Pattyn, F., K. Matsuoka, and J. Berte, Ant. Sci., 22 (1), 79-85, 2010 [Link to the publisher’s web site]

We have examined glaciological and meteorological conditions of a new Belgian Princess Elisabeth Station (PES) in Dronning Maud Land, East Antarctica.  This station is designed to run with minimal fosil fuel (called “zero emission”) and locates near Sor Rondanne Mountains to fill a large gap of logistic support based at Japanese Syowa and German Neumayer Stations, which are separated more than 1100 km.  This is a contribution from Belgium to International Polar Year 2007-2008. Read the rest of this entry »

Laird C. M., W. A. Blake, K. Matsuoka, H. Conway, C. T. Allen, C. J. Leuschen, and P. Gogineni, IEEE Geo. Sci. Rem. Sens. Lett., 7 (2), 246 – 250, 2010. [Link to the paper at the publisher]

Paleoclimate proxies recorded in an ice core has been distorted while the ice flows from upstream.  It is always a critical question how much the ice stratigraphy has been disturbed and a quite tough question to us, radioglaciologists.

Figure 1 of this paper is highlighted as the page cover of this issue.

In collaboration with colleagues from Center for Remote Sensing of Ice Sheets (CReSIS) at University of Kansas, we have mapped ice stratigraphy at great depths and explore whether or not the ice sheet bed is frozen or wet.  Good news for ice core scientists is that the ice is rather stratified than disturbed so we have a pretty good chance to have an excellent paleoclimate proxies from the core.  Also, our best guess is that the bed in the vicinity of the core site is wet, i.e. ice is slowly melting. Read the rest of this entry »

Matsuoka, K., D. Morse and C. F. Raymond, J. Geophys. Res., F02012, doi: 10.1029/2009JF001496, 2010. [Link to the full paper]

Central West Antarctica (WAIS Divide). Contours and background color show surface topography and ice thickness. Gray stripes show radar profiles analyzed in this project. The inset shows the location of the main map.

Radar systems listen when and how strong his voice comes back.  The strengths of the echo depend on 1) how radio waves are attenuated in ice during a round trip and 2) how strongly radio waves are reflected from the target (ice layers or bed). Inadequate knowledge of either factor disables to know the other.  This paper discusses a novel method to estiamte englacial radar attenuation using a dataset from central West Antarctica. Read the rest of this entry »