摘要
计算了黑潮海域海洋异常加热与后期1—12个月北半球大气环流的时滞相关，分析了二者的相关关系。结果表明，海洋异常加热对后期半年到一年北半球大气环流场有重要影响。当黑潮海域海洋异常多加热时，后期半球范围内大气环流的经向度将趋减小，反之则趋加强。在分析相关场演变的基础上，讨论了上述时滞关系的可能物理过程，指出黑潮海域海洋异常加热对后期下游大气环流型的影响，是通过改变中纬大气与高纬极地大气之间温度和位势高度梯度，进而影响后期下游大气环流型来实现的。
The relations between the Kuroshio region marine heating anomaly andthe North Hendsphere atmospheric circulation with 1- 12 month lag were studiedand showed the imPortan influenee of the marine heating anomaly on theatmospheric drculation. The results show that when the Kuroshio region marineheating is larger than normal, the send-persistent North Hendsphere weather systemsin the following seasons will be weaker, e.g., the stronger the Kuroshio region marineheating in the winter half year, the weaker the Canada the in the sununr half year,and the weaker the Europe for and the Ural rugh in the next winter half year, andvice versa. A hypothesis is proposed to prelindnarily explain the above phenomena,i. e. the influenee of the Kuroshio region heating anomaly on the atmosphericdrculation in following seasons is proceeded by altering the gradients of atmospherictemperature and geopotential heigh between middle and high latitude regions.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1996年第3期246-250,共5页
Oceanologia Et Limnologia Sinica
基金
中国科学院ky85-10项目
关键词
黑潮
海域
海洋异常
加热
北半球
大气环流
Marine heating anomaly Atmospheric circulation lag correlation
