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Conference Paper: Inception of a global atlas of Holocene sea levels
Title | Inception of a global atlas of Holocene sea levels |
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Authors | |
Issue Date | 2019 |
Publisher | International Union for Quaternary Research (INQUA). |
Citation | 20th Congress of the International Union for Quaternary Research (INQUA), Dublin, Ireland, 25-31 July 2019 How to Cite? |
Abstract | Determining the rates, mechanisms and geographic variability of sea-level change is a priority science question for the next decade of ocean research. The HOLocene SEA-level variability (HOLSEA) working group is developing the first standardized global synthesis of Holocene relative sea-level that incorporates full consideration of vertical and temporal uncertainty for each sea-level index point, including uncertainties associated with the relationship of each indicator to past sea level and the methods used to date each indicator. HOLSEA aims to: (1) estimate the magnitudes and rates of global mean sea-level change during the Holocene; and (2) identify trends in spatial variability and decipher the processes responsible for geographic differences in relative sea-level change.
The global atlas includes over 12,000 sea-level index points and limiting data from a range of different indicators across seven continents from the Last Glacial Maximum to present. The global atlas will be made available in a special issue of Quaternary Science Reviews and archived on NOAA’s National Centers for Environmental Information (NCEI). The global atlas now includes sea-level data from:
1. Near-field regions (Atlantic Canada, Greenland, the British Isles, the Russian Arctic, Antarctica);
2. Intermediate-field regions (Pacific, Gulf, Atlantic and Caribbean coasts of North America, western Europe, the Mediterranean, New Zealand);
3. Far-field regions (Atlantic South America, South Africa, India, Sri Lanka, the Maldives, Southeast Asia, China, Australia).
Here we combine near-, intermediate-, and far-field data along a pole-to-pole transect (Greenland, North American Atlantic coast, Caribbean, South American Atlantic coast and Antarctica) to illustrate the advantages of applying a spatio-temporal empirical hierarchical statistical model to describe the spatial variability in relative sea level and its rates of change. By comparing these records across a transect that spans a range of ‘fingerprints’ from land-based ice sheets, we have the potential to isolate ice-sheet contributions to Holocene RSL changes |
Description | Poster Presentation - no. P-1061 |
Persistent Identifier | http://hdl.handle.net/10722/286547 |
DC Field | Value | Language |
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dc.contributor.author | Khan, NS | - |
dc.contributor.author | Ashe, E | - |
dc.contributor.author | Kopp, R | - |
dc.contributor.author | Horton, B | - |
dc.date.accessioned | 2020-08-31T07:05:21Z | - |
dc.date.available | 2020-08-31T07:05:21Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | 20th Congress of the International Union for Quaternary Research (INQUA), Dublin, Ireland, 25-31 July 2019 | - |
dc.identifier.uri | http://hdl.handle.net/10722/286547 | - |
dc.description | Poster Presentation - no. P-1061 | - |
dc.description.abstract | Determining the rates, mechanisms and geographic variability of sea-level change is a priority science question for the next decade of ocean research. The HOLocene SEA-level variability (HOLSEA) working group is developing the first standardized global synthesis of Holocene relative sea-level that incorporates full consideration of vertical and temporal uncertainty for each sea-level index point, including uncertainties associated with the relationship of each indicator to past sea level and the methods used to date each indicator. HOLSEA aims to: (1) estimate the magnitudes and rates of global mean sea-level change during the Holocene; and (2) identify trends in spatial variability and decipher the processes responsible for geographic differences in relative sea-level change. The global atlas includes over 12,000 sea-level index points and limiting data from a range of different indicators across seven continents from the Last Glacial Maximum to present. The global atlas will be made available in a special issue of Quaternary Science Reviews and archived on NOAA’s National Centers for Environmental Information (NCEI). The global atlas now includes sea-level data from: 1. Near-field regions (Atlantic Canada, Greenland, the British Isles, the Russian Arctic, Antarctica); 2. Intermediate-field regions (Pacific, Gulf, Atlantic and Caribbean coasts of North America, western Europe, the Mediterranean, New Zealand); 3. Far-field regions (Atlantic South America, South Africa, India, Sri Lanka, the Maldives, Southeast Asia, China, Australia). Here we combine near-, intermediate-, and far-field data along a pole-to-pole transect (Greenland, North American Atlantic coast, Caribbean, South American Atlantic coast and Antarctica) to illustrate the advantages of applying a spatio-temporal empirical hierarchical statistical model to describe the spatial variability in relative sea level and its rates of change. By comparing these records across a transect that spans a range of ‘fingerprints’ from land-based ice sheets, we have the potential to isolate ice-sheet contributions to Holocene RSL changes | - |
dc.language | eng | - |
dc.publisher | International Union for Quaternary Research (INQUA). | - |
dc.relation.ispartof | 20th Congress of the International Union for Quaternary Research (INQUA), 2019 | - |
dc.title | Inception of a global atlas of Holocene sea levels | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Khan, NS: nskhan@hku.hk | - |
dc.identifier.authority | Khan, NS=rp02561 | - |
dc.identifier.hkuros | 313273 | - |