Presentation Abtracts

Studying Geodesy at University of Environmental and Life Sciences in Wrocław, Poland by Emilia Biczel and Wiktoria Kowalczyk

In order to perform geodesic work, knowledge of many fields is necessary. Therefore, we would like to present how learning geodesy is like in Poland, especially at our University. We would like to present some subjects that are the most demanding and at the same time the most important for our future career.
Students gain theoretic knowledge and the practical skills to elaborate sets of surveying data attending class ‘Adjustment Theory’ which includes the standard methods of geodetic observation adjustment, based on the Method of The Least Squares. We are obtaining knowledge of the law of error propagation and its practical use in miscellaneous geodetic tasks.
Class ‘Geodetic Reference Frames’ allows us to gain knowledge of theoretical and practical knowledge related to geodetic reference systems and their realizations. In particular, we learn about the relationships between reference systems: International Celestial Reference System (ICRS), global International Terrestrial Reference System (ITRS), and regional European Terrestrial Reference System 89 (ETRS89). It helps us understand the theoretical principles of the realization of reference frames using techniques of satellite and space geodesy.
Cadastral surveying helps us understand the essence of cadastral measurements, scope of work and substantive and legal bases, rules for determining the boundaries of real estate, resumption of boundaries, accepting property boundaries in subdivision procedures, delimitation of real estate, geodetic division of real estate, merging and division of urban real estate, merging and division of real estate, consolidation and division real estate, divisions to use, preparing documentation for legal purposes.
Above-mentioned subjects are just a part of our education process. Even though they’re challenging and require a lot of hard work, we find them very interesting and essential for our future job. We would love to learn about classes you take at your University.

CENAGIS Spatial Big Data Infrastructure – Integrated R&D environment for advanced geodata analyses by Kamil Choromański

The volume of spatial data acquired is increasing every year. As the capabilities of measurement tools and modern spatial data acquisition techniques improve, the rate of growth will accelerate. Extraction of valuable information from such big data resources requires correspondingly larger computing power and tools dedicated to processing large data sets. This issue is addressed by the CENAGIS computing system developed at the Warsaw University of Technology. It is equipped with large computational capacities which can be utilized in a distributed manner with use of a unique programming environment based on the Python programming language. The proposed system is capable of processing large vector, raster and point cloud data resources. This opens up the possibility of performing advanced spatial analyses using multi-source data on a national and bigger scale. During the presentation, the main components and mechanisms used in the computing environment will be presented, along with a few examples of analyses that can be performed using it.

Creating a 3D model of a rock wall at Świerki quarry from multisensorial data by Paweł Czernic and Łukasz Wilk

Our presentation aims to demonstrate the process of integrating multisensorial data to create a 3D model of a rock wall located in a Świerki quarry. The data we used was obtained from the Unmanned Air Vehicle (equipped with DJI P1 camera and DJI L1 LiDAR sensor) and Terrestrial Laser Scanning. With UAV data, it has been possible to acquire data beyond the reach of TLS, but the integration of data having different accuracies and densities requires a particular workflow, which we will present in our presentation. The final result of the processed data will be a coherent 3D model of the studied object.
In order to integrate, consistent georeferencing for signaled control points is necessary for all data types. For this purpose, hybrid measurements with total station/GNSS techniques were performed. Reference accuracy is fundamental to data integration and cyclic measurements to show variability over time, which is very interesting to other areas of science (geology, geomorphology, volcanology) and industry (mining, construction).
Our talk will also show the differences between the acquired multisensorial data and discuss their advantages and disadvantages. Different ways of visualizing data and their impact on user perception will be shown in terms of data visualization.

Visualization of Mountain Hiking Trails using Geoinformatic Tools by Natalia Dziuba and Małgorzata Zontek

The development of computer technology has brought many advantages to cartography. On the one hand, conventional paper cards can be processed faster and more accurately. On the other hand, it enables the creation of new cartographic presentations. Interactive, dynamic and three-dimensional models allow users to present important features of spatial objects in a complete and understandable way. On the other hand, new cartographic representations can be created. Interactive, dynamic and three-dimensional models allow users to present the essential features of spatial objects in a complete and comprehensible way. The paper presents examples of visualization of hiking trails as one of the tasks of mountain cartography. The visualization used the Mapbox Studio platform with the latest Mapbox Maps SDK v10, which enables the creation of 3D maps for mobile devices running the Android operating system. Presentation of selected massifs and mountain trails was realized in Android Studio. The paper presents the potential possibilities of 3D visualization of mountain trails using geoinformatics tools and their comparison in terms of functionality.

