Seismological constraints on ice properties at Dome C, Antarctica, from horizontal to vertical spectral ratios
نویسندگان
چکیده
منابع مشابه
Shape and size constraints on dust optical properties from the Dome C ice core, Antarctica
Mineral dust aerosol (dust) is widely recognized as a fundamental component of the climate system and is closely coupled with glacial-interglacial climate oscillations of the Quaternary period. However, the direct impact of dust on the energy balance of the Earth system remains poorly quantified, mainly because of uncertainties in dust radiative properties, which vary greatly over space and tim...
متن کاملIce flow modelling at EPICA Dome C and Dome Fuji, East Antarctica
1 Laboratoire de Glaciologie et Géophysique de l’Environnement, CNRS and Joseph Fourier University, Grenoble, France 2 Laboratoire des Sciences du Climat et de l’Environnement, Gif-Sur-Yvette, France 3 Niels Bohr Institute for Astronomy, Physics and Geophysics, Copenhagen, Denmark 4 National Institute of Polar Research, Research Organization of Information and Systems (ROIS), Tokyo, Japan 5 Cen...
متن کامل1-D-ice flow modelling at EPICA Dome C and Dome Fuji, East Antarctica
One-dimensional (1-D) ice flow models are used to construct the age scales at the Dome C and Dome Fuji drilling sites (East Antarctica). The poorly constrained glaciological parameters at each site are recovered by fitting independent age markers identified within each core. We reconstruct past accumulation rates, that are larger than those modelled using the classical vapour saturation pressur...
متن کاملBrightness and Extinction at Dome C , Antarctica
The recent discovery of exceptional seeing conditions at Dome C, Antarctica, raises the possibility of constructing an optical observatory there with unique capabilities. However, little is known from an astronomer's perspective about the optical sky brightness and extinction at Antarctic sites. We review the contributions to sky brightness at high-latitude sites, and calculate the amount of us...
متن کاملSubmillimeter Site Testing at Dome C, Antarctica
We have developed a 350μm radiometer to perform automated site testing in remote regions of Antarctica. In summer 2000–2001 the instrument operated at Concordia, a new station under construction at Dome C on the Antarctic Plateau. We present the results, and compare them with the atmospheric opacity measured at the South Pole in the same five-week period. During these five weeks, observing cond...
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ژورنال
عنوان ژورنال: Antarctic Science
سال: 2010
ISSN: 0954-1020,1365-2079
DOI: 10.1017/s0954102010000325