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Downscaling of Climate Models for use in Hydrological Modelling
On June 5 afternoon, a seminar on downscaling technologies and the applications in assessments of climate change impacts on hydrological cycle and agriculture was held in the Laboratory for Climate Studies (LCS), China Meteorological Administration (CMA).
E. J. Forland, a senior scientist and director of climatological Department, Norwegian Meteorological Institute, gave a talk on ‘Downscaling of Climate Models for use in Hydrological Modelling’. He first introduced the observed climate change of the past 100 years in Norway, then explained in detail the methodology of downscaling of global climate model outputs, and finally presented the main research results related to the impact assessments including the impacts of climate change on hydrological cycle and hydro power generation in Norway and northern European countries. The scientists from the LCS and other institutes of the CMA were very impressed by the research results especially the 1×1km gridded maps of daily temperature and precipitation for the current climate and the future scenarios established by the empirically and dynamically downscaling methods, and the results obtained from a gridded water balance model including the daily values of stream flow, snow (accumulation and melting), floods and drought conditions etc.
The talk was followed by an active interaction between the speaker and the attendants. Large interests and hot discussions were given to the methodology of simulations by using regional climate models, the unique features and possible causes of regional climate change in northern European countries, and the uncertainties still existing in studies of regional climate change detection and projections. The seminar was chaired by Professor Ren Guoyu of the LCS.
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