LOAD Calculator - a new MIKE 11 link

The LOAD Calculator was released in 2005 as an add-on tool for the MIKE BASIN WQ model. In the 2007 release the LOAD Calculator is now also available as an extension to MIKE 11 GIS. As in the MIKE BASIN WQ model the LOAD Calculator can be applied to generate pollution source boundaries for any MIKE 11 ECO Lab model. It only requires that a rainfall runoff model (RR) is included (fully coupled) in the MIKE 11 HD setup.

The tool is used for calculating pollution loads from both point and non-point sources. The required input data comprise shape files representing livestock and fertilizer statistics, population distribution, point sources and/or land use distribution. The user must specify the expected annual or daily loads per capita, head or hectare, reduction factors (or retention coefficients), and a few other parameters. The output aggregates all pollutant sources at sub-catchment level (RR catchments) and adds new entries into the MIKE 11 boundary editor (*.bnd11 – file) distinguishing between contributions from non-point and point sources, non-point sources being correlated to rainfall runoff while point sources are assumed independent of runoff.

Additional outputs include total annual loads split into a number fractions according the origin of the sources, and the statistics are added directly to the catchment feature class. This way the calibrated loads can be easily displayed using the build-in plot functionalities in ArcMap providing an overview of the relative importance of the different types of sources, e.g. point sources from industries and domestic sewers, non-sewered populations and agricultural non-point sources.

The LOAD Calculator is especially useful when working with large MIKE 11 model setups including many RR cathcments and including many pollution sources. In tool strongly facilitates the procedures for simulating different pollution load scenarios in MIKE 11 ECO Lab, in particular scenarios reflecting changes in both the geographical distribution and magnitude of both non-point and point sources.

For further information please contact Flemming Thorbjørn Hansen at fth@dhigroup.com or Børge Storm at brs@dhigroup.com

MATLAB DFS interface

The new MATLAB DFS interface version 2007 is ready for download.

The new MATLAB DFS interface library is a major extension compared to the previous version (2004). The new version supports e.g. read and write of flexible mesh data (dfsu 2D and 3D).

You can download the software and an extensive user guide here

For more information please contact Dr Jesper Grooss at jgr@dhigroup.com

View your 2D data in ArcMap

View your 2D data in ArcMap using the new free dfs2 plug-in for ArcGIS

The new plug-in is designed for viewing dfs2 files (eg. output from MIKE 11, MIKE 21or MIKE Flood) is designed for viewing dfs2 files with multiple time steps and items within ArcGis. More on features here…

The new dfs2 plug-in has already been applied in a number of projects. A few examples are described below.

Sample case from Thailand

The plug-in was used in a recent flood forecasting project for Chi and Mun rivers basins in northeast Thailand. In a fully automated setting, the project has provided forecast personnel with the capability to manage real-time data, carry out forecast simulations, examine computed dfs2 flood inundation maps in ArcGIS environment and disseminate early warnings to the vulnerable populace.

The flood inundation maps produced by the system are based on the following data and technologies:

1. Real-time observations of point rainfall in the river basins and point water level at selected river locations
2. A hydrological and hydraulic forecasting model based on MIKE 11, which includes data assimilation technology for updating the model state on the basis of observed data
3. An ArcGIS based system, MIKE FLOOD WATCH, that integrates 1 and 2, above

More information on the technologies applied can be found at:

• http://www.dhigroup.com/MIKE11
• http://www.dhigroup.com/MIKEFLOODWATCH

Predicted flood inundation along the Chi River.

Sample case from Spain

The new ArcGIS tool was used in the investigation of a potential Dam break in the village of Crevillente, Spain. The tool was used to present the inundation maps simulated by MIKE21, in the ArcGIS environment.

The study was carried out in corporation with the University of Alicante, with the objective to determined the flood risk for a particular plot of land in the event of a breach of the Crevillente dam,  and additionally to determine, if the area was in a flood risk zone, what types of preventives actions should be put in place in order to avoid loss of life.

The figure shows two examples of flood maps imported into ArcGIS using the dfs2 plug-in. On the left the present situation, and on the right a flood protection wall has been included.

