Nadgradnja modela reliefa Slovenije z visokokakovostnimi podatki / High-Quality Data For Enhancement Of The Terrain Model Of Slovenia
Titel:
Nadgradnja modela reliefa Slovenije z visokokakovostnimi podatki / High-Quality Data For Enhancement Of The Terrain Model Of Slovenia
Auteur:
Tomaž Podobnikar
Verschenen in:
Geodetski vestnik
Paginering:
Jaargang 52 (2008) nr. 4 pagina's 834-853
Jaar:
2008
Inhoud:
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.
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