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http://dx.doi.org/10.5467/JKESS.2011.32.7.770

Projected Climate Change Scenario over East Asia by a Regional Spectral Model  

Chang, Eun-Chul (Department of Atmospheric Sciences and Global Environment Laboratory, Yonsei University)
Hong, Song-You (Department of Atmospheric Sciences and Global Environment Laboratory, Yonsei University)
Publication Information
Journal of the Korean earth science society / v.32, no.7, 2011 , pp. 770-783 More about this Journal
Abstract
In this study, we performed a downscaling of an ECHAM5 simulated dataset for the current and future climate produced under the Special Report on Emission Scenarios A1B (SRES A1B) by utilizing the National Centers for Environmental Prediction (NCEP) Regional Spectral Model (RSM). The current climate simulation was performed for the period 1980-2000 and the future climate run for the period 2040-2070 for the COordinated Regional climate Downscaling EXperiment (CORDEX)'s East Asia domain. The RSM is properly able to reproduce the climatological fields from the evaluation of the current climate simulation. Future climatological precipitation during the summer season is increased over the tropical Oceans, the maritime-continent, and Japan. In winter, on the other hand, precipitation is increased over the tropical Indian Ocean, the maritime-continents and the Western North Pacific, and decreased over the eastern tropical Indian Ocean. For the East Asia region few significant changes are detected in the precipitation climatological field. However, summer rainfall shows increasing trend after 2050 over the region. The future climate ground temperature shows a clear increasing trend in comparison with the current climate. In response to global warming, atmospheric warming is clearly detected, which strengthens the upper level trough.
Keywords
Downscaling; RSM; emission scenario; global warming; East Asia; CORDEX;
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