Geodetski list, Vol. 46 (69) No. 3, 1992.
Izvorni znanstveni članak
Initial Digital Density Model of the Surface Earth's Core Masses in the Test Area "Slovenia and Surrounding Part of Croatia" for the Regional Uses in Physical Geodesy
Krešimir Čolić
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Boško Pribičević
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Marijan Ratkajec
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Robert Stopar
; Ljubljana, Slovenija
Franjo Šumanovac
; Rudarsko-geološko-naftni fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Josipa Velić
; Rudarsko-geološko-naftni fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
Within the scientific project "Gravity field in geodesy, geophysics and geodynamics" a two-dimensional digital density model of surface masses in the test area "Slovenia and Surrounding Part of Croatia" has been established. This research on the density is of regional character and represents the first phase in an interdisciplinary cooperation, being so far assigned to the determination of the characteristic quantities of the earth's gravity field in the contemplated 2° × 3° test area. Firstly, the density values of separate petrographical units were determined with an accuracy between 50 and 100 kg·m^–3, using predominantly a weighing method of mass samples, taken on the chosen locations, but partly also the quicksilver method and others. After that, the existing "density zones" were fixed with the additional help of accessible geodetic maps, adopting 12 "density classes" plus the Adriatic sea area with a density of 1000 kg·m^–3. Finally, a digital density model with the grid raster of 2.5' × 2.5' for the "inner sector" (covering test area) and a rougher model with the grid raster of 3' × 5' and 5' × 5' respectively, for the "outer sector" (43° ≤ B ≤ 48.5° and 11° ≤ L ≤ 19°) were created. For the test area alone a higher density resolution digital model in the 2.5' × 2.5' grid raster was established too.
Ključne riječi
Hrčak ID:
292626
URI
Datum izdavanja:
30.9.1992.
Posjeta: 228 *