documentation

documentation: 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: Model description

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

documentation-1

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)

documentation-2

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)

Model description