学术
NUMERICAL EXPERIMENTS OF EFFECT OF SSTA OVER THE INDIAN OCEAN ON ATMOSPHERIC LOW-FREQUENCY OSCILLATION IN THE EXTRATROPICAL LATITUDE
邱明宇[1,2] 陆维松[3] 陈汇林[1,2] 蔡亲波[1]
[1]Hainan Institute of Meteorological Science / Key Laboratory for Meteorological Disaster Prevention and Mitigation in the South China Sea, Haikou 570203 China [2]Hainan Climate Center, Haikou 570203 [3]Department of Atmospheric Sciences, Nanjing University of Information, Science and Technology, Nanjing 210044 China
文章出处:
《热带气象学报：英文版》-2007年13卷1期 -73-76页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1006-8775（2006）02-0073-04
相关文章:
NUMERICAL EXPERIMENTS OF EFFECT OF SSTA OVER THE INDIAN OCEAN ON ATMOSPHERIC LOW-FREQUENCY OSCILLATION IN THE EXTRATROPICAL LATITUDE
QIU Ming-yu , LU Wei-song , CHEN Hui-lin, CAI Qin-bo（1. Hainan Institute of Meteorological Science / Key Laboratory for Meteorological Disaster Prevention and Mitigation in the South China Sea, Haikou 570203 China; 2. Hainan Climate Center, Haikou 570203; 3. Department of Atmospheric Sciences, Nanjing University of Information, Science and Technology, Nanjing 210044 China）
Abstract:
Numerical experiments on forcing dissipation and heating response of dipole （unipole） are carried out using global spectral models with quasi-geostrophic barotropic vorticity equations. For each experiment model integration is run for 90 days on the condition of three-wave quasi-resonance. The results are given as follows： Under the effects of dipole （unipole） forcing source and basic flow intensity, there exist strong interactions among the three planetary waves and quasi-biweekly and intraseasonal oscillation of the three planetary waves. In the meantime, the changes in the intensity of dipole or unipole forcing source and basic flow have different frequency modulation effects on LFO in the middle and higher latitudes. The results of the stream function field of three quasi-resonant waves evolving with time confirm that the low-frequency oscillation exists in extratropical latitude.[著者文摘]
Key words:
Indian Ocean temperature; dipole （unipole）; frequency modulation; waves quasi-resonance;atmospheric low-frequency oscillation
基金资助:
Foundation item： Natural Science Foundation of China （40275016）; 0peration “Six Kinds of Talents Summit” Foundation for Jiangsu Province
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