Dynamics of coral reef models in the presence of parrotfish

Haniyeh Fattahpour; Hamid R.Z. Zangeneh; Hao Wang

doi:10.1111/nrm.12202

Dynamics of coral reef models in the presence of parrotfish

Natural Resource Modeling ◽

10.1111/nrm.12202 ◽

2018 ◽

Vol 32 (2) ◽

pp. e12202 ◽

Cited By ~ 1

Author(s):

Haniyeh Fattahpour ◽

Hamid R.Z. Zangeneh ◽

Hao Wang

Keyword(s):

Coral Reef ◽

Reef Models

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High-resolution topography of the uplifting Huon Peninsula (Papua New Guinea) reveals high interstadial sea-levels over the past ~400 ka

10.5194/egusphere-egu21-15164 ◽

2021 ◽

Author(s):

Gino de Gelder ◽

Laurent Husson ◽

Anne-Morwenn Pastier ◽

Denovan Chauveau ◽

David Fernández-Blanco ◽

...

Keyword(s):

Coral Reef ◽

Sea Level ◽

Papua New Guinea ◽

Large Scale ◽

New Guinea ◽

Sea Levels ◽

Level Curves ◽

The Past ◽

Reef Models ◽

Global Mean Sea Level

<p>Quaternary sea-level curves provide crucial insights to constrain tectonic and climatic processes, but require calibration with geological constraints that are particularly scarce for cold periods prior to the last glacial-interglacial cycle. To derive such constraints, we re-visit the Huon Peninsula in Papua New Guinea, which is a classic coral reef terrace (CRT) site that was used for the earliest relative sea-level (RSL) curves. We use digital surface models calculated from 0.5m Pleiades satellite imagery to improve RSL constraints, and unlike previous studies, we find that large-scale tilting of the terrace sequence is generally N-directed. This implies that RSL estimates are several meters higher than previously thought for most highstands over the past ~125 ka. We use the large-scale geometry of the terrace sequence to estimate sea-level highstands up to ~400 ka, and our results suggest that global mean sea-level curves derived from oxygen isotopes consistently underestimate sea-level during the relatively cold Marine Isotope Stages 3, 5a, 5c, 6, 9a and 11a, up to ~10-20 m. We use coral reef models to show that our age interpretation is consistent with the overall terrace sequence morphology, and fits between models and topography improve when adjusting sea-level highstands according to our findings.</p>

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