MIKE by DHI UK Blog

More user presentations from the 14th MIKE by DHI UK User Group Meeting!

2D Flood Modelling in Urban Areas (Grantley Smith, University of Newcastle, NSW)	Wave resource assessment for Oyster farms using MIKE 21 (Ian Harris, Aquamarine Power)

Please do not hesitate to contact any of us if you have any questions or unresolved feedback: -

• Simon Matthews on 01694 722795 or sm@dhigroup.com
• Steve Flood on 01752 691723 or sjf@dhigroup.com

Thank you all once again!

Meet us at Working in the Wet 2012 on Thursday 26th April 2012 in Winchester

Running since 2002, ICE South Maritime Group’s popular biennial conference is designed for professionals, students and those with a keen interest in the maritime field and, as ever, promises to be both informative and entertaining. Read more here.

DHI has its own stand to welcome 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 meeting in advance, please contact: -

• Nick Elderfield on nje@dhigroup.com
• Sonja Pans on spa@dhigroup.com

We look forward to seeing you!

Example Procedure for Calculating Flooding due to Overtopping of Defences by Wave Action

Please Note: This example methodology is for advice only. No liability for the consequences of any actions taken on the basis of the advice provided is accepted.

Ultimate Aim

The standard approach to calculating wave overtopping volumes is through the use of EuroTop (http://www.overtopping-manual.com/), the European Overtopping Manual, accessed via the internet and developed from a combined update of the Environment Agency’s ‘Overtopping of Seawalls: Design and Assessment Manual’ (R&D Technical Report W178, 1999), the Dutch ‘Technical Report: Wave run-up and wave overtopping at dikes’ (TAW, 2002 English edition) and the German ‘Die Küste’ (EAK, 2002).

This Manual offers a number of methods to calculate wave overtopping at a range of different coastal structures. Common to each method is the requirement for wave climate at the toe of the structure. It is the calculation of these parameters that is the most significant challenge in the correct usage of EuroTop. Use of nearshore or even offshore waves can result in incorrect estimation of overtopping volumes.

This methodology offers some guidance to achieving the required values for correct use of EuroTop.

Step by Step Method

1. Offshore wave conditions
   
   The most accessible wave conditions are those available from the Met Office wave model. These are generally considered to be ‘offshore’ as they tend to be in relatively deep water. These can be applied as boundary conditions to an offshore wave transformation model.


2. Offshore wave transformation model
   
   The MIKE 21 Spectral Wave (SW) model simulates wave growth due to wind action, transformation due to refraction and shoaling resulting from depth variations, and decay due to whitecapping, bottom friction and wave breaking. The effects of wave-current interaction, non-linear wave-wave interaction and diffraction are also included and areas which dry out can be included within the model.
   
   MIKE 21 SW is applied on a flexible mesh so offshore areas can be defined with a relatively coarse resolution while inshore areas are resolved on a finer mesh. This allows acceptable run times to be balanced by high resolution in coastal areas.


3. Nearshore wave conditions
   
   For an exposed simple coastline, it is tempting to use the output from MIKE 21 SW directly in EuroTop. Unless the defence structure has been included in the model at a high resolution, this may result in overestimation of overtopping as wave heights extracted from the model output at the coastline are unlikely to accurately represent the wave climate at the toe of the structure. For more complex coastlines where reflection is an important process, or for wave action within harbours, outputs from SW are unlikely to be suitable for use in EuroTop as the waves will not be representative of the climate at the toe of the structure.
   
   Nearshore wave conditions (generally just offshore of the breaker zone) can be extracted from the MIKE 21 SW outputs and used as boundary conditions for a MIKE 21 Boussinesq Wave (BW) model which is a phase-resolving model that solves the shallow water equations for waves in nearshore areas using the Boussinesq approximation.


4. Nearshore wave transformation
   
   MIKE 21 BW can be used in either 1D or 2D forms. If the coastline where the defence structures are located is relatively straight and is sectionally uniform (i.e. can be divided into a number of sections which have uniform defence structure properties and relatively uniform nearshore bathymetry), a 1D approach can be used to transform the nearshore waves along a profile normal to the defence structure. By including the defence structure geometry in the BW model bathymetry, the wave climate at the toe of the structure can be directly extracted from the 1D BW model results.
   
   For more complex coastlines or harbour sites, a 2D approach may be required. Again, inclusion of the defence structures in the model bathymetry will ensure that the wave climate at the toe of the structure can be extracted directly from the model results, at any site along the defences where overtopping calculations are required.


5. Overtopping calculation
   
   Having determined the wave climate at the toe of the defence structures, calculation of overtopping volumes using EuroTop can be undertaken. Resultant volumes can then be routed overland behind the defences using MIKE 21 or MIKE FLOOD.

For more information, please visit http://www.mikebydhi.com/Products/CoastAndSea/Waves.aspx

The 14th* MIKE by DHI UK User Group Meeting was a great success!

