Results 121 to 130 of about 38,278 (336)
Abstract Future projections and past reconstructions of Antarctic Ice Sheet stability and sea‐level rise depend on knowledge of continental shelf bathymetry, which controls water circulation under floating ice and interactions between the ice shelf and seafloor.
C. D. Locke+3 more
wiley +1 more source
Adjoint accuracy for the full-Stokes ice flow model: limits to the transmission of basal friction variability to the surface [PDF]
This work focuses on the numerical assessment of the accuracy of an adjoint-based gradient in the perspective of variational data assimilation and parameter identification in glaciology. Using noisy synthetic data, we quantify the ability to identify the friction coefficient for such methods with a non-linear friction law.
arxiv
Solar Cycle Detected in Natural Tritium of Ice Layers Before the Nuclear Era
Abstract The 11‐year cycle of the solar activity affects the production rate of cosmogenic isotopes. For tritium in precipitation, it has been just recently proven that this link exists. Here we show, for the first time, a tritium ice core time series which extends back to 1923, covering a time period that avoids the presence of artificial tritium from
L. Palcsu+10 more
wiley +1 more source
Assessment of surface albedo effect on the position of zero isotherm
Calculations with one-layer radiative model of the atmosphere based upon the data of Surface Radiation Budget archive over 1984–2007 allowed to assess changes in temperature distribution over the earth’s surface associated with radiation factors in ...
I. A. Korneva, S. M. Semenov
doaj +1 more source
ALPS: A Unified Framework for Modeling Time Series of Land Ice Changes [PDF]
Modeling time series is a research focus in cryospheric sciences because of the complexity and multiscale nature of events of interest. Highly non-uniform sampling of measurements from different sensors with different levels of accuracy, as is typical for measurements of ice sheet elevations, makes the problem even more challenging.
arxiv
A new regional climate model for POLAR-CORDEX : evaluation of a 30-year hindcast with COSMO-CLM2 over Antarctica [PDF]
Continent-wide climate information over the Antarctic Ice Sheet (AIS) is important to obtain accurate information of present climate and reduce uncertainties of the ice sheet mass balance response and resulting global sea level rise to future climate ...
Demuzere, Matthias+7 more
core +2 more sources
Abstract We have characterized the magnitude and spatial extent of observed regional and inter‐regional air temperature trends and warming extremes across Antarctica. Prior studies have used localized observational records to analyze air temperature trends across distinct geographical regions, leaving local and inter‐regional variations to be ...
Eva Bendix Nielsen+3 more
wiley +1 more source
State of balance of the cryosphere [PDF]
The current state of balance of the terrestrial ice sheets and glaciers is poorly known. What little data are available suggest that, worldwide, mountain glaciers have receded since about the mid‐nineteenth century, with occasional interruptions of the retreat. The interior part of the Greenland ice sheet appears to be thickening or in near equilibrium,
openaire +3 more sources
The Evaluation of Hydroclimatic Variables Over Nordic Fennoscandia Using WRF‐CTSM
Abstract This study is the first to evaluate the state‐of‐the‐art coupled land‐atmosphere regional climate model WRF‐CTSM. It comprises the Weather Research and Forecasting model, WRF, and the Community Terrestrial Systems Model, CTSM (using a configuration that is the same as the Community Land Model Version 5, CLM5).
Iris Mužić+5 more
wiley +1 more source
Cryomorphological topographies in the study of ice caves [PDF]
Producción CientíficaThe current interest in ice caves requires that their varied manifestations be known as accurately as possible in view of their responses to a global change and also to their great potential as paleoenvironmental witnesses.
Gómez Lende, Manuel+1 more
core +5 more sources