Abstract
Frequent winter snowstorms have recently caused large economic losses and attracted wide attention. These snowstorms have raised an important scientific question. Under scenarios of future global warming, will winter precipitation in China increase significantly and produce more snow in the north? Using Coupled Model Intercomparison Project phase 3 (CMIP 3) model projections under the Special Report on Emissions Scenario A1B scenario, we generated a possible future Arctic condition, the summer (September) “ice-free Arctic” condition. We then used corresponding monthly sea surface temperature (SST) values and a set of CO2 concentrations to drive an atmospheric general circulation model (AGCM), for simulating East Asian climate change. The experimental results show that during the boreal winter (December-January-February; DJF), global surface air temperature would increase significantly under this scenario, producing substantial warming in Arctic regions and at high latitudes in Asia and North America. The Siberian High, Aleutian Low and East Asian winter monsoon would all weaken. However, because of increased transport of water vapor to China from the north, winter precipitation would increase from south to north. In addition, the significant increase in winter temperature might cause fewer cold surges.
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Ma, J., Wang, H. & Zhang, Y. Will boreal winter precipitation over China increase in the future? An AGCM simulation under summer “ice-free Arctic” conditions. Chin. Sci. Bull. 57, 921–926 (2012). https://doi.org/10.1007/s11434-011-4925-x
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DOI: https://doi.org/10.1007/s11434-011-4925-x