Recent LPJ Results


The following plots show some basic results from the standard run of LPJ  using the CRU climatology.
All plots refer to the equilibrium, that is the average of the last 30 years of the spinup.

Resolution is 0.5 degrees. Spinup was 1000 years using the first 30 years of the climatology and 1901 levels of carbon dioxide.

THIS IS UNPUBLISHED PRELIMINARY MATERIAL FOR DISCUSSION PURPOSES ONLY.

Producer of this material is Wolfgang Lucht.
Authors of this material are Wolfgang Lucht, Stephen Sitch, Sergey Venevsky, Kirsten Thonicke, Alberte Bondeau, and Wolfgang Cramer.


Contact: Wolfgang.Lucht@pik-potsdam.de
 
 


Total Vegetation Carbon


Total Soil Carbon


Annual Net Primary Production


Annual Soil Heterotrophic Respiration


Annual Carbon in Biomass Burning


Fire Return Interval


Plant Function Type with Maximal Cover


Maximal Fraction of Vegetation


Annual Evapotranspiration


Annual Runoff


Maximal Leaf Area Index

Since each of the several plant functional types present at a given location has a different leaf area index, this plot shows a leaf area index equivalent to the light absorption in the pixel as a whole. That is, the absorpbed radiation APAR was summed over all plant functional tapes and divided by incident PAR to arrive at a pixel fPAR value, which was then reinterpreted as a leaf area index. This index does not necessarily relate closely to the actual vegetation, especially where vegetation types with very different leaf area indixes co-occur.


Annual Fraction of Absorbed Radiation

The absorbed radiation APAR was summed over all plant functional types present in a pixel and added over the course of a year; then the result was divided by the annual sum of incident radiation PAR. The resulting value is the fraction of radiation incoming anytime during the year that is absorbed.