SARS-CoV-2 Cartograms

Update 31.03.2020 If we look at the original data and plot infections on the usual spatial reference polygons the map would look like in the following figure (1 dot equals 5 infections): If we now look at the cartogram processed (reprojected) data set we notice that the density in all polygons is now the same. […]

Buchen in Not

A short article about our work in the Hainich National Park area on the beech degradation analysis appeared in the Journal of the Friedrich-Schiller-University Jena “Lichtgedanken” in Edition 7. You can read the PDF version here: http://www.lichtgedanken.uni-jena.de/magazinmedia/Aktuelle+Ausgabe/Lichtgedanken+07+%E2%80%93+Zukunft+ohne+Wachstum-download-1.pdf or the HTML version here: https://www.lichtgedanken.uni-jena.de/Ausgabe_07_Buchen_in_Not-path-140,5.html There will be also an english language version soon.

RTK Precision Mapping of Wild Boar Maize Field Damages

As a side product of our Hainich NP forest monitoring program in summer/autumn 2019 we also mapped maize fields west of the Hainich National Park region. These fields are heavily damaged by wild boar regularly and the change is detectable already after days. The RTK Phantom that we used in September for the maize fields […]

Late October ’19 Flight Campaign in the Hainich NP

Cold air and short illumination time frame – thats what dominated the flight campaign at the 31st of October 2019 in the Hainich National Park. Originally flights on all test sites were planned but this was hardly possible in this short time frame without enough light. So I covered the Huss area and the West […]

MDR Doku with EO contribution

A nice MDR Wissen Doku has been published with contributions from our Hainich National Park beech declining mapping project. We explain some of the concepts how we use copter technology to analyze Sentinel-2 satellite data of the forest decline in the Hainich forest region. https://www.mdr.de/video/mdr-videos/d/video-338706.html

Wild Boar Damage Mapping in Maize Fields

As part of the disturbance mapping project we captured 300 ha of maize field area to investigate wild boar damages in the direct neighborhood of the Hainich National park area – a cooperation of the Earth observation department of FSU Jena, DLR Jena and NLPV Hainich. Wild boar damage mapping in agricultural areas – the […]

UPDATE: Flying for the Beech Trees II

Since July we have been very active covering the forest change in the Hainich National park region using the Phantom 4 Pro copter and the new Phantom 4 RTK (P4R). A project in cooperation with the Hainich national park administration, ThüringenForst and DLR Institute for Data Science Jena. First flights over 5 test areas were […]

Flying for the Beech Trees

Within the last few weeks we have been busy together with DLR Jena (Dr. C. Thiel) creating ortho mosaic coverages from Phantom 4 Pro data for various regions in the Hainich National parc area covering approximately 400ha area. The undisturbed forested area of the Hainich National parc seems to undergo some severe changes. The beech […]

Cluster & Batch Processing in Agisoft Metashape

20 days! – better/faster hardware anyone? Processing large quantities of image files from UAV flight campaigns in Agisoft is sometimes very time consuming and usually should be done in a  cluster environment with distributed nodes doing the heavy pixel lifting. Sometimes even a cluster setup can be limiting when the subprocess needs more RAM memory […]

Geodäten “erobern” den Luftraum

Naja der Titel ist etwas schräg, aber das Meeting war klasse, wer will kann die Konferenz-Proceedings jetzt hier herunterladen: https://geodaesie.info/sr/uav-2019-geodaeten-erobern-den-luftraum/8337/1951   “Unbemannte Luftfahrzeuge (engl. Unmanned Aerial Vehicles, UAV) haben in den letzten Jahren zur Erweiterung des Aufgabenspektrums und einer effizienteren Erfüllung von geodätischen Aufgaben beigetragen. Eine Vielzahl an UAV-Systemen ist inzwischen verfügbar. UAV sind Gegenstand […]