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PLATIN (PLant-ATmosphere INteraction)
a model of biosphere/atmosphere exchange of latent and sensible heat, trace gases and aerosol constituents

 

 Ludger Grünhage1 & Hans-Dieter Haenel2

1Department of Plant Ecology, Justus-Liebig-University, Heinrich-Buff-Ring 26-32, D-35392 Giessen, Germany
2Institute of Agricultural Climate Research, Johann Heinrich von Thunen Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries, Bundesallee 50, D-38116 Braunschweig, Germany

 

PLATIN is based on the canopy energy balance following the big leaf approach. The big leaf concept assumes that the vertical distribution of sources and/or sinks of a scalar (sensible heat, latent heat, ozone or other trace gas, aerosol constituents) can be represented by a single source and/or sink at the surface of a big leaf. The model documented here is an extended version of the model published by Grünhage and Haenel (1997).

Grünhage, L. & Haenel, H.-D. (1997): PLATIN (PLant-ATmosphere INteraction) I: a model of plant-atmosphere interaction for estimating absorbed doses of gaseous air pollutants. Environmental Pollution 98, 37-50.
 

Model description

canopy-developmentModel description

Grünhage, L. & Haenel, H.-D. (2008): Detailed documentation of the PLATIN (PLant-ATmosphere INteraction) model. Landbauforschung Völkenrode, special issue 319, 1-85.

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  • Abstract/Zusammenfassung (download)

  • Introduction (download)

  • Biosphere/atmosphere exchange of latent and sensible heat (download)
    - Erratum (download)
    - parameterization of Rb for forests ecosystems (download)
    - parameterization of Rstom (download)

  • Biosphere/atmosphere exchange of trace gases (download)
    - Erratum (download)

  • Biosphere/atmosphere exchange of fine-particle constituents (download)

  • Input parameters needed (download)

  • References (download)

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Appendix A
Parameterization of net radiation (download)
Appendix B 
Radiation model (download
- improved radiation model (download)
Appendix C 
Parameterization of the atmospheric stability functions (download
- Parameterization for forest ecosystems (download
Appendix D 
Parameterization of ground heat flux density and energy exchange due to photosynthesis (download)
Appendix E 
Jarvis functions for radiation, temperature, water vapour pressure deficit of the atmosphere, soil moisture, phenology, ozone and carbon dioxide (download)  
- Erratum (download)  
- phenology function for forest ecosystems (download)
Appendix F 
Equations for water vapour pressure deficit of the atmosphere, slope of the water vapour pressure saturation curve and density and specific heat of moist air (download)
Appendix G 
Biosphere/atmosphere exchange of carbon dioxide (download)
Appendix H 
Soil water model (download)
Appendix I 
Estimation of displacement height and momentum roughness length from measured data (download)
Appendix J 
Estimation of bulk canopy resistance for water vapour from measured data (download)
Appendix K 
Upscaling of meteorological data measured above short vegetation to a height of 50 m (download)
Appendix L 
Calculation of photosynthetic photon flux density from global radiation (download)
Appendix M 
Conversion of units (download)
List of symbols
(download)
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Parameterization of winter wheat canopy development  (download)