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Yu Yubin, Chen Lianshou, Zhao Dajun. Numerical simulation of remnant entrainment on the rapid intensification of super typhoon Saomai(0608)[J]. Haiyang Xuebao, 2014, 36(1): 98-108. doi: 10.3969/j.issn.0253-4193.2014.01.011
Citation: Yu Yubin, Chen Lianshou, Zhao Dajun. Numerical simulation of remnant entrainment on the rapid intensification of super typhoon Saomai(0608)[J]. Haiyang Xuebao, 2014, 36(1): 98-108. doi: 10.3969/j.issn.0253-4193.2014.01.011

Numerical simulation of remnant entrainment on the rapid intensification of super typhoon Saomai(0608)

doi: 10.3969/j.issn.0253-4193.2014.01.011
  • Received Date: 2013-06-17
  • Using the CMA-STI Best Track Dataset and NCEP/NCAR reanalysis data,super typhoon Saomai(0608) is diagnosed during its rapid intensification stage over the coastal waters of China. The results show that the total vorticity budget begins to increase in the upper troposphere,and then it increases in the mid-level and gradually stretches to the lower troposphere. When the upper vorticity decreases and the middle and lower vorticity both increase,Saomai becoms rapid intensification. The vorticity advection term contributes greatest to the rapid-intensification of Saomai in the mid and lower troposphere,which is closely linked with tropical cyclone Bopha(0609). Further exploring the advanced research meso-scale model WRF_ARW V 3.3 to study,the simulation results show that the intensity rapid change over the coastal waters of Saomai is closely related to the entrainment of vorticity belt into its circulation from the remnant of typhoon Bopha (0609) which is neighboring to Saomai.
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