Mapping Snowline Evolution with Time-lapse imagery at Qasigiannguit

Mapping Snowline Evolution with Time-lapse imagery at Qasigiannguit

Projektleder: Alexandra Messerli, Ph.D. Remote Sensing Specialist, Asiaq – Greenland Survey
Øvrige deltagende: Penelope How, Remote Sensing Specialist, Asiaq Greenland Survey, how@asiaq.gl Kirsty Langley, Scientific Project Manager, Asiaq Greenland Survey, kal@asiaq.gl Adam M. Kjeldsen, Co-founder Two Ravens, Two Ravens, adam@tworavens.gl Thorlak Skifte Nielsen, Co-founder Two Ravens, Two Ravens, thorlak@tworavens.gl Lars O. Demant-Poort, Researcher, Institute of Learning, Ilisimatusarfik, lodp@uni.gl

Keywords: Snow, cryosphere, photogrammetry, glacier,
Projektets forskningsområde, formål og forskningsspørgsmål:
Snowmelt is integrally important for downstream ecosystems and the understanding of how climate change is affecting the mass balance of Greenland’s local glaciers. Changes in snow and firn conditions have a large impact on freshwater availability and supply on seasonal and multi-annual timescales, which affect predictions in snowmelt- and glacier-fed catchments, which can impact hydropower and drinking water. The aim of this project is to analyse snowline evolution throughout the year at Qasigiannguit Glacier, Kobbefjord, in order to obtain a baseline dataset of snow and firn conditions. Terrestrial time-lapse images and optical satellite
imagery will be used to extract snowline information, utilizing well-established techniques in photogrammetry and remote sensing. The datasets generated through this work will form the foundation of an upscaling experiment that will define spatial gradients in snow conditions between the coast and the ice sheet. This research will be anchored locally in Greenland, with strong links to local companies and educational institutions that strengthen the project’s aims, dissemination pathways, and visibility. Such activities will include local involvement with our fieldwork and dissemination, and knowledge sharing about snow conditions in the Nuuk region. Established local involvement will form the basis for strong collaboration in future work and projects

Metoder for kompetencebygning i form af inddragelse af samfundet:
Due to the proximity of Qasigiannguit to Nuuk, we see this as a perfect opportunity to involve local companies and academic institutions to learn about this research, and its importance in a local and global context. Key members from the educational system and a local guiding company will be included, also in the fieldwork to increase the awareness and dissemination pathways of scientific research conducted locally to Nuuk. This collaboration will facilitate a two-way exchange of knowledge, learning from those who spend their lives in the Nuuk backcountry all year round. This would enable us to learn about their understanding and experiences and their unique knowledge of this area, but also use their professional skills to help promote safer access to the backcountry region.

Metoder for formidling overfor samfundet:
Dissemination of findings at Greenland Science Week, alongside project partners. By providing insight into scientific methods and practices, it is hoped that the participants will convey the scientific work at Qasigiannguit, and its importance, to their professional networks and clientele (i.e. local communities, guides, students).

Projektets start- og sluttidspunkt: 3. maj 2021 – 29. april 2022

Bevilget: 99.985,00 Kr.

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