elements such as catchments or water demands are automatically reconnected to remaining network elements based on user specification.

Merging removes interior pipe nodes by merging pipes into a single pipe with similar hydraulic properties equivalent to the original pipes. All connected elements such as catchments or water demands, are automatically reconnected to remaining network elements

The second service pack for MIKE Zero is scheduled to be released later this month.

A number of video tutorials have been recorded for MIKE URBAN 2007 to provide better understanding of the software and step-by-step user instructions.

These video tutorials include a quick introduction to modelling the drinking water and waste water networks, how to simplify networks, how to use scenario manager, how to run fire flow simulations and more.

Video tutorials for MIKE URBAN 2007

Requires MIKE URBAN 2007

MIKE Urban offers user defined keyboard shortcuts for many commands. Use <Ctrl> or <Alt> with the typewriter keys, and any combination of <Shift>, <Ctrl> and <Alt> with the function keys.

The following figure gives you an example on how to use numeric keys to invoke commands with a single keystroke.

Edit models much faster than before: Zoom in <+>, select catchments <1>, connect them to a node <4>, clear selection <0>, pan around <*>, select catchments <1>, connect them to a node <4>, and so on. Use one hand for the numeric keys and the other for the mouse. You don't have to operate the mouse with your left hand, but learn here about the benefits.

Connecting nodes is just one example. Use shortcuts with any editing task where you would otherwise click frequently on different tools.

To assign shortcuts, go to menu Tools > Customize > Shortcuts. Choose a command from the list and press "Create Shortcut". In the next dialog "Assign Shortcut" just press your preferred key (or combination of keys). Confirm with OK. "Remove" removes a single Shortcut, "Reset All" restores the original settings.

The above example uses the following setup:

View: Zoom Data: Fixed Zoom In: + (NUMERIC KEYPAD)
View: Zoom Data: Fixed Zoom Out: - (NUMERIC KEYPAD)
View: Zoom Data: Full Extent: / (NUMERIC KEYPAD)
View: Zoom Data: Pan: * (NUMERIC KEYPAD)

Tools: Selection: Clear Selected Features: 0 (NUMERIC KEYPAD)
Tools: Selection: Select Features: 1 (NUMERIC KEYPAD)
Tools: Selection: Select by Polygon: 2 (NUMERIC KEYPAD)
Tools: Selection: Zoom to Selected Features: 3 (NUMERIC KEYPAD)

SWMM5: Catchment Tools: Connetct To Node: 4 (NUMERIC KEYPAD)
...works with both MOUSE and SWMM5!

When you install a new version of MIKE Urban, your shortcuts will be lost, so write your settings down and apply them again.

Tip provided by Thomas Telegdy (DHI Agent Austria). Please see www.telegdy.at for further information on DHI Software in Austria.

Hyder Consulting (UK) Ltd. are supporting Birmingham City Council with one of DEFRA's (Department for Environment, Food and Rural Affairs) innovative fifteen new projects investigating how to reduce the impacts of urban drainage flooding in towns and cities across England. MIKE FLOOD has been selected by this pilot as the modelling tool being trialled to assist understanding of the local urban drainage problems.

For further details please see here

DHI Spain has recently finalised an inundation study for the Spanish company, Llorens Fornes S.L, in the province of Valencia. The objective of the study was to investigate if an area, in the village of Masalavés, would inundate during three different storms (T=25, T=100 y and T=500-year storms). The results and conclusions will be used as part of the zone re-classification process (rural to urban).

The study area with indication of the city of Masalavés and the river Júcar.

As shown in the figure, the inundation is caused by a combination of two factors: local rain, and overflow from the river Júcar.

The model was configured with the river Júcar incorporated as an open boundary, and the local rain introduced via the "new" facility in M21 version 2007 called "rain on land". The facility enables a simple hydrological model consisting of basically 2 parameters; precipitation and evaporation, which can be defined as a constant, time series, or map (2D). Factors such as infiltration, run off coefficients etc need to be incorporated into one of these two parameters.

Although it is simple, it is very useful for modelling flooding of areas without clearly defined flow-paths, as was the case in this study.

The results show that the local rain plays a vital role in mapping the flood risk areas. Furthermore, the study showed that it would be challenging to model each of the streams with an 1D model using the traditional cross sections and a pre-defined river network.

The conclusion was that the area in question was not located within a flood risk zone, considering the three return periods.

For further information please contact Peter Torp Larsen at ptl@dhigroup.com

Every year hundreds of members of DHI software community meet around the globe at one of our regional or national Conferences, User Group Meetings, round-tables or workshops.

