Subtropical Cyclone Anita's Potential to Tropical Transition Under Warmer Sea Surface Temperature Scenarios

被引:6
作者
Reboita, M. S. [1 ]
Oliveira, D. M. [1 ]
da Rocha, R. P. [2 ]
Dutra, L. M. M. [2 ]
机构
[1] Univ Fed Itajuba, Inst Recursos Nat, Itajuba, Brazil
[2] Univ Sao Paulo, Dept Ciencias Atmosfer, Sao Paulo, Brazil
关键词
subtropical cyclone; tropical transition; numerical experiments; Brazilian coast; SST; WRF; HURRICANE; PARAMETERIZATION; SENSITIVITY; FLUXES;
D O I
10.1029/2019GL083415
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
On 6 March 2010, Anita, the first subtropical cyclone observed over the South Atlantic Ocean, formed near the southeastern coast of Brazil, and during its life cycle, Anita almost acquired a tropical structure. The potential of Anita to undergo tropical transition in scenarios of increased sea surface temperature (SST) was investigated through a set of numerical sensitivity experiments. The results show that, if the SST had been 2 degrees C warmer throughout Anita's life cycle, the system would have undergone tropical transition in its maturity stage; however, if the SST had increased only during Anita's quasi-stationary period, the tropical transition completion would have occurred only with higher values of SST (6 degrees C).
引用
收藏
页码:8484 / 8489
页数:6
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