Gunter Zeug, C. Bielski, Tobias Steber, E. Kindermann, Mira Weirather
Cities are unique living entities that evolve and require care to thrive. Earth observation of the urban environment is therefore essential to keep a watchful eye on their condition. In-situ measurements are also needed to provide details that cannot be easily derived from remotely sensed imagery. Green infrastructure and the ecosystem services they provide play an important role for the wellbeing of city populations and provide resilience against the effects of climate change. EO is essential for mapping the relevant details to produce information on which to base healthy city evolution.
{"title":"GreenCities - Monitoring Cities for Nature Based Urban Solutions and Ecosystem Services / GreenCities - Erdbeobachtung für urbane, naturbasierte Lösungen und Ökosystemdienstleistungen","authors":"Gunter Zeug, C. Bielski, Tobias Steber, E. Kindermann, Mira Weirather","doi":"10.14627/537698033","DOIUrl":"https://doi.org/10.14627/537698033","url":null,"abstract":"Cities are unique living entities that evolve and require care to thrive. Earth observation of the urban environment is therefore essential to keep a watchful eye on their condition. In-situ measurements are also needed to provide details that cannot be easily derived from remotely sensed imagery. Green infrastructure and the ecosystem services they provide play an important role for the wellbeing of city populations and provide resilience against the effects of climate change. EO is essential for mapping the relevant details to produce information on which to base healthy city evolution.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89838159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Large cities are the centers of the modern society. These Cities not only have to provide goods and services for the daily needs for their residents, it is also important to offer vital vegetation in green spaces. Trees, bushes and ground cover (e. g. shrubs, grass) play an important role regarding urban climate. A sufficient amount of vegetation increases the well-being of the residents. In this study, 30 large cities of the EU countries Germany, France and Poland were examined for their vegetation. In a first step the urban areas were outlined, which was done on the basis of CORINE CLC data. The vegetation was calculated using optical satellite image data from Sentinel-2, all recorded in 2019. The Normalized Differentiated Vegetation Index (NDVI) was applied to that data. Positive NDVI values represent healthy vegetation; they were classified and analyzed into 10 classes. The result is a ranking of urban green vegetation fraction for these regions; the method may be applied as a template for all urban regions in the EU.
{"title":"Urbanes Grün und Stadtklima - Analyse von Vegetation in europäischen Großstädten / Vegetation and Urban Climate - Study of Vegetation in Large European Cities","authors":"M. Möller, Klaudia Bartlomiejczak","doi":"10.14627/537698016","DOIUrl":"https://doi.org/10.14627/537698016","url":null,"abstract":"Large cities are the centers of the modern society. These Cities not only have to provide goods and services for the daily needs for their residents, it is also important to offer vital vegetation in green spaces. Trees, bushes and ground cover (e. g. shrubs, grass) play an important role regarding urban climate. A sufficient amount of vegetation increases the well-being of the residents. In this study, 30 large cities of the EU countries Germany, France and Poland were examined for their vegetation. In a first step the urban areas were outlined, which was done on the basis of CORINE CLC data. The vegetation was calculated using optical satellite image data from Sentinel-2, all recorded in 2019. The Normalized Differentiated Vegetation Index (NDVI) was applied to that data. Positive NDVI values represent healthy vegetation; they were classified and analyzed into 10 classes. The result is a ranking of urban green vegetation fraction for these regions; the method may be applied as a template for all urban regions in the EU.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87008610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lukasz Rojek, Klaus Hehl, M. Möller, Markus Richter, Monika Bischoff-Schaefer
The R&D project PLANTSENS, funded by the Federal Ministry of Food and Agriculture (BMEL) and managed by the Federal Office for Agriculture and Food (BLE), runs for three years (FKZ 2815701615) and it focuses primarily on automated crop irrigation in the open field and protected areas (e. g. glasshouses). Water is one of the essential resources for all plants and absorbs in the shortwave and middle infrared spectrum. It has a major impact on plant growth and prospective yield. Within the framework of this project, a prototype of a photogrammetric measuring system for automated determination of the crop water demand will be developed. The digital imagery recorded by the multispectral camera system is processed and analysed in real-time for an automated irrigation procedure for plants with respect to their sites of growth. This paper explains the functions and the technical structure of this monitoring system.
