Evaluation of hazard-mitigating hybrid infrastructure under climate change scenarios
| Project title: |
Development of the national height transformation model between SVS2000 / Trieste and SVS2010 / Koper |
| Project team: |
Božo Koler (07531), coordinator, Tomaž Ambrožič (12247), Dušan Kogoj (05674), Klemen Kregar (33435), Aleš Marjetič (26122) Simona Savšek (13531), Jernej Tekavec (38467), Tilen Urbančič (33455), Gašper Štebe (36874), Janez Goršič (17445) |
| Duration: |
18 Months 1. 10. 2022 – 31. 3. 2024 |
| Project code: |
V2-2294 |
| Lead partner: | Faculty of Civil and Geodetic Engineering, University of Ljubljana |
| Project leader | Assist. Prof. Božo Koler |
| Source of finance: |
Javna Agencija za raziskovalno dejavnost RS
Surveying and Mapping Authority of the Republic of Slovenia
|
| Key words: |
height datum, Slovenian height system 2000/Trst, Slovenian height system 2010/Koper, height differences, height quality analysis, height transformation, transformation surface, interpolatio |
Description:
At the end of 2018, the Government of the Republic of Slovenia adopted the Decree determining the height parameters of the vertical component of the national spatial coordinate system, which introduced a new state height system called the Slovenian height system 2010 and labeled SVS2010/Koper. The difference between the elevation datum of Koper and Trieste ranges from 1.4 cm to 30.8 cm. Since the difference in height between SVS2000/Trieste and SVS2010/Koper is not constant, it is not possible to simply recalculate the database or change from the old to the new height system used by the Surveying and Mapping Authority of the Republic of Slovenia and many other administrations and state agencies. There are similar problems with adding new data to old site displays, which are needed for spatial planning, planning of new facilities in space and last but not least for the registration of real estate built before 2019. The main goal of the project is to introduce a transformation based on height transformation model, which will be developed for the entire territory of Slovenia, and the corresponding program will enable various database administrators and database users to easily and uniformly transform heights from the old to the new height system or vice versa.
Main goals:
The main goals of the project is to develop a height transformation model and a corresponding software package that allows easy transformation of heights from the old to the new height system and evaluation of the accuracy of the height transformation based on the height transformation model and the transformation model accuracy evaluation model. To build a height transformation model, we will determine the height differences between the old and new height systems. Various test height transformation models will be investigated and evaluated using different interpolation methods and cell grid sizes. The quality of a single elevation transformation model is evaluated based on the elevation difference of benchmarks that are not used as input data for modeling the height transformation model. Based on the analysis of the quality of the height transformation model, special attention is paid to the elaboration of recommendations on which data are useful and necessary to transform into the databases of the Surveying and Mapping Authority of the Republic of Slovenia, given the achieved height accuracy.
Project work packages:
Work Package 1 (DS1): Determine the framework and requirements for building a height transformation model [M01-M03],
Work Package 2 (DS2): Determine the height differences between the old and new height systems and analyze the quality of the height differences [M01-M06],
Work Package 3 (DS3): Selection of benchmarks, construction and quality analysis of the height transformation model [M06-M14],
Work Package 4 (DS4): Height transformation software package and user manual [M11-M18],
Work Package 5 (DS5): Coordination and dissemination [M01-M18].