摘要: Publisher Summary The chapter presents some of the major new ideas concerning Arctic circulation supplemented by a brief review literature to serve as background for coming IGY contributions. For many years, region is scene interesting features in atmospheric and, therefore, deserves special attention. Progress meteorology has always been dependent upon direct observations. In past 25 years since advent radiosonde Arctic, good station network gradually grown. Because very large amount material, concerned with two advances: general shown mean stratospheric maps and phenomena sudden temperature wind changes. briefly mentions papers that have appeared other phases convenience those wishing locate recent work particular aspects subject. unsolved problems are largely observing facilities able describe atmosphere almost well mid-latitudes. Each topics mentioned thus problem requiring research. However, greatest interest probably questions lie just above levels where one can observe regularly. this instance, these large-scale middle stratosphere above, through which there hope further explaining “unusual” found at high latitudes.