B. Scheuchl
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Contrasting melt regime in the Ice Grounding Zone of Thwaites Glacier, West Antarctica Open
The contribution of Thwaites Glacier, Antarctica, to sea level rise is influenced by how quickly warm salty seawater of Circumpolar Deep Water origin melts basal ice near its grounding line. Satellite observations reveal tidally forced kil…
View article: Brief communication: Updated grounding line mapping in the Amundsen Sea Embayment, Antarctica, from 1-day repeat Sentinel-1 SAR data
Brief communication: Updated grounding line mapping in the Amundsen Sea Embayment, Antarctica, from 1-day repeat Sentinel-1 SAR data Open
Knowledge of Antarctic glacier grounding lines, which mark the transition between grounded and floating ice, is a vital parameter in determining the stability of major ice shelves and hence the ice sheet. Rapid grounding line retreat and a…
Rapid retreat of Berry Glacier, West Antarctica, linked to seawater intrusions revealed by radar interferometry Open
We employ a time series of ERS-1/2, ALOS-1/2 PALSAR, Sentinel-1, COSMO-SkyMed, and RCM differential synthetic-aperture radar interferometry data from 1996 to 2023 to document the short and long-term migrations of the grounding line (GL) of…
View article: A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission?
A New Age of SAR: How Can Commercial Smallsat Constellations Contribute to NASA's Surface Deformation and Change Mission? Open
In response to the 2017 Decadal Survey, NASA conducted a five‐year study on the Surface Deformation and Change (SDC) designated observable to study potential mission concepts. As part of the SDC mission study, the Commercial Synthetic Aper…
View article: Half a century of extensive acceleration and grounding line retreat following the ocean driven collapse of Wordie Ice Shelf
Half a century of extensive acceleration and grounding line retreat following the ocean driven collapse of Wordie Ice Shelf Open
Ice shelves restrain the discharge of grounded ice into the ocean, and their break-up plays a major role in Antarctica’s contribution to sea level rise. By combining aerial images from 1966 with modern satellite data, we produce one of the…
Widespread seawater intrusions beneath the grounded ice of Thwaites Glacier, West Antarctica Open
Warm water from the Southern Ocean has a dominant impact on the evolution of Antarctic glaciers and in turn on their contribution to sea level rise. Using a continuous time series of daily-repeat satellite synthetic-aperture radar interfer…
View article: Melt rates in the kilometer-size grounding zone of Petermann Glacier, Greenland, before and during a retreat
Melt rates in the kilometer-size grounding zone of Petermann Glacier, Greenland, before and during a retreat Open
Warming of the ocean waters surrounding Greenland plays a major role in driving glacier retreat and the contribution of glaciers to sea level rise. The melt rate at the junction of the ocean with grounded ice—or grounding line—is, however,…
View article: BENEFIT ASSESSMENT OF COMMERCIAL SYNTHETIC APERTURE RADAR OBSERVATIONS FOR NASA’S SURFACE DEFORMATION AND CHANGE MISSION STUDY
BENEFIT ASSESSMENT OF COMMERCIAL SYNTHETIC APERTURE RADAR OBSERVATIONS FOR NASA’S SURFACE DEFORMATION AND CHANGE MISSION STUDY Open
The Surface Deformation and Change (SDC) mission study is investigating a synthetic aperture radar (SAR) mission that is expected to launch in the next decade, building on the foundation established by the NASA ISRO Synthetic Aperture Rada…
View article: Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 Open
Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 …
Grounding Zone of Amery Ice Shelf, Antarctica, From Differential Synthetic‐Aperture Radar Interferometry Open
We employ a time series of Sentinel‐1 differential radar interferometry data from 2018 to detect the variability in grounding line position of the Fisher, Mellor, and Lambert glaciers, which drain about 47 billion tons of ice per year from…
Decadal grounding line migration and ice shelf melt regime of Petermann Glacier, North-West Greenland, from high-resolution InSAR data. Open
Petermann Glacier (80.75N, 60.75W) terminates in one of the most extensive remaining ice tongues of the Greenland Ice Sheet. The glacier is grounded 600 meters below sea level on a downsloping bed and could significantly contribute to sea …
Changes in Antarctic Ice Sheet Motion Derived From Satellite Radar Interferometry Between 1995 and 2022 Open
Ice motion and boundaries are critical information for ice sheet models that project ice evolution in a warming climate. We present four historical, continent‐wide, maps of Antarctic‐wide ice motion and boundaries for the time period 1995–…
View article: “Peripheral glaciers matter” by Hugonnet R. & Berthier E.
