Peter E. D. Davis
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View article: Observations of turbulent mixing in the Dotson Ice Shelf cavity
Observations of turbulent mixing in the Dotson Ice Shelf cavity Open
Dotson Ice Shelf (DIS) is located in the Amundsen Sea sector of Antarctica, an area of rapid glacial mass loss due to ocean-driven basal melting. Here, warm Circumpolar Deep Water is transported onto the continental shelf and can access ic…
View article: The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series
The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series Open
Continuous moored time series of temperature, salinity, pressure and current speed and direction are of great importance for understanding the continental shelf and under-ice-shelf dynamics and thermodynamics that govern water mass transfo…
View article: Thwaites Eastern Ice Shelf cavity observations reveal multiyear sea ice dynamics and deepwater warming in Pine Island Bay, West Antarctica
Thwaites Eastern Ice Shelf cavity observations reveal multiyear sea ice dynamics and deepwater warming in Pine Island Bay, West Antarctica Open
Pine Island Bay (PIB), situated in the Amundsen Sea, is renowned for its retreating ice shelves and highly variable sea ice. While brine rejection from sea ice formation and glacial meltwater influence seawater properties, the downstream i…
View article: Thwaites Eastern Ice Shelf Cavity Observations Reveal Multi-year Sea Ice Dynamics and Deep-Water Warming in Pine Island Bay, West Antarctica
Thwaites Eastern Ice Shelf Cavity Observations Reveal Multi-year Sea Ice Dynamics and Deep-Water Warming in Pine Island Bay, West Antarctica Open
Pine Island Bay, situated in the Amundsen Sea, is renowned for its retreating ice shelves and sea ice variability. Brine rejection from sea ice formation and glacial meltwater exported from ice-shelf cavities impact seawater density and th…
View article: The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series
The OCEAN ICE mooring compilation: a standardised, pan-Antarctic database of ocean hydrography and current time series Open
Continuous moored time series of temperature, salinity, pressure and current speed and direction are of great importance for understanding the continental shelf and under-ice-shelf dynamics and thermodynamics that govern water mass transfo…
View article: Lateral Fluxes Drive Basal Melting Beneath Thwaites Eastern Ice Shelf, West Antarctica
Lateral Fluxes Drive Basal Melting Beneath Thwaites Eastern Ice Shelf, West Antarctica Open
Thwaites Glacier is one of the fastest‐changing ice‐ocean systems in Antarctica. Basal melting beneath Thwaites' floating ice shelf, especially around pinning points and at the grounding line, sets the rate of ice loss and Thwaites' contri…
View article: Swirls and scoops: Ice base melt revealed by multibeam imagery of an Antarctic ice shelf
Swirls and scoops: Ice base melt revealed by multibeam imagery of an Antarctic ice shelf Open
Knowledge gaps about how the ocean melts Antarctica’s ice shelves, borne from a lack of observations, lead to large uncertainties in sea level predictions. Using high-resolution maps of the underside of Dotson Ice Shelf, West Antarctica, w…
View article: Water mass formation and export from the Filchner-Ronne Ice Shelf
Water mass formation and export from the Filchner-Ronne Ice Shelf Open
The Filchner-Ronne-Ice Shelf (FRIS) is the earth’s largest ice shelf by volume and its cavity a crucial part of the southern Weddell Sea ocean circulation. In mid-2017, the Filchner Ice Shelf (FIS) cavity experienced a shift towards …
View article: Direct observations of coupled ice-ocean interactions within a basal terrace beneath Thwaites Eastern Ice Shelf
Direct observations of coupled ice-ocean interactions within a basal terrace beneath Thwaites Eastern Ice Shelf Open
At present, considerable uncertainty surrounds the details of how Earth’s ice sheets interact with the surrounding ocean. This inhibits the reliability of future sea level rise projections from ice sheet models and highlights a need …
