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• Accuracy assessment of different soil databases concerning WRB reference soil groups

  1-12

  Dániel Balla

  Orsolya Varga

  Marianna Zichar

  Views:

  232

  As a result of international cooperation, the conditions of data access and data usage have been significantly improved during the last two decades. Also, the establishment of web-based geoinformatic infrastructure allowed researchers to share their results with the scientific community more efficiently on the international level. The aim of this study is to investigate the accuracy of databases with different spatial resolutions, using the reference profiles of LUCAS topsoil database. In our study, we investigated the accuracy of World Reference Base for Soil Resources (WRB) Reference Soil Groups (RSG) groups stored in freely accessible soil databases (European Soil Database (ESDB), International Soil Reference and Information Centre (ISRIC)) in Hungary. The study concluded that the continental scale database tends to be more accurate. We used the Kappa Index of Agreement (KIA) statistical index to evaluate accuracy. The European and the international databases showed a value of 0.9643 and 0.3968, respectively. Considering the results, we can conclude that the spatial resolution has a relevant impact on the accuracy of databases, however, the study should be extended to the national level and the indices should be assessed together.

• Guidelines for cost-effective geovisualization in digital forensics

  117-122

  Marianna Zichar

  Views:

  221

  Every field of our life is influenced by the appearance of new technologies. This means that new challenges keep being met and finding solutions, developing methods to deal with them belong to our tasks. Law enforcement has to be always ready to adopt the achievements of any disciplines. Experts and professionals in any field should be aware of applicability of the knowledge they have that is why it is important to highlight as much fields where our knowledge can be used as we can. Digital forensics differs from traditional forensics in many aspects that is why a general GIS professional can be involved into an investigation easily. This paper aims to provide methods to geovisualize information containing or referring to location data. Cost effective solutions are preferred throughout the paper.