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MIKE 2021

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MIKE 21 Mooring Analysis

  • Now possible to use Trelleborg’s advanced mooring system, DynaMoor

MIKE 21 Spectral Waves

  • Now possible to specify a simple cap value on the correction for friction velocity

  • Now possible to apply cyclic boundary conditions in MIKE 21 SW


  • New sediment disposal feature in the MIKE 3 Mud Transport Module: A nearfield/farfield coupled approach is used for modelling sediment disposal from a split barge. The nearfield solution is based on an integrated approach independent from the MIKE computational mesh.

  • New time-centering for the calculation of vertical velocity in the sigma coordinate system solving 3D Shallow water equations

MIKE 21/3

  • New algorithm for gradient calculation for higher order scheme in space: HD calculations for 3D, and AD calculations for 2D and 3D calculations

  • New gradient limiter for higher order scheme in space: AD calculations for both 2D and 3D

  • New normalised approach for absorption of short-wave radiation in the water column and possibility to specify the light extinction coefficient for short wave radiation as a 2D map

  • Possibility of specifying dedicated output of detailed information for culverts, weirs and gates

  • New option for selecting additional inundation output of velocity components at maximum current speed, and time at first depth above threshold

  • Improved level and flux boundary in connection with dry areas for the hydrodynamic module

  • New option to hotstart Oil Spill (OS), Particle Tracking (PT) and Agent-based simulations (ABM Lab), in MIKE 21 and MIKE 3 (FM only) using a particle type output file as an input for hotstart

  • Significantly reduced initialisation time of large MIKE ECO Lab simulations in MIKE 21 Flow Model FM and MIKE 3 Flow Model FM .



  • Users can now specify one or more DEMs to create 2D flood maps of the river channel. Water depths are not interpolated from cross sections anymore but use underlying topography.

  • New tool available to generate DEM files from a combination of multiple source tiles

  • New cross-section resistance assignment tool allows users to define the resistance along each cross section using input dfs2 files storing Manning’s values or shapefiles storing polygons with the land cover type

  • MIKE HYDRO River engine (MIKE 1D) is now usable in Deltares-FEWS forecasting platform. Input timeseries can be edited in real-time and output ones used in the user interface. Scripts, xml files and supporting documents can be found on DHI GitHub repository

Hydro-mechanical coupling
New Plugin to accurately calculate ground subsidence

  • Based on a modified Hooke's law to relate effective stress σ' to hydraulic conductivity 𝐊, porosity θ and storage coefficient Ss

  • Supports both porous media and fractures

Also supports surface loading, which can be especially important in mining

MODFLOW extractor
MODFLOW users can now import their models into FEFLOW

  • Simple plug-in to extract data from an existing MODFLOW 6 model
  • Focus is on importing mesh geometry and nodal/element properties, as well as visualisation of results

Does not extract boundary conditions, but these can be added manually to fully recreate a MODFLOW model

API extensions
Many new and improved features to FEFLOW’s Python Programming and IFM interfaces, including improved documentation (Details here)

  • More options to work with selections
  • More complete access to Model Parameters using vector functions
  • Additional features to run the simulator through Python

  • Support for coordinate system strings (backend only)
  • Pathlines and Streamlines
  • A complete integrated and online help for the Python interface

Chemical groups
User interface support for complex chemical groups via new Import and Export functions

  • Species IDs and names
  • Reaction types, including all coefficients for predefined reactions (Monod, etc.)

  • Entire syntaxes (FE Mathed) used for the user-defined reactions
  • Import/export of the entire chemical system in ASCII format, e.g. XML or other ‘modern’ format

IFM for chemical reactions
New IFM functions for managing chemical reactions

  • IfmSetSpeciesKineticsType – To set the kinetic reaction type (degradation, Arrhenius, or Monod) and the corresponding coefficients

  • IfmSetSpeciesUserSpecificKineticsType
    - To set the full kinetic expression for a user-defined reaction
  • IfmGetSpeciesUserSpecificKineticsType To query kinetic expression in a user-defined reaction

Editable overview tables

  • These tables give an overview of all the distributed parameters below the table

  • Users can now quickly edit the basic parameters for much of their models without using the data tree

  • The table at the top of the Data Tree gives an overview of all the distributed input for the entire model



  • MIKE URBAN+ is relaunched MIKE+, the integrated water modelling platform supporting urban, river and flood applications. Learn more.

WaterNet Advisor

  • Support of MIKE+ collection system (MIKE 1D), where you can simulate various scenarios and view results in a web-based interface for decision making using your phone, tablet, PC or in the field


  • Preliminary treatment units (screening, grit removal) are now included in the block library
  • Increased settling area with the use of lamellae is now described in a dedicated settling unit model

  • Reactive settling can now be modelled in multiple (ideal and multi-layer) clarifier models
  • New biological treatment units are part of the block library and include the upflow anaerobic sludge blanket (UASB), aerobic digestion and biofiltration (zero-dimensional model)

  • In biofilm-based process units (MBBR, IFAS), users can define separate kinetics for bulk liquid and biofilms
  • Users can model the fate of sulphur, including gaseous H2S emissions, during anaerobic digestion

  • A new comprehensive process model for COD, nitrogen, phosphorus and sulphur is now available. The model includes 2-step nitrification, 4-step denitrification, Anammox, P-uptake and release as well as sulphate reduction to H2S
  • Models describing heat exchange during sludge pre-heating, heat losses in anaerobic digesters, thermal and electrical energy recovery from biogas are now available, allowing users to accurately determine energy and heat balances
  • The nutrient recovery modelling (NRM) library now includes a stripper unit for ammonia recovery.
  • The anaerobic digestion model ADM1 can now be interfaced with all process models used in the water line.
  • Users can duplicate plots in graphical dashboards
  • New pre-defined samples are available and include the Benchmark Simulation Model no. 2 (BSM2), plant layouts with MBBR and oxidation ditch, and a test case for the use of the Python extension
  • Continuity checks have been implemented for the default activated sludge models and can be used as templates for new or extended process models
  • The user interface in German, Japanese, Polish and Russian has been updated

Integrated platforms


  • MIKE URBAN+ is relaunched MIKE+, the integrated water modelling platform supporting urban, river and flood applications
  • Supports ArcGIS Pro 2.5 (2.2 and higher)
  • Upgrade to PostgreSQL 11.1 and PostGIS 2.5.1

  • Background maps can be obtained from WMS servers. This option supports only WMS servers with projected map projections (not geographical projections). The map projection from the WMS server must be the same as the projection used in MIKE+.