View article: Ice Shelf Water Structure Beneath the Larsen C Ice Shelf in Antarctica
Ice Shelf Water Structure Beneath the Larsen C Ice Shelf in Antarctica Open
Understanding ice shelf water (ISW) structure is crucial for studying the basal melting of ice shelves. In this study, we performed large‐eddy simulation experiments to assess ISW structure and basal melt patterns under different current v…
View article: Publisher Correction: Heterogeneous melting near the Thwaites Glacier grounding line
Publisher Correction: Heterogeneous melting near the Thwaites Glacier grounding line Open
View article: Heterogeneous melting near the Thwaites Glacier grounding line
Heterogeneous melting near the Thwaites Glacier grounding line Open
View article: Suppressed basal melting in the eastern Thwaites Glacier grounding zone
Suppressed basal melting in the eastern Thwaites Glacier grounding zone Open
Thwaites Glacier is one of the fastest-changing ice–ocean systems in Antarctica 1–3 . Much of the ice sheet within the catchment of Thwaites Glacier is grounded below sea level on bedrock that deepens inland 4 , making it susceptible to ra…
View article: Heterogeneous melting near the Thwaites Glacier grounding line
Heterogeneous melting near the Thwaites Glacier grounding line Open
Contained are the processing, figure plotting, and example file picking scripts for the Icefin data presented in the Nature article entitled "Heterogeneous melting near the Thwaites Glacier grounding line." The scripts are written in MATLA…
View article: Observations of Modified Warm Deep Water Beneath Ronne Ice Shelf, Antarctica, From an Autonomous Underwater Vehicle
Observations of Modified Warm Deep Water Beneath Ronne Ice Shelf, Antarctica, From an Autonomous Underwater Vehicle Open
Filchner‐Ronne Ice Shelf (FRIS) is the world's largest ice shelf by volume. It helps regulate Antarctica's contribution to global sea level rise, and water mass transformations within the sub‐ice‐shelf cavity produce globally important den…
View article: The Ocean Boundary Layer beneath Larsen C Ice Shelf: Insights from Large-Eddy Simulations with a Near-Wall Model
The Ocean Boundary Layer beneath Larsen C Ice Shelf: Insights from Large-Eddy Simulations with a Near-Wall Model Open
The melt rate of Antarctic ice shelves is of key importance for rising sea levels and future climate scenarios. Recent observations beneath Larsen C Ice Shelf revealed an ocean boundary layer that was highly turbulent and raised questions …
View article: Double Diffusion As a Driver of Turbulence in the Stratified Boundary Layer Beneath George VI Ice Shelf
Double Diffusion As a Driver of Turbulence in the Stratified Boundary Layer Beneath George VI Ice Shelf Open
Warmer and more persistent intrusions of Circumpolar Deep Water (CDW) onto the West Antarctic Peninsula are a key driver of the recent increase in ice shelf mass loss. The relatively warm and salty CDW is thought to be mixed up to the base…
View article: Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation
Observed interannual changes beneath Filchner-Ronne Ice Shelf linked to large-scale atmospheric circulation Open
View article: Seismic Constraints on the Thickness and Structure of the Martian Crust from InSight
Seismic Constraints on the Thickness and Structure of the Martian Crust from InSight Open
SEIS, the seismometer of the InSight mission, which landed on Mars on 26 November 2018, is monitoring the seismic activity of the planet. The goal of the Mars Structure Service (MSS) is to provide, as a mission product, the first average 1…
View article: FISP/FISS Filcher Ronne Ice Shelf cavity (Southern Weddell Sea, Antartcica) oceanographic mooring and ice shelf basal melt rate radar data from 2015 to 2019, processed and low-pass filtered
FISP/FISS Filcher Ronne Ice Shelf cavity (Southern Weddell Sea, Antartcica) oceanographic mooring and ice shelf basal melt rate radar data from 2015 to 2019, processed and low-pass filtered Open
Time series of multi-annual (2015-2019) in-situ measurements of ocean hydrography (temperature, salinity) and ocean current velocities from five hot-water borehole deployed moorings inside the Filchner Ronne Ice Shelf cavity (Southern Wedd…