We would like to extend our thanks to the 65 clients – both present and potential users – who participated in the event; particularly those who delivered the many varied and informative keynotes and user presentations.

The full list of presentations – including abstracts – will be added to the UGM page soon. Some users have already given permission for us to make their presentations available online. These papers are available below, and we hope to add download links for other papers soon.

On the second day, 45 users attended the various training sessions. The training materials, and accompanying documents, featured in the sessions will be made available to all participants upon request – some are available below.

Aquifer Storage and Recovery in a Confined UK aquifer: FEFLOW - Artificial recharge modelling (Mike Streetly, ESI International)	Recent Experiences in Regional Scale FMHD Modelling: A Case Study of The Pentland Firth, UK (Jack Shipton, ABPmer)
1-2-3D ‘Dee’ - River Dee Project: An Update and snapshot of a multi-dimensional MIKE Model at a single site ...plus Other Random Musings (Simon Matthews & the UK DSP Team, DHI)	Introductory MIKE FLOOD seminar, including discussions on model stability, and a detailed look at some of the new features of MIKE FLOOD Release 2012 (Torben Strange Jensen, DHI)
Shoreline Management Workshop: How to Protect and Develop your Coasts (Karsten Mangor, DHI)	Shoreline Management Guidelines: eBook (Karsten Mangor, DHI)

Please do not hesitate to contact any of us if you have any questions or unresolved feedback.

Thank you again!


* we think!

Schnabel Spillway

Animation of spillway flow (MIKE Animator).

We are looking forward to welcoming you to our Spring 2012 User Group Meeting on the 20th of March 2012, and Seminar Day on 21st of March 2012, at the Lion Quays Waterside Resort, Oswestry, UK.

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

2012 MIKE by DHI UK User Group Meeting: Agenda

Tuesday 20th March 2012

In addition to the user presentations listed below, we will be detailing the new features and technologies available to you in the forthcoming MIKE by DHI Release 2012, as well as outlining our future plans for the software portfolio: -

Keynote Presentation

• Urban Flood Flows: The suburb of Merewether in Newcastle is providing engineers with critical data that will inform emergency personnel on how to plan better for the floods which have wreaked havoc across Australia in the past few years. A model of the suburb has been created in Sydney's Water Research Lab (Grantley Smith, University of Newcastle, NSW)

Client Presentations: MIKE BASIN – MIKE 21

• River Don - Integrated Catchment Management for Yorkshire Water: Integrated Catchment Management using MIKE BASIN (Sally Bielby, JBA)
• Reservoir Discontinuance and River Restoration using MIKE 21 FMST: Design Background to a Reservoir Project – The Hydraulic Model and lessons learnt (Mark Bailes, MWH)
• Maritime Archaeological Modelling using MIKE 21 - Later Prehistoric Seafaring in Scilly: Modelling of changing ocean/sea conditions for the Holocene around North West Europe, with more detailed focus on the Isles of Scilly (Rodrigo Pacheco-Ruiz, Southampton University)

Client Presentations: RENEWABLES - MIKE 21 – MIKE FLOOD – MIKE 11

• Wave resource assessment for Oyster farms using MIKE21: Ocean Power – Energy Field Characterisation (Ian Harris, Aquamarine Power)
• Modelling the Severn Barrage: A Review of Modelling Strategies for a major UK Renewables Project (John Osment, Halcrow)
• Tellisford Mill – Green Electricity from Run of River Hydro in an Historic Setting: A Low-head Hydro Scheme 7 years on from the initial Flood-risk Assessment (Anthony Battersby, FBA / Mendip Power Group)
• Validation of a MIKE 21FM Spectral Wave model: For the purpose of an Offshore Wind Farm Coastal Processes Assessment (Emma Holland, METOC)

Client Presentations: MIKE 21 BW – MIKE 21 SW – MIKE 21 AD

• Wave Modelling with MIKE 21 BW & SW, and Cliff Recession Review: The ‘Baroque on Lamma’ Marina Project in Hong Kong - A MIKE 21 SW & BW Model, and a Review of Empirical Techniques for Analysing Cliff Recession (Vicky Tonks, Mott MacDonald)
• Long term coastal water quality predictions using convolutions: A MIKE 21/3 AD Water Quality Study (James Tomlinson, ATKINS)
• Recent Experiences in Regional Scale FMHD Modelling: A Case Study of The Pentland Firth (Jack Shipton, ABPMER)

Client Presentations: FEFLOW – HABITATS – MIKE FLOOD 1-2-3D

• Aquifer Storage and Recovery in a Confined UK aquifer: FEFLOW - Artificial recharge modelling (Mike Streetly, ESI International)
• Compliance with The Habitats Directive and Wetlands Ecology at a SSSI: Review of a Wetland Creation Project - 5 Years On (Michael Limbrey, Montgomery Waterway Restoration Trust)
• 1-2-3D ‘Dee’ - River Dee Project: An Update and snapshot of a multi-dimensional MIKE Model at a single site ...plus Other Random Musings* (Simon Matthews & the UK DSP Team, DHI)
  
  *time permitting!

