20.500.12556/RUL-132841 ETRS89/D96-17 - rezultat GNSS-izmere EUREF Slovenija 2016 ETRS89/D96-17 - a result of the EUREF Slovenia 2016 GNSS campaign Horizontalna sestavina državnega prostorskega referenčnega sistema Slovenije temelji na EUREF GPS-izmerah pasivne GNSS-mreže EUREF-točk v letih 1994-1996. Obe državni aktivni GNSS-mreži SIGNAL in kombinirana geodetska mreža 0. reda sta bili vzpostavljeni naknadno, kar povzroča neskladnost koordinat GNSS-točk. Poleg tega naj bi po dobrih dveh desetletjih od vzpostavitve državnega horizontalnega referenčnega koordinatnega sistema (D96) temu potekel rok trajanja tudi zaradi precej dejavne tektonike. V letu 2016 je bila izvedena nova EUREF GNSSizmera z namenom preveriti in izboljšati kakovost koordinat GNSS-točk v Sloveniji. Prinesla je novo realizacijo ETRS89 v Sloveniji geodetski datum D17. Slednji zaradi prevelikih koordinatnih razlik glede na D96 ni bil uveljavljen neposredno. Izbran je bil pragmatičen pristop, ki kot se le dá malo spremeni obstoječe koordinate, vendar pa upošteva tudi dejanske spremembe v fizičnem prostoru in odpravlja nastala trenja v GNSS-mrežah. Nove koordinate temeljijo tako na stari (D96) kot tudi novi (D17) realizaciji ETRS89 in so dobile oznako D96-17. Glede na zahtevano natančnost izmere v zemljiškem katastru ostanejo vse doslej določene koordinate zemljiškokatastrskih točk nespremenjene. Glavna korist posodobitve koordinat v ključnih GNSS-mrežah v državi je višja natančnost in točnost določanja položajev v prihodnje. The horizontal component of the national spatial reference system of Slovenia is based on EUREF GPS campaigns at the passive GNSS-network of EUREF sites in the years 1994-1996. Both active GNSS networks (the SIGNAL and Zero-Order Combined Geodetic Networks) were established afterwards, which caused inconsistencies in coordinates based on GNSS surveys. Furthermore, the lifetime of the national coordinate reference system (D96) might be expired after two decades from its realization due to relatively active tectonics. A new GNSS campaign was carried out in 2016 in order to validate and improve the quality of coordinates of GNSS sites in Slovenia. The result is a new realization of ETRS89 referred to as D17. However, it was not implemented directly due to substantial coordinate differences when compared to the previous realization. A pragmatic approach was chosen that attempted to keep changes of coordinates as small as possible. It eliminated inconsistencies but also distortions in GNSS networks caused by the changes in physical space. The new coordinates are based on both the old (D96) and new (D17) realizations of ETRS89 and are denoted by D96-17. According to the requirements for the quality of coordinates in the land cadastre surveys, all the previously determined coordinates of cadastral points remain unchanged. The main benefit of the update of coordinates in the core GNSS networks in the country is more precise and accurate positioning in the future. true false false Slovenski jezik Angleški jezik Neznano 2021-11-04 13:34:56 2021-11-04 13:35:01 2022-09-12 04:13:59 0000-00-00 00:00:00 2020 0 0 Str. 43-67 št. 1 Letn. 64 mar. 2020 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 521.181(497.4) 0351-0271 10.15292/geodetski-vestnik.2020.01.43-67 14254339 RAZ_Berk_Sandi_2020.pdf RAZ_Berk_Sandi_2020.pdf 1 A149E4C693EF529CA26F8287DD123353 bd4ea47a461b4009ca72fb6ea9830b35b81e979487f915fdf18c16affd48066a 95ce3841-3d6b-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=150565 Fakulteta za gradbeništvo in geodezijo 0 0 0