Global warming effects on the Arcticand Sub-Arctic Seas

摘要

After a rather hydrostatic approach to global warming (mean earth temperatureincreasing, ice melting, sea level raising) one came to realize that the effects ofglobal warming were more of a hydrodynamic nature and that the ocean dynamicsand its modifications in response to global warming constituted an essential factor.Taking into account the effect of global warming on ocean temperature distributionand currents contributed to a large extent to clarify the problem. The next step wasobviously to include the effect of global warming on the atmospheric circulation.We would like to illustrate this point by briefly discussing the so-called NorthAtlantic Oscillation (NAO).