Proceedings of the ICA最新文献

{"title":"Towards Automated Nautical Chart Compilation and Verification of Output Topology and Safety","authors":"Tamer Ali Ali Nada, C. Kastrisios, B. Calder, Christie Ence, Craig Greene, Amber Bethell","doi":"10.5194/ica-proc-5-14-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-14-2023","url":null,"abstract":"Abstract. The compilation of Electronic Navigational Charts (ENCs) requires significant amount of time, labor-intensive efforts, and cost. Despite the advancements in technology and the various research efforts, generalization tasks are still performed manually or semi-manually with expected human errors. The dramatic increase in the amount of data that is collected by modern acquisition systems, in addition to the increasing timeline expected by the end-users, are constantly driving Hydrographic Offices (HOs) toward the investigation and adoption of more advanced and effective ways for automating the generalization tasks to speed up the process, minimize the cost, and improve productivity. Full automation of the nautical chart compilation process has been unreachable due to the strict nautical cartographic constraints (and particularly those of safety and topology) that pose a challenge for most of the available generalization tools, while it remains questionable whether automation can replace human thought processes. In this paper, we discuss a research effort for an Automated Nautical-chart Generalization (ANG) model in the Esri environment. The ANG model builds upon the nautical chart generalization guidelines and practice and utilizes available tools in the Esri environment to perform the generalization of selected ENC features to the target scale. Safety constraints in the marine domain is of utmost importance, however, since most of the readily available tools do not respect safety, the main goal of this effort has been an output with no topological violations. In the current phase of the project, we evaluate safety of soundings and contour for user fixing and while the validation of bathymetry is a well-researched topic, there was the need for an automated process to identify the sections of the generalized contours that have been displaced toward the shallow water side Therefore, this work also presents a safety validation tool that detects the contours’ safety violations in the output. The tool is composed of three main stages that run individually after the ANG model is complete with the aim to highlight the safety violations for fixing by cartographers.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132000450","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}

{"title":"Analysis of Cartographic Symbols as Visual Support in Interactive VR Geovisualizations","authors":"Helge Olberding, M. Vetter","doi":"10.5194/ica-proc-5-15-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-15-2023","url":null,"abstract":"Abstract. Game engines and head-mounted displays (HMD) can create interactive virtual reality (VR) cartographies. Many VR geovisualizations try to depict places as close to reality as possible. The scaling is 1:1 for most VR geovisualizations. If VR geovisualizations are too close to reality or complex, users can navigate through them better, but the amount of detail makes it more challenging to target information. With the help of cartographic elements, a more targeted focus can again be acquired. The focus and style of VR cartography depend on the topic. The topics selected were \"Floods and heavy rainfall events\", \"Noise propagation analysis\", and \"Lighting simulation\". These are three topic examples in which 3D city models are used. CityGML models and fictitious 3D objects were used. Different rendering techniques and point signatures were implemented for each of the themes. All three topics were implemented in an application as a serious game. With the help of an interactive interface and motion controllers, users can change and navigate all three themes. Solution-oriented objects can be placed on all three topics as an additional interactive element. These options allow users to learn targeted information through various presentation options and implement solutions.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132259430","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}

{"title":"Mapping the city's trajectories to cool the city and better resist heat waves","authors":"A. Ruas, Jean-François Girres, Abdou Guene, Valentin Clemence","doi":"10.5194/ica-proc-5-19-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-19-2023","url":null,"abstract":"Abstract. During the months of July and August 2021 and 2022, numerous climatic disturbances such as heat domes in Canada, floods and landslides in Belgium, Germany, Turkey, China as well as giant fires in Russia and Greece have marked the news and people’s minds. Climate inertia and the complexity of changing the world’s energy model make it necessary to adapt territories to limit the impacts of the changes that are underway. However, if the speeches on the urgency to act to cool the cities have become omnipresent, the implementations of solutions seem limited, and some territories even seem to be going in the opposite direction by massively artificializing the edges of urban areas. The objective of the FreshWay research project is to identify and analyse planning and implementation on the ground to combat summer heat waves and to represent the adaptation trajectories of cities. The first information that is questioned is the evolution of urban vegetation insofar as plants provide shade and allow cooling through the process of evapotranspiration. The paper presents the required information and the data model, cases study, the process to integrate data, the choice of indicators and the construction of trajectories from different perspectives for the municipality of Castelnau-le-lez, Sarcelles and Pontault-Combault, and at different level of details.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131478995","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}

