TY - JOUR A1 - Mohiuddin, Gulam A1 - Mund, Jan-Peter T1 - Application of Land Surface Temperature Analysis in Urban Green Spaces: Case Studies from South Asia JF - GI_Forum N2 - This paper demonstrates the use of remote sensing in planning urban green spaces (UGSs). UGSs emerged as a popular solution to combat the effects of Urban Heat Island, especially in tropical cities. UGS projects often need to identify priority implementation areas due to limited funding for UGSs. This study includes two Asian cities, namely Phnom Penh (Cambodia) and Chittagong (Bangladesh). It is not comparative, but it has identified priority administrative areas for future UGSs in both cities. We used Landsat 8 data and the remote sensing technique Land Surface Temperature (LST) analysis using radiance, temperature brightness and emissivity. LST data were then intersected with the administrative boundaries of the study areas. The identification of priority administrative areas for UGS considered both the area coverage and the percentage of coverage in terms of maximum LST within the administrative units’ boundaries. The result found 8 and 10 administrative units to be hotspots for UGSs, for Phnom Penh and Chittagong respectively. The proposed method will be useful to both government and non-government organizations alike, especially in tropical countries. KW - Land Surface Temperature (LST); urban green spaces (UGS); remote sensing Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-5168 SN - 2308-1708 VL - 9 IS - 2 SP - 202 EP - 214 PB - Verlag der Österreichischen Akademie der Wissenschaften ER - TY - JOUR A1 - Foehrder, Torben A1 - Mund, Jan-Peter A1 - Spathelf, Peter T1 - Advantages of 360° Virtual Forest Tours to Supplement Academic Forestry Education JF - GI_Forum N2 - 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. KW - virtual forest tours; forestry education; virtual reality; e-learning Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-5179 SN - 2308-1708 VL - 9 IS - 2 SP - 34 EP - 44 PB - Verlag der Österreichischen Akademie der Wissenschaften ER - TY - JOUR A1 - Esteves de Carvalho, Luiza Marina A1 - Melo, Alessandra A1 - de Matos Umbelino, Glauco José A1 - Mund, Jan-Peter A1 - Gomes dos Santos, Jhonathan A1 - Rosette, Jacqueline A1 - Silveira, Daniel A1 - Gorgens, Eric Bastos T1 - Charcoal heaps volume estimation based on unmanned aerial vehicles JF - Southern Forests: a Journal of Forest Science N2 - 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. KW - charcoal production; forest plantation; pig iron; UAV;volume heaps Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-5181 SN - 2070-2620 SN - 2070-2639 VL - 83 IS - 4 SP - 303 EP - 309 PB - Taylor & Francis ER - TY - CHAP A1 - Mohiuddin, Gulam A1 - Mund, Jan-Peter T1 - Cooling Effect of Urban Green Infrastructure in Urban Areas: A Study using Land Surface Temperature T2 - Living Planet Symposium 2022 N2 - 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). Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-5193 ER - TY - CHAP A1 - Mohiuddin, Gulam A1 - Mund, Jan-Peter T1 - Statistical Relation between Vegetation Cover and Land Surface Temperature in Phnom Penh City T2 - Remote Sensing for Urban Planning and Management Y1 - 2022 ER - TY - JOUR A1 - Mohiuddin, Gulam A1 - Mund, Jan-Peter A1 - Rahaman, Kazi Jahidur T1 - Detection of Urban Expansion using the Indices-Based Built-Up Index Derived from Landsat Imagery in Google Earth Engine JF - GI_Forum N2 - 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. KW - urban expansion, change detection, remote sensing Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-8294 ER -