Category: Research
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Improved Performance of HELIOS++ using High Performance Computing Techniques
The software HELIOS++ simulates the laser scanning of a given virtual scene that can be composed of different spatial primitives and 3D meshes with distinct granularity. The high computational cost of this type of simulation software demands efficient computational solutions. Classical solutions based on GPU are not well suited when irregular geometries compose the scene…
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New(s) story about Sensing Mountains Summer School 2022
The fourth edition of the Innsbruck Summer School of Alpine Research took place in September 2022, finally back in the lovely mountain landscape of the Ötztal valley in Tyrol, Austria. Once again, 40 participants – young researchers from all over the world – gathered in Obergurgl to learn and exchange about new concepts and solutions…
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New paper: Capturing complex star dune dynamics – repeated highly accurate surveys combining multitemporal 3D topographic measurements and local wind data
Morphologies of highly complex star dunes are the result of aeolian dynamics in past and present times. These dynamics reflect climatic conditions and associated forces like sediment availability and vegetation cover, as well as feedbacks with adjacent environments. However, an understanding of aeolian dynamics on star dune morphometries is still lacking sufficient detail, and their…
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Human-in-the-loop development of spatially adaptive ground point filtering pipelines — An archaeological case study
LiDAR data have become indispensable for research in archaeology and a variety of other topographic applications. To derive products (e.g. digital terrain or feature models, individual trees, buildings), the 3D LiDAR points representing the desired objects of interest within the acquired and georeferenced point cloud need to be identified. This process is known as classification,…
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Open Healthcare Access Map Update and HDX
Last year we started the Open Healthcare Access Map. Initially, only a few countries and later on continents were featured. Today, we are pleased to announce that we are releasing a number of previously missing countries, achieving global coverage. The Open Healthcare Access Map uses healthcare facilities extracted from OpenStreetMap, the isochrone method from openrouteservice…
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Access to safe abortion in Germany
Our team thoroughly enjoyed the newly in-person State of the Map 2022 in Florence. We attended workshops, talks, and had the opportunity to present our own poster about the accessibility of abortion clinics in Germany, which will be discussed in this post and can be found here. In the following blog, we’ll explore more information…
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How to become ohsome part 14 – Advanced dashboarding
Hello again and welcome back to our “How to become ohsome” series where we demonstrate how you too can become ohsome with ohsome API! If you’re new to the series or need a refresher, check out the older installments in our series, like this or this one covering the various ways of accessing ohsome API. And now to our…
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Continued multisource 3D point cloud acquisition at the AHK rock glacier
While the impacts of global warming and current heat waves on glaciated areas have been in the focus of media reporting in recent weeks, also the dynamics of rock glaciers as part of the periglacial environment are strongly affected by changing climate. Rock glaciers are creep phenomena of mountain permafrost and an integral part of…
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How to become ohsome part 13 – An ohsome way to check if OSM is up to date
At long last, welcome to another addition of our How to become ohsome-series! This one is special because we’re discussing a third-party application that uses ohsome API as back-end to accumulate historical OSM data. Although this innovation isn’t directly about our API, it’s close enough (and exciting enough) to merit inclusion and just one more opportunity for…
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Open GIScience PostDoc positions on understanding the relationships between “Urban nature experience, biodiversity and mental health”
We call for applications to postdoctoral positions within the Heidelberg Mannheim Health and Life Science Alliance “Innovation Campus” for Inter-institutional project. The Central Institute of Mental Health (ZI), Prof. A. Meyer-Lindenberg, the GIScience Research Group at Heidelberg University (Prof. A. Zipf), the 3DGeo Group (Prof. B. Höfle); and the Department of Biodiversity and Plant Systematics…
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ohsome Region of the Month: hiking-related tags & mountains
Welcome back to a new installment of the ohsome Region of the Month blog series! This will be part two our posts on hiking related tags and this time, we’ll investigate the connection between user activity and said tags. To do this, we’ll use mountain time as a reference area and incorporate insights from part one…
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Data description paper: Individual tree point clouds and tree measurements from multi-platform laser scanning in German forests
New data description paper on our tree point cloud dataset was just published Today, our data description paper was published in the open access Journal Earth System Science Data: Weiser, H., Schäfer, J., Winiwarter, L., Krašovec, N., Fassnacht, F. E., and Höfle, B. (2022): Individual tree point clouds and tree measurements from multi-platform laser scanning…