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ROCK, TILL, AND ICE: A PROVENANCE STUDY OF THE BYRD GLACIER AND THE CENTRAL AND WESTERN ROSS SEA, ANTARCTICA
Glacial Geology Byrd Glacier Ross Sea Provenance
2015/1/16
Petrography of the sand fraction, particle size analysis, and detrital zircon U/Pb isotope data, and pebble count data were collected from Byrd Glacier moraines and central/western Ross Sea till in or...
Provenance Study of Reedy Glacier and West Antarctic Ice Stream Tills
Antarctica Ice Stream Till Reedy Glacier
2015/1/16
InJanuary2007,26samplesoftillfrom6differentmorainesalongtheReedy
Glacier,EastAntarcticawerecollectedwiththegoalofdifferentiatingbetweenthese
samplesandtillcollectedfromthebaseoftheWhillans,Kamb,andB...
Unmanned underwater vehicle provides first 3-D images of underside of Antarctic sea ice（图）
Antarctic sea ice 3-D images
2014/12/1
A video news release and b-roll are available by contacting Dena Headlee, (703) 292-7739 / dheadlee@nsf.gov
A National Science Foundation (NSF)-funded research team has successfully tested an autonom...
The velocity of unstable large ice masses from hanging glaciers increases as a power-law function of time prior to failure. This characteristic acceleration presents a finite-time singularity at the t...
The dynamics of different regimes in an ice covered inland lake with throughflow
are discussed. A new theory for selective withdrawal is tested with
success. The mixing of the entering river with la...
Meltwater Hydrology and Hydrochemistry in Snow- and Ice-Covered Mountain Catchments
Meltwater Hydrology Hydrochemistry Snow- and Ice-Covered Mountain Catchments
2009/10/28
Electrical conductivity, a surrogate measure of total dissolved solids content,
and discharge of meltwaters draining from two adjacent contrasting watersheds
in the Rocky Mountains, Canada, were rec...
A Growth Model for Black Ice,Snow Ice and Snow Thickness in Subarctic Basins
Growth Model Black Ice Snow Ice Snow Thickness Subarctic Basins
2009/10/28
A model for the growth of ice thickness in autumn and winter is presented.
Temperature of the upper surface of the ice sheet, snowfall and heat flux from
the water are external input variables, and ...
Dispersion studies in three ice-covered lakes are presented. One of the lakes
has a large river through-flow. In the other two lakes, small seiche-induced
currents are generated through wind action ...
A Perturbation Based Model of Heat-Induced Suppression of River Ice
Perturbation Based Model Heat-Induced Suppression River Ice
2009/10/27
The study of the thermal response of ice covered streams to an effluent of high
temperature, or of fast moving water, has been of considerable interest to those
concerned with hydraulic systems, env...
Dynamic Ice Breakup Control for the Connecticut River near Windsor,Vermont
Dynamic Ice Breakup Control Connecticut River Windsor
2009/10/27
The Cornish-Windsor bridge is the longest covered bridge in the United States
and has significant historical value. Dynamic ice breakup of the Connecticut
River can threaten the bridge and cause flo...
Changes in the Flexural Strength of Ice under Radiation Decay
Flexural Strength Ice under Radiation Decay
2009/10/26
The strength of an ice cover significantly affects the timing and severity of
breakup on northern rivers. During the pre-breakup period, thermal and radiative
warming is known to significantly decre...
A Review of Techniques used by Canada and other Northern Countries for Measurement and Computation of Streamflow under Ice Conditions
Northern Countries Measurement Computation Ice Conditions
2009/10/26
In Canada, Water Survey of Canada, a division of the Water Resources Branch
of Environment Canada, is responsible for the collection and processing of data
from more than 3,300 active streamflow, wa...
Difficulties in Deducing Temporal Changes in Precipitation Chemistry from Snow and Ice Cores:The Spatial Variability Problem
Temporal Changes Precipitation Chemistry Snow and Ice Cores Spatial Variability Problem
2009/10/26
Depth profiles of chemical impurities found in snow and ice have usually been
interpreted simply in terms of temporal changes in atmospheric concentrations
of the species of interest. Measurements o...
Modelling the Effect of Climatic Warming on the Hofsjökull Ice Cap,Central Iceland
Climatic Warming Hofsjö kull Ice Cap Central Iceland
2009/10/26
A time-dependent cylindrically symmetric computer model of the Hofsjokull
ice cap, Central Iceland, has been defined in order to investigate the time-scale
of possible glacier variations. The model ...
This paper describes the spatial and temporal variability of strength in a typical
river-ice cover during the pre-breakup period affected by radiation decay.
Strength was determined using the boreho...