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Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 25
Pitoňák, Martin , Šprlák, Michal , Ophaug, Vegard , Omang, Ove , Novák, Pavel
Validation of space-wise GOCE gravitational gradient grids using the spectral combination method and GNSS/levelling data

The launch of gravity-dedicated satellite missions at the beginning of the new millennium led to an accuracy improvement of global Earth gravity field models (GGMs). One of these missions was the Gravity field and steady-state Ocean Circulation Explorer (GOCE) launched in 2009. As ...

Rucký, Jan , Janečka, Karel
3D aspekty územního plánování – úvodní zamyšlení

The article presents an examination of the possibilities of using the third spatial dimension in the area of spatial planning in the Czech Republic. This article deals with the spatial planning system, its legislative framework with regard to subsequent use for modeling in the ...

Baradaranshahidin, Milad , Shabani, Shahin , Khalilzadeh, Mohammadreza , Tahmasbi Ashtiani, Saman , Tajaddini, Siavash , Azimipour, Mohammad
Modeling of BRT System Travel Time Prediction Using AVL Data and ANN Approach

Improving the quality of public transportation systems and encouraging passengers to use them are effective solutions for reducing transportation problems in metropolitan. Prediction of travel time and providing information to passengers are significant factors in this process. In this research n...

Beran, Daniel , Jedlička, Karel , Kumar, Kavisha , Popelka, Stanislav , Stoter, Jantien
The Third Dimension in Noise Visualization - a Design of New Methods for Continuous Phenomenon Visualization

3D cartographic visualization of a continuous time-dependent phenomenon is not an easy task. The focus of this research is motivated by the struggle to visualize such a phenomenon. Based on the current state of the art, we implemented new visualization methods to visualize continuo...

Janečka, Karel
Identifikační číslo stavby v kontextu digitalizace stavebního řízení

In connection with the digitization of the building permit procedure, an amendment to the Building Act 47/2020 has introduced an information system for building identification numbers. As a unique identifier, these numbers will make it possible to identify unequivocally a building or&#x...

Java, Oskars , Sigajevs, Aleksandrs , Binde, Juris , Kepka, Michal
NB-IoT Sensor Network for Obtaining the Input Data for Hydrological Simulation Model

The article describes the choice of appropriate network technology that provides sufficient coverage to allow the sensor network to be placed even in the remote and difficult to reach locations and the data to reach the cloud server. Further it describes the components of the&...

Šprlák, Michal , Han, Shin-Chan
On the use of spherical harmonic series inside the minimum Brillouin sphere: theoretical review and evaluation by GRAIL and LOLA satellite data

Spherical harmonic expansions are the most popular parametrisation of the gravitational potential and its higher-order spatial derivatives in global geodetic, geophysical, and planetary science applications. The convergence domain of external spherical harmonic expansions is the space above the minimum...

Kalogianni, Eftychia , Janečka, Karel , Kalantari, Mohsen , Dimopoulou, Efi , Bydłosz, Jarosław , Radulović, Aleksandra , Vučić, Nikola , Sladić, Dubravka , Govedarica, Miro , Lemmen, Christiaan , Van Oosterom, Peter
Methodology for the development of LADM country profiles

The growing recognition and influence of the ISO 19152:2012 Land Administration Domain Model (LADM), is revealed by the multiple country profiles that have been developed based on the standard in various jurisdictions across the world. The ongoing revision of the LADM Edition I, in...

Tangdamrongsub, Nattachet , Šprlák, Michal
The Assessment of Hydrologic- and Flood-Induced Land Deformation in Data-Sparse Regions Using GRACE/GRACE-FO Data Assimilation

The vertical motion of the Earth’s surface is dominated by the hydrologic cycle on a seasonal scale. Accurate land deformation measurements can provide constructive insight into the regional geophysical process. Although the Global Positioning System (GPS) delivers relatively accurate measurements,&#x...

Šprlák, Michal , Han, Shin-Chan , Featherstone, Will
Crustal density and global gravitational field estimation of the moon from GRAIL and LOLA satellite data

We employ Newton's integral in the spectral domain to solve two geodetic/geophysical tasks for the Moon. Firstly, we determine 3D bulk density distribution within the lunar crust (inverse problem). For this purpose, we develop a linear mathematical model that parameterises the later...