The events offer an excellent opportunity to exchange experiences and ideas with fellow users and colleagues in an informal spirit - and to discuss the latest developments of our software.

A number of software training courses are normally offered in connection with our Conferences and User Group Meetings.

Please visit our entirely new web pages that will always tell you when and where you can meet us around the world: www.dhigroup.com/Software/Events

ACE 2007 Annual Conference and Exposition,

Metro Toronto Convention Centre, Toronto, Ontario, Canada
June 24-28, 2007

The ACE07 Exposition gives you access to the latest products and services available to ensure the water quality the public expects. With more than 500 exhibitors on hand to answer your questions and educate you about the latest technology available, you'll gather valuable insight and contacts with companies whose goal is to help you improve your results.

DHI will have a strong presence at this year's conference, with a full exhibition booth (#826), a spot in the New Product Technology Showcase, and a spot in the ESRI booth. DHI will be showcasing the latest version of MIKE URBAN 2007, together with the entire suite of DHI water modelling software products. If you are interested in learning more about DHI products and services and many other innovations and technologies in the water industry, then this conference is the perfect opportunity. You can learn more about the conference and registration at:
http://www.awwa.org/ace07/register/

Please contact Patrick Delaney, pad@dhigroup.com to schedule a meeting and a live demonstration of the software while you are at the conference, or just drop by at your convenience.

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Groundwater modelling - Moving beyond MODFLOW
Shrewsbury, UK, July 3rd 2007

MODFLOW is a valuable tool in our modelling toolbox and will continue to be so for many years to come.

However, our needs have evolved considerably since the mid-1990s, when the first MODFLOW user interfaces became widely available.

To name just a few, we are now challenged by

• Coupled groundwater-surface water interactions
• Distributed, dynamic recharge
• Fully integrated hydrologic water balances
• Detailed, irregular geometry
• Heat and density dependent flow
• Complex reactive solute transport processes
• Fracture flow
• etc. etc.

Please join us for a one-hour and informal seminar, where Douglas Graham will explore how FEFLOW and MIKE SHE can complement your MODFLOW modelling tools, and expand your modelling horizons.

For further information please contact Simon Mathews at sm@dhigroup.com, Phone +44-1694-722795 / +44-7971-940176

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International Conference ModelCARE 2007

Calibration and Reliability in Groundwater Modelling, Credibility of Modelling, Copenhagen September 9-13, 2007

Though the conference will cover the entire field of groundwater modelling the overall theme of the 2007 ModelCARE conference is Credibility of Modelling.

The principle topics addressed in the conference include:

• Credibility of modelling perceived by water managers and stakeholders in water resources management
• Geological modelling and conceptual model uncertainty
• Integrated hydrological modelling (coupled descriptions of saturated, unsaturated, surface water)
• Modelling of reactive and density affected transport
• Value of data at different spatial and temporal scales for model uncertainty reduction
• Use of new data types from geophysical and remote sensing techniques
• Developments in modelling and uncertainty assessment
• Parameter estimation and model calibration
• Groundwater modelling in relation to the Water Framework Directive and the Groundwater Directive

DHI staff will be presenting papers and posters as well as one of the key note addresses. A booth will be available where you can learn more about DHI's groundwater related products, MIKE SHE and FEFLOW. A FEFLOW course will be held prior to the conference.

Conference information is available here.

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32nd IAHR International Congress "Harmonizing the Demands of Art and Nature in Hydraulics", Venice, 2-6 July 2007

Join Intecno-DHI , Italy , and DHI DK at our stand in the exhibition area n. P1! DHI environmental modelling will be presented in specialised workshop during the Conference.

For further information please contact Intecno-DHI, Italy.

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9th DHI UK User Group Meeting, September 2007
Details to be announced.

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DHI Sweden User Group Meeting & ESRI Conference, Stockholm , Sweden , September 2007
Details to be announced.

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DHI Italy User Conference , Italy , October 2007
Details to be announced.

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"Enviro Asia 2007", 27-30 November 2007, Suntec City , Singapore.

DHI Singapore is exhibiting at DHI stand. For further information please visit DHI Singapore website or contact Ms Tham Sugin, DHI Singapore.

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2008

5th Asiatic-Pacific DHI Software Conference, Auckland , New Zealand , March 2008
Details to be announced.

Successful Software Seminar in Canada

On April 25th DHI hosted a well attended seminar in Québec City with more than 30 participants. The topic of the special seminar was "Advancements and Innovations in Marina and Coastal Modelling Technology". Amongst the presenters were Prof. Yvon Ouellet, Prof. Jean Loup Robert from Laval University and Dr. Samir Hamdi, Genivar.

For further information please contact Patrick Delany at pad@dhigroup.com