The Fjalls tracker has restarted – perhaps uprighted itself – and data is now coming in daily again. The gap in the data shows that it coul not create accurate readings then – which could also be due to a problem with its base station..
Here are some screnshots of rover3 on Breida’ – whch we moved in Aug 2019.
we moved rover1 higher up and across the glacier – it was very far down the ice after a couple of years.
the distance moved by one of the Breiðamerkurjökull nodes shows us the glacier has started moving again – at a rate comparable to the previous autumn. Its also great that this prototype node has sent data so continuously – right through the winter!
We captured thousands of images using a quadcopter, Survey 3 camera and then created the model with Agisoft Photoscan. Calibration targets on the ground geo-referenced the model. This fly-through is a screen capture from their viewer. The model-making process took around five days on a quad-core 4.4GHz PC. Models will be produced each year to monitor changes but they also help visualise moraine formation. The images captured were about 7mm/pixel resolution.
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).