Have been looking at the icebergs, particularly around the Weddell Sea recently.
a68a (82*25nm) hit the headlines when it calved in 2017 but there is also a23a (44*40nm) which has been grounded to the SE for many years, although it does seem to have moved slightly NW since January 2017. (Also I wonder if a23a is accumulating snow faster than it is melting - the Brunt ice shelf to the NE accumulates about 1.5 m per year?).
Some other 'bergs are heading off from the Weddell Sea in the direction of South Georgia - b15z (15*7nm), b15t (25*6nm), c28b (21*14nm) and b09f (20*8nm) are fairly clear.
A new recruit has been b15aa (11*6nm) which came round the bend from the east above the Brunt ice shelf (about October 24 2017) and has been drifting round in small circles all this summer season, rather than going south towards Brunt.
Don't know if this is of interest to other readers or if there is anything to add?