There are two evident cyclonic eddies whose centers lie at 34 n , 164 band 33 n , 176 e , and two evident anti - cyclonic eddies whose centers lie at 33 n , 175 e and 32 n , 162 . 5 e . the result seems to suggest a causal relation between the formation , evolution and disappearance of the eddy and the kuroshio meander path 其中比较明显的涡旋包括中心位置分别位于34on ， 164oe和33 “ n ， 176 “ e附近的两个气旋涡和中心位置在33on ， 175oe和32on ， 162 . 5oe的两个反气旋涡。本文认为涡旋的形成、发展与消亡与黑潮路径的弯曲程度以及主轴流速的大小有着密切的因果关系。
In 1999 , the dipole existed in between the okhotsk high and the depression in the north of northeast china , thus the okhotsk high became active and maintained , the subh was located to an area quite further south than usual . the high persisted in the east region of nw china , the cold air flowed to the mid - lower reaches of the yangtze river along the high . in the east region of nw china , air steam under troposphere was strong sinking motion , and formatted the negative vorticity region , the vapour flux divergence was divgence . lt was apparently that the rain could n ' t occur in the eastern portin of nw china . in 2000 year , okhotsk high was very weak or did n ' t exist in , there was high in the east asia - japan , the subh is located to an area further north than usual . in the east region of nw china , the trough maintained , air stream under troposphere was strong ascending motion , the cycolonic circulation was prevailing , the vapour flux divergence was intensive convergences the rain easy happened in the east areas of northwest china 4多梅雨1999年鄂霍茨克海阻塞高压与我国东北北部低压形成偶极子，使得阻塞高压稳定少动，西太副高位置偏南，西北地区东部持续受高压控制，冷空气沿此高压流经长江中下游地区上空；在西北地区东部对流层中下层气流下沉运动较强，呈反气旋涡度，水汽通量散度辐散，不利于西北地区东部降水。空梅雨2000年相反，鄂霍茨克海高压减弱甚至不存在，东亚-日本为高压，西太副高位置偏西偏北，西北地区东部处于西风槽中，对流层中下层气流上升运动增强，盛行低压环流，水汽通量散度强烈辐合，有利于降水生成。
The anticyclone over china is intensifying . an intense winter monsoon will bring the mass of cold air now piling up over northern guangdong to the south china coastal region tomorrow night ( wednesday , 25 december 2002 ) . winds in hong kong will then strengthen from the north and temperatures will start to fall significantly 位于中国的反气旋正逐渐增强，现时囤积在广东北部的冷空气会随著一股强烈的冬季季候风在明天(十二月二十五日，星期三)晚上到达华南沿岸，届时本港北风会增强，气温开始显著下降。
