All Outputs (75)

GEORGIA: A Graph Neural Network Based EmulatOR for Glacial Isostatic Adjustment (2023)
Journal Article

Glacial isostatic adjustment (GIA) modeling is not only useful for understanding past relative sea-level change but also for projecting future sea-level change due to ongoing land deformation. However, GIA model predictions are subject to a range of... Read More about GEORGIA: A Graph Neural Network Based EmulatOR for Glacial Isostatic Adjustment.

Antarctic ice sheet paleo-constraint database (2023)
Journal Article

We present a database of observational constraints on past Antarctic Ice Sheet changes during the last glacial cycle intended to consolidate the observations that represent our understanding of past Antarctic changes, for state-space estimation, and... Read More about Antarctic ice sheet paleo-constraint database.

Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 (2023)
Journal Article

Relative sea level response to mixed carbonate-siliciclastic sediment loading along the Great Barrier Reef margin (2023)
Journal Article

The continental shelf along northeastern Australia is the world’s largest mixed carbonate-siliciclastic passive margin and the location of the Great Barrier Reef (GBR). Following sea-level transgression during the last deglaciation, extensive sedimen... Read More about Relative sea level response to mixed carbonate-siliciclastic sediment loading along the Great Barrier Reef margin.

An ensemble of Antarctic deglacial simulations constrained by geological observations (2022)
Journal Article

The Antarctic ice sheet has the potential to make a significant contribution to future sea-level rise. Understanding this potential and making projections of future ice sheet mass change requires use of numerical models. Confidence in model projectio... Read More about An ensemble of Antarctic deglacial simulations constrained by geological observations.

Reassessment of hydrate destabilization mechanisms offshore west Svalbard confirms link to recent ocean warming (2022)
Journal Article

The stability of methane hydrates at the feather edge of hydrate stability on the upper continental slope (UCS) is prone to ocean warming and relative sea-level (RSL) change. West of Svalbard, methane seeps on the UCS were initially proposed to resul... Read More about Reassessment of hydrate destabilization mechanisms offshore west Svalbard confirms link to recent ocean warming.

Response of the East Antarctic Sheet to Past and Future Climate Change (2022)
Journal Article

The East Antarctic Ice Sheet contains the vast majority of Earth’s glacier ice (about 52 metres sea-level equivalent), but is often viewed as less vulnerable to global warming than the West Antarctic or Greenland ice sheets. However, some regions of... Read More about Response of the East Antarctic Sheet to Past and Future Climate Change.

Stability of the Antarctic Ice Sheet during the pre-Industrial Holocene (2022)
Journal Article

The rate and magnitude of the Antarctic Ice Sheet (AIS) contribution to global sea-level rise beyond 2100 CE remains highly uncertain. Past changes of the AIS, however, offer opportunities to understand contemporary and future ice sheet behaviour. In... Read More about Stability of the Antarctic Ice Sheet during the pre-Industrial Holocene.

Relative sea-level data preclude major late Holocene ice-mass change in Pine Island Bay (2022)
Journal Article

The rapidly retreating Thwaites and Pine Island glaciers together dominate present-day ice loss from the West Antarctic Ice Sheet and are implicated in runaway deglaciation scenarios. Knowledge of whether these glaciers were substantially smaller in... Read More about Relative sea-level data preclude major late Holocene ice-mass change in Pine Island Bay.

GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula (2022)
Journal Article

In Antarctica, Global Positioning System (GPS) vertical time series exhibit non-linear signals over a wide range of temporal scales. To explain these non-linearities, a number of hypotheses have been proposed, among them the short-term rapid solid Ea... Read More about GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula.

A GNSS velocity field for crustal deformation studies: The influence of glacial isostatic adjustment on plate motion models (2022)
Journal Article

The two main causes of global-scale secular deformation of the Earth are tectonic plate motion and Glacial Isostatic Adjustment (GIA). We create a bespoke global 3D GNSS surface velocity field “NCL20” to investigate tectonic plate motion and the effe... Read More about A GNSS velocity field for crustal deformation studies: The influence of glacial isostatic adjustment on plate motion models.

NCL20: A global GNSS velocity field for estimating tectonic plate motion and testing GIA models (2021)
Data

LM17.3 - a global vertical land motion model of glacial isostatic adjustment. (2021)
Data

Additional models (W12, Whitehouse et al. 2012, and IJ05_R2, Ivins et al. 2013, for Antarctica; ANU-ICE, Lambeck et al. 2017, and NAIce, Gowan et al. 2016, for North America) were tested in the development of the model but not used in the end. Little... Read More about LM17.3 - a global vertical land motion model of glacial isostatic adjustment..

Contrasting Response of West and East Antarctic Ice Sheets to Glacial Isostatic Adjustment (2021)
Journal Article

The Antarctic ice sheet (AIS) lies on a solid Earth that displays large spatial variations in rheological properties, with a thin lithosphere and low-viscosity upper mantle (weak Earth structure) beneath West Antarctica and an opposing structure bene... Read More about Contrasting Response of West and East Antarctic Ice Sheets to Glacial Isostatic Adjustment.

Comparing Glacial-Geological Evidence and Model Simulations 1 of Ice Sheet Change since the Last Glacial Period in the Amundsen Sea Sector of Antarctica (2021)
Journal Article

Since the Last Glacial Maximum ∼20,000 years ago, the Antarctic Ice Sheet has undergone extensive changes, resulting in a much smaller present-day configuration. Improving our understanding of basic physical processes that played important roles duri... Read More about Comparing Glacial-Geological Evidence and Model Simulations 1 of Ice Sheet Change since the Last Glacial Period in the Amundsen Sea Sector of Antarctica.

A reconciled solution of Meltwater Pulse 1A sources using sea-level fingerprinting (2021)
Journal Article

The most rapid global sea-level rise event of the last deglaciation, Meltwater Pulse 1A (MWP-1A), occurred ∼14,650 years ago. Considerable uncertainty regarding the sources of meltwater limits understanding of the relationship between MWP-1A and the... Read More about A reconciled solution of Meltwater Pulse 1A sources using sea-level fingerprinting.

Glacial Isostatic Adjustment (2020)
Book Chapter

Deglaciation of Pope Glacier implies widespread early Holocene ice sheet thinning in the Amundsen Sea sector of Antarctica (2020)
Journal Article

The Amundsen Sea sector of the Antarctic ice sheet presently dominates the contribution from Antarctica to sea level rise. Several large ice streams that currently drain the sector have experienced rapid flow acceleration, grounding line retreat and... Read More about Deglaciation of Pope Glacier implies widespread early Holocene ice sheet thinning in the Amundsen Sea sector of Antarctica.

Holocene relative sea-level change along the tectonically active Chilean coast (2020)
Journal Article

We present a comprehensive relative sea-level (RSL) database for north, central, and south-central Chile (18.5°S – 43.6°S) using a consistent, systematic, and internationally comparable approach. Despite its latitudinal extent, this coastline has rec... Read More about Holocene relative sea-level change along the tectonically active Chilean coast.

Mass balance of the Greenland Ice Sheet from 1992 to 2018 (2019)
Journal Article

In recent decades, the Greenland Ice Sheet has been a major contributor to global sea-level rise1,2, and it is expected to be so in the future3. Although increases in glacier flow4–6 and surface melting7–9 have been driven by oceanic10–12 and atmosph... Read More about Mass balance of the Greenland Ice Sheet from 1992 to 2018.