  • The map projection used in MIKE+ can be modified for a model setup. While selecting a new map projection, it is possible to convert coordinates of features in the model setup to the new coordinate system. Note, 2D files (including e.g. existing 2D overland domain file) cannot be re-projected.

  • GeoTIFF files and Arc/Info binary grids are now supported: layers can be displayed on the map and used in the ‘Interpolation and assignment’ tool
  • A new ‘cross section plot’ tool is available in the Results ribbon, and displays animated water levels in cross sections from river results, 2D overland results, or both
  • When importing data from a geodatabase, it is now also possible to import data from plain tables, i.e. tables without geometry on the map

Water Distribution

  • Water Hammer analyses can now be performed. The Water Hammer simulation engine has been improved compared to its previous version in MIKE URBAN classic, with:

  • Improvements to Air valves
  • Improvements to Check valves (user-defined cracking pressure and velocity, opening and closing times)
  • Support of Hazen Williams and Manning friction

  • Ability to cancel the simulation while it is running
  • Improved error reporting when reading the input file
  • Orifice outflow (pressure dependent turnout)

  • Batch runs are now also available for EPANET
  • Demands can now be aggregated for selected items
  • Supports import of geometries specified in separate tables to the link, catchment, etc.
  • Import topology improved with option for splitting pipes at T-sections
  • Flow modulated pressure reducing valve now supported

Collection Systems

  • SWMM5 now supported for modelling collection systems and can be chosen as a new model type when creating a new model setup

  • SWMM5.1.013 version supported

  • Features excluded in this first release of SWMM:
  • SWMM Water Quality
  • Import of SWMM scenarios from MIKE URBAN classic setups
  • Catchment Processing tool

  • MIKE+ SWMM documentation
  • Model transfer tools ‘SWMM to MIKE 1D’ and ‘MIKE1D to SWMM’
  • Network simplification of SWMM models
  • Creation of Transects from DEM
  • ‘Interpolation and assignment’ tool
  • The MIKE1D Network simplification tool has been significantly improved, including new options to:
  • Trim networks
  • Merge pipes
  • Merge catchments
  • Reconnect the disconnected features (boundary conditions, catchments, etc.)
  • Convert the pipe network to a set of basins and orifices for surrogate applications
  • Custom units (US units) can now be applied with the RTC module

River Networks

  • The Transport (AD) and Water Quality (MIKE ECO Lab) modules can now be used with River Networks models
  • River cross sections can be digitised and edited on the map

  • A new ‘Structure Link’ type of river has been added that allows weir and culvert structures to be added
  • The scenario manager now allows users to define scenarios with changes on the river network

  • Documentation: New MIKE+ River Network Manual
  • A new ‘Create and update cross sections’ tool is available for use with river networks, allowing these functions:

  • Create multiple new cross sections, from survey points and/or DEM
  • Update existing cross sections with a new DEM
  • Assign the distributed roughness values in the cross sections, from a GIS layer
  • Flooding

    • MIKE+ (Collection Systems and Rivers) can be coupled to an existing MIKE 21 FM setup file
    • River end coupling (‘standard link’) for rivers is now supported

    • Surface roughness and infiltration can now be defined from a polygon layer, e.g., mapping to the land cover

    • Insertion of new 2D dikes from a file has been improved. If the input file is a 3D shape file (containing crest levels in the lines geometry), then all the lines from the file are imported simultaneously as separated dikes, and the crest levels are also imported from the file.

    • The result file type 'Section discharge' now supports polylines shapes, instead of straight lines
    • The result file type '2D flood statistics' has been extended to save new statistic items from flood simulations
    • Land roughness values can be derived from an input land cover shapefile
    • Roughness for each land cover category can be defined as flow-dependent (depth-varying or flux-varying), which considers the impact of depth on the roughness of different materials (e.g. grass, crops, parks, buildings)
    • Road polygon shapefiles can be used directly as input file, removing the need to burn them into the mesh itself
    • Topography in roads or embankment areas can be raised or lowered
    • Non-Newtonian flows (using the Full Bingham Fluid formulation) can now be modelled in the 2D module. This is useful to represent mud, debris, heavy oil
    • Buildings can now be defined from a polygon layer, to apply special treatments in the 2D overland simulation:
    • Buildings are elevated and rain falling on their roofs can now weir onto surrounding ground
    • A building runoff factor can delay rainfall runoff from buildings – for example, dealing very simplistically with complex roof construction or green roofs
    • Rain falling on buildings can be retained in the buildings. It is possible to position a coupling to the collection system network in the building area to convey rainfall to the network



    • The new MIKE FLOOD Adaptor allows you to transform your MIKE FLOOD (or MIKE+) model to a real-time forecasting system

    • Timeseries can be hosted on MIKE CLOUD, allowing users to securely store and share data in the cloud to access anytime, anywhere. This also makes the data usable by the MIKE CLOUD ecosystem of applications and dashboarding tools (e.g. PowerBI).

    • The new FEFLOW Adaptor empowers groundwater experts in managing their models, running scenarios and comparing results using MIKE OPERATIONS

    • Store your MIKE OPERATIONS data in a Microsoft SQL Server Database and make the most out of your existing IT infrastructure

    MIKE Zero & Toolboxes

    • Extended support for horizontal and vertical tiling of windows in MIKE Zero applications

    • Updated and extended list of supported map projections in MIKE Zero

    • New option for importing foreign map projections

    • New free-text search added, including search for optional EPSG numbers



    MIKE 2020 Update 1

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    MIKE 21

    • Now with native support for shapefiles, and extended options for .dfs files and .xyz files

    • It is now possible to specify bed resistance and Infiltration using shapefile polygons. There is no need to generate roughness maps.

    • New depth or flux dependent bed resistance and infiltration rates

    • Full GUI support for AutoMoor mooring systems is now included in the MIKE 21 Mooring Analysis module

    MIKE 3

    • Input of 3D Boundary conditions from a vertical plane series .dfsu file extended to handle the case of sigma/z-level vertical discretisation

    • Output of vertical plane information in the FM engine. Both structured output (dfs2 file) and unstructured output (.dfsu) can be specified.

