the (new) bedrock map of antarctica

[Pmt111500]

description how it was produced:
http://www.the-cryosphere.net/7/375/2013/tc-7-375-2013.pdf

and a 3d snapshot of the map
http://cdn.physorg.com/newman/gfx/news/hires/2013/bedmap2gives.jpg

[sg_smith]

Great find!

[Pmt111500]

Went artistic and manually removed colors that looked similar in shade and in light to see the 'green grounding line' better... - wasn't too accurate, bet someone with a good software can do this way better and faster... But anyway it looks like the stones and other stuff brought to the shore by the glaciers have indeed made a couple of shallow 'islands' near the outlets under them. wouldn't count on them staying on location if the WAIS starts to move rapidly.

not being sure how to interpret shades of blue-green, i took part out and left some. :-/
Anyway, the potential http://en.wikipedia.org/wiki/Wilkes_Land_crater does not show up too well but what is the near circular structure on the west/east divide east of Ronne Shelf?

[Laurent]

Nasa did post a page about bedmap2 project :
http://www.nasa.gov/topics/earth/features/antarctic-map.html

[AbruptSLR]

Laurent,

I thought that I would add the following links and sample attached images (the last image is of the Dotson Getz Trough) regarding high resolution Southern Ocean bathymetry charts that can be downloaded for free:


Arndt, JE et al. (2013): The International Bathymetric Chart of the Southern Ocean (IBCSO) - digital bathymetric model. doi:10.1594/PANGAEA.805734,
In Supplement to: Arndt, Jan Erik; Schenke, Hans Werner; Jakobsson, Martin; Nitsche, Frank-Oliver; Buys, Gwen; Goleby, Bruce; Rebesco, Michele; Bohoyo, Fernando; Hong, Jong Kuk; Black, Jenny; Greku, Rudolf Kh; Udintsev, Gleb B; Barrios, Felipe; Reynoso-Peralta, Walter; Taisei, Morishita; Wigley, Rochelle (2013): The International Bathymetric Chart of the Southern Ocean Version 1.0 - A new bathymetric compilation covering circum-Antarctic waters. Geophysical Research Letters, online first, doi:10.1002/grl.50413

http://www.awi.de/en/news/press_releases/detail/item/a_sharper_look_into_the_southern_ocean/?cHash=71f1d6e5c0538ad59e3fba02dbeca9cb