we moved rover1 higher up and across the glacier – it was very far down the ice after a couple of years.
here is a page on our 2018 Iceland fieldwork
We just edited some footage of the fjallsjokull margin
Here you can see the recently exposed foreland and its moraines.
(video taken with 3DR Solo and GoPro5 – without gimbal – hence the slight wobble)
In October Kirk and Phil went for a quick trip to swap out the Rockblock units and reset the base station at Fjalls.
Today we set up two dGPS units to measure the speed of some of Fjallsjökull glacier. We chose an area of ice which is clearly moving forward towards the lake.
The photo above shows a “quadpod” supporting the GPS units – which are an adaptation of those made by Matthew Roberts of the Icelandic met-office. The idea is to be strong enough to cope with winter and cast few shadows (which cause ice to grow). The system is currently measuring its position every 3hrs to an accuracy of about 2cm – using signals from the base station to help it.
These new dGPS units seem to be accurate to around 2cm as shown in our test. This is for a close baseline (and at the moment doesn’t use GLONASS).
This is a GPS tracker we quickly built as a test of tracking icebergs – it uses Satellite (Iridium) short text messages to send its location to us every 12hrs. Inside is a large lithium battery pack. The photo below shows a water test in the sink – just in case it ends up in the sea. We used a unit from YB Tracking. More info later!