The response of tidewater glaciers to ocean warming remains a key uncertainty in sea level rise predictions. Here we use a 3-D numerical model to examine the response of an idealised tidewater glacier to spatial variations in submarine melt rate. Whilst melting towards the centre of the terminus causes only a localised increase in mass loss, melting near the lateral margins triggers increased calving across the width of the glacier, causing the terminus to retreat at several times the width-averaged melt rate. This occurs because melting near the margins has a greater disruptive impact on the compressive stress arch that transfers resistance from the side walls to the body of the glacier. We suggest that the rate of terminus advance or retreat may thus be governed by the difference between ice velocity and submarine melting in the slow flowing zones away from the glacier centre.
Notes are encrypted so only you can see them.
ASAP Technoeconomic Analysis and Life Cycle Assessment of Five VGO
ASAP High-Temperature Pyrolysis Characteristics for a Single Biomass
Global citizen science effort marks the 50th anniversary of Earth Day
ASAP Applicability of Fuel Indexes for Small-Scale Biomass Combustion
Blue Bird Delivers Record 15 000th Propane Bus to Newport News Public..
Protect Bees from this Toxic Pesticide