Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data
A non-stationary extreme value analysis of 41 years (1979–2019) of global ERA5 (European Centre for Medium-Range Weather Forecasts Reanalysis) significant wave height data is undertaken to investigate trends in the values of 100-year significant wave height, <inline-formula><math display=&q...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/8/12/1015 |
| _version_ | 1827700298377854976 |
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| author | Alicia Takbash Ian R. Young |
| author_facet | Alicia Takbash Ian R. Young |
| author_sort | Alicia Takbash |
| collection | DOAJ |
| description | A non-stationary extreme value analysis of 41 years (1979–2019) of global ERA5 (European Centre for Medium-Range Weather Forecasts Reanalysis) significant wave height data is undertaken to investigate trends in the values of 100-year significant wave height, <inline-formula><math display="inline"><semantics><mrow><msubsup><mi>H</mi><mi>s</mi><mrow><mn>100</mn></mrow></msubsup></mrow></semantics></math></inline-formula>. The analysis shows that there has been a statistically significant increase in the value of <inline-formula><math display="inline"><semantics><mrow><msubsup><mi>H</mi><mi>s</mi><mrow><mn>100</mn></mrow></msubsup></mrow></semantics></math></inline-formula> over large regions of the Southern Hemisphere. There have also been smaller decreases in <inline-formula><math display="inline"><semantics><mrow><msubsup><mi>H</mi><mi>s</mi><mrow><mn>100</mn></mrow></msubsup></mrow></semantics></math></inline-formula> in the Northern Hemisphere, although the related trends are generally not statistically significant. The increases in the Southern Hemisphere are a result of an increase in either the frequency or intensity of winter storms, particularly in the Southern Ocean. |
| first_indexed | 2024-03-10T14:09:19Z |
| format | Article |
| id | doaj.art-ee200b3fcf3343a9abd12b1db0acf863 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T14:09:19Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-ee200b3fcf3343a9abd12b1db0acf8632023-11-21T00:23:34ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-12-01812101510.3390/jmse8121015Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis DataAlicia Takbash0Ian R. Young1Department of Infrastructure Engineering, The University of Melbourne, Melbourne, VIC 3010, AustraliaDepartment of Infrastructure Engineering, The University of Melbourne, Melbourne, VIC 3010, AustraliaA non-stationary extreme value analysis of 41 years (1979–2019) of global ERA5 (European Centre for Medium-Range Weather Forecasts Reanalysis) significant wave height data is undertaken to investigate trends in the values of 100-year significant wave height, <inline-formula><math display="inline"><semantics><mrow><msubsup><mi>H</mi><mi>s</mi><mrow><mn>100</mn></mrow></msubsup></mrow></semantics></math></inline-formula>. The analysis shows that there has been a statistically significant increase in the value of <inline-formula><math display="inline"><semantics><mrow><msubsup><mi>H</mi><mi>s</mi><mrow><mn>100</mn></mrow></msubsup></mrow></semantics></math></inline-formula> over large regions of the Southern Hemisphere. There have also been smaller decreases in <inline-formula><math display="inline"><semantics><mrow><msubsup><mi>H</mi><mi>s</mi><mrow><mn>100</mn></mrow></msubsup></mrow></semantics></math></inline-formula> in the Northern Hemisphere, although the related trends are generally not statistically significant. The increases in the Southern Hemisphere are a result of an increase in either the frequency or intensity of winter storms, particularly in the Southern Ocean.https://www.mdpi.com/2077-1312/8/12/1015extreme wave heightextreme value analysiswave climatewave modelreanalysis |
| spellingShingle | Alicia Takbash Ian R. Young Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data Journal of Marine Science and Engineering extreme wave height extreme value analysis wave climate wave model reanalysis |
| title | Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data |
| title_full | Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data |
| title_fullStr | Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data |
| title_full_unstemmed | Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data |
| title_short | Long-Term and Seasonal Trends in Global Wave Height Extremes Derived from ERA-5 Reanalysis Data |
| title_sort | long term and seasonal trends in global wave height extremes derived from era 5 reanalysis data |
| topic | extreme wave height extreme value analysis wave climate wave model reanalysis |
| url | https://www.mdpi.com/2077-1312/8/12/1015 |
| work_keys_str_mv | AT aliciatakbash longtermandseasonaltrendsinglobalwaveheightextremesderivedfromera5reanalysisdata AT ianryoung longtermandseasonaltrendsinglobalwaveheightextremesderivedfromera5reanalysisdata |