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 8, Issue 3 (14/06/2011)

By Du, Y.

Click here to view

Book Id: WPLBN0003988230
Format Type: PDF Article :
File Size: Pages 40
Reproduction Date: 2015

Title: Extraction of Spatial-temporal Rules from Mesoscale Eddies in the South China Sea Based on Rough Set Theory : Volume 8, Issue 3 (14/06/2011)  
Author: Du, Y.
Volume: Vol. 8, Issue 3
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

He, Z., Fan, X., Zhou, C., Wang, D., Su, F., Du, Y., & Mao, H. (2011). Extraction of Spatial-temporal Rules from Mesoscale Eddies in the South China Sea Based on Rough Set Theory : Volume 8, Issue 3 (14/06/2011). Retrieved from http://www.ebooklibrary.org/


Description
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. Spatial-temporal rules of typical states in the SCS are extracted as three decision attributes, which then are confirmed by the previous works. The results demonstrate that this approach is effective in extracting spatial-temporal rules from typical mesoscale-eddy states, and therefore provides a powerful approach to forecasts in the future. 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-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 future study.

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

Excerpt
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(4), 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(4), 51–59, 2005.; Fayyad, U. M. and Irani, K. B.: On the handling of continuous-valued attributes in decision tree generation, Mach. Learn., 8(1), 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. Chambery, France: Morgan Kauffman, 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(2), 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(15), 2239–2242, 1999.; Yasdi, R.: Combining rough sets learning and neural learning: method to deal with uncertain and imprecise information, Neuralcomputing, 7(1), 61–84, 1996.; 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(6), 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(6), 1017–1027, 2005.; Komorowski, J., Pawlak, Z., Polkowski, L., and Skowron, A.: Rough sets: A tutorial. Rough fuzzy hybridization: a new trend in decision-making, edited by: Pal, S. and Skowron, A., Singapore: Springer-Vela 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(1), 85–106, 2003.; Li, L.: A review on mesoscale oceanographical phenomena in the South China Sea, J. Oceanogr. Taiwan, 21(2), 562, 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. I, 45, 1469–1482, 1998.; 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(3), 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 Hurlb

 

Click To View

Additional Books


  • Analysis of the Circulation and Shelf-sl... (by )
  • Evaluating Two Numerical Advection Schem... (by )
  • Numerical Simulations of Spreading of th... (by )
  • Absolute Salinity, ''Density Salinity'' ... (by )
  • Water Mass Transformation in the North A... (by )
  • Medargo: a Drifting Profiler Program in ... (by )
  • Atlantic Meridional Ocean Heat Transport... (by )
  • Upper Layer Current Variability in the C... (by )
  • Adjustment of the Basin-scale Circulatio... (by )
  • Enhancing Temporal Correlations in Eof E... (by )
  • The Link Between the Barents Sea and Ens... (by )
  • Corrigendum to Spectral Studies of Ocean... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook 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.