A noisy-input generalised additive model for relative sea-level change along the Atlantic coast of North America
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866911174570803200 |
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| author | Upton, Maeve Parnell, Andrew Kemp, Andrew Ashe, Erica McCarthy, Gerard Cahill, Niamh |
| author_facet | Upton, Maeve Parnell, Andrew Kemp, Andrew Ashe, Erica McCarthy, Gerard Cahill, Niamh |
| contents | We propose a Bayesian, noisy-input, spatial-temporal generalised additive model to examine regional relative sea-level (RSL) changes over time. The model provides probabilistic estimates of component drivers of regional RSL change via the combination of a univariate spline capturing a common regional signal over time, random slopes and intercepts capturing site-specific (local), long-term linear trends and a spatial-temporal spline capturing residual, non-linear, local variations. Proxy and instrumental records of RSL and corresponding measurement errors inform the model and a noisy-input method accounts for proxy temporal uncertainties. Results focus on the decomposition of RSL over the past 3000 years along the Atlantic coast of North America. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2301_09556 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A noisy-input generalised additive model for relative sea-level change along the Atlantic coast of North America Upton, Maeve Parnell, Andrew Kemp, Andrew Ashe, Erica McCarthy, Gerard Cahill, Niamh Applications Methodology We propose a Bayesian, noisy-input, spatial-temporal generalised additive model to examine regional relative sea-level (RSL) changes over time. The model provides probabilistic estimates of component drivers of regional RSL change via the combination of a univariate spline capturing a common regional signal over time, random slopes and intercepts capturing site-specific (local), long-term linear trends and a spatial-temporal spline capturing residual, non-linear, local variations. Proxy and instrumental records of RSL and corresponding measurement errors inform the model and a noisy-input method accounts for proxy temporal uncertainties. Results focus on the decomposition of RSL over the past 3000 years along the Atlantic coast of North America. |
| title | A noisy-input generalised additive model for relative sea-level change along the Atlantic coast of North America |
| topic | Applications Methodology |
| url | https://arxiv.org/abs/2301.09556 |