Wednesday 21st March 2012

Here there is a choice of three separate 'Tracks'. We will also endeavour to add Ad Hoc inset 'How To...' sessions which can be mixed and matched according to your requirements: -

• Water Resources: A detailed look at the new features of MIKE FLOOD Release 2012 (with example applications), followed by an introductory MIKE FLOOD seminar, and discussions on model stability
• Ground Water: An Introduction to 3D Visualisation using FEFLOW

• Shoreline Management (Marine): How to Protect and Develop your Coasts

The above 1-day course on Shoreline Management will include an overview and discussion of the following topics: -

• Introducing coastal and estuarine processes (physics)
• Understanding sources of shoreline impact (anthropological effects)
• Accounting for future variations in environmental conditions (climate change & policy)
• Fitting the complexity of the modelling to the level of the study (regulator response)

The free 1-day Shoreline Management course is a shortened version of a comprehensive 4-day training course, if you are interested in the full course please contact us.

Participation in the User Group Meeting, and the Training Seminars, is free of charge. The Hotel is offering a special B&B rate of £88.50 per person, per night, including Breakfast & Dinner. There is also a non-participant ‘Partner’ package available @ £48.50 extra per night, including Breakfast & Dinner.

Online booking is now available via www.mikebydhi.com/Events/UKUGM2012, so get your name on the most sought after list of the year so far!


If you would like more information about the content of the event please contact: -

• Simon Matthews on 01694 722795 or sm@dhigroup.com
• Steve Flood on 01752 691723 or sjf@dhigroup.com

.

Previews of MIKE by DHI 2012 Release

As detailed in the February 2012 issue of our newsletter, we would like to present some previews 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: Selective Mesh Smoothing for Finite-Element Meshes

Now you can look forward to improved model quality and even faster modelling with the upcoming FEFLOW 6.1!

Smoothing a finite-element mesh can significantly improve the quality of a mesh that, in some cases, might be unsatisfactory after the generation process due to the presence of too many triangles with acute angles. Within groundwater modelling it is essential to keep hydraulic structures, e.g. well locations and other structures defined by the user at their original position. In FEFLOW 6.0, only a global mesh-smoothing option was available, which does not provide the means to exclude selected mesh nodes from shifting positions during the smoothing process.

With the upcoming version of FEFLOW 6.1, we have improved the smoothing functionality significantly: Smoothing can now be applied in selected areas of the finite-element mesh, only allowing maintaining the original positions of boundary conditions etc. as defined by the modeller.

WEST: How to convert plant layouts and experiments from older WEST versions?

The new WEST3 conversion tool allows for converting plant layouts and experiments from WEST 3.7.6 to WEST 2011. It will be available with the release 2012 and via download at the MIKE by DHI website.

Layouts that are based on the standard WEST model library are supported without further ado. During conversion, the user can choose whether to adopt the new WEST 2011 icons, or the old WEST 3.7.6 icons for the converted layout. The conversion tool does not require WEST 3.7.6 to be installed. However, it does require a valid WEST 2011 license.

Please do not hesitate to contact MIKE by DHI support if you have any questions related to WEST, or how to get the most out of the software.

MIKE URBAN: Storm Water Tools

With the release of MIKE URBAN 2012, the Storm Water Tools will be fully implemented into MIKE URBAN using either MOUSE or SWMM as simulation engine.

The MIKE URBAN Storm Water Tools focus on building the Storm Water model within a 1D framework. The tools supplement the standard MIKE URBAN installation by empowering the user with the ability to carry out:

• Lateral snapping of digitised rivers to the lowest point in DEM
• Cross section extractions from DEM
• Auto connections of overland network to sewer network
• Sequential labelling of nodes
• Catchment slope and length calculations

Highlights from The Network (March 2012)

The latest MIKE by DHI NetWork newsletter has been published, and a selected article is presented below: -

Application Examples

• Protecting clean drinking water from Lake Ontario, Canada:
  
  Most of the North American region and in particular Ontario’s 13 million residents are highly dependent on clean drinking water from one of the Great Lakes. Thus, as contamination of the lakes could have severe consequences for many communities, a study was initiated to investigate potential threats to the water quality of Lake Ontario.
  
  As a part of Ontario’s Source Water Protection program, a group called the Lake Ontario Collaborative was formed to study the potential threats to the drinking water. They have investigated potential impacts that activities on land, such as potential spills from surrounding waste water treatment plants, nuclear power plants, petroleum pipelines, and industrial facilities could have on the contamination of the water quality at the areas of intakes. For this purpose, they used an events-based approach, where potential spills were modelled by calculating the hydrodynamics as well as different aspects of the water quality. By using a full three dimensional illustration of water motion, including thermodynamics, it was possible to make accurate simulations and predictions of water currents in the lake and simulate the potential damage of a spill scenario.
  
