Data for Pegase

Input Data

The amount of data necessary to gather in order to perform Pegase simulations can look huge. It is necessary to consider though:

• in a general way, this data is normally collected by the administrations in charge of the management of surface water (it is therefore not needed to perform specific measurement campaigns)
• the absence of some data, although useful, does not prevent from doing some simulations with hard coded default values
• if some processes ar of a minor importance in some watershed, it is not necessary to spend a lot of time and effort to collect the related data (e.g. semi-hourly sunlight energy data is not useful if there is no or few phytoplankton)

The main input data to collect are:

• Map backgrounds
  • Digital Terrain Model (DTM) or Digital Elevation Model (DEM)
  • land use (Corine Land Cover…)
  • Digitisation of hydrographic zones outline
  • Digitisation of municipality outlines
• Watershed Data
  • River Digitisation
  • River Network Topology
  • Network Singularities (canals, dams…)
• Releases and Loads
  • Urban releases (location + inhabitant-equivalent + link with WWTP)
  • Industrial Releases (location + load + link with WWTP)
  • Waste Water Treatment Plants (WWTP) (Location, capacity, abatement)
  • Livestock (bovines, pigs…)
• Hydro-meteorology
  • Daily average flow measured at a few gauging stations where the flows are representative of the watershed behaviour
  • Natural Temperatures of water at a few measuring stations
  • Insolation
• Misc.
  • Quality measurements (not used for calculations, but required for validation)

The following table shows a summary of data required: