Abstract. On the basis of requirement to solve operational safety important construction and energy objects in Czech Republic further on acquired knowledge experience ensuring measurement shifts objects, Geodetic, Topographic Cartographic Research Institute Republic, v.v.i. proceeded with development a sensor for measuring height its integration into an integrated system. As part project BIM - ...

New Zealand has a legal 3D cadastre, and has done since the inception of its cadastral survey and tenure systems around 150 years ago. However, the digital representation of the cadastre is 2D with 3D situations handled via static plan, section and elevation images and supporting textual information. Work is currently underway to develop a 3D digital cadastre that will enable the 3D spatial ext...

OBJECTIVE To describe a modification of the cranial closing wedge ostectomy (CCWO) technique and to compare its efficacy to the standard technique on cadaveric specimens. METHODS The standard and modified CCWO technique were applied to eight pairs of cadaveric tibiae. The following parameters were compared following the ostectomy: degrees of plateau levelling achieved (degrees), tibial long a...

In regions with a rough topography, e.g. the European Alps, the accuracy of geoid or quasigeoid models is often reduced. For the validation and accuracy assessment of gravimetric models, astronomical levelling is a well-suited independent method. In a test area, located in the German Alps, a new astrogeodetic data set was acquired using the Hannover Digital Zenith Camera System. Vertical deflec...

How to accurately determine the mechanical parameters of rockfill is one of the key issues of concrete-face rockfill dams. Parameter back-analysis using internal or external monitoring data has been proven to be an efficient way to solve this problem. However, traditional internal or external monitoring methods have limitations in efficiency and long-term monitoring. In this paper, the displace...

We evaluate the new regional quasigeoid model (OTG12) for New Zealand using the method which utilises the discretised integralequation approach for computing the near-zone contribution. The far-zone contribution is computed by modi ed spherical harmonics of the geopotential. Adopting the remove-compute-restore computation scheme, the nearand far-zone contributions are computed for the residual ...

Nacrtak The purpose of the study was to examine the ability of LiDAR (Light Detection and Ranging) to derive terrain slope over large areas and to use the derived slope data to model the effect of slope on the productivity of a self-levelling feller-buncher in order to predict its productivity for a wide range of slopes. The study was carried out for a self-levelling tracked feller-buncher in a...

Abstract. Long-range Doppler wind lidars are applied more and for high-resolution areal measurements in around farms. Proper alignment, or at least knowledge on how the systems aligned, is of great relevance here. The paper describes detail two methods that allow a very accurate alignment long-range scanning lidar without use extra equipment sensors. well-known so-called hard targeting allows p...