  As a result, they were able to develop intake protection zones. The zones were used to help raise awareness of the potential environmental and health risks that potential spills could entail as well as guide the preparation of emergency response planning in the event of a spill in the future. Want to read more? Click here.

The newsletter can be viewed online here.

To subscribe to the newsletter(s), please visit http://www.graphicmail.com/rwcode/subscribe.aspx?SiteID=3526&Mode=subscribe

We are looking forward to welcoming you to our Spring 2012 User Group Meeting on the 20th of March 2012, and Seminar Day on 21st of March 2012, at the Lion Quays Waterside Resort, Oswestry, UK.

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

2012 MIKE by DHI UK User Group Meeting: Proposed Agenda

Tuesday 20th March 2012

The User Group Meeting will cover the follow topics: MIKE Marine Modelling including WQ & Wave Modelling, Urban Flood Routeing & Hazard Mapping, Water Resources including Channel and Reservoir Flood Modelling & Catchment Integration, and Ground Water Quality & Artificial Re-charge Modelling. The following presentations are confirmed: -

• Urban Flood Flows (Grantley Smith, University of Newcastle, NSW)
• Reservoir Discontinuance and River Restoration using MIKE 21 FMST (MWH)
• Wave Modelling with MIKE 21 BW & SW, and Cliff Recession Review (Mott MacDonald)
• Aquifer storage and recovery in a confined UK aquifer (ESI)
• Integrated Catchment Management with MIKE BASIN (JBA)
• Maritime Archaeological Modelling using MIKE 21 (Southampton University)

For a taster of Grantley Smith's presentation, please see the video below or read this news article: http://www.nbnnews.com.au/index.php/2012/02/09/pasha-bulker-storm-changes-the-way-we-plan-for-floods/.

The suburb of Merewether in Newcastle is providing engineers with critical data that will inform emergency personnel on how to plan better for the floods which have wreaked havoc across Australia in the past few years. A model of the suburb has been created in Sydney's Water Research Lab.

Wednesday 21st March 2012

It is envisaged that the proposed Training Seminars will cover the follow topics: -

• Urban Flood: Why DHI is the largest supplier of Urban Water modelling software in the world...
• Water Resources: 1D / 2D Integrated Flood & Water Quality
• Ground Water: An Introduction to 3D Visualisation using FEFLOW

• Shoreline Management: How to Protect and Develop your Coasts

The above 1-day course on Shoreline Management will include an overview and discussion of the following topics: -

• Introducing coastal and estuarine processes (physics)
• Understanding sources of shoreline impact (anthropological effects)
• Accounting for future variations in environmental conditions (climate change & policy)
• Fitting the complexity of the modelling to the level of the study (regulator response)

The free 1-day Shoreline Management course is a shortened version of a comprehensive 4-day training course, if you are interested in the full course please contact us.

More information will follow soon.

Participation in the User Group Meeting, and the Training Seminars, is free of charge. The Hotel is offering a special B&B rate of £88.50 per person, per night, including Breakfast & Dinner. There is also a non-participant ‘Partner’ package available @ £48.50 extra per night, including Breakfast & Dinner.

Online booking is now available via www.mikebydhi.com/Events/UKUGM2012, so get your name on the most sought after list of the year so far!


If you would like more information about the content of the event please contact: -

• Simon Matthews on 01694 722795 or sm@dhigroup.com
• Steve Flood on 01752 691723 or sjf@dhigroup.com

.

Previews of MIKE by DHI 2012 Release

In the coming issues of our MIKE by DHI NetWork newsletter, we would like to disclose some previews of the new MIKE by DHI software package 2012, which is scheduled to be released this summer. 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.

Improvements for MIKE Animator in development

In 2012, MIKE Animator is to be replaced with MIKE Animator Plus. Compared to the existing MIKE Animator the new MIKE Animator Plus will offer an extended set of features. The most important of these new scheduled features are be:

• Support for MIKE 3 Flexible Mesh result files - including vertical and horizontal slices, sigma layered slices and isosurfaces.
• Support for MIKE 3 Classic result files - including vertical and horizontal slices, sigma layered slices and isosurfaces.
• Extended image draping – meaning that multiple geo-referenced images can be rectified online and draped onto selected surfaces
• Import of solids – solids can be buildings, dams or other types of structures.

The above example shows a MIKE 3 Flexible Mesh result file with two vertical and one horizontal slice. This new feature will allow the user to get a much better overview of large 3-dimensional result files than ever before.

Littoral Processes FM: Re-design and development of LITPACK

In version 2011, the first step of the re-design of LITPACK was released, including the modules LITSTP and LITDRIFT. In the scheduled release for 2012, this re-design continues and includes the functionalities included in LITLINE.

