Analysis of interactions among two tropical depressions and typhoons Tembin and Bolaven (2012) in pacific ocean by using satellite cloud images

Ji Chyun Liu, Yuei An Liou, Meng Xi Wu, Yueh Jyun Lee, Chi Han Cheng, Ching Pin Kuei, Rong Moo Hong

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


This paper presents a framework for using remote sensing imagery and image processing techniques to analyze the interactions among tropical depressions (TDs) and typhoons. The purpose is to properly understand and predict this phenomenon, in order to reduce their influence on the regions where they pass by. Improvements on the understanding of the interactions among TDs and typhoons are obtained and presented. They carry the potential to improve forecast of severe weather system. In this paper, we analyzed the physical responses of TDs on two typhoons Tembin and Bolaven (2012), including TD's appearance, development, interaction, and mergence. According to the Central Weather Bureau of Taiwan, Tembin and Bolaven were formed about 1550 km apart. In general, the Fujiwhara effect happens when two storms are within a distance of 1400 km. Does the TD have impacts on the typhoons, and could we also call this impact as Fujiwhara effect? The 3-D profiles of the weather systems are reconstructed using the multifunctional transport satellite (MTSAT) infrared cloud images by the image reconstruction technique (IRT). The 3-D profiles of typhoons were implemented for investigating the in-depth distribution of the cloud top from a surface cloud image. The main parameters, which have been analyzed in this paper, are distance, height difference, rotation, and sizes of the two TDs and the two typhoons. The results showed that two TDs occurred between typhoons Tembin and Bolaven, which interacted with each other through upward convection and attraction between two typhoons and the TDs, respectively. The mergence of the two TDs caused the typhoons to start rotating and generate strengthened power. The findings of the TD effects on two typhoons represent a new aspect of the interaction between TD and typhoon.

Original languageEnglish
Article number6871307
Pages (from-to)1394-1402
Number of pages9
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number3
StatePublished - 1 Mar 2015


  • Satellite cloud image
  • three-dimensional (3-D) profile reconstruction
  • tropical depression (TD)-cyclone interaction


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