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本文利用在南极长城站考察期间，从接收到的地面气象传真图资料和利用气象自动观测站观测到的气象要素实况资料，对１９９４年７月２５日南极长城站一次强降温天气过程进行了分析。这次强降温天气过程的出现，是由于威德尔海东部副热带高压脊强烈发展与极地向东北方向伸展的冷高压脊打通，阻挡了东移气旋在威德尔海停滞，及西路气旋快速东移与威德尔海气旋合并，使得威德尔海停滞的气旋再度发展，而造成长城站较长时间东到东南风，使长城站出现一次强的降温天气过程
In this paper, Antarctic Great Wall Station during the inspection, received from the ground meteorological fax map data and the use of meteorological observation stations to observe the meteorological elements of live information on July 25, 1994 Antarctic Great Wall Station a strong cooling process was analyzed . The strong cooling process is due to the intense development of the subtropical high ridge in the eastern part of Weddell Sea and the opening of the cold ridge to the northeast of the polar region, blocking the eastward cyclone from stagnating in Weddell Sea and the rapid westward cyclonic move to Granville Delta Sea cyclone merged, making the stagnation of the Wedel sea cyclone re-development, and cause the Great Wall Station east to southeast for a long time, so Great Wall Station a strong cooling process