The measurement season 2022/23 was again a full success. Even if avalanche experiments could earliest start in February due to low precipitation events, it then started with the largest observed avalanche in this project. In all we were able to track 5 avalanches resulting in multiple particle measurements. Winter Season 2022/23 - Experiment on the 03.02.2023. A big focus this year was to use the new develop AvaNodes from generation III with upgraded GNSS modules and bringing in density and shape variations into the particle measurements.
In March 2023 we met again for an AvaRange workshop in Innsbruck with the major goal to investigate the ranging performance in the test area and under snow cover conditions. A further point we investigated were the upgraded GNSS modules (ublox ZED-F9P) in the AvaNodes Gen.III under snow cover. The tests where performed at Seegrube to eventually detected some environmental properties that influence the measurements. Workshop March 2023 - Seegrube. Dr.
During the Winter season 2022/23 Jannis Aust and Anselm Köhler installed the first AvaAnchors in our test side for long time testing. They are autonomously powered with a photovoltaic module and a batteries. Anchor 103 with open casing and PV module. The Anchors are connected with each other via a self generated WIFI mesh in which two base stations are integrated. The base stations have permanent power supply and internet accessibility so that the researches from Berlin have permanent access to the Anchors and can remotely flash the microcontrollers if needed.
In September 2022 we met together for the last recap before the winter and therefore experiment season starts again. First we inspected the test side Nordkette and tested our installed WIFI mesh and the avaiability of LoRa WAN. September 2022 - Hafelekar, test side inspection for the winter season 2022/23, with Anselm Köhler, Jonas Kuß and Rene Neurauter. We were quite lucky with the weather and had already some snow fall from the last days.
July 2022 - TKN labratory at TU Berlin. Working together to establish radio ranging for the AvaNodes. In front one can see the 2 orange AvaNodes, that include the ranging chip, and in the background 2 AvaAnchors, the fixed stations that collect the ranging data. In July 2022 the AvaRange Team met together in Berlin to develop and establish radio ranging for the AvaNodes under the lead of the TKN Team and Falko Dressler.
08.02.2022 - Kaminspitz Avalanche @Nordkette during the Experiments. The measurement season 2022 has come to an end and allowed us to record multiple avalanches. With the help of the Lambda4 rescue systems Smilla all sensors were recovered and accelerations, velocities and temperature evolutions were obtained for our “AvaNode’s”. Together with the University of Innsbruck, TU Berlin and the great support of Nordkettenbahn a new view into avalanches allows to uncover details of the avalanche’s core.
In April 2021 we did some field experiments, in Kühtai (Tirol), regarding the influence on snow on the GPS reception. Because the GPS data from the field experiments in March looks really promising, we want to know more about how much we can trust this data, when our AvaNode is buried in the avalanche. As a test site a football field close to ski area Kühtai was chosen. There was still a snowpack of 1.
Due to the snow conditions in March 2021, the team was able to get 3 successful real scale snow avalanche measurements. The first measurement was done in Wattener Lizum, Mölstal, together with the Austrian Army and Höhenarbeit. Two avalanches were released in Mölstal, the second one (right side) then carried the AvaNode to the valley bottom. The two other measurements were done on Nordkette, Seilbahnrinne, with support of the Lawinenkomission Nordkette and Nordkettenbahnen Innsbruck.
(BWF) Project work has finally started and we are now getting to know checking out our future test sites: The Nordkette near Innsbruck and the Bike Park at Mutterer Alm. Nordkette Already in summer we did some laser scans on one of our test sides, to get the digital elevation model in summertime. It is planned to install a permanent laser scanner on this test side, which would deliver us information before and after an avalanche was released.
Our new AvaRange website went online. We plan to use this to collect relevant resources on our DFG/FWF project AvaRange.