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index.xml
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<title>About on Jakob Schwalb-Willmann</title>
<link>https://jakob.schwalb-willmann.de/</link>
<description>Recent content in About on Jakob Schwalb-Willmann</description>
<generator>Hugo -- gohugo.io</generator>
<language>en-us</language>
<copyright>© {year} Jakob Schwalb-Willmann</copyright>
<lastBuildDate>Mon, 20 Nov 2023 08:00:00 +0000</lastBuildDate>
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<item>
<title>Talks & Teaching</title>
<link>https://jakob.schwalb-willmann.de/talks/</link>
<pubDate>Mon, 20 Nov 2023 23:02:58 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/talks/</guid>
<description>Teaching at the AniMove Science School 2019 at Yale University, USA Since 2019, I have a teaching position at the University of Würzburg. In addition, I have been teaching at the AniMove Science Schools for several years. Find out about my talks and teaching below.
2023 Seminar “Introduction into programming and geo-statistics”, EAGLE MSc. Basics of R &amp; QGIS; version control using git; R in comparison to other languages (interpreter vs.</description>
</item>
<item>
<title>Publications</title>
<link>https://jakob.schwalb-willmann.de/publications/</link>
<pubDate>Mon, 20 Nov 2023 23:02:57 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/publications/</guid>
<description>“An Introduction to Spatial Data Analysis” helps beginners getting started working with spatial data in QGIS and R. Wegmann, M.; Schwalb-Willmann, J.; Dech, S. (2020). An Introduction to Spatial Data Analysis: Remote Sensing and GIS with Open Source Software. Exeter, UK. Pelagic Publishing. ISBN: 9781784272135.
Schwalb-Willmann, J.; Remelgado, R.; Safi, K.; Wegmann, M. (2020). moveVis: Animating movement trajectories in synchronicity with static or temporally dynamic environmental data in R. Methods Ecol Evol.</description>
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<item>
<title>Projects</title>
<link>https://jakob.schwalb-willmann.de/projects/</link>
<pubDate>Mon, 20 Nov 2023 23:02:56 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/projects/</guid>
<description>Migration of White Storks, tracked between 2011 and 2017 by the Max Planck Institute of Animal Behavior, on top of a dynamic NASA Blue Marble background representing global seasonality, animated using moveVis. © 2023 Jakob Schwalb-Willmann Scientific PhD (ongoing) – Research project on the “Potentials of animal-environment interactions for remote sensing research”, supervised by Prof. Dr. Stefan Dech (Earth Observation Center at the German Aerospace Center, DLR) and Prof. Dr.</description>
</item>
<item>
<title>Imagery</title>
<link>https://jakob.schwalb-willmann.de/imagery/</link>
<pubDate>Mon, 20 Nov 2023 23:02:55 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/imagery/</guid>
<description> This is a loose, irregularly updated collection of images that I have taken. All images below are shared under the Creative Commons license CC-BY-SA, allowing you to use, share and modify them for whatever purpose under the conditions that (a) you credit the original source and (b) if you remix, transform, or build upon the material, you distribute it under the same license as the original. The Svalbard Satellite Data Receiving Ground Station, near Longyearbyen, Spitsbergen, 2015 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA The Icy Slopes of Sassenfjorden Fjord, Svalbard, 2015 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA The Nordenskjold Glacier’s Terminus, Svalbard, 2015 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA The Adventfjorden and Isfjorden Fjords, Svalbard, 2015 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA A Lizard up close, 2014 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA Birds, 2014 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA A Flock, 2014 – Creator: Jakob Schwalb-Willmann; some rights reserved under CC-BY-SA </description>
</item>
<item>
<title>How to create an Ubuntu Server auto-install image for a headless system</title>
<link>https://jakob.schwalb-willmann.de/blog/how-to-create-an-ubuntu-server-auto-install-image-for-a-headless-system/</link>
<pubDate>Mon, 20 Nov 2023 08:00:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/how-to-create-an-ubuntu-server-auto-install-image-for-a-headless-system/</guid>
<description>Introduction Installing Ubuntu onto a computer is not complicated: One just needs to boot a live image (e.g. from a USB drive or served via the network) and the user is prompted with the option to install Ubuntu onto the host’s internal hard drive. After a few steps, the installation is done and the system is ready.
However, this process is interactive, i.e. it requires user input to complete the installation.</description>
</item>
<item>
<title>How to mount a VirtualBox volume on a Linux host using the command line</title>
<link>https://jakob.schwalb-willmann.de/blog/how-to-mount-a-virtualbox-volume-on-a-linux-host-using-the-command-line/</link>
<pubDate>Fri, 10 Nov 2023 08:00:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/how-to-mount-a-virtualbox-volume-on-a-linux-host-using-the-command-line/</guid>
<description>Introduction VirtualBox is a widely used virtualization software that allows you to install and run entire operating systems as virtual machines (VMs) on a host system. For this, one can create virtual hard disks that are physically stored on the host, e.g. as dynamically expanding .vdi or .vmdk image files. VirtualBox attaches these disks to the respective VM so that the VM can mount them as if they were physical devices and use them to store volumes on it, e.</description>
</item>
<item>
<title>The odcr R package: Working with the Open Data Cube in R</title>
<link>https://jakob.schwalb-willmann.de/blog/working-with-odcr/</link>
<pubDate>Tue, 08 Mar 2022 19:29:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/working-with-odcr/</guid>
<description>The Open Data Cube is an open-source data management architecture explicitly tailored to store, serve and compute multi-dimensional Earth observation data products. It simplifies and speeds-up common user-data interaction procedures such as querying, indexing and processing Earth observation data compared to more traditional approaches of managing data (e.g. self-administered file systems). In addition, it eases collaboration on data, since Open Data Cube instances can be hosted on a server, e.</description>
</item>
<item>
<title>Visualizing movement trajectories in R using moveVis: Article published in the latest issue of Methods in Ecology and Evolution</title>
<link>https://jakob.schwalb-willmann.de/blog/movevis-published-in-mee/</link>
<pubDate>Mon, 11 May 2020 11:22:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/movevis-published-in-mee/</guid>
<description>Figure 1: Migratory movements of white storks Ciconia ciconia on a Mapbox satellite base map This month, our open-access paper on visualizing movement trajectories in R using moveVis has been published in the latest issue of Methods in Ecology and Evolution. The article describes the moveVis user functions, explains their technical implementation, provides use cases and discusses its strengths and limitations.
