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Modeling CO2 sinks and sources of European land vegetation using remote sensing data

Klaus Wisskirchen(1) and Kurt Günther(2)

(1) DLR, Münchner Straße 20, D-82234 Wessling, Germany
(2) DLR, Münchener Straße 20, D-82234 Weßling, Germany


Quantifying sources and sinks of climatological relevant trace gases as well as understanding their exchange between atmosphere and land surface have become essential research topics in atmospheric sciences during the last years. Modeling of the net CO2 uptake by vegetation (Net Primary Productivity, NPP) has become an important tool to study the mechanisms of CO2 exchange and to quantify the magnitude of terrestrial sinks and sources.

At the German Aerospace Center (DLR) the vegetation model BETHY/DLR (Biosphere Energy Transfer Hydrology Model, Knorr, 1997) is used to perform simulations of NPP over Europe. The model is driven by remote sensing data of leaf area index (LAI) and land cover classification and meteorological input from the ECMWF (European Center for Medium Range Weather Forecast).

As a step towards an operational NPP-modeling system for Europe we will present first results of the geographical distribution of NPP for different land cover classes, such as coniferous forests and grasland. Also regional evaluation results of our simulations with ground-based measurements from CARBOEUROPE-stations will be presented.


Full paper

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry