@article{FoehrderMundSpathelf2021, author = {Foehrder, Torben and Mund, Jan-Peter and Spathelf, Peter}, title = {Advantages of 360° Virtual Forest Tours to Supplement Academic Forestry Education}, series = {GI_Forum}, volume = {9}, journal = {GI_Forum}, number = {2}, publisher = {Verlag der {\"O}sterreichischen Akademie der Wissenschaften}, issn = {2308-1708}, doi = {10.1553/giscience2021_02_s34}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:eb1-opus-5179}, pages = {34 -- 44}, year = {2021}, abstract = {360° virtual forest tours (VFTs), created by state-of-the-art virtual reality technology, contribute to the progression of academic e-learning and forest management. The article proposes a conceptual framework for 360° VFT production and use to supplement field courses. Reflective insights into the authors' own learning process in the production of 360° VFTs, and a consideration of the general challenges of the medium are also presented. To conclude, the article summarizes the advantages of 360° VFTs for forestry education in an academic context.}, language = {en} } @article{EstevesdeCarvalhoMelodeMatosUmbelinoetal.2022, author = {Esteves de Carvalho, Luiza Marina and Melo, Alessandra and de Matos Umbelino, Glauco Jos{\´e} and Mund, Jan-Peter and Gomes dos Santos, Jhonathan and Rosette, Jacqueline and Silveira, Daniel and Gorgens, Eric Bastos}, title = {Charcoal heaps volume estimation based on unmanned aerial vehicles}, series = {Southern Forests: a Journal of Forest Science}, volume = {83}, journal = {Southern Forests: a Journal of Forest Science}, number = {4}, publisher = {Taylor \& Francis}, issn = {2070-2620}, doi = {10.2989/20702620.2021.1997067}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:eb1-opus-5181}, pages = {303 -- 309}, year = {2022}, abstract = {The charcoal stock in a forestry business is controlled based on the theoretical capacity of the masonry ovens (input) and shipped trucks (output). During the year, the company must monitor the stock for accountability reports and internal governance. This paper proposes a more efficient and precise survey method that overcomes the challenges of the common monitoring system in Brazil. In this study, a monitoring method based on digital stereoscopy from UAV images was implemented and evaluated. The results were compared with those of the traditional topographic survey based on RTK equipment. A multi-engine UAV, with an integrated global navigation satellite system (GNSS) and real-time kinematic positioning (RTK) equipment was used to fly over and survey a masonry oven complex containing eight charcoal heaps. Two stereoscopic processing methods were applied: (1) very low quality and (2) high quality to image alignment, reconstruction of a dense cloud, facet count and a three-dimensional mesh creation. Low-quality products showed geometric deformities when compared to high quality, but resulted in estimations similar to the topographic survey. Results indicated that the volume estimation of the charcoal heaps using UAV derived orthomosaics can replace the conventional method of GNSS RTK surveys with considerable gains in stockpile volume accuracy, inventory frequency and labour safety. The high quality processing method registered improvements in geometric precision and accuracy.}, language = {en} } @inproceedings{MohiuddinMund2022, author = {Mohiuddin, Gulam and Mund, Jan-Peter}, title = {Cooling Effect of Urban Green Infrastructure in Urban Areas: A Study using Land Surface Temperature}, series = {Living Planet Symposium 2022}, booktitle = {Living Planet Symposium 2022}, doi = {10.13140/RG.2.2.27721.42083}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:eb1-opus-5193}, pages = {1}, year = {2022}, abstract = {The poster presents the findings from the study titled "Cooling Effect of Urban Green Infrastructure in Urban Areas: A Study using Land Surface Temperature". The poster was presented on 27 May 2022 at the Living Planet Symposium 2022 in Bonn (Germany).}, language = {en} } @inproceedings{MohiuddinMund2022, author = {Mohiuddin, Gulam and Mund, Jan-Peter}, title = {Statistical Relation between Vegetation Cover and Land Surface Temperature in Phnom Penh City}, series = {Remote Sensing for Urban Planning and Management}, booktitle = {Remote Sensing for Urban Planning and Management}, year = {2022}, language = {en} } @article{MohiuddinMundRahaman2023, author = {Mohiuddin, Gulam and Mund, Jan-Peter and Rahaman, Kazi Jahidur}, title = {Detection of Urban Expansion using the Indices-Based Built-Up Index Derived from Landsat Imagery in Google Earth Engine}, series = {GI_Forum}, journal = {GI_Forum}, doi = {10.57741/opus4-829}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:eb1-opus-8294}, pages = {18-31}, year = {2023}, abstract = {Urban expansion, particularly in the global south, has brought numerous environmental consequences which require regular investigation. The current study assessed the growth of built-up areas in the Chbar Ampov district (Phnom Penh, Cambodia) using the Indices-Based Built-Up Index (IBI) derived from Landsat 8 satellite imagery. We applied the IBI method to satellite images from 2013 to 2021 to determine changes in the built-up area over time and their correlation with land surface temperature (LST). The research revealed generally consistent urban expansion (1.68 square kilometres per year) in the study area within the period. Despite minor inconsistencies due to temporary land-use changes and cloud interference, the results support the study's major conclusions. The findings reinforce the necessity of meticulous monitoring and management of urban expansion. Dynamic analysis and practical research methods can contribute to sustainable urban development practices, thus ensuring a balance between human progress and environmental preservation.}, language = {en} }