© The Author(s) (Proceedings of the 14th Conference on Atmospheric and Oceanic Fluid Dynamics) Posted on June 4, 2014 by SCG DR Copyright Holders: © The Author(s) (Proceedings of the 14th Conference on Atmospheric and Oceanic Fluid Dynamics) Self-archiving policy Conditions Accepted version: √ Author(s) permission is required Published version: √ Author(s) permission is required Remarks: The author retains copyrights to the papers that are published as part of a conference. Email author(s) for which version is allowed to be archived in DR-NTU. (verified by Zhao Yue via email) Verification Date: 22.05.2014