Vlado Cetl

Towards a real property cadastre in Croatia

Abstract The fall of the Iron Curtain and the change of social and economic order in the East European countries, as in Croatia, have caused great alterations, especially in the perception of real property ownership and real property transactions. To be able to support the growing real property market it is necessary to reform the land administration system, because of the social ownership concept that was in practice over 50 years on the former Yugoslavia territory. Having recognised this challenge, Croatia invests enormous efforts and significant financial resources in order to modernise the land registration system as quickly as possible, so as to guarantee security of ownership and real property transactions. In this paper, an overview of the inherited cadastral system and current activities towards a modern real property cadastre is given.

Marine Spatial Data Infrastructure Development Framework: Croatia Case Study

Spatial data infrastructure (SDI) related to marine spatial data is known as marine SDI (MSDI). In this paper, we determine data themes under the MSDI in the order of usefulness and efficiency. The purpose is to streamline and support the prioritisation of data to be further implemented in the MSDI. This is conceptualised using the logic of decision support systems and a multi-criteria analysis approach that integrates components such as data, stakeholders, and users through multi-criteria methods for priority ranking. This research proposes an MSDI development concept and is validated using the Croatian MSDI case.

Making more OGC services available on the web discoverable for the SDI community

The work presented in this paper describes preliminary results of the main activity performed in the research project Bolegweb, which is connected to activities done by the SmartOpenData project. The Bolegweb project aims at the development of a geospatial meta-search crawler to collect online accessible geospatial information (GI) resources and harvest geospatial metadata. Deployment of a graphical user and application programming interfaces providing access to collected resources will provide a gateway to GI resources for users and applications at all levels of the Web with a global coverage. More than 15 thousand OGC services collected within the last period, covering 17 months (October 2013 – April 2015) are collected and metadata for both services and resources are catalogued.

Development of NSDIs in Western Balkan Countries in accordance with INSPIRE

Abstract The INSPIRE Directive requires actions from EU member states and also has direct implications on the countries in the neighbourhood of the EU, regardless of whether they are candidate countries or not. Preconditions for EU membership, to which actually all the countries of Western Balkan (WB) countries aspire is their administrative capacity to incorporate the EU acquis, to fulfil the adopted standards and to execute the assumed obligations. INSPIRE Directive is just one but very important piece of legislation in environmental acquis and is a part of negotiation processes between the European Commission and candidate countries. This paper provides an analysis of the existing status and conditions of National Spatial Data Infrastructures (NSDIs) in WB countries. Results of analysis clearly show that in all countries there are ongoing initiatives on NSDI implementation in line with INSPIRE. The level of implementation between countries however differs but they are all on the right track. In the paper the main existing and future achievements are discussed together with a SWOT analysis. Paper also complements the INSPIRE State of Play Report from 2011, especially with the situation in the countries for which there is no such consistent information available. Finally, some conclusions and recommendations for further developments are given to foster and help WB countries in their efforts to develop NSDIs in accordance with INSPIRE.

Stakeholders Needs Requisite Analysis: Towards Croatian Marine Spatial Data Infrastructure Establishment

National Marine Spatial Data Infrastructure (MSDI) in the Republic of Croatia has not yet been implemented. This paper examines the requirements and needs of future MSDI stakeholders, using a multidisciplinary approach. The paper describes the testing procedures, how to use the interview method, survey and research results. Survey sample was made up of providers and users of marine spatial data in Croatia, considering also future MSDI stakeholders (government and private sector, research institutions and non-governmental organizations). The aim was to investigate the needs for the MSDI implementation, which in Croatia doesn’t exist at the moment. However, results of our research show that the need for this kind of infrastructure is very high and justified. Results and collected information arewill be the basis for creation of the MSDI geoportal prototype.

A FRAMEWORK FOR EVALUATION OF MARINE SPATIAL DATA GEOPORTALS USING CASE STUDIES

Abstract Need for a Marine Spatial Data Infrastructure (MSDI) as a component of a National Spatial Data Infrastructure (NSDI) is widely recognized. An MSDI is relevant not only for hydrographers and government planners, but also for many other sectors which takes interest in marine spatial data, whether they are data users, data providers, or data managers [9]. An MSDI encompasses marine and coastal geographic and business information. For efficient use of Marine Spatial Data, it is necessary to ensure its valid and accessible distribution. A geoportal is a specialized web portal for sharing spatial information at different levels over the Internet. This paper re-examines the implementation of an MSDI and what it means for data custodians and end users. Several geoportals are reviewed (German and Australian) to determine their web services functionality, capabilities and the scope to which they support the sharing and reuse of Marine Spatial Data to assist the development of the Croatian MSDI Geoportal. This framework provides a context for better understanding the information bases on spatial data standards and a tool for evaluation of MSDI dissemination - Geoportal.

