Tea Duplančić Leder

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.

Multiscale ENC Data Management on an Archipelagic Sea Area - Example of the East Adriatic Coast

This paper briefly outlines the production of electronic nautical charts (ENC) as a digital nautical chart, produced by the Croatian National Hydrographic Office (HO) to International Hydrographic Organization (IHO) specifications S-57 Edition 3.1. The production of ENCs is based on the theory of multiscale data management (usage bands). Multiple representations of ENC data are controlled by scale minimum (SCAMIN) attributes. A solution to the problem of multiscale data management as a part of ENC data production for archipelagic sea areas, using the East Adriatic Coast as an example is presented. This solution is based on a long-standing experience in the production of paper charts and recent ENC production for the eastern coast of the Adriatic Sea, which is believed to be the second largest archipelagic area in the Mediterranean. Finally, a new usage band scale range, compilation scale for all navigational purposes and method of using SCAMIN attributes for archipelagic seas are proposed.