The redesign constitutes an important milestone in the development of the system with regard to improved usability and integration into the coupled FM modelling system. The most obvious changes include the new user interface, which have the same look and feel as the rest of the MIKE Zero based products, including MIKE 21. Also the file formats have been changed. There will be one common set-up (pfs) file for all LITPACK-modules and the consequent use of standardised dfs-file formats has made it possible to introduce a higher flexibility when defining input- and output data. In this sense, one of the improvements included in the release in 2012 is the ability to work with an unlimited number of wave climates along the coastline, defined in a dfs1-file. Furthermore, all data in Littoral Processes FM will be geo-referenced, something which also makes it possible to display data in a graphic, geo-referenced view.


The above example shows the geographic positioning of groyne structures, with a mesh file shown as background.

Behind the scenes of MIKE URBAN 2012

Also MIKE URBAN users will notice improvements in 2012, where the new MIKE URBAN will transform the way people use hydraulic software. Be more productive and take advantage of the new, scheduled processing features of MIKE URBAN.

Currently our developers work hard to implement calibration plots and reports inside MIKE URBAN. This functionality will support plots of measured and simulated data. MIKE URBAN users will benefit from the possibility to generate series of calibration plots showing corresponding values of measured and simulated data along with comparison statistics in a tabular form. Find out more about other features of MIKE URBAN in one of our next newsletters.

The latest MIKE by DHI NetWork newsletter has been published, and selected articles are presented below: -

Product News

• MIKE by DHI ISO 9001 certification: We are proud to announce that DNV has granted DHI the official "ISO 9001: Quality Management Systems" certificate. "Consistent, high quality of not only our software development processes but of the entire user experience with the MIKE products is our single highest priority" says Jørgen Bo Nielsen, Managing Director of the MIKE by DHI global business. Click here to read more about the ISO 9001 certification or click here to read more about it in our latest newsletter.
• MIKE by DHI in the CLOUD: Meet your deadlines without buying more hardware or software. You can now get easy access to more licenses and more hardware through the new MIKE by DHI Software as a Service (SaaS) Portal. Get started with MIKE in the cloud now! Click here to go to the MIKE by DHI SaaS Portal or click here to read more in our latest newsletter.

Application Examples

• Study in Florida accomplishes reduction in dredging frequency: The Matanzas Inlet in Florida and an Intracoastal Waterway close to the inlet were challenged with high waves and high levels of shoaling. This was due to a close proximity to a natural sandy inlet, causing sediment transport into the Intracoastal Waterway. The challenge of high maintenance requirements of the Matanzas Inlet in Florida has caused the Florida Inland Navigation District to initiate a study to investigate the inlet area and examine alternatives to reduce the sediment inflow into the waterways. The study was performed by Taylor engineering and a coastal model was developed using MIKE21. With concerns to the estimated construction and maintenance cost, a deep sediment basin was chosen, from several alternative solutions, which would reduce dredging frequency in the Intracoastal Waterway to one dredging operation every four years as opposed to the previous average of 2.7 years. Read more here.
• Floating breakwater reduces wave heights in tugboat port in Germany: In one of the major ports, Jade Weser Port, in northern Germany the construction of a temporary tugboat port was challenged by high waves of up to 0.8 m for a mean water level of +3.00 m NN within the port. This was caused by an exposed location of the port affected by primarily eastern and northern winds. A study was conducted for client, Inros Lackner, in order to discover ways of reducing the impact of the winds within the port area using a MIKE 21 Boussinesq wave model (BW). The study determined the actual height of the waves and a simulation of the possible reduction was made. The reached solution became a floating breakwater within the port that would reduce the wave heights of about 10–30 pct. With the combination of expert consultancy and high quality software, they were able to reach a solution that was inexpensive, fairly easy to install, and with great result for the client. For more information, read here or please contact Oliver Stoschek or Anja Brüning.
• New insight into Bull Sharks' behaviour in Australia using individual-based modelling: Studying fish, sharks, and other marine mammals is often a challenge due to lack of accurate information that provides a realistic portrait of their living conditions, movements, and the elements that affect their behaviour. Researchers at Griffith University in Queensland in Australia have recently successfully employed an individual-based modelling technique to investigate the habitat and movement patterns of juvenile bull sharks in the Tallebudgera Creek estuary in Australia. The modelling tools in MIKE21 and ECO Lab were used to accurately capture the hydrodynamics of the estuary to create a virtual habitat and integrate tracking results of a number of juvenile bull sharks. Their work has provided new valuable knowledge and a fairly accurate picture of, which elements affect the bull sharks and their living conditions such as water quality, salinity levels, turbidity, and currents. Thus, this use of individual-based modelling paves the way for new possibilities of researching marine mammals in the future. The research project at Griffith University in Australia is a recent example of how MIKE by DHI supports universities by providing software to PHD and MSc students on very favourable conditions. For more information about individual-based modelling, please contact Michael Potthoff. For more information about the specific research on bull sharks, please contact Jonas Brandi Mortensen.
• Flood modelling enlighten community in Iowa, United States: In 2008, the state of Iowa in the United States experienced severe flooding, where many property owners and entire communities suffered. Since then, Iowa Flood Center (IFC) has used MIKE FLOOD modelling of the severe 2008 floods for community outreach and education. "The Iowa Flood Center (IFC), a state-funded center comprised of IIHR–Hydroscience & Engineering researchers, has been using MIKE FLOOD to simulate flood discharges in several Iowa communities. The simulations have been used to numerically reconstruct the severe 2008 Iowa floods and to develop libraries of static inundation maps relating river stage and discharge to flood extents and depths in each community. The intent is to provide communities and individuals an impression of how river stages and discharges forecasted at discrete points may affect their properties." Nathan C Young, Associate Director, Iowa Flood Center. Read more here. The maps are available on the IFC website as part of the Iowa Flood Information System (IFIS).
• Focused mitigation of hazardous urban discharges: Comprehensive monitoring and modelling of discharges of hazardous substances in the Copenhagen Harbour district revealed the most important point sources of selected substances and thereby allows for a sensible and target-oriented prioritisation of future mitigation measures. The present study determined whether or not specific point sources (e.g. wastewater treatment plants, industries or combined sewer overflow) release significant emissions of hazardous substances as listed in the Baltic Sea Action Plan. It was carried out within the framework of the EU-funded COHIBA-project (Control of Hazardous Substances in the Baltic Sea Region) as a combination of wastewater measurements, load estimations and modelling of the discharges (hydrodynamic marine fate modelling with MIKE 3 and ECOlab). Read more.

Hydrodynamic fate modelling of Bisphenol A in Copenhagen Harbour. The animation shows the modelled discharge, spreading and fate of Bisphenol A after heavy rain, which results in combined sewer overflows. Moreover, industrial discharges are modelled. The model takes into account substance specific fate data (biodegradation, photolysis and hydrolysis) as well as adsorption to suspended solids.

The newsletter can be viewed online here.

To subscribe to the newsletter(s), please visit http://www.graphicmail.com/rwcode/subscribe.aspx?SiteID=3526&Mode=subscribe

Climate Change – Adapting to the Future

Climate change will mainly hit us first through water. In order for societies to prepare for this, the global challenge is to reduce the vulnerability of natural and human systems. There is a rapidly increasing need to create adaptation actions in order to manage the effects of extreme water rainfalls, heavy storms, droughts, etc.

Together with clients and organisations worldwide DHI has for decades been developing solutions for climate change adaptation. We have now compiled our comprehensive knowledge and experiences in three Climate Change Adaptation Guidelines. They give a state-of-the-art overview and also describe in detail the methodologies to be used to achieve sustainable climate change adaptation within the areas of Water Resources, Urban and Marine.



The guideline for the urban area describes for example how flooding from the sea and from drainage systems can be countered in cities. Tools and methodologies are described and evaluated and so is the planning of flood emergency preparedness.

The marine area guideline describes the climate change impacts on water levels, waves and temperature. You get methodologies for preparing marine infrastructure projects and for developing sustainable solutions for harbours and coastal cities.

It is vital for the future survival of many societies e.g. in Africa to achieve sustainable climate change adaptation within water resources. But how can one evaluate the impact from various CO2 emission scenarios and transform them into impact on precipitation? This is just one of the difficult procedures described in this guideline.

Climate change guidelines for your use

The three guidelines are all available for public download. Please feel free to share them with your colleagues and friends. The guidelines can be downloaded here: -

• Marine Climate Change Guidelines
• Water Resources Climate Change Guidelines
• Urban Climate Change Guidelines

The guidance is also available on our Scribd channel here.

Through this initiative, it is our wish to increase DHI’s contribution to a sustainable adaptation to climate change. For further information please contact Jacob Høst-Madsen, Consultancy Director, DHI.

Other resources

• Climate Change website

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We are looking forward to welcoming you to our Spring 2012 User Group Meeting on the 20th of March 2012, and Seminar Day on 21st of March 2012, at the Lion Quays Waterside Resort, Oswestry, UK.

The User Group Meeting will include a mixture of presentations of forthcoming 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.

The Hotel is offering a special B&B rate of £88.50 per person, per night, including Breakfast & Dinner.

Online booking is now available via www.mikebydhi.com/Events/UKUGM2012, so hurry over and make your booking now!


If you would like more information about the content of the event please contact: -

• Simon Matthews on 01694 722795 or sm@dhigroup.com
• Steve Flood on 01752 691723 or sjf@dhigroup.com

.