    • Up to 10% improvement in performance when using GPU acceleration for hydrodynamic and advection-dispersion modules

    MIKE 21/3

    • A new pure current model for mixed-fraction, multi-layered sediments is now available in the Sand Transport Module for the FM hydrodynamic engines

    • It is now possible to run FM simulations with the Transport Module (Advection-Dispersion) using GPU acceleration

    • Special treatment of important infrastructure, with the possibility to define buildings and roads via shapefile inputs

    • New ways to handle effect of raised / lowered roads (and embankments) though the specification of a ground level offset

    • New ways to handle rain on and flows around and over Buildings:

    • Rain falling on buildings of a given height can now weir onto surrounding ground

    • A new building run-off factor can delay rainfall runoff from buildings – for example, dealing very simplistically with complex roof construction or green roofs

    • Rain falling on buildings can be retained in the buildings and included in the calculations (mass balance). It is possible to position a MIKE URBAN+ link in the building zone to convey all rainfall to a subsurface drainage network.

    • Up to 25% reduction in simulation times in the mass budget and discharge calculation in the GPU version

    • Improved GPU timings information in the log file when running the hydrodynamic or transport module

    • Line series and discharge series in output from FM engines can now be specified as a polyline

  • Now possible to output the bed resistance coefficient from the FM engines
  • Inland

    MIKE HYDRO Basin

    • In the irrigation module, improvements were made to yield calculation, rice soil model, evaporation from paddy fields and soil moisture balance calculations. Field areas also allow crop shift.

    MIKE HYDRO River

    • Improved handling of storage initial conditions. New tools for creating storages and defining volume from DEM.

    • New multi-zone description of bed resistance. This offers a possibility to divide the cross sections in a number of zones with different bed resistance value.
    • New script to model resistance as a function of the various hydraulic parameters during the simulation, for every time step
    • New MIKE ECO Lab template to simulate Heat Balance in rivers
    • Decoupling of Advection-Dispersion and MIKE ECO Lab simulations, using hydrodynamic result files
    • Added support of forcings that are varying in time and space for MIKE ECO Lab simulation (e.g. temperature)
    • Added support of 2D data (dfs2) as input to global boundary conditions (rainfall and evaporation), as well as groundwater leakage



    New CS River module for improved integrated modelling with the following features:

    • Supports native river modelling with MIKE 1D
    • Graphical editing of rivers
    • Cross sections and branches defined as in MIKE HYDRO
    • Support for Culverts and Weirs
    • Specification of bed roughness
    • Cross sections shared with Collections Systems module
    • Ability to connect collection systems and rivers in one geometric network and one MIKE 1D simulation
    • Ability to transport pollutants washed-off the surface, through collection system and the river by advection dispersion
    • Runoff simulation simultaneously with network simulation in Collection Systems and River modules
    • The native river can be coupled to 2D just like in the Collection Systems module supporting lateral coupling
    • New River Network tab with various tools that enable graphical network editing of river networks
    Coupling to MIKE HYDRO:
    • For users having the river described in MIKE HYDRO, this river network can be coupled to 2D in MIKE URBAN+
    • Batch creation of couplings
    • Collection Systems, CS River and MIKE HYDRO river in one map view
    Import tool improved:
    • Supports import of geometries specified in separate tables to the link, catchment, etc.
    • Import topology improved with option for splitting pipes at T-sections
    • Reads existing import configuration files developed for MIKE URBAN Classic. Saves in new format.
    Improvements to longitudinal profile:
    • Automatic load of typical results layers into the profile Water Level, Discharge, Pressure, Head
    • Option to display DEM in the profile
    • Result presentation improvement with export of Flexible Mesh and velocity vectors to shape file
    • Improvement to Scenario Manager with import of demand allocations and patterns
    • Improvement to demand geocoding, map projection and background map appearance
    • New MIKE URBAN+ Flood modelling manual
    • Enhanced support for units. Units can be specified for the individual attribute and stored in the project database
    • New tool in Water Distribution for converting asset point valves to model link valves
    • Updates to Distributed Demand tool for distributing within DMA’s


    MIKE Zero & Toolboxes

    • All MIKE Zero front-end applications (excluding MIKE HYDRO) are now optimised for 4K monitors

    • The Data Extraction FM tool has been extended to include the new type of outputs:
      • Vertical plane series
      • Line series specified as a polyline
      • Discharge series specified as a polyline
      • Structured output from 2D and 3D unstructured data inputs

    • Now possible to visualise the new vertical plane series .dfsu file type in the MZ Data Viewer and MZ Plot Composer

    • The binary particle track file format for oil spill, particle tracking and agent-based modelling, ‘.TRACK’ is now supported as an input file format for all tools in the MIKE Zero OS/PT Toolbox, which requires a particle track file format as input



    MIKE 2020

      Download now!


    MIKE 21

    A new description of the Oil Refinery example has been added for MIKE 21 FMOS. A new example setup for the use of Long Culverts in MIKE 21 FMHD has been added.

    MIKE 21/3 Oil Spill, MIKE 21/3 Particle Tracking, Non-cohesive Sediment Transport and the Generation of Sediment Tables, Extension of Sediment Tables and Sediment Discharge Calculation MIKE 21 Toolbox tools have been decommissioned and are no longer available. Support will be provided until November 2020.

    MIKE 21 Spectral Waves FM

    • An extension of options for the separation of wind sea and swell in MIKE 21 SW has been implemented for better comparison with observations.

    MIKE 21 Mooring Analysis

    • We have integrated Trelleborg’s AutoMoor products and technology within the MIKE 21 Mooring Analysis engine. This new functionality will provide port operators, and their consultants, with fast access to design and specification information for AutoMoor installations.

    MIKE 21 ECO Lab FM

    • Google Earth (KML) output format for particle tracks in Particle Track, ABM Lab and Oil Spill modules.
    • New Flexible Mesh user examples for Oil Spill & Particle Tracking added.
    • Preview release of MIKE ECO Lab 0D engine.

