Manual of PEARLNEQ v5

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This manual describes the PEARLNEQ v5 software package . This package can estimate long-term sorption parameters using results of aged-sorption studies with soil, using a submodel for sorption and transformation that is identical to the submodel used for that purpose in the FOCUS_PEARL v3.3.3. The submodel assumes two types of sorption sites: equilibrium sites and non-equilibrium sites. The sorption isotherms for both sites are described with Freundlich equations. The mathematical equations describing the submodel are solved via a FORTRAN programme. An additional FORTRAN programme generates the necessary input files for the PEST optimisation package. Instructions are given how to obtain optimized parameters using an example dataset and how to obtain parameters using your own data.
Original languageEnglish
Place of PublicationWageningen
PublisherWettelijke Onderzoekstaken Natuur & Milieu
Publication statusPublished - 2012

Publication series

PublisherWettelijke Onderzoekstaken Natuur & Milieu


  • soil chemistry
  • pesticides
  • adsorption
  • degradation
  • models

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