MIKE by DHI 2011 Service Pack 7

Service Pack 7 for Release 2011 is now available. Simply download and run SP7 from here or, alternatively, via the DHI Software Updater. Please refer to the release notes for information on the corrections made in Service Packs 1-7. If you have questions, please do not hesitate to contact the DHI UK support centre at mikebydhi.uk@dhigroup.com

To download Release 2011 Service Pack 7 please click below: -

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The latest MIKE by DHI NetWork newsletter has been published, and selected articles are presented below: -

Product News

• High Performance Computing: In the continuous efforts to enhance the value of the MIKE by DHI software, allowing our users to become more efficient, a High Performance Computing Center will assist in boosting the performance. DHI and the new High Performance Computing Center, IT4Innovations, have signed a collaboration agreement. The agreement covers the joint development of new features for the MIKE product family - aiming at making the power of the latest HPC technology available to MIKE software users. Read more here.
• MIKE FLOOD de facto standard in Italy: Implementation of the EU Floods Directive call for enhanced use of deterministic models for risk assessment and management of floods. In Italy MIKE FLOOD is already a standard in many Italian regions, and has officially been adopted by many River Basin Authorities. Some of these authorities have organised training courses in MIKE FLOOD with participants from other sister organisations. MIKE FLOOD is now the most frequently used 2D numerical model in Italy. Read more here.

Application Examples

• Tsunami Hazard Assessment and Emergency Response Planning (MIKE 21): Port of Long Beach, CA and Port of Los Angeles, CA use Advanced Wave Modelling for Tsunami Hazard Assessment and Emergency Response Planning. Interest in assessment of the potential for tsunamis along the southern California coast and the associated impacts to the Ports of Los Angeles and Long Beach was renewed in light of the devastation caused by the recent Indian Ocean earthquake and tsunami of December 26, 2004. Historically, concern for tsunamis along the California coast has been limited to distant sources such as Alaska, Chile, or others. However, a few recent studies have been suggesting potential tsunami sources within the southern California Bight which could have a greater impact to the Ports due to the short travel distance and higher amplitudes than expected from the remote sources. Moffatt & Nichol conducted an investigation of the potential tsunami hazard for the Ports of Long Beach and Los Angeles. A detailed tsunami propagation and inundation numerical model was prepared using DHI's MIKE 21 Boussinesq Wave Model to evaluate several potential sources of a tsunami, including potential subaquatic landslides, a thrust fault, and several strike slip faults capable of producing seafloor uplift. Click here to read the full article. An animation can be seen below.

• Addressing Stormwater Drainage Problem (MIKE URBAN): City of Newport Is Addressing Stormwater Drainage Problems using 2D Urban Flood Modelling The City of Newport News has been working in cooperation with the Hampton Roads Sanitation District (HRSD) to develop and calibrate a hydraulic model of the City's wastewater collection system using DHI's MIKE URBAN software. The City's model is being used in conjunction with a regional hydraulic model being prepared by HRSD to evaluate and optimize a wet weather control plan. Building on the success of this program, the City has decided to leverage their investment in MIKE URBAN by also using it for planning and design of the stormwater drainage and collection system. Click here to read the full article.
• Evaluation of Environmental impacts from cooling water system (MIKE 3): Click here to read the full article.
• Wastewater Treatments Plant applications (WEST): Want to read more? Click here.
• Optimizing Wastewater Facility Plan (MIKE URBAN): Click here to read the full article.

The newsletter can be viewed online here.

Other News

• Put your mind at ease, DHI makes sure you have a clean and relaxing swim! Three of our Danish experts, Anders Erichsen, Hanne Kaas and Claus Jørgensen, highlight dynamic modelling of bathing water quality for early contamination warning in the December newsletter of the WHO Collaborating Centre for Health Promoting, University of Bonn. Read their article here.
• Getting the most out of hydropower potential in the Alps! DHI has joined the Enermet consortium and will provide accurate forecasts of the hydropower potential in selected countries of the Alps, thereby adding key information to the existing weather and energy forecasts. The system is based on a methodology that has previously been developed by DHI for the Scandinavian countries. Read more here.

Additional Case Studies

• Sediment spill during offshore pipe laying (DK): Click here to read the full article.
• Optimise water release and increase water quality (AU): Click here to read the full article.

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Wishing you all a Merry Christmas and a Happy New Year


We are looking forward to welcoming you to our Spring 2012 User Group Meeting on the 20th of March 2012, and Seminar Day on 21st of March 2012.

If you would like to present a paper at the User Group Meeting, the agenda is almost finalised but there are still a few slots available. Please contact Steve Flood on 01752 691723 or sjf@dhigroup.com for more details.