The visualization of movement trajectories sometimes is not easy.</description>
</item>
<item>
<title>The 2019 PhD colloquium at DLR's Earth Observation Center (EOC) in Oberpfaffenhofen</title>
<link>https://jakob.schwalb-willmann.de/blog/phd-colloquium-2019/</link>
<pubDate>Fri, 06 Dec 2019 08:00:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/phd-colloquium-2019/</guid>
<description>Figure 1: This year’s attendees of our annual PhD colloquium at EOC in Oberpfaffenhofen. Last Thursday, on November 28th, 2019, our annual PhD colloquium took place at the Earth Observation Center (EOC) at DLR in Oberpfaffenhofen. As every year, the current PhD students of Prof. Dr. Stefan Dech met to present the concepts and statuses of their PhDs and to discuss their approaches and ideas within a larger group. As last year, the presentations provided interesting insights into the accomplishments and challenges of the PhD projects and showed the scientific progress that has been made during this last year.</description>
</item>
<item>
<title>The 2018 PhD colloquium at DLR's Earth Observation Center (EOC) in Oberpfaffenhofen</title>
<link>https://jakob.schwalb-willmann.de/blog/phd-colloquium-2018/</link>
<pubDate>Thu, 15 Nov 2018 08:00:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/phd-colloquium-2018/</guid>
<description>Figure 1: This year’s attendees of our annual PhD colloquium at EOC in Oberpfaffenhofen. Yesterday, on November 14th, 2018, the annual PhD colloquium of PhD candiates supervised by Prof. Dr. Stefan Dech met at the Earth Observation Center (EOC) at DLR in Oberpfaffenhofen to talk about their PhD topics and statuses. Each PhD candidate presented her or his PhD concept and status and addressed challenges and successes of the past year, followed by a discussion with the present candidates and supervisors.</description>
</item>
<item>
<title>Spectral unmixing in R using RStoolbox</title>
<link>https://jakob.schwalb-willmann.de/blog/spectral-unmixing-using-rstoolbox/</link>
<pubDate>Thu, 15 Mar 2018 08:12:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/spectral-unmixing-using-rstoolbox/</guid>
<description>Recently, I finished the development of the first version of a spectral unmixing function being part of RStoolbox, an R package offering numerous tools for remote sensing analysis written by Benjamin Leutner. The multiple endmember spectral mixture analysis (mesma) function makes it possible to unmix multi- and hyper-spectral imagery by sets of spectral endmember profiles.
Figure 1: The RStoolbox::mesma() workflow. For this, a non-negative least squares (NNLS) solver was implemented.</description>
</item>
<item>
<title>Visualizing migratory movement of Turkey Vultures and NDVI using moveVis</title>
<link>https://jakob.schwalb-willmann.de/blog/turkey-vulture-animation-using-movevis/</link>
<pubDate>Wed, 11 Oct 2017 08:12:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/turkey-vulture-animation-using-movevis/</guid>
<description>Figure 1: An Eastern Turkey Vulture (C. a. septentrionalis) in flight (Canada). Source: Peter K Burian/CC BY-SA The Turkey Vulture (Cathartes aura) is the most widespread scavenging bird on the american continents, ranging from southern Canada to the tip of South America. Since 2003, the Hawk Mountain Sanctuary is collecting movement data of Turkey Vultures to investigate their migration behaviours, using radio tags monitored by satellite. 21 Turkey Vultures have been tracked during that period of time.</description>
</item>
<item>
<title>Visualizing the movements of Procellariiformes and Sea Surface Temperature using moveVis</title>
<link>https://jakob.schwalb-willmann.de/blog/procellariiformes-animation-using-movevis/</link>
<pubDate>Wed, 13 Sep 2017 08:00:00 +0000</pubDate>
<guid>https://jakob.schwalb-willmann.de/blog/procellariiformes-animation-using-movevis/</guid>
<description>Figure 1: An Albatross in the air. Source: pexels.com In the framework of the AniMove summer school 2017, the moveVis R package was introduced to the participants, resulting in several likewise interesting and beautiful animal movement animations. The shown animation displays the movement of Procellariiformes near Marion Island, South Africa, against the multi-temporal, daily NOAA sea surface temperature product G1SST. It was created by Tegan Carpenter-Kling, who is a PhD candidate within the Marine Apex Predator Research Unit (MAPRU) based at Nelson Mandela University in Port Elizabeth, South Africa.</description>
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