Establishing Common Ground Through INSPIRE: The Legally-Driven European Spatial Data Infrastructure

Back in the 1990s, there were several barriers for accessing and using the spatial data and information necessary for environmental management and policy making in Europe. These included different data policies, encodings, formats and semantics, to name a few. Data was collected for, and applied to, domain specific use cases and comprehensive standards did not exist, all impacting on the re-usability of such public sector data. To release the potential of spatial data held by public authorities and improve evidence-based environmental policy making, action was needed at all levels (Local, Regional, National, European) to introduce more effective data and information management and to make data available for citizens’ interest. The INSPIRE Directive, the Infrastructure for Spatial Information in Europe, directly addresses this set of problems. The Directive came into force on 15 May 2007, with full implementation in every EU Member State required by 2021. It combines both, a legal and a technical framework for the EU Member States, to make relevant spatial data accessible and reused. Specifically, this has meant making data discoverable and interoperable through a common set of standards, data models and Internet services. The Directive’s data scope covers 34 themes of cross-sector relevance as a decentralised infrastructure where data remains at the place it can be best maintained. A great deal of experience has been gained by public administrations through its implementation. Due to its complexity and wide scope, this is taking place in a stepwise manner, with benefits already emerging as important deadlines approached. Efficient and effective coordination are following the participatory approach established in its design. It is timely to reflect on 10 years of progress of the “cultural change” which the European Spatial Data Infrastructure represents. We therefore, consider the lessons INSPIRE is offering for those interested in joined-up and federated approaches to geospatial data-sharing and semantic interoperability across borders and sectors. The approach itself is evolving through this experience.

A comparison of address geocoding techniques – case study of the city of Zagreb, Croatia

In the last years a lot of online geocoding services have become available online. Some of them are based on VGI as input data. Such services are very useful in the case of big amounts of objects that need to be geocoded. However, the quality of such services has still not been adequately explored. In this paper we tried to answer several questions regarding the quality of online geocoding services using the city of Zagreb in Croatia as a research area. The results of research showed that the currently available services need improvements to provide accurate sources for geocoding.

Interoperable Volunteered Geographic Information Empowering e-Governance Processes: Case Study for Land Use Dataset in the City of Zagreb

Spatial data resources have become very important phenomena in Europe within the last few decades. They are especially important in large cities due to the urbanisation trend. The expansion of urban areas due to the rise in the population and economic growth is increasing demand on natural resources, thereby causing land use changes. It is expected that by 2040, more than 60 % of the world’s population will live in cities. In order to manage sustainable development and support e-governance processes, the efficient integration of relevant spatial data is needed. Land use data deliver an asset for local governments to develop better strategy for urbanistic planning, in order to manage land in a sustainable way. This work presents the methodology used to collect VGI observations for land use area definition based on the LUCAS (Land Use and Cover Area frame Survey) fieldwork methodology, HILUCS (Hierarchical INSPIRE Land Use Classification System), and reference topographic dataset. The practical research work was performed in June 2014 during the GIS Summer School in the city of Zagreb, in a dual collaboration between the Faculty of Geodesy, University of Zagreb and Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra. The results try to offer and verify a suitable proposal for fieldwork methodology and updating a land use database in line with the INSPIRE directive applicable at the local spatial data infrastructure level.

Testing the data quality of existing 3D model of the city of Zagreb

Many countries in the world have created virtual 3D models of their major cities. Existing 3D model of the City of Zagreb, capital of Croatia, was created in the period 2007- 2008 based on aerophotogrammetry. It is a vector model consists of Digital Building Model (DBM) and a Digital Terrain Model (DTM). DTM is represented as a triangulated irregular network (TIN). The data were obtained from the photogrammetric mapping of roofs and DTM, defining and measuring the planes of roofs, facades and the ground that together make a 3D city model. The level of details corresponds to LOD 2 according to CityGML standard. 3D city models have become nowadays an increasingly important source of spatial information in different domains. An accurate and well organised 3D model of a city is the principal tool not only for modern urban planning, but also for disaster management, asset management, environmental monitoring, tourism, etc. With the growing interest in 3D modelling, the need for high quality data has arisen. This paper gives the analysis of the data quality of existing 3D model of the City of Zagreb in accordance with the ISO 19157:2013 Geographic information - Data quality standard. Data quality is being analysed using the defined data quality elements: completeness, logical consistency, positional accuracy, temporal quality, thematic accuracy and usability. Since the original 3D model was created in an old Croatian Coordinate Reference System (CRS), data were also transformed in to the new CRS and stored in CityGML format.