Impact of Height Datum Parameters on Height Reference System Realizations: Case Study in Croatia
Publication: Journal of Surveying Engineering
Volume 146, Issue 2
Abstract
The Croatian Height Reference System for the epoch 1971.5 (HVRS71) is the official height reference system of the Republic of Croatia, newly established after Croatia’s independence. By using the network of the Second High Accuracy Leveling Network (IINVT) inherited from the former Yugoslavia after Croatia’s independence, which is the reference frame of HVRS71, several alternative realizations of the height reference system were performed. The alternatives are based on different realizations of height datums compared to the official Croatian Height Datum for the epoch 1971.5 (HVD71). Comparative analysis of the alternative height reference systems has been performed by comparing the absolute height accuracy criteria of the IINVT node benchmarks and the distribution of their height accuracy, i.e., by comparing the level of realized height positioning quality that the systems offer to the end users. The results show to what extent the concept of height reference system realization has an impact on the absolute height accuracy within the system using HVRS71 as a benchmark for comparison.
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Data Availability Statement
Some or all data, models, or code used during the study were provided by a third party (original measurement data of the IINVT network and the height datum parameter data were provided by the State Geodetic Administration of the Republic of Croatia). Direct requests for these materials may be made to the provider as indicated in the Acknowledgments.
Acknowledgments
The authors would like to thank the State Geodetic Administration of the Republic of Croatia for making the original survey data available, without which this research and paper could not have been achieved.
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Journal of Surveying Engineering
Volume 146 • Issue 2 • May 2020
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©2020 American Society of Civil Engineers.
History
Received: Apr 24, 2019
Accepted: Sep 19, 2019
Published online: Jan 17, 2020
Published in print: May 1, 2020
Discussion open until: Jun 17, 2020
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