广东沿海强东北季风的气候统计特征

Climatic Statistical Characteristics of Strong Northeast Monsoonalong the Coast of Guangdong Province

通过对 1988～ 1997年冷空气造成的广东沿海强东北季风过程的气候统计分析 ,发现广东的强东北季风有明显的月分布规律 ,而年际变化有逐渐减少的趋势 ;强东北季风与地面因子相关程度较高 ,而与 85 0hPa要素相关性较低 ;同时发现地面冷高压中心位置聚合度较高 ,但不同月份、不同时次 。

The statistical analysis of climatological data concerning the strong northeast monsoon caused by cold air during the decade from 1988 to 1997 along the coast of Guangdong province reveals that the monthly change of the northeast monsoon is clear, and its interannual change is reducing. It is closer related with the surface predictors than that with the 850hPa ones. In addition, the location of the center of surface cold high, which would change with the different month and the forecast period, has high centralization.