Tag: AWI
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UndercoverEisAgenten auf Social-Media
Permafrost ist gefrorener Boden und in der Arktis weit verbreitet. Gebäude und Straßen werden auf ihm gebaut. Doch was passiert, wenn diese Böden durch die Klimaerwärmung zunehmend auftauen? Zusammen mit jungen Bürgerwissenschaftler*innen in der kanadischen Arktis und Deutschland gehen wir auf Spurensuche! Wir freuen uns sehr über den Start unserer Social-Media-Kanäle! Erfahrt mehr über das…
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Multitemporal Terrestrial Laser Scanning Point Clouds for Thaw Subsidence Observation
New paper on “Multitemporal Terrestrial Laser Scanning Point Clouds for Thaw Subsidence Observation at Arctic Permafrost Monitoring Sites” The paper investigates different methods for quantifying thaw subsidence using terrestrial laser scanning (TLS) point clouds. Thaw subsidence is a slow (mm‐cm per year) vertical displacement of the ground surface common in ice‐rich permafrost‐underlain landscapes. It is…
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PermaSAR project concluded with publication of final report
With the publication of the final report, the PermaSAR project is concluded. In the blink of an eye regarding timescales of permafrost monitoring, research within the project period covered diverse methods and analyses around the topic of permafrost and related thaw subsidence in Arctic tundra landscapes. The report (in German) provides all details on the…
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Exponat aus Heidelberg bietet Training für KI-Algorithmen auf der MS Wissenschaft
Mitmach-Exponate geben auf der MS Wissenschaft in Heidelberg vom 28. August bis 1. September Einblicke in die Entwicklung und Anwendung Künstlicher Intelligenz (KI). Mit auf dem zu einer schwimmenden Ausstellung umgebauten ehemalige Kohlefrachter ist auch ein Exponat des Heidelberg Institute for Geoinformation Technology (HeiGIT) an der Universität Heidelberg, gefördert von der Klaus Tschira Stiftung. Das…
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Estimating tree height from TanDEM-X data at the northwestern Canadian treeline
A new paper on tree height estimation from TanDEM-X data has just been published in Remote Sensing of Environment. The article finds that tree height can be predicted using TanDEM-X metrics (backscatter, bistatic coherence, and interferometric height) in the sparse forest patches of the Arctic treeline zone at the transition from forest to tundra. Taking…
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Letzte Vorbereitungen: Start der MS Wissenschaft am 16. Mai 2019
Mitmach-Exponate direkt aus der Forschung geben in der Ausstellung auf der MS Wissenschaft 2019 Einblicke in die Entwicklung und Anwendung Künstlicher Intelligenzen (KI). Die MS Wissenschaft startet ihre Tour am 16. Mai 2019 in Berlin und besucht Ende August auch Heidelberg. Das Exponat „Mensch Maschine – Forschung im Team“ zeigt wie Trainingsdaten für KI-Algorithmen erstellt…
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HeiGIT supports Citizien Science @ Helmholtz ThinkCamp
We are always happy to support citizen science projects at the HeiGIT. HeiGIT/ GIScience efforts already range from tools that assess the data quality of citizen science projects (see, e.g., this blog post about “Plausible Parrots“) to approaches related to data creation, like MapSwipe Analytics (learn more here). Currently, we are supporting citizen science approaches…
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Publication of multi-sensor data from Arctic Siberian permafrost site
A 16-year record (2002–2017) of permafrost, active-layer, and meteorological conditions at the Samoylov Island Arctic permafrost research site, Lena River delta, northern Siberia was just published in Earth System Science Data. The long-term observational data is complemented by high-resolution topographic data acquired by terrestrial laser scanning (TLS) in 2017, when the 3DGeo Research Group joined…
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Open access publication of airborne laser scanning data of Arctic permafrost region
Airborne laser scanning (ALS) data of the Arctic permafrost research region Trail Valley Creek (TVC) has just been published for open access on the data library PANGAEA: Anders, Katharina; Antonova, Sofia; Boike, Julia; Gehrmann, Martin; Hartmann, Jörg; Helm, Veit; Höfle, Bernhard; Marsh, Philip; Marx, Sabrina; Sachs, Torsten (2018): Airborne Laser Scanning (ALS) Point Clouds of…
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Continuing ground-based measurements at Arctic research site
For the fourth consecutive year, ground-based measurements of the dynamic, permafrost-underlain tundra landscape have been continued in Trail Valley (68°44’25” N 133°29’36” W). A team of permafrost researchers from the Alfred Wegener Institute (AWI) for Polar and Marine Research around PD Dr. Julia Boike conducted the measurements as part of a large expedition to the Canadian Northwest…
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Full publication of multitemporal multisensor dataset from an Arctic permafrost research site
The multisensor datasets acquired in the three field campaigns of the PermaSAR project have recently been published on the Open Access data library PANGAEA: Anders, K., Antonova, S., Beck, I., Boike, J., Höfle, B., Langer, M., Marsh, P., Marx, S., (2018): Multisensor ground-based measurements of the permafrost thaw subsidence in the Trail Valley Creek, NWT,…
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3D geodata acquisition in the Siberian Arctic
In September 2017, the 3D Spatial Data Processing Group (3DGeo) joined the German-Russian expedition of the Alfred Wegener Institute (AWI) for Polar and Marine Research to the Arctic research station Samoylov (N 72°22’, E 126°29’) in the central Lena Delta. Under the lead of Julia Boike, the research team maintained and expanded long-term monitoring stations…