View article: A new percussion hammer mechanism for a borehole deployable subglacial sediment corer
A new percussion hammer mechanism for a borehole deployable subglacial sediment corer Open
Subglacial sediments have the potential to reveal information about the controls on glacier flow, changes in ice-sheet history and characterise life in those environments. Retrieving sediments from beneath the ice, through hot water drille…
View article: The Grounding Zone of Thwaites Glacier Explored by Icefin
The Grounding Zone of Thwaites Glacier Explored by Icefin Open
<p>Icefin performed the first long range robotic exploration of the grounding zone of Thwaites Glacier from January 9-12 2020. Icefin was part of the MELT project of the International Thwaites Glacier Collaboration deployed to the gr…
View article: Turbulence Observations in the Grounding Zone Region of Thwaites Glacier
Turbulence Observations in the Grounding Zone Region of Thwaites Glacier Open
<p>Antarctic ice shelves restrain the flow of grounded ice into the ocean, and are thus an important control on Antarctica’s contribution to global sea level rise. West Antarctica represents the largest source of uncertaint…
View article: Turbulence Observations Beneath Larsen C Ice Shelf, Antarctica
Turbulence Observations Beneath Larsen C Ice Shelf, Antarctica Open
Increased ocean‐driven basal melting beneath Antarctic ice shelves causes grounded ice to flow into the ocean at an accelerated rate, with consequences for global sea level. The turbulent transfer of heat through the ice shelf‐ocean bounda…
View article: An update to Greenland and Antarctic ice sheet topography, cavity geometry, and global bathymetry (RTopo-2.0.4)
An update to Greenland and Antarctic ice sheet topography, cavity geometry, and global bathymetry (RTopo-2.0.4) Open
As an update to the RTopo-2.0.1 data set (https://doi.org/10.1594/PANGAEA.856844), RTopo-2.0.4 contains new original bathymetry data for the Northeast Greenland continental shelf. In the Southern Ocean, we added the Rosier et al. (JGR Ocea…
View article: Propagation and Vertical Structure of the Tidal Flow in Nares Strait
Propagation and Vertical Structure of the Tidal Flow in Nares Strait Open
The southward freshwater flux through Nares Strait is an important component of the Arctic's freshwater budget. On short time scales, flow through the strait is dominated by the tides, and tidal dynamics may be important for the magnitude …
View article: Variability in Basal Melting Beneath Pine Island Ice Shelf on Weekly to Monthly Timescales
Variability in Basal Melting Beneath Pine Island Ice Shelf on Weekly to Monthly Timescales Open
Ocean‐driven basal melting of Amundsen Sea ice shelves has triggered acceleration, thinning, and grounding line retreat on many West Antarctic outlet glaciers. Here we present the first year‐long (2014) record of basal melt rate at sub‐wee…
View article: Basal Melt and Freezing Rates From First Noble Gas Samples Beneath an Ice Shelf
Basal Melt and Freezing Rates From First Noble Gas Samples Beneath an Ice Shelf Open
A climatically induced acceleration in ocean‐driven melting of Antarctic ice shelves would have consequences for both the discharge of continental ice into the ocean and thus global sea level, and for the formation of Antarctic Bottom Wate…
View article: A New Bathymetry for the Southeastern Filchner‐Ronne Ice Shelf: Implications for Modern Oceanographic Processes and Glacial History
A New Bathymetry for the Southeastern Filchner‐Ronne Ice Shelf: Implications for Modern Oceanographic Processes and Glacial History Open
The Filchner‐Ronne Ice Shelf, the ocean cavity beneath it, and the Weddell Sea that bounds it, form an important part of the global climate system by modulating ice discharge from the Antarctic Ice Sheet and producing cold dense water mass…
View article: Filchner Ice Shelf cavity noble gas (helium and neon) measurements
Filchner Ice Shelf cavity noble gas (helium and neon) measurements Open