MIKE SHE

• Can simulate all the major processes in the land phase of the hydrologic cycle
• Is applicable on spatial scales ranging from single soil profiles (for infiltration studies) to regional watershed studies

MIKE SHE is computationally efficient

• Includes both simple and advanced process descriptions to maximize computational efficiency
• Has a flexible modular structure that allows users to include only the necessary processes
• Easily links regional and local scale models

MIKE SHE is versatile

• Can be linked to ESRI's ArcView for advanced GIS applications
• Includes alternate process descriptions for different applications

MIKE SHE is easy to use

• Links to original data rather than importing the data
• Allows you to update your original data and your model is automatically updated
• Includes a dynamic data tree that gives you a precise overview of all your data
• Has automatic data and model verification routines
• Includes sophisticated output tools, including animations

MIKE SHE includes advanced tools for

• Manipulating time varying data
• Model calibration
• Water and mass balance analysis

MIKE SHE is the tool of choice among professionals

• Is continuously developed to accommodate new research areas and new types of environmental problems
• Has a proven track record in hundreds of consultancy and research applications around the world
• Has continuously received top rank in independent comparison reviews

• Dynamic navigation tree – gives you a complete overview of your model while hiding irrelevant items
• Logical, dynamic dialogs – allows you to concentrate on the required data, since sub-dialogs contain only relevant parameters
• Top-down/Left-right model design – leads you through the model development in a natural manner
• Automatic data checking – saves you time trying to decipher obscure run-time errors
• On-line documentation - Comprehensive, context sensitive on-line documentation allows you to find answers quickly

A natural progression from conceptual to numerical model

• Stores the link to your original data – not the original data itself, which gives you unprecedented flexibility, for example
•  
  • Run multiple models from the same data set,
  • Update your data and update all your models automatically
  • Run rapid sensitivity analyses on your model domain, grid spacing, layer specifications, etc.
  • Use your favorite editor for managing your data,
• GIS integration – the seamless link to ArcView shape files for all distributed parameters and overlays saves you time and effort
• Geo-objects for natural, object-oriented model design – input your natural geologic formations (including lenses!) and let MIKE SHE take care of the conversion to the numerical grid
• Link models together – easily link local-scale models to regional-scale models, or multiple regional models together to include interactions between watersheds

Powerful surface water tools

• Simply link your MIKE SHE model to an existing MIKE 11 model
• Use MIKE 11 for the easy and accurate delineation of river channels and other surface water features that are important boundary conditions for your groundwater model
• Use the advanced MIKE 11 tools to add dams, weirs, culverts and other surface water control structures to your groundwater model for accurate surface water boundary conditions
• Add real river cross-sections to your groundwater model for accurate surface water routing and surface water levels

Advanced tools for data management

• Unsaturated soil properties
• Vegetation properties and growing season data
• Borehole and pumping data 

Sophisticated results analysis and presentation

• View your results as your simulation progresses
• Simultaneous view and analyze of 1D, 2D and 3D data
• Simultaneous view and analyze surface water, unsaturated zone and groundwater results
• Load and compare results from any number of result files
• Generated synchronized animations and avi-files
• Overlay GIS maps and bitmap images 
• Create sophisticated, report-ready graphics using the Plot Composer

• Precipitation (rain or snow)
• Evapotranspiration, including canopy interception
• Overland sheet flow
• Channel flow
• Unsaturated sub-surface flow
• Saturated groundwater flow

Within each of these, MIKE SHE offers several different approaches ranging from simple, lumped and conceptual approaches to advanced, distributed and physically-based approaches. Simple and advanced approaches may be combined which leads to an unparalleled flexibility that truly enables you to tailor the model to the hydrological problem rather than the opposite. Changing from a simple to a more advanced approach, or vice versa, is seamless and utilizes, to the extent possible, the existing data.

Precipitation, Evapotranspiration or Recharge

A useful tool to generate recharge (net-rainfall) is the DAISY GIS model. DAISY GIS is an advanced, physically-based, 1D root zone model that simulates water flow in vertical soil profiles. Despite its advanced, physically-based approach, DAISY GIS is very easy to use and produces recharge maps that can be directly input into MIKE SHE. In addition to water, DAISY GIS deals with advanced crop growth and nutrient dynamics. DAISY GIS is probably the most sophisticated recharge simulator available for MIKE SHE.

Unsaturated Zone

Soil Database

Land-use is described in terms of vegetation types combined with impervious/semi-impervious areas. Vegetation types and impervious/semi-impervious areas may be spatially distributed using land-use maps. Crop rotation is made easy by defining a date-of-establishment and then specifying a link to the crop type in the crop database. MIKE SHE comes with a database of typical crops in different climatic regions. Users may edit the database, add vegetation types to the database or create a new database from scratch.

Groundwater Flow

The geology is described in terms of layers or lenses with attached hydraulic properties. Properties can be specified either on a cell-by-cell basis or by property zones defined by .shp files (polygons) or grid-code files. MIKE SHE allows grid-independent geology specification, which allows you to change the horizontal or vertical mesh in seconds.   

Boundary conditions are specified for each computational layer. MIKE SHE supports traditional groundwater boundary conditions and offers large flexibility in terms of spatial and temporal variation of boundary conditions. Boundary conditions may be specified on a cell-by-cell basis, but typically it is more convenient to attach boundary conditions to geometric features such as polygons (lakes), lines (rivers) or points (pumps, injections, drains). A lake could, for instance, be a polygon (.shp file) with an attached water level time series and leakage coefficient. Similar to the meteorological time-series data, boundary time-series data may be specified in separate time-series files that include different and non-equidistant time steps. MIKE SHE 2002 automatically synchronizes all time-series data thus, eliminating tedious time-series preprocessing. Simulation time steps and stress periods may be specified independent of input time series.

River Flow

Overland Flow

• GeoModel - for interpretation of geology and creation of 3D geological models
• DaisyGIS - for defining and running a DAISY model setup

Solute Transport Modules

• Particle Tracking - advanced transient particle tracking based on the random walk method (SZ only)
• Advection/Dispersion - basic advection/dispersion solute transport module
• Sorption/Degradation - equilibrium/non-equilibrium adsorption and first-order degradation
• Biodegradation - advanced biological degradation
• Macro Pore Flow - a dual porosity tool for both the saturated and unsaturated zones

These modules currently run with the latest version of MIKE SHE water movement engine and the MIKE Zero dfs file system. However, the setup must be done using either a text editor (e.g. Notepad).

The solute transport and particle tracking modules are included in the MIKE SHE Enterprise version of MIKE SHE, but can be purchased separately with the MIKE SHE Professional version.