    MIKE 3

    MIKE 3 Classic, including the MIKE 3 Toolbox (Digitising tool) has been fully decommissioned and is no longer available. Support will be provided until November 2020.

    MIKE 3 Flow Model FM Hydrodynamics

    • GPU acceleration for Temperature and Salinity calculations and second order k-e Turbulence calculations has been added.

    MIKE 3 ECO Lab FM

    • Google Earth (KML) output format for particle tracks in Particle Tracking, ABM Lab and Oil Spill modules added.
    • Preview release of MIKE ECO Lab 0D engine.
    • New Flexible Mesh user examples for Oil Spill & Particle Tracking added.

    MIKE 3 Flow Model Mud Transport

    • Calculation of bed shear stress has been improved.



    The table of weighted rainfall time series for Rainfall-Runoff modelling is now resizable, to allow visualizing more data at once in the table.

    MIKE HYDRO Basin

    • Calibration plots are now available for multiple object types, including river nodes, water user nodes, hydropower nodes, reservoir nodes and river reaches.


    • Support for MIKE URBAN+ models in MIKE FLOOD.
    • New lateral coupling to MIKE URBAN+ Natural Channels in MIKE FLOOD.
    • An error has been corrected when simulating a MIKE FLOOD model using the MIKE 1D engine with the AD links set as active. In such cases, the model ran but AD calculations were not included.


    • PYTHON Support up to version 3.7
    • PYTHON Support for tensor descriptions IFM Support for Tensor descriptions

    • Pre-simulation NAN checks
    • Measured timeseries shown in head diagrams
    • 3D view with cut-off

    • Export observations points name
    • Export of velocity components
    • Hide parameters turned off in view components

    • Unique names in view panel for different age species and multi-species
    • Outliers made possible in Fringe mode


    • Azure Cloud deployment support



    MIKE URBAN now supports the latest update to ArcGIS Desktop, version 10.7.1.
    Transfer of MOUSE long-term statistics functionality to MIKE 1D, including:

    • Recovery after a failed job.
    • Generation of an LTS job list using the LTS_JOBLIST_INFLOW_TIMESERIES dhiapp.ini parameter.


    • A new module for 2D overland simulations is now available. This new module simulates the hydrodynamics and water quality in the two horizontal dimensions on the surface. It can simulate the dynamic interaction with the Collection System network, including flooding from a saturated network and drainage to the network.

    • A new module for Sediment Transport simulations is now available, which can be applied for dynamic morphological analysis. This new module is able to simulate transport of bed load and suspended load, for cohesive and non-cohesive sediments, and for multiple sediment fractions.

    • Long Term Statistics (LTS) functionality has been completed and improved. Major improvements have been made to LTS setup, LTS simulations and LTS results.
    • Scenarios and alternatives from MIKE URBAN classic model setups can be imported in MIKE URBAN+ using the automatic import functionality, except for Catchment connections, WD patterns and WD demand allocation and connections which can only be partly imported, and except for RTC and 2D overland.


    Entry-level license with basic functionalities, i.e. limited model library, 'small' (limited in size) process layouts, steady-state and dynamic simulation. New model library written using the Modelica modelling language.

    Conversion models supported:

    • ASM1: standard IWA's ASM1 for C and N removal
    • ASM2dMod: modified IWA's ASM2d for C, N and P removal.
    • ASM2dISS: based on ASM2dMod, with accurate tracking of inorganics (ISS)
    • IUWS1: for integrated modelling (based on ASM2dMod)

    New models (wrt MSL 2017 library):

    • Biofilm: Rauch model
    • Blowers: centrifugal VFD and IGV; positive displacement VFD; control logic for multiple blowers on same pipe
    • Pumps: centrifugal VFD and throttle; control logic for multiple pumps on same and on separate pipes
    • Sand filter: down-flow with automatic backwashing
    • Disinfection: chlorine, UV, PAA
    • Sampler: grab and time-proportional sampler
    • Heat exchanger
    • NRM dosing units: CaOH2, MgCl2, MgOH2, NaOH

    New models:

    • Biofilm: Rauch model
    • Pumps: centrifugal VFD and throttle (fewer options than in Modelica library); control logic for multiple pumps on same and on separate pipes
    • Sand filter: down-flow with automatic backwashing
    • Disinfection: chlorine, UV, PAA
    • Sampler: grab and time-proportional sampler


    MIKE View

    • Correction to error occurring when loading large .prf files
    • Support for partial loading of .res1D files

    Data and Operations


    • Limited support for using Model Predictive Control (MPC) to optimize model parameters.
    • MIKE 21FM adapter for running MIKE 21FM simulations from the MIKE Workbench Scenario manager and MIKE OPERATIONS desktop.

    • Longitudinal profile tool for viewing flow and elevation profiles along longitudinal axes of river reaches
    • Improved functionality for import and export of TS data

    • Support for CPython to enable use of CPython libraries in scripting
    • Integration of workflow manager with MIKE Workbench timeseries and scripts.

    API and Licenses

    DHI License Manager

    • A user can manually “check out” a license without having to install DHI license manager. After a number of days (14), the license will not be usable any longer and the user needs to go online, or request check out again.
    • DHI has the information to see how many force releases of “checked out” license seats a customer has.

    • Tracking of usage activities are stored locally on the computer while the license is “checked out” and these activities are sent to the Internet license database when the user is online again.

    • Users using an Internet license and running model simulations can continue to run simulations for up to 14 days, should the connection to the Internet license servers be interrupted during a simulation run.

    • Handling of irregular termination of Internet licenses has been improved, Internet licenses should no longer be hanging.


    MIKE 2019 Update 1



    MIKE 3 HD FM
    Non-hydrostatic module now available for advanced and fine-scale 3D flow simulations.

    MIKE 21 Mooring Analysis

    • Bollard forces now available as output item
    • Added GUI support for inspecting vertical deckplane heights


    MIKE 21, MIKE 3 and MIKE FLOOD
    Now supporting long culverts structure in your model mesh.


