NNF webinars fall 2021

12. 07

The NNF is pleased to continue our series of webinars from September 2021.

Thursday September 9th  2021 at 15:00 (Swedish / Norwegian time).

 

“GNSS and Scintillations in the Ionosphere of the Arctic” presented by Sarah Schultz Beeck, Technical University of Denmark.

 

Global Navigation Satellite System (GNSS) signals are affected by the media of the ionosphere when traversing it. This can cause strong phase scintillation in the Arctic region, however, there is no continuous real-time monitoring of the ionosphere above Greenland at the moment. The thesis investigates possibilities for real time monitoring of the ionosphere above Greenland, based on data from geodetic 1 Hz GNSS stations. This, near real-time monitoring of the ionosphere and its scintillation, can be an advantage for GNSS users, and is a step towards improving the safety of navigation in the Arctic. The novelty of the work is the application of the kriging method as basis for rate of total electron content index (ROTI) maps in the Arctic.

 

A recording of the presentation can be found here: 

https://uwasa.zoom.us/rec/share/ynF6crqryOawBP-wtMdzRSBeDYP6BNEs6MPPtI_D4gA9vUXmhJLOwP6rVA02qLJi.dBQTDgi1DAk9nnPN 

 

November 25 2021, 15:00 (Swedish / Norwegian time)- Radio Frequency Interference in Norway and Europe

 

Radio Frequency Interence (RFI) or Jamming is a threat to all users of satellite navigation equipment. Nicolai Gerrard from the Norwegian Kommunications Authority (NKOM) and Aiden Morrison from SINTEF will present on the past, present and expected future of RFI in Norway and Europe generally. Specific topics will include examples of jamming devices apprehended in Norway, review of motivations for the use of illegal signal jamming, statistics from long term environment monitoring campaigns and how this impacts the general users of GNSS as well as autonomous and safety critical systems.

 

A recording to the presentations can be found here:

https://uwasa.zoom.us/rec/share/Vds6Tl3phP1tz9yBEp0mrSTzY_TmNudainli3PvJT6VN4CUcYGQJGD3xuO-f9PmU.ZujFrNhprZX_tzx5 

 

December 2 2021, 15:00 (Swedish / Norwegian time) - Animal Navigation presented by Professor Emily Baird from Stockholm University.

A dung beetle's life: How miniature brains solve complex navigation problems

After arriving at a fresh dung pile, ball-rolling dung beetles break off a piece of this nutritious resource, form it into a ball and roll it away in a straight line in order to escape the competition from other beetles that would rather steal someone else's lunch than make their own. In this presentation, I will talk about the work that we have done trying to understand how this straight-line orientation behaviour is orchestrated as well as presenting recent work done on one species that systematically navigates between a food source and its burrow. These beetles not only know in which direction to go but also how far to go and I will present the insights that we have gained so far on how these creatures, with brains smaller than a grain of rice, achieve this remarkable feat.

Link to the virtual presentation:  (Please note, that this link was changed on 17 November 2021  - we apologize for any inconvience and ask you to double check your calendars)

 

Join Zoom Meeting

https://liu-se.zoom.us/j/61150708449?pwd=SkF0UE5TbDFZOXNseWhVKzJ1N1JZZz09

 

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