ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes
Abstract Here, we describe a new national tide gauge‐based sea level dataset for monitoring sea level changes around Australia, and the novel homogenization methodology used to develop it. Homogenization is a two‐step process that involves the detection of jumps or steps in the data (inhomogeneities...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-11-01
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| Series: | Geoscience Data Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/gdj3.136 |
| _version_ | 1811304898112782336 |
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| author | Ben S. Hague David A. Jones Blair Trewin Doerte Jakob Bradley F. Murphy David J. Martin Karl Braganza |
| author_facet | Ben S. Hague David A. Jones Blair Trewin Doerte Jakob Bradley F. Murphy David J. Martin Karl Braganza |
| author_sort | Ben S. Hague |
| collection | DOAJ |
| description | Abstract Here, we describe a new national tide gauge‐based sea level dataset for monitoring sea level changes around Australia, and the novel homogenization methodology used to develop it. Homogenization is a two‐step process that involves the detection of jumps or steps in the data (inhomogeneities) followed by a correction applied to remove the change. This new dataset is called the Australian National Collection of Homogenized Observations of Relative Sea Level (ANCHORS). ANCHORS provides coastal sea levels at hourly resolution with homogenization performed on annual means. ANCHORS is intended to be a national tide gauge‐based sea level dataset to monitor changes in mean sea level and resultant coastal flood frequency changes around Australia. Whilst sea levels are rising around Australia in response to global mean sea level changes, coastal water levels represent a notable gap in the suite of in situ high‐quality datasets available for researchers, governments and industry. Tide gauge datasets are well suited to impact‐based assessments of changes in flood frequency, duration and risk. In this regard, ANCHORS will sit alongside existing satellite‐ and numerical modelling‐based sea level datasets to provide enhanced insights into the physical impacts of sea level rise on Australian coastlines. We have adapted established homogenization techniques to develop a national collection of homogenous long tide gauge records. The dataset comprises 38 tide gauge records from around Australia, varying in length from 34 to 123 years, with an average of 57 years. Finally, we discuss limitations and potential applications for ANCHORS and how these have informed the design of this coastal sea level dataset. |
| first_indexed | 2024-04-13T08:15:35Z |
| format | Article |
| id | doaj.art-5b3c021e4d124b41930fef908bf0e878 |
| institution | Directory Open Access Journal |
| issn | 2049-6060 |
| language | English |
| last_indexed | 2024-04-13T08:15:35Z |
| publishDate | 2022-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geoscience Data Journal |
| spelling | doaj.art-5b3c021e4d124b41930fef908bf0e8782022-12-22T02:54:47ZengWileyGeoscience Data Journal2049-60602022-11-019225627210.1002/gdj3.136ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changesBen S. Hague0David A. Jones1Blair Trewin2Doerte Jakob3Bradley F. Murphy4David J. Martin5Karl Braganza6Australian Bureau of Meteorology Melbourne Victoria AustraliaAustralian Bureau of Meteorology Melbourne Victoria AustraliaAustralian Bureau of Meteorology Melbourne Victoria AustraliaAustralian Bureau of Meteorology Melbourne Victoria AustraliaAustralian Bureau of Meteorology Melbourne Victoria AustraliaAustralian Bureau of Meteorology Melbourne Victoria AustraliaAustralian Bureau of Meteorology Melbourne Victoria AustraliaAbstract Here, we describe a new national tide gauge‐based sea level dataset for monitoring sea level changes around Australia, and the novel homogenization methodology used to develop it. Homogenization is a two‐step process that involves the detection of jumps or steps in the data (inhomogeneities) followed by a correction applied to remove the change. This new dataset is called the Australian National Collection of Homogenized Observations of Relative Sea Level (ANCHORS). ANCHORS provides coastal sea levels at hourly resolution with homogenization performed on annual means. ANCHORS is intended to be a national tide gauge‐based sea level dataset to monitor changes in mean sea level and resultant coastal flood frequency changes around Australia. Whilst sea levels are rising around Australia in response to global mean sea level changes, coastal water levels represent a notable gap in the suite of in situ high‐quality datasets available for researchers, governments and industry. Tide gauge datasets are well suited to impact‐based assessments of changes in flood frequency, duration and risk. In this regard, ANCHORS will sit alongside existing satellite‐ and numerical modelling‐based sea level datasets to provide enhanced insights into the physical impacts of sea level rise on Australian coastlines. We have adapted established homogenization techniques to develop a national collection of homogenous long tide gauge records. The dataset comprises 38 tide gauge records from around Australia, varying in length from 34 to 123 years, with an average of 57 years. Finally, we discuss limitations and potential applications for ANCHORS and how these have informed the design of this coastal sea level dataset.https://doi.org/10.1002/gdj3.136ANCHORScoastal flood risk assessmenthomogenizationsea level risetide gauge data |
| spellingShingle | Ben S. Hague David A. Jones Blair Trewin Doerte Jakob Bradley F. Murphy David J. Martin Karl Braganza ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes Geoscience Data Journal ANCHORS coastal flood risk assessment homogenization sea level rise tide gauge data |
| title | ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes |
| title_full | ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes |
| title_fullStr | ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes |
| title_full_unstemmed | ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes |
| title_short | ANCHORS: A multi‐decadal tide gauge dataset to monitor Australian relative sea level changes |
| title_sort | anchors a multi decadal tide gauge dataset to monitor australian relative sea level changes |
| topic | ANCHORS coastal flood risk assessment homogenization sea level rise tide gauge data |
| url | https://doi.org/10.1002/gdj3.136 |
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