    Extended parameter support

    • Use of user-defined expression for all material properties
    • Extended support facilities new software applications, such as Hydro-mechanical coupling for granular media, adaptation of conductivity values depending on external factor (beside saturation), among others

    Multi-document handling

    • Implementation of multiple documents handling in Python interface

    More Python support

    • Support of Python 3.x and Iron Python


    • Smart definition of observation weights
    • Weights can be set automatically depending of current observation value
    • Weights can be set automatically using FEFLOW confidence interval

    Additional support for map import/export

    • Full implementation of VTU (import / export) using Kitware package

    MIKE HYDRO River

    • New raster formats are supported as background layers. The new formats are GeoTIFF files and ESRI binary grids.
    • Digital Elevation Models were previously loaded as a separate layer, which was always shown on top of the other background layers on the map. The DEM is now selected amongst the raster files loaded as background layers. This allows full control on the order of layers, including the DEM file.

    Read more

    MIKE HYDRO Basin

    • New raster formats are supported as background layers. The new formats are GeoTIFF files and ESRI binary grids.
    • Digital Elevation Models were previously loaded as a separate layer, which was always shown on top of the other background layers on the map. The DEM is now selected amongst the raster files loaded as background layers. This allows full control on the order of layers, including the DEM file.

    Read more


    Python scripting 

    • We have added support for Python scripting in MIKE SHE. This is a major improvement. Many MIKE SHE users today want to either add minor functions that are missing, or want to interact with MIKE SHE during the simulation. Both of these are now possible. There is a new chapter added to Volume 1 of the documentation that describes this new functionality in detail.

    WQ Constant Concentration 

    • We have removed a significant limitation in MIKE SHE's WQ module. Until now, constant concentration sources have reset all species when water passes through the source. With this update, the constant concentration source is now species specific. That is, it only affects the species specified. This is a significant change for those users who are using MIKE ECO Lab for complex multi-species simulations, such as nutrient fate and transport in agriculture.


    Ability to export the coupling lines in xyz format for use in the Mesh Generator.

    MIKE 21 FM

    • New long culvert type able to span across several model elements has been added.
    • A new Free outflow boundary type has been added.


    MIKE URBAN is updated to ArcGIS 10.7 and SWMM5.1.013.

    Launched MIKE URBAN+, the integrated platform for advanced modelling of urban water that will help you model all urban water systems, including water distribution systems, storm water drainage systems, sewage collection in separate and combined systems and urban flooding.

    Read more


    MIKE Animator Plus

    • Added support for new binary particle format. Particle files in the new binary particle format can be used as input in MIKE Animator Plus.
    • Symbols of constant size now refers to actual extension in domain units.

    MIKE Zero

    • New continuous colour interpolation in MIKE Zero presentation and visualisation tools
    • New EUM units to support molar concentrations in MIKE ECO Lab

    MIKE ECO Lab

    • Added built-in functions for calculating pH in seawater/freshwater environments
    • Added new model template for calculating pH in 3D seawater/freshwater systems and its interaction with primary production, nutrients and sediments

    Data and Operations


    • Upgraded MIKE URBAN adaptor to support MIKE URBAN+ and improved input timeseries configuration in Scenario Manager
    • Improved GFS download tools
    • Overall web performance improvement



    MIKE 2019 Release



    MIKE 3 Wave FM
    We launched a new wave modelling application that will help you perform accurate wave calculations without the usual limitations. Read More

    Marine Pre- & Post-processing Tools
    The tidal tools now allow straightforward prediction of 2D tidal currents. New features include global tide current constituents and extended tidal prediction output (level and current).

    MIKE 21/3 Flow Model
    New binary particle file format for instantaneous result viewing and optimised XML particle track outputs. Available for the following MIKE 21/3 FM process modules: Oil Spill, Particle Tracking and ABM Lab.

    MIKE 21 Mooring Analysis
    Multi-body support in mooring analyses, used for 2+ vessels and closed quay walls.
    New mooring components: Vessel-vessel fenders & Vessel-vessel lines.
    Improved fender configuration: Indication of the fender force direction for quick assessment of user settings.

    Updated step-by-step guide, user guide and examples to show new functionalities and interaction with other MIKE modules, such as MIKE 3 Wave FM and MIKE 21 BW.

    User interface support for simulating various floating structures such as: tandem moorings, floating storage and regasification units (FSRU), and closed quay walls.

    Easy interactive editing of mooring component: Drawing of fenders, drawing of lines and selection/editing of mooring components with immediate visual impact. Read more

    MIKE 21 Shoreline Morphology and Sand Transport
    Users can now use bed level sources/sinks to add beach nourishment or channel dredging to the simulation.

    We included a dune erosion model that can be used to calculate the erosion of the dune during storm conditions.

    Capability to combine different types of morphological modelling in the same model. This feature makes it possible to undertake long-term predictions, such as of port sedimentation.

    Added predefined time varying coastal profile in SM model which can be used to specify different coastal profiles in summer and winter, for instance. Read more


    MIKE 21 and MIKE 21C
    New hydrodynamic module for non-Newtonian flow. This will be useful for 2D modelling of mud and slurry.

    MIKE 21 FM
    Now possible to use rectangular grids (*.dfs2) as input for your domain specification in MIKE 21 Flow Model FM.

    Various miscellaneous updates including detailed time series for water quality and import of constant pumping rates.

    MIKE HYDRO River
    Sediment transport capabilities. Now includes all MIKE 11 modules: Rainfall-Runoff, Control, Advection-Dispersion, Water Quality, Data Assimilation and Sand Transport.

    Sand Transport module supports bed and suspended load / cohesive and non-cohesive sediments with improved numerical description compared to MIKE 11 ST.

    Import from MIKE 11 setups supported when possible.

    Various miscellaneous updates including improved visualization of cross sections map span lines and support of hotstart initial conditions for the AD module.

    Improved ‘Flood and Dry’ with significant reduction of the appearance of unrealistic high velocity, resulting in improved simulations.

    Improved functionalities when coupling MIKE 1D (from either MIKE HYDRO, MIKE 11 or MIKE URBAN) with MIKE 21 FM.

    Now using user-defined expressions for material properties (flow, mass, heat and age).

    Supports multi-document operation. Possible to work with multiple FEM documents through the Python interface. This feature extends software functionality for coupled simulations.

    Additional map support in various formats (.vtu, .vtp, .so, .mesh) and more Python support (Python 2.7, Python 3.5-.3.7 and Iron Python).

    Updated processes and numerical solutions, additional auxiliary parameters and improvements to FePEST.


