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Accuracy of the zeroth- and second-order shallow-ice approximation – numerical and theoretical results
second-order shallow-ice Accuracy of the zeroth
2014/12/12
In ice sheet modelling, the shallow-ice approximation (SIA) and second-order shallow-ice approximation
(SOSIA) schemes are approaches to approximate the solution of the full Stokes equations governin...
Post-coring entrapment of modern air in some shallow ice cores collected near the firn-ice transition: evidence from CFC-12 measurements in Antarctic firn air and ice cores
modern air shallow ice cores the firn-ice transition CFC-12 measurements Antarctic firn air and ice cores
2010/6/9
In this study, we report measurements of CFC-12 (CCl2F2) in firn air and in air extracted from shallow ice cores from three Antarctic sites. The firn air data are consistent with the known atmospheric...
Temperature and Salt Content Regimes in Three Shallow Ice-Covered lakes
Temperature Salt Content Regimes Ice-Covered lakes
2009/10/23
A field study on the temperature, salt content, and density regime in three shallow
ice-covered Karelian lakes is presented. The measurements show that the
heat content increases during the whole ic...
Seasonal Variability of Thermal Regime in a Shallow Ice Covered Lake
Seasonal Variability Thermal Regime Ice Covered Lake
2009/10/22
A systematic study was conducted over six years (1994-1999) on a shallow ice
covered lake in the Russian Republic of Karelia with the aim of developing
better understanding of some physical processe...
Analytical solutions for the surface response to small amplitude perturbations in boundary data in the shallow-ice-stream approximation
Analytical solutions surface response amplitude perturbations boundary data
2008/7/16
New analytical solutions describing the effects of small-amplitude perturbations in boundary data on flow in the shallow-ice-stream approximation are presented. These solutions are valid for a non-lin...
Abstract: The correlations of the (18Omax in the shallow ice core from the Guliya ice cap on the Tibetan Plateau with the global sea surface temperatures (SST) and height at the 500 hPa ov...