For the Seminar Day, we would welcome suggestions for training content. For inspiration please see our latest DHI Training Course catalogue here http://courses.dhigroup.com/catalogue2011/ and the MIKE by DHI Software catalogue here http://www.mike-by-dhi.com/

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


Together with you, we contribute to solving the world's challenges in water environments


We at DHI believe that knowledge of water is necessary to support peaceful and sustainable development of societies.

Besides sharing our knowledge with our clients and partners, we specifically support women in developing countries in advancing their career opportunities in the management of water resources.

Read about the Women's Water Fund, and meet future water leaders from Asia and Africa.

Season's Greetings and Best Wishes for 2012

NB: The main photograph above shows Burrator Reservoir partly frozen with a reflection of Down Tor.

For (even!) more information about Burrator Reservoir please visit http://www.devonheritage.org/Places/Sheepstor/BurratorReservoir.htm (includes photographs taken during the construction of the dam), http://www.plymouthdata.info/BurratorReservoir.htm and http://www.swlakestrust.org.uk/conservation/projects/burrator-historic-and-natural-environment

Photograph Copyright © 2010 Graham Nathan. For use on this blog, the photograph has been restricted to a maximum resolution of 600 x 400 pixels. For full usage details please visit Media Stock (Front to Back Media Ltd) at http://www.mediastock.co.uk/digital-stock-photos.aspx and http://www.mediastock.co.uk/agreements/terms-of-sale-and-use.aspx

The 2012 MIKE by DHI UK User Group Meeting will be held on the 20th March 2012 at the Lion Quays Waterside Resort, Oswestry.

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

On the following day, 21st March 2012, 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.

The programme is already filling up but if you would like to present a paper please contact us without delay. The draft agenda will be published in the January 2012 Newsletter.

For more information please contact: -

• Simon Matthews on 01694 722795 or sm@dhigroup.com
• Steve Flood on 01752 691723 or sjf@dhigroup.com

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The influence of land cover roughness on the results of high resolution tsunami inundation modelling

At the MIKE by DHI User Group Meeting held in Hamburg, Germany over the 24th - 25th May 2011, Dr. Andreas Kortenhaus from the Leichtweiß Institute for Hydraulic Engineering and Water Resources (TU Braunschweig), Dept. of Hydromechanics and Coastal Engineering, kindly delivered a presentation based upon research into the influence of land cover roughness on the results of high resolution tsunami inundation modelling.

This study has now been published and is available via the following link: -

• http://www.nat-hazards-earth-syst-sci.net/11/2521/2011/nhess-11-2521-2011.html

Source dhi-wasy.blogspot.com (7th October 2011).

The latest MIKE by DHI NetWork newsletter has been published, and contains the following articles: -

Main Article

• 'Modelling the world of waste waters' with WEST®

Product News

• MIKE by DHI 2011 Service Pack 6

Hints & Tips

• MIKE 21/3 FM: Morphological hotstart
• MIKE 21/3 Oil Spill Module - Extended output

Application Examples

• Improving bypass and increasing navigation depth
• Improving system optimization for wastewater utility
• Improving preventive flood protection
• What the users say

Events & Courses

• Feed-back from UGMs, Conferences and Seminars in 2011
• Upcoming Events
• Training
• Feedback from training courses in 2011
• Upcoming MIKE by DHI Training Courses

The newsletter can be viewed online here, or downloaded by clicking here.

Update - Revamped Publications Section & DHI Scribd channel

Please visit our revamped Publications section here. We’ve enriched the content with lots of useful material such as case stories and solution flyers – which are now accessible through our new Scribd Channel.

Click here

Follow us on our new DHI Scribd channel, to easily access and share our publications. Scribd, the world's largest social reading and publishing site, ensures widespread access to our documents and offers easy sharing functionalities.

Other News

• High commendation for DHI's SmartRelease Project in Gold Coast, Australia
• A new coastal highway for La Réunion to ensure safety for travellers and trade
• News about Environment and Toxicology (October 2011)

To subscribe to the newsletter(s), please visit http://www.graphicmail.com/rwcode/subscribe.aspx?SiteID=3526&Mode=subscribe

Comprehensive Overview of MIKE SHE


Comprehensive overview of MIKE SHE by Douglas Graham (Oct 2011).

MIKE SHE Questions & Answers


MIKE SHE questions and answers; an interview with Douglas Graham (Oct 2011).

For more videos / animations please visit the DHI Group, MIKE by DHI and FEFLOW YouTube channels: -

• http://www.youtube.com/user/DHIGroup
• http://www.youtube.com/user/MIKEbyDHI
• http://www.youtube.com/user/FEFLOWbyDHI

Release 2011 Service Pack 6

Service Pack 6 for Release 2011 is now available. Simply download and run SP6 from here or, alternatively, via the DHI Software Updater. Please refer to the release notes for information on the corrections made in Service Packs 1-6. If you have questions, please do not hesitate to contact the DHI UK support centre at mikebydhi.uk@dhigroup.com

To download Release 2011 Service Pack 6 please click below: -

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