    Upgrade to ArcGIS 10.6.1. Also made improvements to MIKE 1D modelling of rising main and long-term statistics.

    Data and Operations

    The new database usage reporting feature will help users maintain their database size for optimal system performance. It’s now easier to understand how the data is being stored in PostgreSQL and what should be kept or deleted.

    It is now possible to publish any document in MIKE OPERATIONS Web, simplifying the process of sharing information and data with stakeholders.

    Overall performance improvements made in the handling of timeseries, model and GIS data. Both user interfaces (MIKE OPERATIONS Desktop and MIKE Workbench) and automatic tasks (Job Manager) are now faster and more robust.

    The automatic report generation tools allow users to automate the creation of Word reports in real-time. These reports could provide information about the model forecast, input data, system status, and so on.

    API and Licenses

    MIKE for developers
    Users can now incorporate MIKE components (MIKE API) into their own existing software products and distribute these components as part of their software commercially.

    This gives them the ability to create better products that involve numerical calculations in water, co-brand their products with the Powered by MIKE API logo, and increase their software revenue as a result. Read more

    DHI Internet License Portal
    You can now easily manage and optimise the use of your company’s internet licenses for MIKE products. Read more



    MIKE 2017 Service Pack 2

     Download now!


    MIKE 21 Mooring Analysis
    Over 40 additional scalable vessel hulls for highly-accurate mooring analyses of various vessel types and sizes now available for purchase. Read More

    Updated Scientific Documentation for MIKE 21 Mooring Analysis to include higher level of detail.

    MIKE 21
    New and improved default method for determining Z-levels at cell-faces for dike structures in MIKE 21 for both structured and unstructured grids (FM).

    All marine modelling products
    Log files now include date and time of creation as well as the MIKE version used for simulation of a particular model setup.


    New features added to smoothen the workflow:

    - The top layer of the Saturated Zone can now be automatically adjusted to the depth of the initial water table. This should make it much easier to keep the UZ soil profiles and SZ Layer 1 thicknesses consistent.

    - The % saturation has been added to the UZ outputs. This allows for easier analysis of the movement of UZ wetting fronts.

    - The UZ initial conditions have been extended to allow the full saturation-pressure curve, which is very useful in arid and semi-arid conditions.

    - Constant pumping rates are now allowed in the well editor.
    - New Demo exercises have been created and added to the installation.

    MIKE HYDRO Basin
    Experience improved simulation of hydropower operations with the new updates. It is now possible to constrain maximum turbine flow as a function of head difference. Turbine efficiency can be simulated as a function of head, turbine flow, or a function of both head and flow. Users can also specify a minimum flow rate for turbine operation.

    MIKE HYDRO River
    2D Tabulated Structures are now available in the User Interface, as well as the ability to import/export cross sections from ASCII files.

    An option has been added for user-defined plugins in the MIKE HYDRO cross-section editor.

    Added tool for exporting river embankment lines to xyz file.

    Data and Operations


    Web improvements
    Share your dynamic 2D and 3D data with your stakeholders. MIKE OPERATIONS Web can publish dfsu and dfs2 files in a performant and intuitive way. This includes on-the-fly spatial and temporal data analysis, such as calculation of data statistics. This feature is great for Inland, Marine and Urban users.

    It is also now possible to actively interact with the back end system through the execution of Jobs. This flexible and configurable approach will allow you to run scenarios and execute data processing tools, and directly visualise the outputs in your web browser.

    The graphic view, such as visualisation of rainfall, has been improved, the data export functionality extended and other improvements implemented.

    Script Library
    Access the knowledge pool of top MIKE OPERATIONS experts in just one click! The Script Manager is coupled to a library of scripts that will help you leverage the work of the user community. It is now possible to set up and improve systems in record time.

    HEC-RAS Adaptor
    You can now work with your HEC –RAS models within MIKE OPERATIONS. This will allow you to use the wealth of MIKE Workbench tools, create a forecasting system in a record time and even couple several models together.

    Rainfall processing toolbox
    MIKE Workbench now comes with a set of tools to process spatially distributes rainfall and create input time series for lumped hydrological models.

    APIs and License System

    Implementation of internet license redundancy services
    A brand new secondary internet license server is established to increase uptime of the internet license server. This secondary server steps in when primary internet license server goes offline automatically for all users updating to SP2. The servers are also updated to improve the scalability of concurrent connections.

    19 Apr


    MIKE 2017 Release



    New features from WEST:

    Custom dynamically-loadable extension modules
    Enhanced customization is made possible through code modules (compiled .NET assemblies or IronPython scripts) that can be dynamically loaded into WEST, e.g. for DB or SCADA integration, data import/export, and such

    WEST – DIMS.CORE bridge
    DIMS.CORE and WEST can be seamlessly integrated based on COM or OPC DataLink technology, e.g. allowing for Model Predictive Control setups.

    Integrated MS Excel-compatible workbook
    A workbook is included by default in any project, editable inside WEST, and allowing for easily mapping workbook cells to parameters and variables, in both directions.

    Enhanced structured editor for top-level parameters and variables
    Additional ways for handling the complexity of top-level parameter and interface variable couplings, and for specifying custom top-level computations are provided through an enhanced structured editor.

    Complete toolbox of graphical primitives for layout annotation
    Even more meaningful and visually appealing. Layouts can be obtained through a complete set of graphical primitives, which can be used as annotations.

    Customisation and archiving of sophisticated block detail views
    Filtering out parameters and variables of interest is made possible through block detail views that can be customized in a substantial number of ways, stored and reactivated at a later stage.

    Custom layout connection and terminal types
    The default Water Line / Sludge Line / Data connection scheme can be overruled by custom schemes based on different types of terminals, and different allowable connection rules.

    A-stage model
    ASM1 model that allows for simulating the adsorption / bio-oxidation (A/B) process.

    New features from MIKE URBAN:

    ArcGIS 10.5 now supported by MIKE URBAN
    Upgrade of MIKE URBAN to support ArcGIS 10.5

    MIKE 1D now runs in 64 bit when executed from MIKE URBAN
    MIKE 1D engine now runs in 64 bit leading to better utilisation of your hardware, in particularly, when working with large data sets and models.

