Petermann Glacier 2013

If the feature arrowed in the image below is not a processing artifact, then Petermann Glacier is setting itself up for yet another major calving event.  Further data is needed to support my suggestion that this is either a real fissure or the beginnings of one.

Petermann Glacier June 19 2013
Unmodified part of of 250m scale satellite image,

Below is an enhanced image showing that there are possibly two fissures.  I repeat that this new feature needs to be confirmed from other images.

Petermann Glacier June 19 2013
zoomed and enhanced image.