Estimating effective pressures in active subglacial lakes with ICESat-2 satellite altimetry [0.03%]
基于ICESat-2卫星测高估算活跃冰下湖泊的有效压力
Aaron Stubblefield,Aleah Nicholson Sommers,Colin Meyer et al.
Aaron Stubblefield et al.
The difference between the ice and water pressures, or the effective pressure, influences water flow and sliding at the ice-bed interface. Effective pressure is typically quantified with subglacial hydrology models because direct measuremen...
Initial assessment of all-season Arctic sea ice thickness from ICESat-2 [0.03%]
ICESat-2卫星北极全年海冰厚度初步研究
Alek Petty,Alex Cabaj,Jack C Landy
Alek Petty
We present an initial assessment of all-season Arctic sea ice thickness estimates from ICESat-2 by combining freeboard retrievals with all-season SnowModel-LG snow loading. ICESat-2 captures the key regional and seasonal patterns of Arctic ...
Crevasse density, orientation and temporal variability at Narsap Sermia, Greenland [0.03%]
格陵兰纳斯阿帕塞米亚冰川的裂缝密度、走向及时间变化性
Maximillian Van Wyk de Vries,James M Lea,David W Ashmore
Maximillian Van Wyk de Vries
Mass loss from iceberg calving at marine-terminating glaciers is one of the largest and most poorly constrained contributors to sea-level rise. However, our understanding of the processes controlling ice fracturing and crevasse evolution is...
Semi-automated open water iceberg detection from Landsat applied to Disko Bay, West Greenland [0.03%]
基于Landsat的半自动开水上冰山检测在西格陵兰迪斯科湾的应用研究
Jessica Scheick,Ellyn M Enderlin,Gordon Hamilton
Jessica Scheick
Changes in Greenland's marine-terminating outlet glaciers have led to changes in the flux of icebergs into Greenland's coastal waters, yet icebergs remain a relatively understudied component of the ice-ocean system. We developed a simple ic...
Summer surface melt thins Petermann Gletscher Ice Shelf by enhancing channelized basal melt [0.03%]
夏季表面融化通过增强基底河道融化而消减彼得曼冰架厚度
Peter Washam,Keith W Nicholls,Andreas Mühow et al.
Peter Washam et al.
Increasing ocean and air temperatures have contributed to the removal of floating ice shelves from several Greenland outlet glaciers; however, the specific contribution of these external forcings remains poorly understood. Here we use atmos...
A Complete Map of Greenland Ice Velocity Derived from Satellite Data Collected over 20 Years [0.03%]
基于20年星载数据的格陵兰冰流速完整地图
Ian Joughin,Ben E Smith,Ian M Howat
Ian Joughin
While numerous maps of Greenland ice flow velocity exist, most have gaps in coverage and/or accuracy is limited. We processed a large volume of synthetic aperture radar (SAR) and Landsat 8 imagery collected between 1995 and 2015 to produce ...
Ian Joughin,Ben E Smith,Ian M Howat et al.
Ian Joughin et al.
Glaciers in Greenland are changing rapidly. To better understand these changes, we have produced a series of seven synthetic-aperture-radar (SAR) backscatter mosaics for seven winters during the period from 2000 to 2013. Six of the mosaics ...