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针对冬、春季南海海区风场，表层海流、海温场的季节变化，选用了21/2层海洋模式和简单一层大气边界层模式，研究了冬、春季东北风作用下南海上层海洋环流的基本形态及其对SST的影响，估算了这种影响对海面风场的反馈效应。研究结果表明，冬、春季东北季风与南海环流的相互作用对吕宋岛两部海域的气旋式冷涡的形成和维持有利。冬季（1月）强东北风作用使南海上层为一气旋式环流，上层环流对季风的反馈作用可使南海西北部东北风减弱，东南部东北风略加强，由北向南的越赤道流略强；春季（4月）弱东北风作用使南海南部、北部上层各有一气旋式环流，两个气旋式环流之间有一个反气旋式的环流，上层环流对季风的反馈作用使东北季风风速更弱，有利于越赤道流的转向和南海夏季风的形成。
According to the seasonal variation of the wind field, surface current and sea temperature field in the South China Sea in winter and spring, the 21/2 ocean model and the simple atmospheric boundary layer model were selected to study the effects of winter and spring northeast wind on the ocean circulation over the South China Sea Basic form and its impact on SST, the feedback effect of this kind of influence on sea surface wind field is estimated. The results show that the interaction between the northeast monsoon and the South China Sea circulation in winter and spring is beneficial to the formation and maintenance of the cyclonic cold vortex in the two waters off Luzon. The strong northeast wind in winter (January) makes the upper SCS a cyclonic circulation. The feedback effect of the upper circulation on the monsoon can weaken the northeasterly wind in the northwestern South China Sea, the northeast easterly in the southeast and the easterly flow from north to south In the spring (April), weak northeast wind caused a cyclonic circulation in the southern part of the South China Sea and the upper part of the northern part. An anticyclone circulation existed between the two cyclonic circulation and the feedback of the upper circulation to the monsoon made the northeaster monsoon wind velocity weaker , Is conducive to the transfer of the cross-equatorial flow and the formation of the South China Sea summer monsoon.