Results 41 to 50 of about 8,269 (215)

Scale-dependence of lithological control on topography: Bedrock channel geometry and catchment morphometry in western Scotland [PDF]

open access: yes, 2010
We propose that a scale-dependent topographic signature of erodibility arises due to fluvial and glacial erosion acting on different parts of the landscape at different times.
Bishop, P.   +3 more
core   +3 more sources

Evaluating Greenland glacial isostatic adjustment corrections using GRACE, altimetry and surface mass balance data

open access: yesEnvironmental Research Letters, 2014
Glacial isostatic adjustment (GIA) represents a source of uncertainty for ice sheet mass balance estimates from the Gravity Recovery and Climate Experiment (GRACE) time-variable gravity measurements.
Tyler C Sutterley   +5 more
doaj   +1 more source

A dynamic continental runoff routing model applied to the last Northern Hemisphere deglaciation [PDF]

open access: yesGeoscientific Model Development, 2012
We describe and evaluate a dynamical continental runoff routing model for the Northern Hemisphere that calculates the runoff pathways in response to topographic modifications due to changes in ice thickness and isostatic adjustment.
H. Goelzer   +3 more
doaj   +1 more source

Observed crustal uplift near the Southern Patagonian Icefield constrains improved viscoelastic Earth model [PDF]

open access: yes, 2014
Thirty‒one GPS geodetic measurements of crustal uplift in southernmost South America determined extraordinarily high trend rates (> 35 mm/yr) in the north‒central part of the Southern Patagonian Icefield.
Casassa, G.   +7 more
core   +2 more sources

Glacial-Isostatic Adjustment-I. The Forward Problem [PDF]

open access: yesGeophysical Journal of the Royal Astronomical Society, 2007
Summary The isostatic adjustment of a radially stratified visco-elastic spheroid is treated using space-time Green functions for the associated surface mass load boundary value problem. These impulse response functions are convolved with a Heaviside function to give the time dependent deformation of the planet which would be produced by a unit point
W. R. Peltier, J. T. Andrews
openaire   +1 more source

Late Glacial to Holocene relative sea-level change in Assynt, northwest Scotland, UK [PDF]

open access: yes, 2015
Relative sea-level change (RSL), from the Late Glacial through to the late Holocene, is reconstructed for the Assynt region, northwest Scotland, based on bio- and lithostratigraphical analysis.
Barlow, Natasha L M   +5 more
core   +2 more sources

On the gravity and geoid effects of glacial isostatic adjustment in Fennoscandia - a short note

open access: yesJournal of Geodetic Science, 2015
Many geoscientists argue that there is a gravity low of 10-30 mGal in Fennoscandia as a remaining fingerprint of the last ice age and load, both vanished about 10 kyr ago.
Sjöberg L. E.
doaj   +1 more source

ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions [PDF]

open access: yesGeoscientific Model Development, 2016
We describe a program that produces paleo-ice sheet reconstructions using an assumption of steady-state, perfectly plastic ice flow behaviour. It incorporates three input parameters: ice margin, basal shear stress and basal topography.
E. J. Gowan   +6 more
doaj   +1 more source

Towards Constraining Glacial Isostatic Adjustment in Greenland Using ICESat and GPS Observations [PDF]

open access: yes, 2014
Constraining glacial isostatic adjustment (GIA) i.e. the Earth’s viscoelastic response to past ice changes, is an important task, because GIA is a significant correction in gravity-based ice sheet mass balance estimates. Here, we investigate how temporal
E McFadden   +18 more
core   +1 more source

Alternating seismic uplift and subsidence in the late Holocene at Madang, Papua New Guinea: Evidence from raised reefs [PDF]

open access: yes, 2000
Well-preserved mid-late Holocene coral reefs are exposed in low coastal cliffs in the vicinity of the Madang lagoon on the north coast of Papua New Guinea.
Abbott   +41 more
core   +1 more source

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