{"title":"A Holistic View on Volunteered Geographic Information","authors":"Nina Polous","doi":"10.5194/ica-proc-5-17-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-17-2023","url":null,"abstract":"Abstract. With the rise of web and online mapping technologies since the early 2000s, Volunteered Geographic Information (VGI) has emerged as a significant resource for generating and disseminating diverse geographic data. VGI can be characterized in multiple ways, depending on factors such as data nature, contribution purpose, collection methods, and utilization approaches. However, specific strategies may only be applicable to certain situations, emphasizing the need for a comprehensive framework to examine the diverse challenges and solutions associated with various VGI types. Although numerous conceptual frameworks exist for specific VGI applications, such as disaster or crisis management, a more inclusive framework addressing the overall VGI landscape remains lacking. This study proposes a versatile conceptual framework that captures the multifaceted nature of VGI. The framework presents parameters and criteria for evaluating similarities and differences across the VGI spectrum, ultimately identifying major VGI types and their practical implications. The framework offers a valuable tool for systematic investigation and comparison of both static and dynamic contexts, fostering a deeper understanding of the VGI and its applications.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117349304","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}

{"title":"Tailoring Tactile Maps Based on Blind Users’ Needs","authors":"Vincent van Altena, Daan Rijnberk, M. Kuijer, Jolijn Jansen, Ebelien Min, Aafke van Welbergen, Tamara Visser, Niels van der Vaart, Julian Nauta","doi":"10.5194/ica-proc-5-22-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-22-2023","url":null,"abstract":"Abstract. The Sustainable Development Goals aim to \"leave no one behind,\" including visually impaired individuals who should have equal access to information. However, the production of tactile maps for the visually impaired has been inhibited by factors such as a lack of data and technology, cartographical challenges, and high production costs. To address this issue, two research projects developed prototype tactile maps for visually impaired users and evaluated their usability through a focus group discussion and hands-on experience. In the first project, the maps were appreciated for their continuous style, thematic versatility, and proportional information density. Suggestions for improvement included the addition of a clear map title, an overview map, a mandatory legend, and distinguishable icons. Tactile maps were seen as supplementary to mobile navigation by providing a geographical overview, information about locations of interest, creating and correcting cognitive pictures of the living environment, and sharpening geographical and common knowledge. The second project focused on refining the results in multiple iterations, and for this purpose a multidisciplinary consortium was formed that, in collaboration with a test panel of visually impaired users, contributed to the aim of making tactile topography on-demand, fit-for-purpose and globally available.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129724071","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}

{"title":"Assessment of the quality of colour scales: a case study \"Landscape Atlas of Czech Republic\"","authors":"V. Voženílek, V. Lachová","doi":"10.5194/ica-proc-5-24-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-24-2023","url":null,"abstract":"Abstract. The atlas, as a typical product of thematic cartography, is characterized by cohesive approaches in the procedures of atlas compilation. One of the results of these cohesive approaches is the uniform setting of colour scales in choropleth maps. The paper aims to evaluate the quality of colour scales in choropleth maps in an atlas from the point of view of systematic visualization, using the example of the electronic version of the Landscape Atlas of the Czech Republic. A total of 56 sequential and 6 divergent colour scales were selected from the Atlas. Seven hypotheses related to colours were formulated and then tested. The paper assumes that the colour scales in the atlas are not uniformly constructed. The authors hypothesise the approach by which the creators of the atlas chose these colours. In the CIELAB colour model, the colour distances between the colours of the intervals were measured, calculated, statistically evaluated and graphically expressed. The colour scales were also evaluated against the background of the map sheets. The results revealed the nature of the approach of the authors of the Atlas when compiling colour scales of choropleth maps. The aim of the paper was also to define the criteria for evaluating the quality of colour scales and to formulate recommendations for the compilation of colour scales. These recommendations should help map makers to create high-quality atlas maps and users to get more accurate and faster information from maps.","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133189110","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}

