ANALYSIS OF REGIONAL ALBEDO CHARACTERISTICS AND ITS INFLUENCE IN THE REGIONAL CLIMATE MODEL REMO

摘要

The effects of land-use changes on climate have a high priority in climate impact researches. Nevertheless it is not trivial to integrate land-use changes in the Max Planck Institute’s REgional atmospherical climate MOdel REMO [Jacob (2001)], so that characteristics of a typical land-use type can be created and therewith systematical effects can be analyzed. As in many regional dynamical climate models, REMO is calculating in the target resolution with parameters, which are independent of land-use classes. The albedo data product ALBEDOMAP [Fischer et al. (2007)] of the Medium Resolution Imaging Spectrometer (MERIS) on the ESA platform ENVISAT is used as comparative data set. Results of model-sensitivity studies show, that even small changes in the albedo are influencing the simulation. Within this study the relevance of characteristically surface information concerning land-use change for fine resolutions in REMO where shown.