Preliminary analysis of the forest health state based on multispectral images acquired by Unmanned Aerial Vehicle

Czapski, Paweł; Kacprzak, Mariusz; Kotlarz, Jan; Mrowiec, Karol; Kubiak, Katarzyna; Tkaczyk, Miłosz

doi:10.1515/ffp-2015-0014

Cited by 14 publications

(12 citation statements)

References 2 publications

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“…The forest properties were analyzed in 15 different habitats, which were selected on the basis of Landsat imagery, using Forest Data Bank (FDB) maps showing forest divisions according to dominant species as a reference. The regions of interest included Q. robur specimens selected for the HESOFF project: DBB 126, DBB 96, DBB 130c, and DBB 130a ( Figure 1) [63]. The other regions were selected to cover the ortho photomaps to a maximum extent and were derived from photogrammetric products generated in the project [64].…”

Section: Determination Of Regions Of Interest (Rois)mentioning

confidence: 99%

Species Diversity of Oak Stands and Its Significance for Drought Resistance

Kotlarz

Nasilowska

Rotchimmel

et al. 2018

Forests

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Drought periods have an adverse impact on the condition of oak stands. Research on different types of ecosystems has confirmed a correlation between plant species diversity and the adverse effects of droughts. The purpose of this study was to investigate the changes that occurred in an oak stand (Krotoszyn Plateau, Poland) under the impact of the summer drought in 2015. We used a method based on remote sensing indices from satellite images in order to detect changes in the vegetation in 2014 and 2015. A positive difference was interpreted as an improvement, whereas a negative one was treated as a deterioration of the stand condition. The Shannon-Wiener species diversity was estimated using an iterative principal component analysis (PCA) algorithm based on aerial images. We observed a relationship between the species indices of the individual forest divisions and their response to drought. The highest correlation between the index differences and the Shannon-Wiener indices was found for the Green Normalized Difference Vegetation Index (GNDVI) index (+0.74). In addition, correlations were observed between the mean index difference and the percentage shares in the forest divisions of species such as Pinus sylvestris L. (P. sylvestris) (+0.67 ± 0.08) and Quercus robur L. (Q. robur) (−0.65 ± 0.10). Our results lead us to infer that forest management based on highly diverse habitats is more suitable to meet the challenges in the context of global climatic changes, characterized by increasingly frequent droughts.

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Section: Determination Of Regions Of Interest (Rois)mentioning

confidence: 99%

Species Diversity of Oak Stands and Its Significance for Drought Resistance

Kotlarz

Nasilowska

Rotchimmel

et al. 2018

Forests

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“…HESOFF project assumed the regular implementation of photographic missions using, among others, unmanned aerial vehicle (UAV) and the QUERCUS.6 multi-spectral camera [8]. Acquired images were used to assess the condition of oak stands [9,10]. Aerial and satellite images, in turn are the basis for the analysis of the natural environment, and available raster images enable, among others, classification of land cover, water quality study, biomass analysis including quality of stands and development phase of crops [11].…”

Section: Preparations For Missions and Flight Executionmentioning

confidence: 99%

Preparation and Implementation of a Test Flight of Lightweight, Unmanned Stratospheric Balloon with Gopro Camera Mounted and Analysis of Acquired Material

Skoneczny

2019

Transactions on Aerospace Research

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Publication contains a description of the preparation and the implementation of a test flight of a stratospheric balloon with a mounted camera GoPro Hero3. Description includes: used equipment, its parameters, role in the success of the mission and the difficulties and limitations that the project team encountered during the preparation and implementation of the flight. The mission was attended by a team of six engineers and scientists from the Remote Sensing Division, who were also involved in the implementation of the HESOFF project. One of the main goals of the HESOFF project was to obtain aerial images on the Krotoszyńska Plate (woj. wielkopolskie) using the Unmanned Aerial Vehicle (UAV) and to carry out remote monitoring of oak stands. The primary goal of an experimental balloon flight was to check the technical operational capability and gain experience in planning and implementing this type of project. During the balloon raising, the video material was acquired in the form of a recording, which later was analyzed. On the basis of the collected information, the conclusions regarding the possibility of implementing a long endurance flight in the stratosphere, illustrating (using a multisensor platform) research surfaces of the HESOFF project were presented. The stages of implementation of the presented mission were divided into following parts: preparation of the flight with the completion of equipment and necessary documents (flight permission), proper flight realization, understood as the release of the balloon and identification of the place where the equipment landed, as well as analysis and presentation of the results.

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“…Over the next few years, the Space Technology Center was established, which in 2017 employs 80 employees implementing projects under four plants. The Department of Remote Sensing is involved in works that include both image acquisition and operational processing [1,2,3,5]. Photographs are made with the use of commercial equipment and the Multispectral System (6-ranges) developed for the needs of the HESOFF project.…”

Section: Meteor 1 Rocket and Meteor 2k Rocketmentioning

confidence: 99%

Space technology at the Institute of Aviation

Loroch

Okniński

Rarata

et al. 2018

TO - PK

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This paper gives a brief summary of the Institute of Aviation's activities in space technology. Review of historical achievements and latest developments are described. Scope of present work of Space Technology Center and key projects are discussed, that include rocket and satellite technologies. Importance of space technologies in Institute of Aviation's development strategy and their crucial role for safety and independence of the state is underlined. Possibilities and future use of the developed technologies are pointed out.

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Preliminary analysis of the forest health state based on multispectral images acquired by Unmanned Aerial Vehicle

Cited by 14 publications

References 2 publications

Species Diversity of Oak Stands and Its Significance for Drought Resistance

Species Diversity of Oak Stands and Its Significance for Drought Resistance

Preparation and Implementation of a Test Flight of Lightweight, Unmanned Stratospheric Balloon with Gopro Camera Mounted and Analysis of Acquired Material

Space technology at the Institute of Aviation

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