More information can be found on
http://www.dhigroup.com/?sc_itemid={B850949A-68A1-4486-A3DC-4E6CDEAFF3B6}

System requirements

The plug-in requires ArcGIS 9.1 is installed on the PC. The plug-in has been developed for Microsoft Windows 2000 and Windows XP Professional Edition.

Where to download and how to install?

You can either download the installation program from here or directly install the plug-in from the DHI Software 2007 DVD. Please follow the installation instructions carefully and read the release note.

For more information please contact Henrik Kofoed-Hansen at hkh@dhigroup.com

Editing/viewing mesh/dfsu data files

In Release 2007 the default editor/viewer for mesh/dfsu data files is set to the new Data Manager when opening a file in Windows Explorer or in the new Project Explorer. In the File Associations dialog you can change this setting easily. Open MIKE Zero, select options and User settings and set file association for dfsu and mesh files to Data Viewer (see below screen dumps).

Please also note when you double-click the file the default editor will be used, but you may open file with another editor by right-clicking the file in the Project Explorer and select `Open With' instead of `Open'. This will present you with a list of available editors and an option to set the selected editor as the new default editor for the specific file type.

For further information please contact Mr. Henrik K. Hansen at hkh@dhigroup.com

Editing and animating objects in Plot Composer

In release 2007 the Plot Composer consists of two tab controls:

1. Edit, where you can insert new plot objects and edit the plot properties for the individual plots
2. Animate, where you can animate multiple plots objects simultaneously.

In Edit you have the possibility to access the edit functionalities for the individual plot objects by selecting the plot object and right-clicking the mouse.

In Animate the plot object(s) cannot be edited. The time step to be displayed is defined by the Animation toolbar, from which you have the possibility to animate and step forwards and backwards in time and furthermore control the time steps to be stored in a video.

Note that for the Time Series plot object, a vertical line is displayed on the x-axis to indicate the active time step in the animation.

For further information please contact Dr. Ann Skov at ans@dhigroup.com

Upcoming Events

DHI User Group Meeting and Training, 8-9 May 2007, Hoersholm, Denmark

The events will be conducted in Danish and will offer an excellent opportunity for Scandinavian speaking clients and potential SW users to be informed about Release 2007 and the new features of our software.

For more information please contact Secretariat

Recent Events

“Hydro Informatics Days” at Kasetsart University, Thailand, 1-2 March 2007

In recent years, new and advanced technology on water modelling tools has been developed continuously, which has resulted in a number of innovative research activities in the fields of water, environment and health. Therefore, the Department of Water Resources Engineering, Faculty of Engineering, Kasetsart University, in cooperation with DHI organised 2-days event “Hydro Informatics Days” during 1-2 March 2007.

On day 1 the seminar provided software news, overview of research development and latest technology on water modelling tools as well as gave users and software developers the unique opportunity to exchange information and experiences in relation to the results and progress of the application of the new technologies and tools in the field of water resources management, urban water, coastal and marine management.

250 participants from the all Thai water sector including representatives from governmental agencies, regional water bodies, research institutions and universities, professional bodies and engineering companies attended the seminar that was held in the Witthayaborikarn Building, Kasetsart University, Bangkaen Campus.

Assist. Prof. Dr. Kobkiat Pongput, Ms. Patsorn Chaweewong from Kasetsart University and Mr. Maitree Foitong from Electricity Generating Authority of Thailand (EGAT) presented applications in Thailand, while DHI staff presented the latest developments and demonstrated the software programmes.

On 2 March 2007, 35 participants registered for a field trip to Petchburi Water Distribution and Maintenance Project, Office of Regional Irrigation 14 in Petchburi Province (South of Bangkok). This project utilizes MIKE 11 for flood forecasting and warning. In the field trip we visited the project control room which installed MIKE11 flood forecast for Petchburi river basin. The setup model has been fed with update hydrodynamic data from 15 site monitoring stations. In the afteroon we visited one remote station of this project in Petchburi city.

In general, the participants agreed that the seminar had been very interesting and relevant for their work. For example, Thamasat University is interested in buying MIKE 11 and MIKE URBAN Lab Kit and collaboration with DHI staff in the courses at the university.

For further information please contact Varaporn Buranautama at may@dhigroup.com