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Height Accuracy Analysis of the Official Vector Digital Terrain Model of the Republic of Croatia Obtained by Photogrammetric Restitution

Karlo Šimek orcid id orcid.org/0000-0003-3866-3363 ; Šimek d.o.o., Pula, Hrvatska
Damir Medak ; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivan Medved ; Rudarsko-geološko-naftni fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska


Puni tekst: hrvatski pdf 3.860 Kb

str. 217-230

preuzimanja: 723

citiraj


Sažetak

The usage of economically viable and faster measurement techniques for collecting spatial data of larger areas is rapidly increasing. The goal of this article is to examine the height accuracy of the official Digital Terrain Model (DTM) of Republic of Croatia, obtained from photogrammetric restitution, as an example of the mentioned spatial data type. Its origin is precisely the reason why it is the most accurate official DTM of Republic of Croatia, covering urban areas in the whole country. Spatial analysis was completed in areas with different topographic characteristics. Height accuracy testing of the DTM has been performed in regards to the terrain slope, level of city development and vegetation. Its accuracy has respectively been examined by comparison with the official cadastral geodetic control points, terrestrial measurements and Digital Elevation Model (DEM), derived from Shuttle Radar Topography Mission (SRTM) data. Preparation and processing of spatial data was carried out using AutoCAD Civil 3D, Global Mapper and QGIS professional software packages, while the accuracy analysis and visualization was processed by ArcGIS software suite. This study is beneficial for feasibility studies for the construction of rainwater drainage systems and for other preparatory actions in the design of geospatial projects on larger area interventions.

Ključne riječi

analysis; height accuracy; DTM; photogrammetry; slope; GNSS

Hrčak ID:

209075

URI

https://hrcak.srce.hr/209075

Datum izdavanja:

30.9.2018.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.236 *