Predmet raziskave je digitalni model reliefa (DMR) kot podatkovni sloj, ki podrobno opisuje obliko zemeljskega površja. DMR je digitalni zapis nadmorskih višin, predstavljen z neprekinjeno ...ploskvijo. V Sloveniji imamo dolgoletno tradicijo pri izdelavi DMR-ja, od konca 60. let prejšnjega stoletja, ko smo začeli razvijati DMR 100. Trenutno je aktualen DMR Slovenije in okolice kot zbirka digitalnih podatkov višin DMV 12,5, 25 in 100 ter izohips in skeleta reliefa. Model je bil izdelan leta 2005 po lastni metodi integracije obstoječih podatkov. V povezavi s potrebnim vzdrževanjem modela (skupaj s pretvorbo v nov koordinatni sistem) ter z razvojem novih tehnologij, kot je lasersko skeniranje in metode kontrole kakovosti podatkov, predlagamo smernice nadaljnjega razvoja. Izboljšani DMR Slovenije naj bi poleg že vključenih slojev vseboval še podatke DMV-ja 12,5 brez antropogenih vplivov, iz podatkov laserskih skeniranj izdelana DMV 1 in DMP 1 (digitalni model ploskve) ter zbirki surovih podatkov laserskih skeniranj in podatkov podvodnega reliefa ter drugih virov. / The objective of this study is the digital terrain model (DTM) as a data set that describes the shape of the Earth’s surface in a detail. The DTM is a digital record of the height values that are resembled by continuous surface. In Slovenia there is a long tradition of DTM production that started in the end of 60s when we started developing DTM 100. The present DTM is a DTM of Slovenia and its surroundings that include a database of digital elevation models DEM 12.5, 25, and 100 together with contour lines and terrain skeleton. The model was produced in 2005 with our own method of data integration. The model needs maintenance so we suggest some guidelines for further development (including transformation to a new coordinate system) that should be supported by the development of new technologies, such as laser scanning and methods of a data quality control. Besides incorporated data, the enhanced DTM of Slovenia would also include DEM 12.5 data without anthropogenic influences; laser-scanning produced DEM 1 and DSM 1 (digital surface model); a raw data database from laser scanning missions; and an underwater relief database with other data sets.
In 2005, to the order of the Surveying and Mapping Authority of the Republic of Slovenia, the Scientific Research Centre of the Slovenian Academy of Sciences and Arts elaborated an integral system ...for data maintenance: the Digital Elevation Model with new, qualitative terrain data. The system is relatively simple and transparent. With integration of the existing data and on the basis of innovative methodology, for the territory of Slovenia and its surroundings a new digital elevation model was produced with a resolution of 12.5 m. Due to pooling of more than 25 data sets the model is a sort of collage, which is, from the metrical and geomorphological points of view, of better quality than the best source data available. A further challenge is to put the elaborated methodology and procedures of digital elevation model production into practice.
