## 4 Conclusions  
We have presented the design and some sample results from our low-cost, open-source iceberg drift tracking beacon constructed using off-the-shelf components. The overall success of the Cryologger Ice Tracking Beacon deployments has demonstrated that low-cost, open-source hardware and software can provide a robust platform for the collection of in situ iceberg tracking data. With a total cost of under 650 USD in materials each, this represents a cost-effective alternative to comparable proprietary commercial systems that can track icebergs and relay ancillary in situ data, such as temperature and tilt. The development and deployment of these novel iceberg tracking beacons was intended to enhance and supplement existing iceberg observation networks within the Canadian Arctic. Data collected from Cryologger ITBs has already contributed to a database of iceberg tracking beacon tracks compiled by Carleton University and the Canadian Ice Service [40]. It has also provided key insights regarding iceberg drift characteristics and has improved our understanding of iceberg distributions within Canada's navigable waters. Most importantly, this research demonstrates to the scientific community that inexpensive, open-source hardware and software can provide a viable solution for the long-term monitoring of icebergs and ice island drift patterns in the polar regions. We hope that the technology developed by this project will lower the cost of research, encourage the adoption of open-source technologies for scientific research, and enable innovation in the polar science community. Development of the newest version of the Cryologger ITB is currently underway and is focused on improving overall reliability, modularity, and ease of construction. As lithium batteries are challenging to transport and more environmentally harmful than other battery chemistries, we are exploring the use of more environmentally friendly materials. We are also examining improvements to waterproofing that will allow the tracking beacons to transform into ocean-drifter buoys once the breakup of the icebergs occurs. New research applications are also constantly being explored for the Cryologger platform, which has already been configured for use as an automatic weather station to provide weather services to northern communities. Figure 9: Accelerometer measurements recorded between 27 October to 27 November 2018 from Cryologger ITB 300434063418130 on a grounded iceberg showing (**a**) pitch angle; (**b**) roll angle; (**c**) Tidal height predictions from Cape Dyer, Nunavut, approximately 150 km away. **Author Contributions:** Conceptualization, A.G. and D.M. ; methodology, A.G.; software, A.G.; validation, A.G.; formal analysis, A.G.; investigation, A.G.; resources, D.M. ; data curation, A.G.; writing--original draft preparation, A.G.; writing--review and editing, A.G. and D.M. ; visualization, A.G.; supervision, D.M. ; project administration, A.G. and D.M. ; funding acquisition, D.M. All authors have read and agreed to the published version of the manuscript. **Funding:** This work was supported by ArcticNet, a Network of Centers of Excellence of Canada, under the GO-Ice project, the National Science and Engineering Research Council of Canada Discovery Grant and Northern Research Supplement, Polar Knowledge Canada, and Environment and Climate Change Canada. In-kind logistical support was provided by Amundsen Science and the Polar Continental Shelf Program (PCSP). **Data Availability Statement:** Plans for the construction of the Cryologger ITB are available at [[https://github.com/cryologger/ice-tracking-beacon](https://github.com/cryologger/ice-tracking-beacon)]([https://github.com/cryologger/ice-tracking-beacon](https://github.com/cryologger/ice-tracking-beacon)). Data will be made available in the Iceberg Tracking Beacon Database at the Polar Data Catalogue. **Acknowledgments:** This project would not have been possible without the designs, software, and tutorials provided by the open-source community.