Category Archives: Fieldwork
Fjalls 2022 3D model
Fjallsjokull timelapse camera 2022
We installed a Browning HP4 camera on the Fjalls base station pole to test it as a way of getting a long sequence of timelapse images. It has their solar panel fitted (small one half way up) – and is filled with lithium AA batteries.
The camera will take a couple of photos after sunrise and before sunset – it is very restrictive on timelapse unlike the Brinno cameras.
Fjallsarlon time-lapse camera
To see if a time-lapse camera would be useful in measuing rough lake depth changes we installed a Brinno again in 2022. It is set to take one photo every day at noon.
Swarm pico-sat coms tests
We have been doing more tests on the Swarm pico-sat coms with a view to using their system in Iceland.
This graph shows the temperature measurements during 6 days – showing the solar panel charging. On average the modem used 52mA but the battery was providing more like 120mA due to the LEDs and feather board.
Range testing new systems
In our mountainsensing project we showed that fully standard communications could cover large areas. For that project we had to add an 868MHz transceiver to our designs. This year we are doing a lot of development with the Atmel SAMR30 based system-on-chip as it includes a sub-GHz radio and has good support in the RIOT-OS. One important thing to test was the typical range to make sure it was similar to our roughly 1km with the previous CC1120. Here is a photo of a quick test in the New Forest which achieved 1km with this set of antennas:
2019 expedition photos
we moved rover1 higher up and across the glacier – it was very far down the ice after a couple of years.
Nat’s Iceland trip
2018 fieldwork photos
here is a page on our 2018 Iceland fieldwork