11 research outputs found

    The Concept, Realizations and Role of Geosciences in the Development of Smart Cities

    Get PDF
    Today, more than half of the world\u27s population lives in cities and therefore the implementation of smart cities is being imposed as a strategy to solve the problems of rapid urbanization. Smart cities are still just a concept and there is no clear definition of it, and this paper provides a framework for understanding this concept and its key components. Considering a series of different studies, the basic components and factors of smart cities are derived. The implementation of this concept faces many challenges, with information and communication technology (ICT) playing a key role. Such cities are collecting large amounts of data, so in addition to ICT, two emerging technologies, the Internet of Things and the Big Data Concept, are increasingly being mentioned as the basis for successful development. Spatial information is also being imposed as one of the key drivers of successful development and decision making within a smart city. With the advancement and innovation of geospatial technologies, sciences such as geodesy and geoinformatics are becoming key drivers of the development of new smart applications and one of the essential components in the smart cities concept. But, due to the increasing interdisciplinarity of other sciences, geodesy and geoinformatics need to obtain their place in the concept of smart cities, so understanding this concept is crucial for sustainability of these professions

    Improving the Availability of Space Research Spatial Data*

    Get PDF
    The rapid development of space technology and the increased interest in space exploration have resulted in the intensive observation of celestial bodies, mostly in the solar system, over the past decade with the prospect of an upward trend in the future. Large amounts of collected data on space bodies impose the need to develop the Spatial Data Infrastructure of Celestial Bodies at the general level to enable standardized organization and storage of these data, and their efficient use and exchange. To approach the development of such an infrastructure, it is necessary to investigate what data, as well as how and to what extent, are collected through space observation. It is also necessary to investigate how this data can be obtained. This paper provides an overview of planetary spatial data archives, data storage and retrieval methods, and their shortcomings in the context of easy search, download and interpretation of data, all with the aim of establishing Spatial Data Infrastructure of Celestial Bodies that would make space data more accessible to the public and non-planetary scientists

    Open Access on GNSS Permanent Networks Data in Case of Disaster

    Get PDF
    Earthquakes, as a natural phenomenon causing large physical and social destruction, are the subject of intensive research throughout the world. Spurred by the fact that in year 2020, two catastrophic earthquakes hit Croatia, in March with epicenter near Zagreb and December with epicenter near Petrinja, at the Faculty of Geodesy, University of Zagreb activities were initiated with the aim of strengthening the ability to react in these situations. Focus of those activities is on providing fast, adequate, and complete information on the disaster in the field of geodesy and geoinformatics. The research was focused on interpretation of kinematics of surface motion during the earthquake itself for what high rate permanent GNSS (Global Navigation Satellite System) network stations registrations are necessary. The Croatian earthquakes experience as well as the Mexico (June 2020) and Samosa earthquake (October 2020), pointed out, related to the use of high-rate registration GNSS data, that the primary problem in the use of this data is open access to the data itself. That is why this study has been launched - to gain a global picture of the availability of data from permanent GNSS networks around the world. The research included the collection and processing of information on open access policies for permanent GNSS networks data in the event of natural disasters with an emphasis on earthquakes. A global survey of institutions around the world responsible for managing GNSS permanent networks has been conducted. The survey contains three groups of questions that include general information on the type of permanent networks, models of access to network data and the readiness of countries to reach an international agreement on the opening data of the GNSS network in the event of a disaster. The results indicated that a high percentage of countries participating in the survey were ready to agree to open the data and introduce a common international portal through which scientists and researchers would be able to download GNSS permanent network data free of charge in the event of natural disasters

    Festival znanosti 2017, Promatrajmo Zemlju uz Copernicus, Zagreb, 26. travnja 2017.

    Get PDF
    The Science Festival, a manifestation that has been continuously organized in Croatia since 2003, is intended for pupils, students and other citizens with the aim of encouraging and improving the dialogue between the scientific com­munity and the public.This year's theme of the Festival was "Time" (time physical, psychological, historical, meteorological, astronomical...).More about participating in the Science Festival, as well as the other activities, events and news about the Co­per­nicus program in Croatia can be found on the website of the Copernicus Relay and Academy Office Croatia http://science. geof.unizg.hr/copernicus/.Festival znanosti, manifestacija koja se u Hrvatskoj neprekidno organizira od 2003. godine, namijenjena je učenicima, studentima i ostalim građanima s ciljem poticanja i poboljšanja dijaloga znanstvene zajednice i javnosti.Ovogodišnja tema Festivala bila je „Vrijeme“ (vrijeme fizikalno, psihološko, povijesno, meteorološko, astronomsko…).Više o sudjelovanju na Festivalu znanosti, ali i ostalim aktivnostima, događajima i novostima o programu Copernicus u Hrvatskoj može se pročitati na web stranici Copernicus Relay i Academy ureda Hrvatska (CROC) http://science.geof.unizg.hr/copernicus/

    Sudjelovanje na IV kongresu o katastru u BiH i posjet gradilištu pelješkog mosta

    Get PDF
    U radu je dan prikaz sudjelovanja na IV kongresu o katastru u BiH i posjete gradilištu pelješkog mosta

