dc.contributor.author | Naseef, T.M. | |
dc.contributor.author | SanilKumar, V. | |
dc.contributor.author | Joseph, J. | |
dc.contributor.author | Jena, B.K. | |
dc.date.accessioned | 2019-12-31 | |
dc.date.accessioned | 2020-02-04T09:38:25Z | |
dc.date.available | 2019-07-15 | |
dc.date.available | 2020-02-04T09:38:25Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Natural Hazards, vol.97(3); 2019; 1231-1251 | |
dc.identifier.uri | https://doi.org/10.1007/s11069-019-03701-5 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/8288 | |
dc.description.abstract | Information about waves with specific return period in a region is essential for the safe design of marine facilities. In this study, significant wave height for 50-year return period is estimated using generalized extreme value (GEV) distribution and generalized Pareto distribution (GPD) based on the 15-year wave hindcast data. In order to realize the dependency of nature of the time series data on return value estimation, three types of data series: daily maxima (DM), monthly maxima (MM) and annual maxima (AM) are considered for GEV, whereas for GPD, threshold values are estimated from the parent data set at 6�h and the DM series. The GEV distribution shows that AM predicts higher significant wave height followed by MM and then DM. The large number (~ 50%) of smaller wave height value (< 1�m) in the DM leads to smaller estimate in wave height for 50-year return period for DM series compared to other data series. Among the locations studied, the maximum value of the significant wave height with 50-year return period by GEV with AM data series is 7.15�m in the western shelf seas and is 7.36�m for the eastern shelf seas, whereas the values based on GPD with peak over threshold are 6.94 and 7.42�m, respectively. Case studies are also done to know the influence of tropical cyclone on the estimated 50-year return value. | |
dc.language | en | |
dc.relation.isreferencedby | SCI | |
dc.rights | Only the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations | |
dc.title | Uncertainties of the 50-year wave height estimation using generalized extreme value and generalized Pareto distributions in the Indian Shelf seas | |
dc.type | Journal Article | |