The 12th MIKE by DHI UK User Group Meeting at the Lion Quays Conference Centre
Tuesday 8th and Wednesday 9th March 2011

The 12th MIKE by DHI UK User Group Meeting was a great success!

We would like to extend our thanks to the 80 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 – is provided below. Some users have given permission for us to make their presentations available online. We hope to add download links for these papers soon.

Nearly 60 users attended the training sessions on the second day. The presentations featured in the sessions will be made available to all participants upon request.

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

Thank you again.


Feedback

“I enjoyed the meeting last week and I have gained a lot from it, so thank you and everyone else at DHI for all your work.” Julian – Environment Agency, Thames Region

“It was a great introduction to the software, and a fun couple of days too.” Ian – Aquamarine Power

“Thanks. I found it very useful, and it allowed me to catch up with the recent developments. The venue was also great.” Yusuf – KAYA Consulting

“It was fantastic on all aspects. Hopefully see you next year.” Zaman – Royal Haskoning

“Very informative and a great networking opportunity.” Chris – Waterco

“Thanks for putting on a very good event.” Keelan – Enzygo

“My thanks to DHI for another very informative and useful two days. The event was a credit to the professionalism of DHI and the organisation that it passed so quickly and without a hitch.” Ken – Wright Associates


Keynotes

“MIKE by DHI - Visions”… Jørgen Bo Nielsen - DHI

A Keynote Overview of DHI’s Vision for the future.

The future of modelling at the Environment Agency… Helen James – Environment Agency

There are big challenges facing the environment in the UK, and flooding is a major one of these challenges. Understanding risk from flooding and communicating it effectively to enable others to make decisions is the key focus of the UK Flood and Coastal Risk Management Modelling Strategy 2010-2015. Modelling (alongside data and mapping) underpin the way we understand and communicate flood and coastal risk in the UK. The strategy addresses how we should do this in partnership for all sources of flooding, how we understand and communicate uncertainty, how we manage and value our models, and how we ensure skills, resources and technology do not constrain us in achieving our goals. In these challenging financial times we have to do this all as efficiently and effectively as possible and several projects are underway to enable us to do more for less.

Assessing Climate Risk… Adam Leonard-Williams & Richard Gilham – Meteorological Office Hadley Centre

The Met Office Hadley Centre has developed a set of tools to help assess the risk associated with a change in the climate. These range from ensemble of global climate models to assess the uncertainty associated with climate predictions to regional climate models, which thanks to their resolution can account for important local forcing. Through a quick overview of a number of recent projects the talk will show how the climate information was put into context and used to inform local adaptation practices. Examples will includes sea level rise mapping, rainfall extremes and RCM/GCM coupling with hydrological models.

User Presentations / Papers

Catchment Management of Flooding & General Flood Protection Policy using MIKE FLOOD and the DHI HAZARD MAPPING Toolkit… Paul Hardwick & Daniel McLeish - RPS

A review of policy and techniques for optimisation of Flood Models and an application of a new MIKE HAZARD MAPPING Toolkit.


Impact on Riverine Flood Risk due to Morphological Change over the lifetime of a Dwelling… Steve Flood - DHI

A MIKE 21 C Concept Demonstration to review the impact of morphological change on a development.


Modelling and Management Issues in a Geomorphologically Active Environment - Marc Huband – University of Wales, Aberystwyth

Bi-directional Flow and Sedimentation in the Dyfi Estuary Tidal Transition Zone:

The channel and floodplain of the lower River Dyfi regularly experience high rates of deposition and erosion. Over the past 150 years the channel has been actively migrating across the valley floor. At the same time floodwaters have been depositing large volumes of sediment onto the floodplain. Rates of erosion and deposition vary substantially through the reach. However in some places the river migrates at rates of metres per year whilst the rate of sedimentation on the floodplain has often exceeded 5 mm per year.

This short presentation gives an overview of the activities of the River Dyfi in its lower reaches (the River Estuary Transition Zone) based on the initial results of some research being carried out at Aberystwyth University. It attempts to draw out issues that relatively dynamic environments such as the RETZ may present to those trying to model them and those responsible for their long term management.

MIKE 11 Water Quality Modelling… Vera Jones – ATKINS

An update on Atkins’ approach to Water Quality Modelling.

Real-time Surface Water – Groundwater Modelling in the Big Cypress Basin, Florida… Douglas Graham – DHI

Linking MIKE Surface and Groundwater Models in a Catchment-wide scenario.

Water Environmental Modelling Using Mike 21 – To assist engineering design… Lei Yang – ARUP

A review of various multi-disciplinary Models, and how choice can affect outcome.
Including case studies covering; Hydrodynamics, Salinity, Eurtrophication and Suspended Sediments

Tywyn Coastal Process Assessment: Application of detailed numerical modelling tools for design optimisation… Nick Elderfield – Atkins

Victorian coastal defences around the UK have left a legacy of structures that have artificially fixed the coastline in positions that today are unsustainable. With predictions of future climate change and forecasts of increasing budgetary constraints, the challenge for managers of such structures is to ensure the most cost effective and suitable programme of upgrade, replacement and/or repair.
Typically to achieve this it is important to develop a level of understanding of the dominant coastal processes taking place, the existing problems at the defence and then to define a suitable solution.