{"title":"Netzwerkbasiertes Multi-Sensor-Messsystem für eine automatische Bewässerung von Nutzpflanzenbeständen im Gewächshaus (PLANTSENS) / Multi-sensor Network-based Measuring System for Automatic Irrigation of Crop Stands in Greenhouses (PLANTSENS)","authors":"Lukasz Rojek, Klaus Hehl, M. Möller, Markus Richter, Monika Bischoff-Schaefer","doi":"10.14627/537698014","DOIUrl":"https://doi.org/10.14627/537698014","url":null,"abstract":"The R&D project PLANTSENS, funded by the Federal Ministry of Food and Agriculture (BMEL) and managed by the Federal Office for Agriculture and Food (BLE), runs for three years (FKZ 2815701615) and it focuses primarily on automated crop irrigation in the open field and protected areas (e. g. glasshouses). Water is one of the essential resources for all plants and absorbs in the shortwave and middle infrared spectrum. It has a major impact on plant growth and prospective yield. Within the framework of this project, a prototype of a photogrammetric measuring system for automated determination of the crop water demand will be developed. The digital imagery recorded by the multispectral camera system is processed and analysed in real-time for an automated irrigation procedure for plants with respect to their sites of growth. This paper explains the functions and the technical structure of this monitoring system.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84553344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Floating Car Observers (FCO) detect and quantify the traffic occurring in front of a driving car. In our experimental setup, we mount a low-cost particulate matter (PM) sensor on a car in order to measure pm and use a dashcam to count vehicles driving in front of the car equipped with the sensor. Small particulate matter (measured as PM1 and PM2.5) emerges partly because vehicles whirl up the dust that is located on the pavement of streets. This case study shows correlations between measured PM1 and PM2.5 values and the number of cars in front of our testing vehicle.
{"title":"Quantifizierung des Umgebungsverkehrs eines Fahrzeuges durch die Messung von Straßenabrieb / Quantifying the Surrounding Traffic of a Car by Measuring the Road Abrasion of Vehicles","authors":"Christian Röger","doi":"10.14627/537698028","DOIUrl":"https://doi.org/10.14627/537698028","url":null,"abstract":"Floating Car Observers (FCO) detect and quantify the traffic occurring in front of a driving car. In our experimental setup, we mount a low-cost particulate matter (PM) sensor on a car in order to measure pm and use a dashcam to count vehicles driving in front of the car equipped with the sensor. Small particulate matter (measured as PM1 and PM2.5) emerges partly because vehicles whirl up the dust that is located on the pavement of streets. This case study shows correlations between measured PM1 and PM2.5 values and the number of cars in front of our testing vehicle.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84373964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laura Heym, Christian Werner, G. Innerebner, Patrick Kofler
The promotion of cycling requires targeted measures that can only be designed on the basis of a precise understanding of who cycles, when, how and why. To obtain this information, an interdisciplinary methodology was developed and exemplarily applied in the Salzburg area. The design-sociological investigation includes a survey based on the qualitative insights from expert interviews and creative workshops: The data from over a thousand participants served to identify clusters with distinctive behavioural patterns, which were described and illustrated as “cycling types” and completed by information on their spatial distribution. The four clusters are to be understood as stylised models. The central working hypothesis was that cyclists are a heterogeneous community which can be identified more clearly as such by means of typologisation. Thus, in an application test it was examined whether the types facilitate the understanding of different cycling-related attitudes.
