Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic
We analyzed the spatial pattern of wave extremes in the South Atlantic Ocean by using multiple altimeter platforms spanning the period 1993–2015. Unlike the traditional approach adopted by previous studies, consisting of computing the monthly mean, median or maximum values inside a bin of certain si...
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Copernicus Publications
2018
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Online Access: | https://doi.org/10.5194/os-14-911-2018 https://www.ocean-sci.net/14/911/2018/os-14-911-2018.pdf https://doaj.org/article/cf696e3a1fea4321bda0f1df733593e8 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:cf696e3a1fea4321bda0f1df733593e8 2023-05-15T18:21:04+02:00 Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic J. Salcedo-Castro N. P. da Silva R. de Camargo E. Marone H. H. Sepúlveda 2018-08-01 https://doi.org/10.5194/os-14-911-2018 https://www.ocean-sci.net/14/911/2018/os-14-911-2018.pdf https://doaj.org/article/cf696e3a1fea4321bda0f1df733593e8 en eng Copernicus Publications doi:10.5194/os-14-911-2018 1812-0784 1812-0792 https://www.ocean-sci.net/14/911/2018/os-14-911-2018.pdf https://doaj.org/article/cf696e3a1fea4321bda0f1df733593e8 undefined Ocean Science, Vol 14, Pp 911-921 (2018) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/os-14-911-2018 2023-01-22T17:39:02Z We analyzed the spatial pattern of wave extremes in the South Atlantic Ocean by using multiple altimeter platforms spanning the period 1993–2015. Unlike the traditional approach adopted by previous studies, consisting of computing the monthly mean, median or maximum values inside a bin of certain size, we tackled the problem with a different procedure in order to capture more information from short-term events. All satellite tracks occurring during a 2-day temporal window were gathered in the whole area and then gridded data were generated onto a mesh size of 2° × 2° through optimal interpolation. The peaks over threshold (POT) method was applied, along with the generalized Pareto distribution (GPD). The results showed a spatial distribution comparable to previous studies and, additionally, this method allowed for capturing more information on shorter timescales without compromising spatial coverage. A comparison with buoy observations demonstrated that this approach improves the representativeness of short-term events in an extreme events analysis. Article in Journal/Newspaper South Atlantic Ocean Unknown Ocean Science 14 4 911 921 |
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language |
English |
topic |
geo envir |
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geo envir J. Salcedo-Castro N. P. da Silva R. de Camargo E. Marone H. H. Sepúlveda Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic |
topic_facet |
geo envir |
description |
We analyzed the spatial pattern of wave extremes in the South Atlantic Ocean by using multiple altimeter platforms spanning the period 1993–2015. Unlike the traditional approach adopted by previous studies, consisting of computing the monthly mean, median or maximum values inside a bin of certain size, we tackled the problem with a different procedure in order to capture more information from short-term events. All satellite tracks occurring during a 2-day temporal window were gathered in the whole area and then gridded data were generated onto a mesh size of 2° × 2° through optimal interpolation. The peaks over threshold (POT) method was applied, along with the generalized Pareto distribution (GPD). The results showed a spatial distribution comparable to previous studies and, additionally, this method allowed for capturing more information on shorter timescales without compromising spatial coverage. A comparison with buoy observations demonstrated that this approach improves the representativeness of short-term events in an extreme events analysis. |
format |
Article in Journal/Newspaper |
author |
J. Salcedo-Castro N. P. da Silva R. de Camargo E. Marone H. H. Sepúlveda |
author_facet |
J. Salcedo-Castro N. P. da Silva R. de Camargo E. Marone H. H. Sepúlveda |
author_sort |
J. Salcedo-Castro |
title |
Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic |
title_short |
Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic |
title_full |
Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic |
title_fullStr |
Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic |
title_full_unstemmed |
Estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the South Atlantic |
title_sort |
estimation of extreme wave height return periods from short-term interpolation of multi-mission satellite data: application to the south atlantic |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/os-14-911-2018 https://www.ocean-sci.net/14/911/2018/os-14-911-2018.pdf https://doaj.org/article/cf696e3a1fea4321bda0f1df733593e8 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Ocean Science, Vol 14, Pp 911-921 (2018) |
op_relation |
doi:10.5194/os-14-911-2018 1812-0784 1812-0792 https://www.ocean-sci.net/14/911/2018/os-14-911-2018.pdf https://doaj.org/article/cf696e3a1fea4321bda0f1df733593e8 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/os-14-911-2018 |
container_title |
Ocean Science |
container_volume |
14 |
container_issue |
4 |
container_start_page |
911 |
op_container_end_page |
921 |
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1766200147159547904 |