How can geomatics optimise port management? by Tereza Ivaylova Ilieva

For thousands of years ships have been used for the transport of people and goods and ports have always played an important role. Questions such as: where a ship is, which areas of the port has it passed through, is there a possibility that the ship will run aground, when is it going to reach port, has it caused a fuel leak, can be answered thanks to Geomatics.
Nowadays, with the increase in traffic, it is essential to organise, manage and control ships more efficiently and quickly. But all this traffic can have a major impact on our environment, which is why geographical change and water quality controls must also be carried out.
Thanks to automatic identification systems (AIS) we can locate ships at all times and monitor maritime traffic. By dividing the port into specific zones, it is possible to automatically detect vessel events such as arrival at the port, berthing, unberthing and refuelling among others.
In order to comply properly with environmental regulations, bathymetric controls are carried out and satellite images can be used to monitor the evolution of the coastline and the appearance of possible pollution.
Likewise, the port area is a very active area that varies a lot over time. Proper management is essential and it is helpful to be able to visualise all the port’s assets and their condition.

Evaluation of land use land cover change around Istanbul airport between years of 2011-2021 by Kaner Levent

This study aims to comparatively evaluate Land Use Land Cover (LULC) change in the collective impact area of Istanbul Airport and Northern Marmara Motorway and its compliance to 2009 Environmental Management Plan and proposed 2021 Modification to Environmental Management Plan. Pixel based, maximum likelihood supervised classification method is used to classify Landsat images for five general classes. The first phase of the study is the data collection which involves the construction of a geographic information system (GIS). The second phase is data processing. In the final stage, change detection analysis results are shown and comparatively evaluated with 2009 Plan and 2021 Plan Modification. The most significant result achieved from this study is that forest and green areas experienced over 4500 ha net loss, out of which 130 ha to meet 3rd Airport construction and material needs from newly opened quarries.

AquaLab – Geographic Information and Notification System for Water Reservoirs by Paulina Raeva

The goal of the presentation is to present the project AquaLab that won the Environment, Energy and Health Challenge by DLR at the Copernicus Masters competition in 2020.
The team of AquaLab consists of friends with similar education in geodetic engineering. The idea behind the project occurred at the beginning of 2020 when more than 100.000 inhabitants in Bulgaria were left without running water for more than 6 months. The water reservoir Student started drying out in June 2019. The decreasing levels were noticed in November 2019.
AquaLab is a smart remote managerial system (GIS) for water reservoirs. It is based on Earth Observation Data (EO) and in-situ measurements. We use satellite data from the Copernicus Programme, mainly radar and optical data from Sentinel-1 and Sentinel-2. We have established a work-frame on how to compute the water surface level and correlate the results with volumetric open-data provided by the government.
The web-based platform is intended to be free and available to all users interested in the topic. We want such data to be open to the society and raise the necessity of open EO and GIS data.

Geodata as part of a Geospatial Knowledge Graph: Workflows and Tools on the example of Irish Ogham Stones by Florian Thiery

The Linked Open Ogham Data Project is a project created and applied by the Research Squirrel Engineers Network since 2019. The project received funding from the Open Science Fellows Program 2020/21 of Wikimedia Deutschland. Ogham stones are Early Mediaeval stones inscribed with the Ogham script created between the 6th and 9th centuries AD. Linked Open Ogham Data primarily aims at the digitisation and publication of the analogue Ogham stone catalogues “Corpus inscriptionum Insularum Celticarum” (CIIC) by Macalister, “A Guide to Ogam” by D. MacManus, as well as the online databases “CISP” and “Ogham in 3D”. This is done by using semantic modelling and techniques of Linked Open Data (LOD) to create a huge Knowledge Graph. Ogham Stones, their sites and distribution have always geospatial components which serves as central nodes. This presentation gives an overview on the semantic modelling of Irish Ogham Stones, especially on geospatial information using the W3C GeoSPARQL standard, as well as the community hub Wikidata. Moreover, workflows and little tools (as known as Little Minions) to create, update and query
the data will be introduced. Furthermore, the data will be analysed using the SPARQLing Unicorn QGIS Plugin, an Open Source plugin for QGIS.

Isovist Fingerprinting as a new way of Indoor Localisation by Giorgos Triantafyllou

While most concepts related to localisation and navigation of outdoors environments are already pretty well derived from various researches, mechanisms and softwares / Applications, the indoor environment remains a significantly unexplored area. Although there are already some methods available for the indoor localisation, this presentation main objective will be to show a new one and provide an initial investigation on how the Isovist, visibility graphs and Space syntax concepts can work together to deliver a new method and solution for localisation and possibly route planning/navigation on indoor environments. The questions that are answered are “To what extent can isovist support Indoor Localisation”, “How to create an Isovist fingerprinting to a radio map” and “Is it possible to make it usable as a user app”. For all these be answered a specific methodology have been followed which includes a complete initial proof of concept and several results from real life cases.