    Enhanced hydrogen sulfide modelling
    The hydrogen sulphide MIKE ECO Lab template have been enhanced, now also supporting the simulation of sulphide precipitation by dosing with ferrous and ferric based chemicals

    MIKE View LTS support
    MIKE VIEW now reads LTS results from MIKE 1D

    MIKE1D Engine
    A series of improvements on the MIKE1D engine focusing on even better performance and stability.

    Pump Emergency Storage Tool
    Pump Emergency Storage Tool now available (MOUSE engine only)

    Coast and Sea

    New module for mooring analysis: MIKE 21 MA
    DHI launches a new module for dynamic simulation of vessel movements and mooring and fender forces. Seamless integration with results from MIKE 21 HD and MIKE 21 BW.

    Important developments of the Oil Spill model
    More advanced features in our oil spill model, for example: sub-sea blow-out, handling of dissolved oil, mitigation measures, oil gas fractions and more.

    Integrated Near-Field/Far-field modelling
    One sole modelling process integrates Near-Field and Far-Field modelling for sub-sea outlets. No more integration of results from different models.

    New tool for backtracking calculations
    A new reverse flow field facility makes it possible to undertake backtracking calculations for discharged matter and answer the question: where did observed contaminants come from?

    Improvements in Littoral Processes GUI
    A number of improvements makes it easier to handle and control this module; visualisation of coastlines, structures, profiles and profiles series.

    Water resources

    New features and add-on modules in MIKE HYDRO River
    This release of MIKE HYDRO River include a number of new features including; New cross section editor, Bridge structures, Data assimilation module now including Kalman Filtering and Uncertainty prediction and extended flexibility of cross section tools being the most significant. MIKE HYDRO River is becoming a ready to use substitute for our famous MIKE 11 river modelling package.

    New Ponded Drainage feature in MIKE SHE
    New Paved Runoff feature for applications in urban areas to support green infrastructure such as Low Impact Development (LIDs) and Sustainable Urban Drainage (SUDs). The Ponded Drainage feature is a general function to directly drain storm water to internal depressions, model boundaries and/or streams in the model area.

    MIKE HYDRO GUI improvements
    The Graphical User Interface of MIKE HYDRO has been further developed and improved with faster graphical editing capabilities, direct delete of selected features, enhanced flexibility in cross section processing tools a to mention some.

    Improvements to MIKE FLOOD river modelling using the MIKE 1D engine
    The coupling of 2D overland and river simulations using the new generation river simulation engine; ‘MIKE1D’ has been supplemented with outputs of lateral link inflows as well as saving crest levels along lateral links.

    New flooding results output option in MIKE SHE
    MIKE SHE include a new 2D flooding output option for creating a ‘standard’ 2D result file with water depth and fluxes from the overland flow simulation. Outputs can be used within MIKE Zero post-processing editors to create standard flood related outputs (maps of flood extent, depth, hazards including velocity vectors).

    MIKE SHE simulation performance improvements with MIKE 1D
    MIKE HYDRO River using the MIKE 1D simulation engine can be coupled to MIKE SHE for Water movement simulations and substantial performance improvements has been observed – for some examples with simulation time reduced by approx. 75%.

    Groundwater and porous media

    Workflow and performance improvement of 3D meshing operations
    The unstructured meshing functionalities featured by the previous release have been consolidated and optimised with an enriched layer configurator, parallelization of (re-)meshing workflows, improved TetGen meshing and improved parameter interpolation for 3D re-meshing.

    Model calibration and Uncertainty Quantification
    The uncertainty quantification framework has been enriched by the access to the Pareto mode in FePEST, allowing predictive uncertainty analyses to be carried out.

    New model coupling option: FEFLOW – MIKE 21 FM
    A new exciting offering is introduced in this release; a coupling between the 2D overland model MIKE 21 FM (Flexible Mesh) and FEFLOW. This new coupling option benefits from the flexibility and solution efficiency of both the 2-D surface water model and the detailed groundwater model in a new integrated modelling tool.

    Revised handling of Discrete Feature Elements
    A full revision of the handling and the display of Discrete Feature Elements (DFE’s) together with new computational strategies based on the duality of nodes between DFE’s and mesh elements.

    General features and usability
    A number of usability improvements are included including new 2D/3D selection tools, improved drag-and-drop options, charting and recording of property contents, Python scripting menu and improved support for screenshot and movie exports to mention some.


    Tablet and mobile friendly MIKE OPERATONS Web solution – no coding required!
    By a single click, the user can convert the configured desktop frontend MIKE OPERATIONS into a web based solution without any coding. The approach ensures a better information sharing among stakeholders by supporting browser access to relevant information – both on intranet and internet depending on the client needs. The MIKE OPERATIONS web comes with an integrated Internet Information Server (IIS) Express version for fast and simple creation of demos and small websites.

    New Module: Operations Manager
    Provides the backend user with a seamless dashboard overview of the system status by combining multiple data views and functionality in a single navigation context. Live view and status on real-time data, efficient automatic reporting. The Operations Manager has been implemented with large success on a number of large projects where overview is critical. The configuration facilitates specific client needs by being flexible and user friendly.

    Visualise and quantify forecast uncertainties
    Toolbox for computing skill scores and forecast confidence statistics using the R statistics software

    Support for Web Map Service and Web Feature Service
    Build in support for Web Map Service (WMS) and Web Feature Service (WFS) Services supporting smooth display of WMS and WFS layers on a map, combined with the feature and raster layers accessible from the database. This supports maps showing for instance: rainfall station locations from a database, overlaid on a WMS map of the topography that is hosted on a WMS server.

    One installer for all MIKE OPERATIONS modules
    MIKE OPERATIONS and its associated modules are now integrated into one installer for easy access to the software and related modules.


    Enhance your performance
    With Release 2017, if you have a corporate licence with a valid Service and Maintenance Agreement, you are automatically granted access to unlimited cores for individual simulations.

    21 Nov


    MIKE 2016 Service Pack 3



    Continuous development and improvement of our numerical engines
    MIKE 1D runoff model B, the kinematic wave model, for runoff simulations have been improved achieving more realistic and accurate infiltration processes calculation.

    Learn more

    Coast and Sea

    MIKE 21 Shoreline Morphology
    New example with comprehensive step-by-step guide included in the installation under MIKE 21/3 Coupled Model FM.

