Iceberg Tracker moves on but seems in trouble

Iceberg tracker temperatures from 9/8/16 to 7/10/16

Iceberg tracker temperatures from 9/8/16 to 7/10/16

We have been checking the iceberg tracker temperature as one way of telling if it is in the sea is a flatter daily variation in temperatures. Here you can see it did regularly read sub-zero at midnight then warmer an noon. Recently however it is showing mainly positive temperatures.

iceberg tracker locations up to 7/10/16

iceberg tracker locations up to 7/10/16

After spending weeks among the small islands in the centre of this map – it has moved south until reaching land again. This dramatic movement may be because the iceberg has broken up.