Estimating return values of significant sea wave heights in Colombo, Sri Lanka

Shajitha, S.H; Perera, K

dc.contributor.author	Shajitha, S.H
dc.contributor.author	Perera, K
dc.date.accessioned	2016-03-18T04:36:14Z
dc.date.available	2016-03-18T04:36:14Z
dc.date.issued	2014-08-02
dc.identifier.citation	Proceedings of 4th International Symposium 2015 on " Emerging Trends and Challenges on Sustainable Development”, p. 75
dc.identifier.isbn	978-955-627-053-2
dc.identifier.uri	http://ir.lib.seu.ac.lk/handle/123456789/1453
dc.description.abstract	In coastal science and offshore engineering estimating the return values of significant extreme sea wave heights plays a vital role. This paper discusses two methods, Block Maxima (BM) approach and Peak-Over- Threshold (POT) method to estimate the 50 and 100 year return levels of extreme sea wave heights in Colombo. Generalized Extreme Value (GEV) distribution and Generalized Pareto (GP) distribution were fitted to the BM data and POT data respectively. Parameters of GEV and GPD were estimated with Maximum Likelihood estimation method. Gumbel distribution fitted well with the BM approach and GP distribution fitted well with the POT approach.BM method and POT method gives much more comparable results on estimating return values.	en_US
dc.language.iso	en_US	en_US
dc.publisher	South Eastern University of Sri Lanka, University Park, Oluvil #32360, Sri Lanka	en_US
dc.subject	Return level	en_US
dc.subject	Block maxima	en_US
dc.subject	Threshold value	en_US
dc.subject	Generalized extreme value distribution	en_US
dc.subject	Generalized pareto distribution	en_US
dc.title	Estimating return values of significant sea wave heights in Colombo, Sri Lanka	en_US
dc.type	Conference abstract	en_US