World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

Extraction of Spatial-temporal Rules from Mesoscale Eddies in the South China Sea Based on Rough Set Theory : Volume 7, Issue 6 (07/12/2011)

By Du, Y.

Click here to view

Book Id: WPLBN0004020550
Format Type: PDF Article :
File Size: Pages 15
Reproduction Date: 2015

Title: Extraction of Spatial-temporal Rules from Mesoscale Eddies in the South China Sea Based on Rough Set Theory : Volume 7, Issue 6 (07/12/2011)  
Author: Du, Y.
Volume: Vol. 7, Issue 6
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Mao, H., Su, F., Fan, X., He, Z., Du, Y., Zhou, C., & Wang, D. (2011). Extraction of Spatial-temporal Rules from Mesoscale Eddies in the South China Sea Based on Rough Set Theory : Volume 7, Issue 6 (07/12/2011). Retrieved from

Description: State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China. In this paper, a rough set theory is introduced to represent spatial-temporal relationships and extract the corresponding rules from typical mesoscale-eddy states in the South China Sea (SCS). Three decision attributes are adopted in this study, which make the approach flexible in retrieving spatial-temporal rules with different features. The results demonstrate that this approach is effective, and therefore provides a powerful approach to forecasts in the future studies. Spatial-temporal rules in the SCS indicate that warm eddies following the rules are generally in the southeastern and central SCS around 2000 m isobaths in winter. Their intensity and vorticity are weaker than those of cold eddies. They usually move a shorter distance. By contrast, cold eddies are in 2000 m and deeper regions of the southwestern and northeastern SCS in spring and fall. Their intensity and vorticity are strong. Usually they move a long distance. In winter, a few rules are followed by cold eddies in the northern tip of the basin and southwest of Taiwan Island rather than warm eddies, indicating cold eddies may be well-regulated in the region. Several warm-eddy rules are achieved west of Luzon Island, indicating warm eddies may be well-regulated in the region as well. Otherwise, warm and cold eddies are distributed not only in the jet flow off southern Vietnam induced by intraseasonal wind stress in summer-fall, but also in the northern shallow water, which should be a focus of a future study.

Extraction of spatial-temporal rules from mesoscale eddies in the South China Sea based on rough set theory

Bai, H., Ge, Y., Wang, J., and Liao, Y.: Using rough set theory to identify villages affected by birth defects: the example of Heshun, Shanxi, China, Int. J. Geogr. Inf. Sci., 24, 559–576, 2010.; Cheng, X., Qi, Y., and Wang, W.: Seasonal and Interannual Variabilities of Mesoscale Eddies in South China Sea, J. Trop. Oceanogr., 24, 51–59, 2005.; Fayyad, U. M. and Irani, K. B.: On the handling of continuous-valued attributes in decision tree generation, Mach. Learn., 8, 87–102, 1992.; Fang, G., Chen, H., Wei, Z., Wang, Y., Wang, X., and Li, C.: Trends and interannual variability of the South China Sea surface winds, surface height, and surface temperature in the recent decade, J. Geophys. Res. 111, C11S16, doi:10.1029/2005JC003276, 2006.; Fayyad, U. M. and Irani, K. B.: Multi-interval discretization of continuous-valued attributes for classification learning, Proceedings of the 13th International Joint Conference on Artificial Intelligence, IJCAI-93, 1993.; He, Z., Wang, D., and Hu, J.: Features of eddy kinetic energy and variations of upper circulation in the South China Sea, Acta Oceanol. Sinica, 21, 305–314, 2002 (in Chinese with English abstract).; Hetland, R. H., Hsueh, Y., Leben, R. R., and Niiler, P. P.: A loop current-induced jet along the edge of the West Florida shelf, Geophys. Res. Lett., 26, 2239–2242, 1999.; Hu, J., Kawamura, H., Hong, H., Kobashi, F., and Wang, D.: 3–6 months variation of sea surface height in the South China Sea and its adjacent ocean, J. Oceanogr., 57, 69–78, 2001.; Hurlburt, H. E. and Thompson, J. D.: A numerical study of loop current intrusions and eddy shedding, J. Phys. Oceanogr., 10, 1611–1651, 1980.; Hwang, C., Wu, C. R., and Kao, R.: TOPEX/Poseidon observations of mesoscale eddies over the Subtropical Counter Current: kinematic characteristics of an anticyclonic eddy and a cyclonic eddy, J. Geophys. Res., 109, C08013, doi:10.1029/2003JC002026, 2004.; Jia, Y. and Liu, Q.: Eddy shedding from the Kuroshio bend at Luzon Strait, J. Oceanogr., 60, 1063–1069, 2004.; Jia, Y., Liu, Q., and Liu, W.: Primary studies of the mechanism of eddy shedding from the Kuroshio bend in Luzon Strait, J. Oceanogr., 61, 1017–1027, 2005.; Komorowski, J., Pawlak, Z., Polkowski, L., and Skowron, A.: Rough sets: A tutorial, in: Rough fuzzy hybridization: a new trend in decision-making, edited by: Pal, S. and Skowron, A., Singapore, Springer-Verlag, 3–93, 1999.; Kuo, N. J., Zheng, Q., and Ho, C. R.: Satellite observation of upwelling along the western coast of the South China Sea, Remote Sens. Environ., 74, 463–470, 2000.; Leung, Y. and Li, D.: Maximal consistent block technique for rule acquisition in incomplete information systems, Inf. Sci., 153, 85–106, 2003.; Li, L.: A review on mesoscale oceanographical phenomena in the South China Sea, J. Oceanogr. Taiwan, 21, 265–274, 2002 (in Chinese with English abstract).; Li, L. and Wu, B.: A Kuroshio loop in South China Sea?, J. Oceanogr. Taiwan, 8, 89–95, 1989 (in Chinese with English abstract).; Li, L., Nowlin Jr., W. D. and Su, J.: Anticyclonic rings from the Kuroshio in the South China Sea, Deep-Sea Res. Pt. I 45, 1469–1482, 1998.; Miao, D. and Li, D.: Rough Sets Theory Algorithms and Applications, TsingHua University Press, Beijing, 2008.; Lin, P., Wang, F., Chen, Y., and Tang, X.: Temporal and spatial variation characteristics on eddies in the South China Sea I. Statistical analyses, Acta Oceanol. Sinica, 29, 14–22, 2007.; Liu, Q., Jiang, X., Xie, S., and Liu, W.: A gap in the Indo-Pacific warm pool over the South China Sea in boreal winter: Seasonal development and interannual variability, J. Geophys. Res., 109, C07012, doi:10.1029/2003JC002179, 2004.; Metzger, E. J. and Hurlburt, H. E.: The nondeterministic nature of Kuroshio penetration and eddy shedding in the South Ch


Click To View

Additional Books

  • Variability of Water Mass Properties in ... (by )
  • Variability of Scaling Time Series in th... (by )
  • A Practical Scheme to Introduce Explicit... (by )
  • Black Sea Coastal Forecasting System : V... (by )
  • Deep Western Boundary Current Transport ... (by )
  • An Empirical Stochastic Model of Sea-sur... (by )
  • Toward a Multivariate Reanalysis of the ... (by )
  • Retroflection from Slanted Coastlines – ... (by )
  • An Improved Method for the Determination... (by )
  • Coastal Observing and Forecasting System... (by )
  • The Mediterranean is Becoming Saltier : ... (by )
  • Observed and Simulated Estimates of the ... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.