    Sudjelovanje na IV kongresu o katastru u BiH i posjet gradilištu pelješkog mosta

    Get PDF
    U radu je dan prikaz sudjelovanja na IV kongresu o katastru u BiH i posjete gradilištu pelješkog mosta

    Analysis and Improvement Metadata Model of Space Exploration Spatial Data

    Get PDF
    Podaci prikupljeni svemirskim misijama pohranjuju se i pružaju korisnicima na korištenje kroz arhive pojedinih svemirskih agencija te specijalizirane portale svemirskih misija. Korisnici često nailaze na brojne probleme prilikom pretraživanja i preuzimanja podataka od interesa, unatoč tome što je pristup podacima neograničen za sve skupine korisnika. Trenutačni načini pohrane ovog vrijednog skupa podataka usmjereni su na njihovo dugoročno arhiviranje te su u velikoj mjeri prilagođene za uži krug znanstvenika iz područja svemirskih istraživanja s neadekvatnim funkcionalnostima pristupa i pretraživanja koje ne zadovoljavaju potrebe šireg kruga korisnika. U trenutačnim načinima arhiviranja i pristupa podacima svemirskih istraživanja korisnici često nailaze na problem pronalaska podataka od interesa, raspršenost podataka te njihovo otežano tumačenje. Arhive za opisivanje i pohranu podataka koriste zastarjele standarde (PDS 4) i neadekvatne metapodatke koji čine temelj uspješne IPP inicijative. Kako bi se ti podaci učinili efikasno dostupnim potrebno je razviti standarde i mehanizme koji će to omogućiti, drugim riječima razviti infrastrukturu prostornih podataka nebeskih tijela (IPPNT). U ovom radu opisani su i analizirani metapodaci trenutačnih arhiva podataka svemirskih istraživanja koji su uspoređeni s međunarodnim standardima zemaljskih inicijativa te na temelju čega su dane smjernice poboljšanja metapodataka u svrhu uspješne provedbe IPPNT inicijative.Data collected by space missions are stored and made available to users through archives of individual space agencies and specialized portals for space missions. Users often encounter numerous challenges when searching for and downloading data of interest, even though access to the data is unlimited for all user groups. Current methods of storing this valuable dataset are primarily focused on long-term archiving, and they are largely tailored to scientists in the field of space research, with inadequate access and search functionalities that do not meet the needs of a broader user base. To make this data efficiently accessible, it is necessary to develop a Spatial Data Infrastructure of Celestial Bodies (SDICB). In the current methods of archiving and accessing space data, users often face problems in finding data of interest, data dispersion, and the difficulty of interpreting them. The archives for describing and storing data use outdated standards (PDS 4) and inadequate metadata, which form the foundation of a successful IPP initiative. This paper describes and analyses the metadata of current space data archives, which are compared to international standards of terrestrial initiatives, and based on this, guidelines for improving metadata are provided for the successful implementation of the SDICB initiative

    Science Festival 2017, Let's observe the Earth with Copernicus, Zagreb, 26 April, 2017

    No full text
    The Science Festival, a manifestation that has been continuously organized in Croatia since 2003, is intended for pupils, students and other citizens with the aim of encouraging and improving the dialogue between the scientific com­munity and the public. This year's theme of the Festival was "Time" (time physical, psychological, historical, meteorological, astronomical...). More about participating in the Science Festival, as well as the other activities, events and news about the Co­per­nicus program in Croatia can be found on the website of the Copernicus Relay and Academy Office Croatia http://science. geof.unizg.hr/copernicus/

    Assessment of GNSS Galileo Contribution to the Modernization of CROPOS’s

    Get PDF
    CROPOS, as the Croatian GNSS network, was modernized and upgraded to support the Galileo system in 2019. Two of CROPOS’s services—VPPS (Network RTK service) and GPPS (post-processing service)—were assessed for the contribution of the Galileo system to their performance. A station used for field testing was previously examined and surveyed to determine the local horizon and to carry out a detailed mission planning. The whole day of observation was divided into several sessions, each with a different visibility of Galileo satellites. A special observation sequence was designed: VPPS (GPS-GLO-GAL), VPPS (GAL-only), and GPPS (GPS-GLO-GAL-BDS). All observations were taken on the same station with the same GNSS receiver, Trimble R12. Each static observation session was post-processed in Trimble Business Center (TBC) in two different ways: considering all available systems (GGGB) and considering GAL-only observations. A daily static solution based on all systems (GGGB) was considered as the reference for the accuracy assessment of all obtained solutions. The results obtained with VPPS (GPS-GLO-GAL) and VPPS (GAL-only) were analyzed and assessed; the results obtained with GAL-only have shown a slightly higher scatter. It was concluded that the inclusion of the Galileo system in CROPOS has contributed to the availability and reliability of solutions but not to their accuracy. By complying with the observation rules and taking redundant measurements, the accuracy of GAL-only results can be improved
    corecore