Utilising a range of DHI tools including LITPACK and morphological modelling in MIKE by DHI it was possible to develop a detailed understanding of the coastal processes around Tywyn. With this information, a range of design optimisations could be assessed with a particular focus on the response of the sand foreshore to the new structures. In particular the removal of the long timber groynes has allowed more natural beach processes to resume on the lower foreshore, with the added benefit of increasing the sandy areas available for amenity.

Scheme construction finished in August 2010 and the initial monitoring results suggest success in achieving a more sustainable coastal process situation, however there is a need for longer term assessment of monitored results to inform the future management decisions to ensure that the scheme continues to be successful in practice.

LITPACK – A new experience on the East Anglia Coast… Victoria Tonks – Mott MacDonald

Sediment transport modelling using LITPACK was undertaken to determine the impacts of a temporary cofferdam structure on the sediment transport along the Bacton frontage in particlar during and after the construction. The modelling provided the Client with an undestanding of how the coastline could alter during and after the construction of the temporary cofferdam. LITPROF was run to consider the effects that removing the revetment at the back of the beach would have on the beach levels and cliffs. The results of the modelling allowed recommendations to be provided to the Client on the short term management of the beach during construction.

Boussinesq Wave Modelling on the Scottish Coast… Suzie Clarke – HYDER

Suzi’s unique views on the efficacy of Boussinesq Wave Modelling!

Application of MIKE Marine Software for Coastal EIA Processes… David Lambkin – ABPmer

ABPmer is a specialist consultancy providing high quality scientific advice for interests relating to the marine environment. Major clients include ports, coastal authorities, nature conservation bodies, government departments, marine industries and other engineering and environmental consultancies.

This talk will briefly outline our experiences in a number of higher-profile studies and other internal product developments over the last two years using MIKE. In this context, we will also offer our view on the requirements for further MIKE software development in the coming year(s) in order to continue effectively supporting marine EIA in the UK.

3D Modelling of Southampton Water… Zeeman Yang – URS Scott Wilson

Using MIKE 3 to Model Advection and Dispersion of pollutants in a tidal estuary

Opportunities and Challenges in Coastal and Estuary Water Quality Modelling… Ann Saunders – Intertek Metoc

Challenges in the field, and importantly how they can be overcome, to ensure that models continue to be used to improve compliance and sustainability.

Metocean Modelling for Marine Renewables... Ross Halliday – Natural Power

A review of the use of MIKE 21 to model Marine renewables and dealing with the problem associated with this process.

Beaufort’s Dyke: Putting more Habitat into Habitat Mapping … Alex Callaway – University of Ulster

Recent advances in survey techniques and sampling methods have enabled large areas of the seabed to be mapped using continuous, large scale data such as Multibeam-Echosounder (MBES) bathymetry and backscatter. These data are then combined with discontinuous point sampling techniques to provide an information about habitats found in the survey area. Marine planners then interpolate between the recorded habitats using information from the MBES to infer the most likely areas where habitats are likely to be found.
This is an effective method for broad scale management but until now the spatial properties of the overlying water column have largely been ignored or unavailable despite this information being fundamental in the study of marine organisms and their habitat preference. This study aims to address this issue by utilising hydrodynamic results from MIKE3FM to inform an ecological niche model and increase the accuracy of marine habitat maps.

Carrog-Corwen Flood Consequences Assessment … Tim Dawe- JMP & Neil Evans – LRT + Steve Flood DHI.

An empirical review of the Flood Consequences of construction project which involves Flood Plain Compensation. It includes an Environmental Statement and an overview MIKE FLOOD model of the likely post-completion flood plain run-off regime.


Ground Source Energy in London… Mike Streetly – ESI International

Groundwater models to help manage Ground Source Energy schemes in London:
ESI has been commissioned by the Environment Agency, Thames Region to develop a groundwater model that can be used to assess the individual and cumulative impacts of Ground Source Energy schemes in London. The work will involve further development of the FEFLOW models that ESI (with Parsons Brinkerhoff) developed for London Underground as part of the Cooling the Tube programme to take into account information held by the Environment Agency on new and proposed Ground Source Energy schemes throughout central London. The project will also build on ESI’s recent work to develop and document a conceptual model of the hydrogeology of the London Basin for the Environment Agency.

Mini-presentations

Michael Limbrey – MWT

Wetlands Ecology, SSSI status and the Habitats Directive -

An update on Michael’s 2007 UGM-9 presentation - Restoration of the derelict Montgomery Canal started nearly 40 years ago. Today half the canal is open to navigation again. In the course of restoration there have been issues of water supply, water quality and the effect of boating use on the special ecology of the canal.

SEPA – Deepak Kharat

Hazard Mapping and LIDAR Collection - Experiences from North of the Border

Siddhi Joshi - Coupled hydrodynamic-sediment transport modelling and habitat modelling in Galway Bay, West of Ireland - S. Joshi 1 G. Duffy 1 , C. Brown 2 and A. Grehan 1

1 Earth and Ocean Science, National University of Ireland, Galway.
2 Ryan Institute for Environmental, Marine and Energy Research, National University of Ireland, Galway.

This study uses DHI’s MIKE suite of tools to model the physical environment of Galway Bay and increase understanding of the sediment dynamics. It is hypothesized that wave-driven currents under storm conditions are an important driver for sediment transport.

Coralline algae (maërl) habitats in Galway Bay are of great conservation significance with two species, Lithothamnium coralloides and Phymatholithon calcareum, found in the EC Habitats Directive. Few studies have looked at this from a sediment transport perspective.
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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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