{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-QJQ2AAS1/7ecd0411-ba69-46cc-b55b-6a37990a3871/PDF","dcterms:extent":"1708 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-QJQ2AAS1/0e24e78b-4346-49f9-99e7-a1fb1ab3fa99/TEXT","dcterms:extent":"42 KB"}],"edm:TimeSpan":{"@rdf:about":"1973-2025","edm:begin":{"@xml:lang":"en","#text":"1973"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-QJQ2AAS1","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-KHWREVIC"},{"@xml:lang":"sl","#text":"Geodetski vestnik"}],"dcterms:issued":"2024","dc:creator":["Bukač, Blaženka","Razumović, Ivan","Rožić, Nevio"],"dc:format":[{"@xml:lang":"sl","#text":"številka:4"},{"@xml:lang":"sl","#text":"letnik:68"},{"@xml:lang":"sl","#text":"str. 419-431"}],"dc:identifier":["ISSN:0351-0271","DOI:10.15292/geodetski-vestnik.2024.04.419-431","COBISSID:222803715","URN:URN:NBN:SI:doc-QJQ2AAS1"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Zveza geodetov Slovenije"},"dc:subject":[{"@xml:lang":"en","#text":"absolute height"},{"@xml:lang":"sl","#text":"Bosna in Hercegovina"},{"@xml:lang":"en","#text":"correlation"},{"@xml:lang":"sl","#text":"geodezija"},{"@xml:lang":"en","#text":"height accuracy"},{"@xml:lang":"en","#text":"height system"},{"@xml:lang":"sl","#text":"Hrvaška"},{"@xml:lang":"en","#text":"least squares method"},{"@xml:lang":"sl","#text":"nadmorska višina"},{"@xml:lang":"sl","#text":"nivelmanske mreže"},{"@xml:lang":"en","#text":"parametric adjustment"},{"@xml:lang":"sl","#text":"Slovenija"}],"dcterms:temporal":{"@rdf:resource":"1973-2025"},"dc:title":{"@xml:lang":"sl","#text":"The impact of the adjustment concept on the benchmarks' height accuracy| Natančnost višin reperjev glede na način izravnave|"},"dc:description":[{"@xml:lang":"sl","#text":"National height reference coordinate systems are based on levelling networks classified into orders, according to their accuracy. Traditionally, height systems are realized by applying the parametric adjustment and the least squares method. Any kind of correlation between the observations as well as the correlation of fixed heights is often neglected for pragmatical reasons. Also, given heights are usually assumed error-free when in reality they possess a certain level of accuracy. This paper presents an alternative realisation of the height reference system HVRS71 for the Republic of Croatia. Data scope is limited to the 1st and the 2nd order levelling networks. Alternative realisation is carried out by applying different adjustment concept where the correlations between the observations caused by the introduction of correlated given heights are considered. Also, this methodology enables the transfer of the accuracy of benchmarks’ absolute heights from the higher-order levelling network to the accuracy of the benchmarks’ absolute heights of lower-order levelling networks. Thus, an objective, logical and real distribution of the benchmarks’ height accuracy along the scope of the height reference system is achieved. The results specify to what extent the change in the concept of the levelling network adjustment affects the quality of the height reference system"},{"@xml:lang":"sl","#text":"Nacionalni višinski referenčni sistemi temeljijo na nivelmanskih mrežah, ki so razvrščene v redove glede na njihovo natančnost. Končne višine reperjev v višinskih mrežah običajno pridobimo s posredno izravnavo meritev po metodi najmanjših kvadratov. Pogostokrat se iz pragmatičnih razlogov zanemari korelacija med opazovanji in korelacija med višinami danih reperjev. Prav tako se za višine danih reperjev običajno predpostavi, da so brez napak, čeprav imajo v resnici določeno stopnjo natančnosti. V članku je predstavljena alternativna realizacija višinskega referenčnega sistema HVRS71 za Republiko Hrvaško. Obseg podatkov je omejen na nivelmanske mreže 1. in 2. reda. Alternativna realizacija je izvedena z drugačnim konceptom prilagajanja, pri katerem so upoštevane korelacije med opazovanji zaradi uvedbe korelacije višin danih reperjev. Ta metodologija omogoča tudi prenos natančnosti absolutnih višin danih reperjev z nivelmanske mreže višjega reda na natančnost absolutnih višin reperjev nivelmanskih mrež nižjega reda. Tako se doseže objektivna, logična in dejanska porazdelitev natančnosti višin reperjev vzdolž obsega referenčnega sistema višin. Rezultati določajo, koliko sprememba koncepta prilagajanja nivelmanske mreže vpliva na kakovost višinskega referenčnega sistema"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-QJQ2AAS1","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-QJQ2AAS1"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-QJQ2AAS1/7ecd0411-ba69-46cc-b55b-6a37990a3871/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by-nc/4.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Zveza geodetov Slovenije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-QJQ2AAS1/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-QJQ2AAS1"}}}}