“Peripheral glaciers matter” by Hugonnet R. & Berthier E. Open
Abstract. Ice losses from the Greenland and Antarctic Ice Sheets have accelerated since the 1990s, accounting for a significant increase in global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to…
View article: Comment on essd-2022-261
Comment on essd-2022-261 Open
Abstract. Ice losses from the Greenland and Antarctic Ice Sheets have accelerated since the 1990s, accounting for a significant increase in global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to…
View article: Reply on CC1
Reply on CC1 Open
Ice losses from the Greenland and Antarctic Ice Sheets have accelerated since the 1990s, accounting for a significant increase in global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from…
View article: Mass Balance of the Greenland and Antarctic Ice Sheets from 1992 to 2020
Mass Balance of the Greenland and Antarctic Ice Sheets from 1992 to 2020 Open
Ice losses from the Greenland and Antarctic Ice Sheets have accelerated since the 1990s, accounting for a significant increase in global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from…
Multi-year mosaics of Antarctic ice motion from satellite radar interferometry: 1995 to 2022 Open
Ice motion and ice boundary are critical information for ice sheet models that project ice evolution in a warming climate. We present four historical, continent-wide, maps of Antarctic ice motion and boundary for the time period 1995-2022.…
Physical processes controlling the rifting of Larsen C Ice Shelf, Antarctica, prior to the calving of iceberg A68 Open
Significance The stability of Antarctica and its contribution to sea-level rise are determined by the evolution of its ice shelves, which are vast expanses of floating ice that buttress the continent. Ice shelves have been undergoing major…
Automatic delineation of glacier grounding lines in differential interferometric synthetic-aperture radar data using deep learning Open
Delineating the grounding line of marine-terminating glaciers—where ice starts to become afloat in ocean waters—is crucial for measuring and understanding ice sheet mass balance, glacier dynamics, and their contributions to sea level rise.…
Automatic Delineation of Grounding Lines from Differential InSAR along the Getz Ice Shelf, Antarctica, using a Machine Learning Algorithm Open
Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Automatic Delineation of Grounding Lines from Differential InSAR along the Getz Ice Shelf, Antarctica, using a Machine Learning Algorit…
Ocean forcing drives glacier retreat in Greenland Open
Many Greenland glaciers have been attacked by the ocean from below and, in turn, contributed to sea-level rise from the ice sheet.
Impact of Calving Dynamics on Kangilernata Sermia, Greenland Open
Iceberg calving is a major component of glacier mass ablation that is not well understood due to a lack of detailed temporal and spatial observations. Here, we measure glacier speed and surface elevation at 3 min intervals using a portable…
Constraining an Ocean Model Under Getz Ice Shelf, Antarctica, Using A Gravity‐Derived Bathymetry Open
Getz Ice Shelf, the largest producer of ice shelf meltwater in Antarctica, buttresses glaciers that hold enough ice to raise sea level by 22 cm. We present a new bathymetry of its sub‐ice shelf cavity using a three‐dimensional inversion of…
View article: Grounding Line Retreat of Denman Glacier, East Antarctica, Measured With COSMO‐SkyMed Radar Interferometry Data
Grounding Line Retreat of Denman Glacier, East Antarctica, Measured With COSMO‐SkyMed Radar Interferometry Data Open
Denman Glacier, East Antarctica, holds an ice volume equivalent to a 1.5 m rise in global sea level. Using satellite radar interferometry from the COSMO‐SkyMed constellation, we detect a 5.4 ± 0.3 km grounding line retreat between 1996 and…
Ice-shelf and glacier changes in Northern Greenland Open
In the northern sectors of Greenland, that hold more than 2.7 m of sea level equivalent, ice drains through ice shelves similarly to Antarctica. Zachariae Isstrm, in northeast Greenland, is retreating and accelerating, most probably becaus…
Continent‐Wide, Interferometric SAR Phase, Mapping of Antarctic Ice Velocity Open
Surface ice velocity is a fundamental characteristic of glaciers and ice sheets that quantifies the transport of ice. Changes in ice dynamics have a major impact on ice sheet mass balance and its contribution to sea level rise. Prior compr…
Forty-six years of Greenland Ice Sheet mass balance from 1972 to 2018 Open
We reconstruct the mass balance of the Greenland Ice Sheet using a comprehensive survey of thickness, surface elevation, velocity, and surface mass balance (SMB) of 260 glaciers from 1972 to 2018. We calculate mass discharge, D, into the o…