{"?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-REL97LNS/b7613aab-148c-43f8-9aea-a7ddb11af970/HTML","dcterms:extent":"50 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-REL97LNS/37f6ad0c-6a76-45f0-9382-c573547d0ba7/PDF","dcterms:extent":"686 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-REL97LNS/9e36054c-2914-4dd8-b3a8-185b29257d53/TEXT","dcterms:extent":"38 KB"}],"edm:TimeSpan":{"@rdf:about":"1953-2025","edm:begin":{"@xml:lang":"en","#text":"1953"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-REL97LNS","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-Y5SOGFOQ"},{"@xml:lang":"sl","#text":"Geologija"}],"dcterms:issued":"2009","dc:creator":"Brenčič, Mihael","dc:format":[{"@xml:lang":"sl","#text":"10 strani"},{"@xml:lang":"sl","#text":"številka:2"},{"@xml:lang":"sl","#text":"letnik:52"},{"@xml:lang":"sl","#text":"str. 165-174"}],"dc:identifier":["ISSN:0016-7789","COBISSID:1714517","URN:URN:NBN:SI:doc-REL97LNS"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Geološki zavod Slovenije"},"dc:subject":[{"@xml:lang":"sl","#text":"časovne vrste"},{"@xml:lang":"sl","#text":"kalcimetrija"},{"@xml:lang":"en","#text":"Ljubljana Marshes"},{"@xml:lang":"sl","#text":"Ljubljansko barje"},{"@xml:lang":"sl","#text":"modeli"},{"@xml:lang":"sl","#text":"sedimentacija"},{"@xml:lang":"sl","#text":"starost"}],"dcterms:temporal":{"@rdf:resource":"1953-2025"},"dc:title":{"@xml:lang":"sl","#text":"Unevenly spaced time series analysis: case study using calcimetry data from BV-1 and BV-2 boreholes in Ljubljansko barje (central Slovenia)| Analiza neenakomernih časovnih vrst: študija kalcimetrijskih podatkov iz vrtin BV-1 in BV-2 na Ljubljanskem barju|"},"dc:description":[{"@xml:lang":"sl","#text":"Statistical analyses of calcimetric data from boreholes BV-1 (north of Podpeč)and BV-2 (south of Črna vas) on Ljubljansko barje in central Slovenia are given. The original data are represented as unevenly spaced time series that are translated into evenly spaced time series. To calculate the interpolation weighted influence function, a model based on the power correlated influence is defined. Parameter selection is performed based on themaximum entropy principle. In the reconstructed time series, autocorrelation and Fourier power spectrum analyses are performed. In both time series, a transition from white noise to red noise was detected. Such behaviour can be described by a Lorentz process. Red noise is the result of a stochastic process with long-term memory. This effect can be seen predominantly in the autocorrelation function of borehole BV-1. In the calcimetric time series of borehole BV-2, periodicity with a period between 10.0 m and 12.5 m was also detected. We suppose that this period reflects climatic fluctuations during the Quaternary Period"},{"@xml:lang":"sl","#text":"V članku je obravnavana statistična analiza kalcimetrijskih podatkov iz vrtin BV-1 (severno od Podpeči) in BV-2 (južno od Črne vasi) na Ljubljanskem barju. Objavljeni podatki predstavljajo neenakomerno časovno vrsto, ki jo je bilo potrebno prevesti v enakomerno časovno vrsto. V ta namen je bil postavljen intepolacijski model, ki temelji na parametrični utežni funkciji s potenčnim vplivom. Parameter utežne funkcije je bil izbran na podlagi principa maksimalne entropije. Na rekonstruiranih časovnih vrstah je bil izveden izračun autokorelacijske funkcije in Fourierjeve spektralne analize. V obeh časovnih vrstah je bil ugotovljen prehod od belega do rdečega šuma. Takšen prehod je opisan z Lorentzovim procesom. Rdeči šum je rezultat stohastičnega procesa z dolgim spominom. Ti efekti se odražajo predvsem na avtokorelogramu vrtine BV-1. Na kalcimetrijski časovni vrsti vrtine BV-2 je ugotovljena tudi periodičnost s periodo med 10 m do 12,5 m. Predpostavljamo, da je ta perioda povezana s klimatskimi nihanji v kvartarju"}],"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-REL97LNS","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-REL97LNS"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-REL97LNS/37f6ad0c-6a76-45f0-9382-c573547d0ba7/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by/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":"Geološki zavod Slovenije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-REL97LNS/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-REL97LNS"}}}}