Schuh, Harald , Rizos, Chris , Šprlák, Michal , Drewes, Hermann , Heinkelmann, Robert
The XXVII IUGG General Assembly, Montreal, Canada, 2019 IAG Presidential Address

This contribution contains: IAG Presidential Address, Levallois Medal Laudation for Christoph Reigber, Guy Bomford Prize Lecture, IAG Young Authors Award 2015, IAG Young Authors Award 2016, IAG Young Authors Award 2017, IAG Young Authors Award 2018, Report of the IAG Secretary General, ...

Jedlička, Karel , Valeš, Jiří , Hájek, Pavel , Kepka, Michal , Pitoňák, Martin
Calculation of Agro-Climatic Factors from Global Climatic Data

This manuscript aims to create large-scale calculations of agro-climatic factors from global climatic data with high granularity-climatic ERA5-Land dataset from the Copernicus Climate Change Service in particular. First, we analyze existing approaches used for agro-climatic factor calculation and formulate...

Karabin, Marcin , Kitsakis, Dimitrios , Koeva, Mila , Navratil, Gerhard , Paasch, Jesper , Paulsson, Jenny , Vučić, Nikola , Janečka, Karel , Lisec, Anka
Layer approach to ownership in 3D cadastre in the case of underground tunnels

The paper focuses on approaches to the registration of real property rights in the case of underground or subway tunnels in different EU countries: Austria, Bulgaria, Czech Republic, Croatia, Greece, Poland, Slovenia, and Sweden. The authors conducted analysis on the registration of rig...

Kubíčková, Hana , Jedlička, Karel , Fiala, Radek , Beran, Daniel
Indoor Positioning Using PnP Problem on Mobile Phone Images

As people grow accustomed to effortless outdoor navigation, there is a rising demand for similar possibilities indoors as well. Unfortunately, indoor localization, being one of the requirements for navigation, continues to be a problem without a clear solution. In this article, we are&#...

Yin, Wenjie , Li, Tongqing , Zheng, Wei , Hu, Litang , Han, Shin-Chan , Tangdamrongsub, Natthachet , Šprlák, Michal , Huang, Zhiyong
Improving regional groundwater storage estimates from GRACE and global hydrological models over Tasmania, Australia

Accuracy of groundwater storage (GWS) estimates from the Gravity Recovery and Climate Experiment (GRACE) mission usually has certain relations with hydrological models. This study develops a statistical selection approach to optimally estimate GWS from GRACE using two hydrological models: the Glo...

Janečka, Karel
Transformation of 3D geospatial data into CityGML - a case of Prague

The 3D geoinformation is becoming important for cities and their policies. The cities are therefore exploring the possibilities of 3D virtual city models for more ecient decision making. To maximize the economic benefit of such data, the cities can provide their 3D geospatial data&...

Janečka, Karel
Standardization supporting future smart cities- A case of BIM/GIS and 3D cadastre

The aim of the paper is to give an overview of selected ongoing ISO standardization activities in the domain of geographic information dealing with BIM/GIS and 3D cadastre. The presented international standards have also a close relation to the activities (e.g. 3D spatial plan...

Kolovský, František , Ježek, Jan , Kolingerová, Ivana
The ε-Approximation of the Time-Dependent Shortest Path Problem Solution for All Departure Times

In this paper, the shortest paths search for all departure times (profile search) are discussed. This problem is called a time-dependent shortest path problem (TDSP) and is suitable for time-dependent travel-time analysis. Particularly, this paper deals with the ε -approximation of profile&#...

Pitoňák, Martin , Novák, Pavel , Eshagh, Mehdi , Tenzer, Robert , Šprlák, Michal
Downward continuation of gravitational field quantities to an irregular surface by spectral weighting

In geophysical and geodetic studies, gravity inversion is typically performed such that observed gravity values are first continued downward onto a regular (planar, spherical or spheroidal) surface by solving an inverse integral transform, which originates from a classical solution to the fi...

Rathnaya, Samurdhika , Tenzer, Robert , Pitoňák, Martin , Novák, Pavel
Effect of the lateral topographic density distribution on interpretational properties of Bouguer gravity maps

Until recently, the information about the topographic density distribution has been limited to only certain regions and some countries, while missing in the global context. The UNB_TopoDens is the first model that provides the information about a lateral topographic density globally. The...

Záznamy kolekce (řazeno podle Datum zaslání v sestupně pořadí): 1 až 20 z 25