{"title":"Mission Impossible: Typologisierung von Radfahrenden - ein Designsoziologischer Ansatz / Mission Impossible: Classifying Types of Cyclists - A Design- Sociological Approach","authors":"Laura Heym, Christian Werner, G. Innerebner, Patrick Kofler","doi":"10.14627/537698023","DOIUrl":"https://doi.org/10.14627/537698023","url":null,"abstract":"The promotion of cycling requires targeted measures that can only be designed on the basis of a precise understanding of who cycles, when, how and why. To obtain this information, an interdisciplinary methodology was developed and exemplarily applied in the Salzburg area. The design-sociological investigation includes a survey based on the qualitative insights from expert interviews and creative workshops: The data from over a thousand participants served to identify clusters with distinctive behavioural patterns, which were described and illustrated as “cycling types” and completed by information on their spatial distribution. The four clusters are to be understood as stylised models. The central working hypothesis was that cyclists are a heterogeneous community which can be identified more clearly as such by means of typologisation. Thus, in an application test it was examined whether the types facilitate the understanding of different cycling-related attitudes.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72682437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Based on the importance of digitalization in everyday life and the discussions about various dimensions of digitalization in geographical educational contexts, a seminar concept for teacher education is developed and presented. It considers different perspectives, approaches and challenges. The concept combines educational-theoretical, conceptual-technical as well as practical and method-oriented dimensions in an inverted-classroom design based on agile university teaching.
{"title":"Geographieunterricht digital - zur Konzeption eines kollaborativen Seminars zum Gestaltungsprozess von digitalen Lehr-Lernumgebungen / Digital Geography Education - Conception of a Collaborative Seminar Concept for the Design Process of Digital Teaching and Learning Environments","authors":"N. Raschke","doi":"10.14627/537698010","DOIUrl":"https://doi.org/10.14627/537698010","url":null,"abstract":"Based on the importance of digitalization in everyday life and the discussions about various dimensions of digitalization in geographical educational contexts, a seminar concept for teacher education is developed and presented. It considers different perspectives, approaches and challenges. The concept combines educational-theoretical, conceptual-technical as well as practical and method-oriented dimensions in an inverted-classroom design based on agile university teaching.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89815846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
After the progress in generalization-automation of topographic maps in the past decade, the demand for more comprehensive solutions for the generalization of categorical maps and data is growing. Recent harmonization of basic data sets of the Geological and Soil Survey of the Landesamt für Geologie, Rohstoffe und Bergbau Baden-Württemberg now enables a model-based derivation of data in generalized form for different target scales and purposes. A particular challenge is the implementation with existing functionality from available GI-software. The corresponding procedures and methods were reviewed and a solution approach has been developed. In this work, a practical process framework based on the FME-software was created using data from bedrock geology. The procedure was based on a hybrid solution approach, consisting of vectorand raster-based processing. A fully automated procedure for the generalization of model-based categorical data was developed, based on the implementation of generic vector transformers and the integration of the raster-based method of a cellular automaton. The process requires a hierarchical structure of the input data. That enables a semantic aggregation and includes the consideration of further thematic aspects by means of a dataspecific attribute enrichment.
{"title":"Verfahren zur automatisierten Generalisierung flächenhafter Geofachdaten / A Workflow for the Automated Generalization of Polygonal Data","authors":"Joachim Schuff","doi":"10.14627/537698003","DOIUrl":"https://doi.org/10.14627/537698003","url":null,"abstract":"After the progress in generalization-automation of topographic maps in the past decade, the demand for more comprehensive solutions for the generalization of categorical maps and data is growing. Recent harmonization of basic data sets of the Geological and Soil Survey of the Landesamt für Geologie, Rohstoffe und Bergbau Baden-Württemberg now enables a model-based derivation of data in generalized form for different target scales and purposes. A particular challenge is the implementation with existing functionality from available GI-software. The corresponding procedures and methods were reviewed and a solution approach has been developed. In this work, a practical process framework based on the FME-software was created using data from bedrock geology. The procedure was based on a hybrid solution approach, consisting of vectorand raster-based processing. A fully automated procedure for the generalization of model-based categorical data was developed, based on the implementation of generic vector transformers and the integration of the raster-based method of a cellular automaton. The process requires a hierarchical structure of the input data. That enables a semantic aggregation and includes the consideration of further thematic aspects by means of a dataspecific attribute enrichment.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84552077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dariia Strelnikova, Gernot Paulus, Sabine Käfer, Karl Anders, P. Mayr, H. Mader, Ulf Scherling, Rudi Schneeberger
Flow patterns are an important indicator that helps fish to discover fish ladders. This feasibility study investigates the possibility of a non-intrusive detection of surface flow patterns near a fish ladder in an Alpine river. The newly developed method concept involves the use of high-resolution drone based videos and the optical analysis method “Particle Image Velocimetry” (PIV). The flow patterns calculated with PIV are in good agreement with the hydraulic reference measurements, which were performed with the help of a propeller current meter. The results of this feasibility study can be seen as a first step towards the creation of an efficient and standardized methodology for flow analysis in the vicinity of fish ladders.
