History OF PegOpera

The Pegase Opera project

The 14^th of Octobre 2008, during a seminar in Liège, a project about enhancing operationality was proposed to the historical users of the Pegase model :

• The General Direction of Agriculture and Natural Resources and Water of the walloon Public Service (SPW, Belgium)
• The french Water Agency Rhin-Meuse (AERM, France)
• The french Water Agency Loire-Bretagne (AELB, France)
• The french Water Agency Adour-Garonne (AEAG, France)
• The Administration for Water Management of the Grand-Duchy of Luxembourg (AGE-GDL)
• The Vlaamse Milieumaatschappei (VMM, Belgium)

After many brainstorming, a specification was written and then, submitted to the partners at the seminary of 21^st of octobre 2009 in Liège.

Following this seminar, AERM, AELB and AGE-GDL decided a three-years help program to realise a part of the submitted specifications running over 2010-2012. SPW joined them, to implement a supplementary part of the specifications through a convention running from 2011 to 2015.

Some development releases (α, β and RC) have been provided as soon as possible, to end-up end 2012 with version 5.1 of PegOpera.

The α version

During a workshop in Metz, the 3^rd of june 2010, on the basis of the Graphical User Interface Framework in development, the α version has been presented. It contained some views:

Icon	File type	File content
	.listbv	View of the digitised River Network, and other layers
	.nstdeb	evolution of the daily average flow
	.nsttmp	evolution of the daily average water temperature
	.nstlux	evolution of the semi-hourly insolation

Some dedicated editors:

Icon	File Type	File Content
	.pegase	Simulation Configuration File
	.parnst	Unsteady Parameters
	.appsol	Parametering of the Soil leaching functions
	.parrej	Generic and Default parameters for releases
	.seqeau	Definition of Quality Standars SEQ-Eau, S3E, IPO etc...
	.sortie	Flags identifying output files produced
	.evosol	Evolution of soil leaching functions
	.q_inout	Abstractions and Water supply
	.q_mesu	Average flow measured (or characteristical flows) for steady-state simulation

It was possible to export some data files as .xls files, .csv files (with choice of separator) or .dbf files. It was also possible to import them to their original format. The importable/exportable files were either base files (.000) or stations and releases data files.

• coddeb
• codqua
• codtmp
• codlar
• codhau
• codlux
• rejepu
• rejind
• rejurb

It was possible to start simulations using a PC port of the version 4 of the model and to exploit the result produced.

The daily average results could be viewed as coloured maps, curves along the river or time series.

The β version

During the 2010 seminar, organised the 18^th of Octobre 2010 in Orleans, the β version of the GUI was presented. It contained the following enhancements:

• A-posteriori statistical calculations about results of simulation
• File sort by type or extension
• Deletion of layers in the basin view
• AIX compatible binary files generation
• Visualisation of non-stationnary result files (nstxx) as time series
• Visualisation all binary result files as curves or maps
• Overlay of Measurements to result curves
• Export layers as "Shape files"
• Visualisation of features from geo-portals (WFS)
• First prototype of global validation tools
• Import of base data from Relational Database

The RC version

During the 2011 seminar, organised the 17^th of Octobre 2011 in Douai, the RC0 version of the GUI was presented. The main new features were:

• Geographical Transformations
• Projection Editor
• Display of Releases Connectivity
• Enhancements to curve display
• Enhancements to nstxxx curves (non-stationnary data)
• Multiple selection and zoom to selection
• Suppression of layers by type
• Display of coordinates and value under the pointer
• Customisation of referential (North indicator) and scale
• Visualisation of georeferenced images (eventual mapping on DEM)
• View of non-stationnary results output points
• Selection of BC/IC files
• View of nstxxx data from teh non-stationnary parameters editor (.parnst)
• Authentification according to a database content
• Permission Editor
• Base files (000) editor, for releases and stations
• Customisation of results value scale
• Configuration control with SVN
• Globalisation by waterbody
• Statistics generation on selectet results
• Quality indices generation on selected results
• Restructuring of result folder