    MIKE 21 & MIKE 3 FM
    Added check of reordering when using decoupled files in MIKE 21 and MIKE 3 Flow Model FM.

    MIKE 21 Flood Screening Tool (FST)
    Improved performance, reduced runtime when low flow.

    Graphics Process Unit (GPU)
    Improved handling of multi-GPU simulations.


    MIKE Zero
    Improved perfomance of dynamic zooming and moving (shift+scroll) in MIKE Zero editors.

    Data management, decision support and operational forecasting

    Extend your MIKE OPERATIONS system to the web
    With the build-in web site builder it is now straight forward to bring your MIKE OPERATIONS data onto the web.

    Learn more
    18 Apr


    MIKE 2016 Service Pack 2


    Groundwater and porous media

    Groundwater Recharge in Partially and Fully Unstructured Models
    Groundwater recharge in partially and fully unstructured models. With SP2, the parameter In-/Outflow on Top/Bottom can now be used in models with partially or fully unstructured meshes, aligning the new mesh options with what is known from classic layered mesh models.

    Learn more

    Coast and Sea and Water resources

    MIKE 3 and MIKE 21 FM
    Ability to output bed shear stress values from the Hydrodynamic module of MIKE 3 and MIKE 21 Flow Model.

    Data management, decision support and operational forecasting


    • Jobs can now be configured to run from the ribbon menu
    • Functionality for promoting a scenario to forecast scenario has been added
    • Script parameter values can now be configured to be used in connection with executing scripts
    • Contingency table added to skill score results spreadsheet (R-Statistics). When calculating skills scores based on previous simulation runs and actual observations, a contingency table is now written to the skill scores result of each station

    MIKE INFO can now be extended with tools that are developed specifically for a project. Once developed to meet MIKE INFO requirements, the tools can be registered in the runtime.config file, and will appear in the MIKE INFO Analysis ribbon for the user to access.

    Addition of MIKE Workbench in MIKE INFO and MIKE OPERATIONS: With the added functionality, MIKE INFO and MIKE OPERATIONS now support code completion along with a myriad of other complementary useful features.

    Learn more
    25 Jan


    MIKE 2016 Service Pack 1



    Extended support for green infrastructure in MIKE URBAN
    With additional functionality for water-sensitive urban design (WSUD) in MIKE URBAN, it is now easier to preserve and create natural landscapes in urban areas.

    Learn more

    Data management, decision support and operational forecasting

    Introducing MIKE INFO Free
    MIKE INFO Free is the first version to support SQLite, a self-contained, serverless database engine, which enables you to run MIKE INFO without a licence by basing it on a local database.

    Learn more

    Customise your MIKE INFO start page with text and images
    MIKE INFO has been extended with a ‘Home Page Builder’ which enables you to customise your MIKE INFO Desktop start page with text and images that are uniquely related to a specific client or project.

    Learn more

    Introducing MIKE INFO user interface in Portuguese
    MIKE INFO Desktop and web-applications are now available in Portuguese.

    Learn more

    Enhanced custom data options in MIKE OPERATIONS
    The enhancements in MIKE OPERATIONS improve the process of working with custom data and documents, making it easier to access and view all your custom data.

    Learn more
    1 Dec


    MIKE 2016 Release



    Supporting green infrastructure
    Using the new features of MIKE URBAN in the 2016 Release, it has never been easier to properly build and implement water sensitive urban design practices.

    Learn more

    Extended modelling of all biological processes
    By linking the state-of-the-art water quality (WQ) modelling product MIKE ECO Lab with MIKE URBAN, it is now possible to model all biological processes in urban water systems.

    Learn more

    MIKE 1D – faster than ever
    MIKE 1D has taken a giant leap by improving the utilisation of multiple cores and the latest hardware resulting in significant speed improvement.

    Learn more

    Coast and Sea

    2D shoreline evolution modelling
    With MIKE 21 Shoreline Morphology (SM), you can undertake stable and robust modelling of shoreline evolution in 2D environments.

    Learn more

    GPU support for MIKE 3
    Building on the Graphics Processing Units (GPU) support in MIKE 21 from MIKE by DHI 2014, we've enhanced GPUs support to include MIKE 3.

    Learn more

    Faster calculations for sediment transport tables in LITPACK
    By parallelizing calculations, we've decreased the calculation times for sediment transport tables in LITPACK.

    Learn more

    Modelling underwater acoustics
    With the Underwater Acoustic Simulator (UAS), you can model underwater noise from a variety of man-made activities at sea and predict the impact on marine mammals.

    Learn more

    Water resources

    Introducing MIKE HYDRO River
    MIKE HYDRO River is a completely new and redesigned map-centric Graphical User Interface (GUI) for 1D river modelling.

    Learn more

    Infiltration and leakage in 2D surface flow
    MIKE 21 and MIKE FLOOD have been extended with a new option to include infiltration and leakage dynamics with 2D surface flow modelling.

    Learn more

    Faster flood screening outputs in MIKE 21
    A diffusive wave approach results in simpler and faster numerical solutions, enabling faster flood outputs for flood screening purposes.

    Learn more

    New flood modelling toolbox
    MIKE 2016 includes a new map-based toolbox for post-processing of 1D and 2D flood modelling results.

    Learn more

    Extended river modelling options in MIKE SHE
    MIKE SHE 2016 can be coupled with new MIKE HYDRO River model setups. It can also utilise MIKE 1D, the latest generation of our river modelling engine.

    Learn more

    Groundwater and porous media

    3D unstructured meshes in FEFLOW
    The option to use layered, partially unstructured, or fully unstructured meshes in 3D now provides even greater geometrical flexibility.

    Learn more

    Control-Volume Finite Elements (CVFE) method
    Especially for unsaturated and variably saturated conditions, the CVFE method provides more stability, faster convergence, and a better mass balance.

    Learn more

    Anisotropic macro-dispersion
    FEFLOW can now consider both flow and bedding direction with respect to dispersivity.

    Learn more

    Parameter statistics
    Descriptive statistics can now be calculated and graphically displayed for all parameters.

    Learn more


    New MIKE Zero Start Page
    The new MIKE Zero start page provides you with faster access to resources and information.

    Learn more