Modeling ice melt rates from seawater intrusions in the grounding zone of Petermann Gletscher, Greenland

R Gadi, E Rignot, D Menemenlis - Geophysical Research …, 2023 - Wiley Online Library
Satellite radar interferometry data reveals that the grounding line of Petermann Glacier,
Greenland migrates by several kilometers during the tidal cycle, bringing pressurized …

Melt rates in the kilometer-size grounding zone of Petermann Glacier, Greenland, before and during a retreat

E Ciracì, E Rignot, B Scheuchl… - Proceedings of the …, 2023 - National Acad Sciences
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 …

Seawater intrusion in the observed grounding zone of Petermann Glacier causes extensive retreat

S Ehrenfeucht, E Rignot… - Geophysical Research …, 2024 - Wiley Online Library
Understanding grounding line dynamics is critical for projecting glacier evolution and sea
level rise. Observations from satellite radar interferometry reveal rapid grounding line …

Observations and modeling of ocean‐induced melt beneath Petermann Glacier Ice Shelf in northwestern Greenland

C Cai, E Rignot, D Menemenlis… - Geophysical Research …, 2017 - Wiley Online Library
We update observationally based estimates of subaqueous melt, Qm, beneath Petermann
Glacier Ice Shelf (PGIS), Greenland, and model its sensitivity to oceanic thermal forcing, TF …

Grounding line migration through the calving season at Jakobshavn Isbræ, Greenland, observed with terrestrial radar interferometry

S Xie, TH Dixon, D Voytenko, F Deng… - The …, 2018 - tc.copernicus.org
Ice velocity variations near the terminus of Jakobshavn Isbræ, Greenland, were observed
with a terrestrial radar interferometer (TRI) during three summer campaigns in 2012, 2015 …

Ocean forcing of the Greenland Ice Sheet: Calving fronts and patterns of retreat identified by automatic satellite monitoring of eastern outlet glaciers

A Seale, P Christoffersen, RI Mugford… - Journal of Geophysical …, 2011 - Wiley Online Library
We have developed an automatic method to identify changes in the position of calving
glacier margins using daily MODIS imagery. Application of the method to 32 ocean …

Seasonal acceleration of Petermann Glacier, Greenland, from changes in subglacial hydrology

S Ehrenfeucht, M Morlighem, E Rignot… - Geophysical …, 2023 - Wiley Online Library
Petermann Glacier is a major outlet glacier of northern Greenland that drains a marine‐
based basin vulnerable to destabilization from enhanced oceanic and atmospheric forcings …

Subaqueous melting of Store Glacier, west Greenland from three‐dimensional, high‐resolution numerical modeling and ocean observations

Y Xu, E Rignot, I Fenty, D Menemenlis… - Geophysical …, 2013 - Wiley Online Library
We present three‐dimensional, high‐resolution simulations of ice melting at the calving face
of Store Glacier, a tidewater glacier in West Greenland, using the Massachusetts Institute of …

Ocean access to Zachariæ Isstrøm glacier, northeast Greenland, revealed by OMG airborne gravity

J Yang, Z Luo, L Tu - Journal of Geophysical Research: Solid …, 2020 - Wiley Online Library
Seafloor topography shapes the pathways of ocean currents transporting ocean heat and,
thus, is a fundamental boundary condition for modeling ocean‐ice interactions. However …

Undercutting of marine‐terminating glaciers in West Greenland

E Rignot, I Fenty, Y Xu, C Cai… - Geophysical Research …, 2015 - Wiley Online Library
Marine‐terminating glaciers control most of Greenland's ice discharge into the ocean, but
little is known about the geometry of their frontal regions. Here we use side‐looking …