{"title":"The rising role of drones in the training of cartographers at Eötvös Loránd University (ELTE)","authors":"Fanni Vörös, B. Kovács, L. Zentai","doi":"10.5194/ica-proc-5-23-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-23-2023","url":null,"abstract":"Abstract. The achievements of the technical boom of the recent past will inevitably appear in the world of cartography and geoinformatics. One of these relatively new and increasingly popular technologies is drones (UAVs). This article serves a dual purpose: first, it presents the courses offering practical training at ELTE Eötvös Loránd University, Budapest (Hungary) for several decades and lists the tools used in them; second, it shows how information about drone recording can be integrated into which courses. The article also discusses how difficult it is to implement this in university education in Hungary under the current legal conditions, and what obstacles teachers encounter.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124784937","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}

{"title":"Building the case for a bottom-up approach to SDI\u0000stakeholder collaboration – experiences from South Africa","authors":"L. Siebritz, S. Coetzee","doi":"10.5194/ica-proc-5-20-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-20-2023","url":null,"abstract":"Abstract. Inclusive governance remains a challenge for the South African Spatial Data Infrastructure (SASDI). This is evidenced through the limited participation of sub-national government in SASDI and the challenges they experience with access to fundamental geospatial data. The purpose of this paper is to make recommendations for enhancing the role of sub-national government and other users in SASDI. Semi-structured interviews were conducted with representatives from municipalities and the municipal land use application process was used as a case study. The interviews confirmed that municipalities are striving to operate efficiently, but that limited access to fundamental geospatial data constrains them. Based on the results, it is recommended that access to geospatial data be improved through an integrated approach to stakeholder collaboration, coordinated by the SASDI. Such collaboration would proactively pursue inclusive governance and could significantly improve access to fundamental geospatial datasets.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134510411","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}

{"title":"Primary Health Care Accessibility in Zomba, Malawi: A Spatial Modelling Approach","authors":"Y. Phiri, K. Munthali","doi":"10.5194/ica-proc-5-16-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-16-2023","url":null,"abstract":"Abstract. Access to primary health care (PHC), as the first point of care, is an essential factor in influencing the health status of a society. In Malawi, an individual is considered to have access to health care if they are within an 8 km radius to a health facility. Based on this, the Health Sector Strategic Plan (HSSP) II, 2017–2022 puts access to PHC in Malawi at 90 %. However, a Demographic Health Survey (DHS) reports that 56 % of women find distance as a major barrier. As such the aim of the study was to model spatial access to health of households in the district. The study used the 2 Step Floating Catchment Area (2FCSA) with Gaussian decay function method to model health care access and the greedy algorithm to find optimal locations for new facilities. The study found that 62% households have the potential of walking 60 minutes to the facility, a figure 28 % lower than the one reported by HSSP. With 2SFCA scores ranging from 0 to 0.19, the results show that 98 % and 57 % of the households scored between 0.031 to 0.046 for urban and rural areas respectively. These scores imply that urban households have better spatial accessibility than rural households. The results provide a spatially objective PHC accessibility data to inform policy direction.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133871910","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}

{"title":"Jupyter Technology as a Cartographer's Work Environment: A Case Study","authors":"Kamil Choromański, D. Gotlib, J. Łobodecki","doi":"10.5194/ica-proc-5-4-2023","DOIUrl":"https://doi.org/10.5194/ica-proc-5-4-2023","url":null,"abstract":"Abstract. The article describes research experiments carried out to test the feasibility of using Jupyter technology as a tool to assist cartographers. The case study includes several examples typical of the stage of data preparation and analysis prior to the execution of the cartographic presentation itself. At the same time, the possibility of performing simple cartographic presentations useful at the stage of analysis performed by various researchers is presented in this environment. The purpose of the cases discussed is not to perform a complex and typical cartographic task but to highlight Jupyter Notebook's usefulness in cartographers' work.The authors introduce the essential features of this technology, briefly describe the experiments performed using geospatial cyberinfrastructure, and demonstrate the overall potential and limitations of the Jupyter environment. It’s most important advantages include a possibility of prototyping as part of the map development process, automation of geodata preparation processes, and facilitation of teamwork and sharing work results. The experiments confirmed the usefulness of the technology, although they also demonstrated some particular requirements and barriers in its use. Subsequent research teams can use the Jupyter notebooks that were created as part of the experiment.\u0000","PeriodicalId":233935,"journal":{"name":"Proceedings of the ICA","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126205348","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}