What I find strange - after several years of continuous retreat, JH more or less stopped calving and had a strong advance through the last year, and sufdenly it all calves away. It could be random of course, but I still wonder if there was some new physical process at work.
I wonder if anything changed in the glacier's speed of advance or its height. If anybody has aceess to such resources with current data, please do post them here. I seem to remember there was one academic project of automatic tracking of GIS glacier speeds, but can't remember more details.