摘要
利用FNL再分析资料对4类江淮气旋个例进行数值模拟和海温敏感性试验。结果表明:海温的增减对江淮气旋入海发展的移动路径影响并不显著,但对气旋降水及其入海后中心强度的影响非常明显,海温降低气旋降水减弱、强度减小,海温升高气旋降水增多、强度增大,且冬季气旋强度对海温降低的响应比暖季气旋更显著。海温增减的绝对值越大,气旋强度对其响应越显著。潜热是影响暖季气旋发展的重要物理机制,而感热是影响冬季浅薄型气旋发展的重要机制。
The numerical simulation and SST sensitivity test of four types of Jianghuai cyclones were carried out by using the FNL reanalysis data.The results showed that the increase or decrease of SST had no significant effect on the movement path of Jianghuai cyclones into the sea,but it affected the precipitation and central intensity of Jianghuai cyclones obviously.Cyclone precipitation and the intensity decreased with the decrease of SST,and cyclone precipitation and the intensity increased with the increase of SST,and the cyclones’intensity in winter were more significant than warm cyclones.The greater the absolute value of SST increases or decreases,the more significant the cyclone intensity responded to it.Latent heat was an important physical mechanism that affected the development of warm cyclones,and sensible heat was an important mechanism that affected the development of shallow cyclones in winter.
作者
牛丹
徐方姝
魏博洋
李铭鉴
NIU Dan;XU Fang-shu;WEI Bo-yang(Liaoning Provincial Meteorological Information Center,Shenyang,Liaoning 110166;Liaoning Province Meteorological Service Center,Shenyang,Liaoning 110166)
出处
《安徽农业科学》
CAS
2018年第32期151-155,共5页
Journal of Anhui Agricultural Sciences
关键词
江淮气旋
入海
海温
Jianghuai cyclones
Into the sea
SST
作者简介
牛丹(1990—),女,辽宁凌海人,硕士,助理工程师,从事气象信息及资料应用研究。
