The geographical informatikon (TOP50_LT) update for the city of Sakiai and submission to the user

The updating and presentation of recently georeferenced cartographic data is very important, as it serves as a basis for planning, designing and analysing the processes of land cover change. (Gudritiene, 2016). The law of geodesy and cartography in the Republic of Lithuania determines the management of cartographic works, principles and peculiarities of the compilation of geographic information system data sets (Lietuvos..., 2001). Spatial data is a digital representation of the data describing the geographical location, form, interconnections and uniqueness of the analysed object. (Papisiene, 2014). The research object was the year 2013 TOP50_LT data collection of the Sakiai district. The purpose of this research was to perform the year 2013 Sakiai district TOP50_LT spatial database update while referring to the year 2016 ORT10LT map data interpretation. The following tasks for this research were to perform an overview of the existing Lithuanian territory spatial data, to perform the year 2013 Sakiai district TOP50_LT spatial database update while referring to 2016 ORT10LT map data interpretation and to perform the spatial data range analysis of the Sakiai district during the years 2013 - 2016. In terms of research methods, this paper analyses regulation documents as well as various scientific, specialised and foreign literature sources. The paper also analyses the cartographic history and Lithuanian (as well as foreign) spatial data and its possible uses and looks at the legislations governing this area. ArcMap 10.2.2 software and computer databases were used to aid the completion of this paper, while topographical and orthophoto maps were also analysed. While researching the geographical map data, scientific methods such as comparison, modelling, summation and graphical visualisation were used. In the process of updating the topographical map, various cartographic material was referred to as well as methodological advice and orthophotographsVytauto Didžiojo universitetasŽemės ūkio akademij