The 5.1 version

During the 2012 seminar, organised the 15^th of Octobre 2012 in Liège, the final version of Pegase Opera project has been presented. The following features had been added:

• First version of the Object Oriented model
• Selection of rivers to calculate by simple clic
• Add/suppress soil leaching functions, restore default values
• Visualisation of base files as layer
• Calculation of mixing zones for releases
• Save preferences by file type
• Generic importer of hydro-meteo data
• Generic importer for measurements and measurements shaping
• Importer of WWTP abatement data
• Display progress of simulations running
• Comparison of result files

The versions 5.3 and Community Edition (June 2014)

The following features have been added to PEGOPERA:

• English translation (model and interface)
• Reorganisation of Pegase Menu
• Automatic creation of sample projects (CE)
• Contextual Menu in simulation configuration editor
• Free access to the model (CE)
• Various enhancements

The 6.0 version (July 2015)

The following features have been added to PEGOPERA:

• Automatic Generation of plots
• Domain Preparation suite of tools
• Rework of Global Validation
• Rework of extended SEQEau
• Yearly update menu and tools
• Domain Fusion tool / sub-domain extraction (topology only)
• Various enhancements

The 6.1 version (July 2016)

The following features have been added to PEGOPERA:

• Metapollutants
• Update of Soil leaching functions
• Daily rainfall data
• Global Validation using 2D maps
• Adoption of XML format for data files
• Separation of industrial polluting load out of rejind files (&rarrow;polind)
• "natural" flow files
• Various enhancements

The 6.2 version (October 2017)

The following features have been added to PEGOPERA:

• Macro elements (Alcalinity, Total Inorganic Carbon)
• pH
• Urban Releases in Rainy Weather
• Waterproof soil leaching
• Bypass of WWTP, Sewer overflow
• Non-linear leaching functions C = C₀ * Q_s^exp + f * ΔQ_s
• Submodel for Suspended matter/sedimentation
• Sediment Classes (granulometry)
• Sediment age boxes(residence time) and cohesion
• Sedimentation Flux
• Resuspension Flux
• Import of polist/polind files from CSV
• Enhancement of Boundary Conditions (catalog, automatic upstream carbon flux, mapping file: mapclim

The 6.3 version (June 2019)

The following features have been added to PEGOPERA:

• External coupling with soil models (direct and indirect releases)
• Custom Quality indices
• Accidental Release Wizard
• Balance sheet per compartment
• COD : Dissolved Organic Carbon
• CORD: Organic Carbon Rapidly Degradable (equivalent to BOD₅, but expressed in kgC/d and not in kgO₂/d)
• COT : Total Organic Carbon (equivalent to COD, but expressed in kgC/j and not in kgO₂/j)
• NH4 : Ammonium (NH₄)
• NO2 : Nitrite (NO₂)
• NO3 : Nitrate (NO₃)
• NKJ : Kjeldahl Nitrogen (Organique Nitrogen + NH₄)
• NTOT: Total Nitrogen
• PO4 : Phosphate (PO₄)
• PTOT: Total Phosphorus
• Hourly outputs and Time Steps
• Visualisation of coordinates and corrected coordinates for files 000
• Conductivity calculation
• Support for xlsx files

The 6.4 version (June 2021)

The following features have been added to PEGOPERA:

• Propagation of non-stationnary water wave
• Aided Generation of simplified basins
• Aided Generation of simple simulations
• tool for generation of lakes and dams; visualisation
• Operations on shapefiles
• Split at confluences
• Save As...
• Batch verification et correction of names
• Change of Geographic Projection
• Consolidated Balance Sheets
• Use of java OpenJDK ainstead of Oracle JRE
• Upgrade of Java3D library
• Various enhancements

The 6.5 version (June 2024)

The following features have been added to PEGOPERA:

• Plankton editor (parphy, varphy)
• Variable height lakes
• Balance of quantity in variable height lakes
• Batch Graphs for multi-year simulations
• Use of JFreechart 1.5
• Thermal releases editor
• Overloading Boundary Conditions (e.g. lake outlet)
• Direct Injection of dissolved and particulate metapollutants in polind and polist
• Various enhancements