'Ice stream' diaporamas de présentation

Tidal Modulation of Stick-Slip Ice Stream Motion

Update. Tidal Modulation of Stick-Slip Ice Stream Motion. R. A. Bindschadler M.King P. Vornberger S. Anandakrishnan I. Joughin D. Voigt R. A. Alley. We acknowledge NSF OPP for their financial and logistic support. Old. 2003-2004 Field Season. 21 GPS stations

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Provenance of Last Glacial Maximum Till from the Ross Embayment, Antarctica

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Understanding crevasses: Introduction

Understanding crevasses: Introduction. A glacier is a mass of snow and ice which has been or is in motion Snow falls and over time metamorphoses to ice and flows from higher to lower altitudes

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Elevation Change Anomalies in West Antarctica - New Windows Into Dynamics of Subglacial Water Flow

Elevation Change Anomalies in West Antarctica - New Windows Into Dynamics of Subglacial Water Flow. S. Tulaczyk, UCSC L. Gray, CCRS I. Joughin, APL, UW K. Jezek, BPRC, OSU V.B. Spikes, Earth Science Agency R. Bindschadler, NASA Acknowledgements: Financial support from NASA.

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Ian Joughin, U. Washington Jonathan L. Bamber, U. Bristol Ted Scambos, U. Colorado

Integrating satellite observations with modeling: Basal shear stress of the Filcher-Ronne Ice Streams, Antarctica. Ian Joughin, U. Washington Jonathan L. Bamber, U. Bristol Ted Scambos, U. Colorado Slawek Tulaczyk, UC Santa Cruz Mark Fahnestock, U. New Hampshire

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A WAIS Analog Found on Mars Polar Cap

A WAIS Analog Found on Mars Polar Cap. Weili Wang 1 , Jun Li 1 and Jay Zwally 2. 1. Raytheon ITSS, NASA/GSFC, Code 971, Greenbelt, MD 20771, USA. 2. Ocean and Ice Branch, NASA/GSFC, Code 971, Greenbelt, MD 20771, USA. X 5 km. Meter. X 5 km. X 5 km. X 5 km. Meter. North Polar Cap.

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BIOLOGICAL CONNECTIONS WITH THE WEST ANTARCTIC ICE SHEET (WAIS)

BIOLOGICAL CONNECTIONS WITH THE WEST ANTARCTIC ICE SHEET (WAIS). LIFE ON THE ROCKS. Paul Arthur Berkman, Ph.D. Bren School of Environmental Science and Management University of California, Santa Barbara. SYSTEMS DYNAMICS ARE ALL A MATTER OF PERSPECTIVE.

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ICE STREAMS OF THE ANTARCTIC

ICE STREAMS OF THE ANTARCTIC. The Antarctic Ice Sheets. The East Antarctic Ice Sheet Covers 1.0 x 10 7 km 2 Contains 2.6 x 10 7 km 3 of ice The West Antarctic Ice Sheet Covers 2.0 x 10 6 km 2 Contains 3.3 x 10 6 km 3 of ice. What is an Ice Stream?.

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LMWG progress towards CLM4 Goal: complete by CCSM workshop; evaluate impact on CLM-CN

LMWG progress towards CLM4 Goal: complete by CCSM workshop; evaluate impact on CLM-CN. Soil hydrology soil moisture variability problem; interim solution Snow model: snow cover fraction, snow burial fraction, snow age, vertically resolved heating, aerosol deposition

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(I) Introduction to the Problem and Background

(II) Regional Bedrock Geology (Figure 4). The exposed bedrock in East and West Antarctica is compositionally different, thus the till from the two regions should be different as well. We assume that the composition of the till reflects the composition of the rocks over which ice flowed.

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(I) Introduction to the Problem and Background

(II) Regional Bedrock Geology (Figure 4). The exposed bedrock in East and West Antarctica is compositionally different, thus the till from the two regions should be different as well. We assume that the composition of the till reflects the composition of the rocks over which ice flowed.

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Sea-level Response to Ice Sheet Evolution

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THICKNESS EVOLUTION ►initial condition is slab of ice 850m thick resting on flat bedrock at -750m

Figure 2. Results after 100kyr in the standard experiment. The three panels show ice thickness (upper panel in m), downstream velocity (middle panel in m yr -1 ) and the ratio of basal traction to gravitational driving stress (lower panel).

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Abstract

Using CReSIS airborne RADAR to constrain ice-volume influx across lateral shear margins in the Northeast Greenland Ice Seet (NEGIS). Michael Chamberlain (UC Berkeley), Emma Reeves (Hamline) Mentors: Mr. Peter Burkett (PSU), Dr. Sridhar Anandakrishnan (PSU) . Abstract

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