Here is a quick snapshot of some data from the new Fjalls site:
It is already approaching 2m distance from its original location – also the jitter on the positions is very small.
This is temperature from Rover4’s Peli case, which is the heighest on Breida and is showing good variations (X axis starts in August).
The little Brinno camera we left on a monopod last October 2017 continued capturing images until the 9th of June 2018. Here is a frame from a sunny morning in March showing how much the ice drives over the moraine:
The camera managed this on four lithium AA batteries.
This is a screenshot of the 3D model made of Fjalsjokull (using Agisoft Photoscan) with the images we captured in 2017 with our 3DR Solo/Mapir Survey2 camera.
This long term plot for Breida’ show the number of satellites used for each fix. It shows the normal variation due to their paths in the sky. It is quite consistent throughout the winter.
In preparation for deploying more systems in Iceland this summer – I updated our spare Piksi Multis and did a garden test. It performed very well!
I set them up to fix at 10Hz but report every 5 readings – so its closer to our slow system in Iceland. The fix hopped around within about 1.5cm – which is good for my garden as the sky box is not that wide.
Since fixing the Fjalls system we have a steady stream of data – showing the glacier moving:
This shows a movement of around 1.5m in just ten days.
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).
Testing the Piksi Multi from Swift Navigation. North/East relative position of rover – in a 96s test in an open space. The readings are quoted as accurate to 0.023m H 0.037m V.
this shows the glacier-sea front where icebergs calve (Photo: Formula E)
The sea near the glacier – with a variety of icebergs (Photo: Formula E)
Formula E car driving on a glacier in Greenland. This photo shows the icebergs in the sea – like the one we are tracking from here. Photo courtesy Formula E team.
In the center area of this image are the islands off the coast of Greenland where the iceberg we are tracking has been “caught”. You can see there is a whirlpool effect there compared to other areas where bergs pass by. Nasa MODIS images from 18th July – Aug 3rd. excluding cloudy days.
Our GPS data is showing us that the iceberg we are tracking has been drawn into some islands and has stopped moving significantly. The MODIS image data from Nasa was very clear on this day and it is possible to see ice between the islands:
Satellite image of the iceberg being tracked in Greenland – on Aug 29th 2016