CoupModel

Coupled heat and mass transfer model for the soil-plant-atmosphere system

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  • Documentation
    • Reference Manual, Jansson & Karlberg (2011)
    • Brief Background
    • Some Basic Concepts
      • Sim File
        • Attached or Linked Files to the Sim File
      • What is a PG file
  • Basic Description of Platform
  • DownLoading of model
  • Tutorials
    • Interface and Windows in Docking Stations
  • History
    • Publications prior 2008 – Also including SOIL and SOILN
    • New Features with version 5.0 April 2014
  • New Model Develpment
    • Previous News Prior May 2015
    • News Anounced 2009-09-01 – 2015-04-09

New Model Develpment

Information about new model features

New Version 6.2.2 – Bug fixed and some new features

  • by pej
  • Posted on March 12, 2023
  • Bug Fixed

One Bug are related to the introduction to introduction of version 6 and may have large impacts on some perennial ecosystem simulation where nitrogen is a major growth regulator. So if you have current studies […]

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Thermal Conductivy option, update

  • by pej
  • Posted on November 3, 2022November 3, 2022
  • Bug Fixed

The default option for estimating the soil thermal conductivy is based on Kerstens equation but also the Balland & Arp approach from 2005 (Modelling soil thermal conductivities over a wid range of conditions, J. Eng. […]

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Simulation of the Future based on the History

  • by pej
  • Posted on December 20, 2019
  • New Design of Simulations

The new version 6.1.0 of the model includes a new option that allows simple extrapolation into the future based on the previous year. To perform such a simulation we need climate data from a complete […]

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GrainFilling Allocation – New option with dynamic allocation rate

  • by pej
  • Posted on December 11, 2019
  • New Model Develpment

During GrainFilling with a change of GSI from 2 to 3. Allocation to Grain is governed by parameters to reallocate from Leaf, Stem and Root. This allocation rate is by a first order parameter for […]

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Extended use of Water Uptake functions for each plant

  • by pej
  • Posted on November 9, 2019
  • Bug Fixed

The use of the newly introduced switch WaterUptakeFunction. For the new specific option for each plants now also the temperature impact on the water uptake is considered. In addition the Mass Balance Check for the […]

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New version 6.0.2 New developments for Plant Mobile Pool, Water Uptake functions and Litter Fall

  • by pej
  • Posted on October 29, 2019October 29, 2019
  • Bug Fixed

The Plant Mobile Pool is active for seasonal reallocation of Nitrogen and Phosphor. The New P model was using a common function to estimate C/P ratios and C/N ratios. However because of problems when the […]

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Updated function for estimation of Root Length from Root biomass

  • by pej
  • Posted on May 16, 2019May 16, 2019
  • New Model Develpment

Previous version only considered C Root and not C Old Root for estimating the root length. This is now changed so both Fine root pools are considered.

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Control of Growth Stage Index after harvest and Growing temp sums

  • by pej
  • Posted on May 14, 2019
  • Bug Fixed

The growth stage funtion is now updated to the post harvest value (GSI Post Harvest) as assigned by the user from the plant behaviour Table During winter regulation of plant The GSI will be assigned […]

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Modified Growth Stage Index (GSI) for late ripening stage and reset after harvest

  • by pej
  • Posted on April 4, 2019April 4, 2019
  • New Model Develpment

The Last stage of GSI from 3 to 4 according to the scale from full grain filling to a stage of harvest was previously regulated only by a time function. This step has now been […]

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Global Warming Potential Variables

  • by pej
  • Posted on January 23, 2019
  • Bug Fixed

The new version is now including optional outputs to compare the global warming potential of greenhouse gas emissions using the conversion factor for CO2 equivalents. The recent factors are based on IPCC recommendation with 28 […]

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