{"title":"Drohnenbasierte optische Ermittlung von heterogenen Oberflächenströmungsmustern in der Nähe von Fischaufstiegshilfen / Drone-based Optical Detection of Heterogeneous Surface Flow Patterns in the Vicinity of Fish Ladders","authors":"Dariia Strelnikova, Gernot Paulus, Sabine Käfer, Karl Anders, P. Mayr, H. Mader, Ulf Scherling, Rudi Schneeberger","doi":"10.14627/537698019","DOIUrl":"https://doi.org/10.14627/537698019","url":null,"abstract":"Flow patterns are an important indicator that helps fish to discover fish ladders. This feasibility study investigates the possibility of a non-intrusive detection of surface flow patterns near a fish ladder in an Alpine river. The newly developed method concept involves the use of high-resolution drone based videos and the optical analysis method “Particle Image Velocimetry” (PIV). The flow patterns calculated with PIV are in good agreement with the hydraulic reference measurements, which were performed with the help of a propeller current meter. The results of this feasibility study can be seen as a first step towards the creation of an efficient and standardized methodology for flow analysis in the vicinity of fish ladders.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75412915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Public transport – as the key element of an eco-friendly mobility system – is currently underrepresented in GIS-based accessibility analyses due to a lack of data. Efforts to make machinereadable timetable information available in the open GTFS format as OpenData offer new possibilities. The integration of these data into geographical information systems provides the basis for spatial analyses in the field of accessibility and thus the possibility to generate valid accessibility indicators for public transport. This paper discusses examples of first implementations of common indicators, such as travel time budget indicators and gravity based indicators, and shows potentials of enhancing these indicators by incorporating a “probability dimension”.
{"title":"GTFS in ÖV-Erreichbarkeitsanalysen / GTFS in Public Transport Accessibility Analysis","authors":"Michael Gidam, Robert Kalasek, Florian Pühringer","doi":"10.14627/537698031","DOIUrl":"https://doi.org/10.14627/537698031","url":null,"abstract":"Public transport – as the key element of an eco-friendly mobility system – is currently underrepresented in GIS-based accessibility analyses due to a lack of data. Efforts to make machinereadable timetable information available in the open GTFS format as OpenData offer new possibilities. The integration of these data into geographical information systems provides the basis for spatial analyses in the field of accessibility and thus the possibility to generate valid accessibility indicators for public transport. This paper discusses examples of first implementations of common indicators, such as travel time budget indicators and gravity based indicators, and shows potentials of enhancing these indicators by incorporating a “probability dimension”.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79351035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the project, Bicycle Observatory a multitude of different spatial data sets of bicycle traffic will be correlated and the results will be made available to the scientific community as open data, where possible from a licensing perspective. In order to support these requirements over the complete project cycle, the instrument of the data management plan has also been established in research projects in recent years. To support these tasks, an easy to maintain data management plan has been set up based on the collaboration platform Confluence.
{"title":"Erfahrungen bei der Umsetzung eines Datenmanagementplans für räumliche Daten des Radverkehrs / Experiences in the Implementation of a Data Management Plan for Spatial Data of Bicycle Traffic","authors":"S. Leitinger, Andreas Wagner, Wolfgang Kremser","doi":"10.14627/537698024","DOIUrl":"https://doi.org/10.14627/537698024","url":null,"abstract":"In the project, Bicycle Observatory a multitude of different spatial data sets of bicycle traffic will be correlated and the results will be made available to the scientific community as open data, where possible from a licensing perspective. In order to support these requirements over the complete project cycle, the instrument of the data management plan has also been established in research projects in recent years. To support these tasks, an easy to maintain data management plan has been set up based on the collaboration platform Confluence.","PeriodicalId":36308,"journal":{"name":"AGIT- Journal fur Angewandte Geoinformatik","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74597750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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