Session Details - AS21


Session Details
Section AS - Atmospheric Sciences
Session Title Recent Advances in the Science and Prediction of Tropical Cyclone
Main Convener Prof. Chun-Chieh Wu (National Taiwan University, Taiwan)
Co-convener(s) Dr. Kevin Cheung (Macquarie University, Australia)
Dr. Yihong Duan (National Meteorological Centre, China)
Prof. Russell Elsberry (Naval Postgraduate School, United States)
Prof. Hyun-Mee Kim (Yonsei University, Korea, South)
Dr. Tetsuo Nakazawa (World Meteorological Organization, Switzerland)
Session Description Tropical cyclone (TC), also known as hurricane in the Atlantic and typhoon in the western North Pacific in its mature stage, is one of the most devastating weather systems. The impacts from TCs are multiple in nature: Besides the direct threat from the strong winds, hazards are often brought by the torrential rainfall that causes flash flood, landslide and debris flow. Storm surge is another form of impact to the coastal areas. After decades of research effort, the theory of TC motion is quite mature. However, it is generally recognized that the problem is not completely solved yet because occasionally there are still cases of large TC track forecast errors from numerical models, especially when topographic effect is involved. Recent focuses of research include TC formation, intensity, rapid intensification, TC structure change, associated rainfall, landfall processes, extratropical transition and interaction with midlatitude systems. In-situ observations such as those from aircraft reconnaissance/surveillance programs (such as T-PARC), improvements in utilization of satellite data as well as those in numerical models all contribute to the advances of the science and prediction skill. Furthermore, climate variability of long-term TC activity is another active area of research in view of the possible contribution from anthropogenic climate change to more intense storms. Focuses in this aspect includes inherent data problems and capability of climate models in projecting future TC behavior. This session aims to create a platform for discussing recent advances in the aforementioned areas. Observational and numerical modeling studies on TCs, their interaction with the environment and associated hazards in the Asia Oceania region as well as other ocean basins are also welcome.