FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W7381361> ?p ?o ?g. }

• W7381361 endingPage "413" @default.
• W7381361 startingPage "407" @default.
• W7381361 abstract "The main purpose of this study is to compute a gravimetric geoid model of Greece using the least squares modification method developed at KTH. In regional gravimetric geoid determination, the modified Stokes’ formula that combines local terrestrial data with a global geopotential model is often used nowadays. In this study, the optimum modification of Stokes’ formula, introduced by Sjöberg (2003), is employed so that the expected mean square error (MSE) of the combined geoid height is minimized. According to this stochastic method, the geoid height is first computed from modified Stokes’ formula using surface gravity data and a global geopotential model (GGM). The precise geoid height is then obtained by adding the topographic, downward continuation, atmospheric and ellipsoidal corrections to the approximate geoid height. In this study the downward continuation correction was not considered for the precise geoid height computations due to a limited DEM. The dataset used for the computations, consisted of terrestrial gravimetric measurements, a DEM model and GPS/Levelling data for the Greek region. Three global geopotential models (EGM96, EIGEN-GRACE02S, EIGEN-GL04C) were tested for choosing the best GGM to be combined into the final solution. Regarding the evaluation and refinement of the terrestrial gravity measurements, the cross-validation technique has been used for detection of outliers. The new Greek gravimetric geoid model was evaluated with 18 GPS/Levelling points of the Greek geodetic network. After using a 7-parameter model to fit the geoid model to the GPS/Levelling data, the agreement between the absolute geoid heights derived from the gravimetric method and the GPS/Levelling data, was estimated to 27 cm while the agreement for the relative geoid heights after the fitting, to 0.9 ppm. In an optimal case study, considering the accuracies of the ellipsoidal and orthometric heights as $$sigma _h approx pm 10,{textrm{cm}}$$ and $$sigma _H approx pm 20,{textrm{cm}}$$ respectively, the RMS fit of the model with the GPS/Levelling data was estimated to $$sigma _N approx pm 15,{textrm{cm}}$$ . The geoid model computed in this study was also compared with some previous Greek geoid models, yielding better external accuracy than them." @default.
• W7381361 created "2016-06-24" @default.
• W7381361 creator A5016605168 @default.
• W7381361 creator A5042590505 @default.
• W7381361 creator A5050101693 @default.
• W7381361 creator A5086643514 @default.
• W7381361 date "2010-01-01" @default.
• W7381361 modified "2023-10-03" @default.
• W7381361 title "Determination of a Gravimetric Geoid Model of Greece Using the Method of KTH" @default.
• W7381361 cites W1662506623 @default.
• W7381361 cites W1883685208 @default.
• W7381361 cites W1971375144 @default.
• W7381361 cites W2006663855 @default.
• W7381361 cites W2007106142 @default.
• W7381361 cites W2025070259 @default.
• W7381361 cites W2109094119 @default.
• W7381361 cites W2143593077 @default.
• W7381361 cites W4230228489 @default.
• W7381361 doi "https://doi.org/10.1007/978-3-642-10634-7_54" @default.
• W7381361 hasPublicationYear "2010" @default.
• W7381361 type Work @default.
• W7381361 sameAs 7381361 @default.
• W7381361 citedByCount "9" @default.
• W7381361 countsByYear W73813612013 @default.
• W7381361 countsByYear W73813612014 @default.
• W7381361 countsByYear W73813612015 @default.
• W7381361 countsByYear W73813612021 @default.
• W7381361 countsByYear W73813612023 @default.
• W7381361 crossrefType "book-chapter" @default.
• W7381361 hasAuthorship W7381361A5016605168 @default.
• W7381361 hasAuthorship W7381361A5042590505 @default.
• W7381361 hasAuthorship W7381361A5050101693 @default.
• W7381361 hasAuthorship W7381361A5086643514 @default.
• W7381361 hasBestOaLocation W73813612 @default.
• W7381361 hasConcept C100260852 @default.
• W7381361 hasConcept C113346285 @default.
• W7381361 hasConcept C127313418 @default.
• W7381361 hasConcept C13280743 @default.
• W7381361 hasConcept C160121416 @default.
• W7381361 hasConcept C180966878 @default.
• W7381361 hasConcept C41008148 @default.
• W7381361 hasConcept C60229501 @default.
• W7381361 hasConcept C76155785 @default.
• W7381361 hasConcept C8058405 @default.
• W7381361 hasConcept C80989030 @default.
• W7381361 hasConceptScore W7381361C100260852 @default.
• W7381361 hasConceptScore W7381361C113346285 @default.
• W7381361 hasConceptScore W7381361C127313418 @default.
• W7381361 hasConceptScore W7381361C13280743 @default.
• W7381361 hasConceptScore W7381361C160121416 @default.
• W7381361 hasConceptScore W7381361C180966878 @default.
• W7381361 hasConceptScore W7381361C41008148 @default.
• W7381361 hasConceptScore W7381361C60229501 @default.
• W7381361 hasConceptScore W7381361C76155785 @default.
• W7381361 hasConceptScore W7381361C8058405 @default.
• W7381361 hasConceptScore W7381361C80989030 @default.
• W7381361 hasLocation W73813611 @default.
• W7381361 hasLocation W73813612 @default.
• W7381361 hasOpenAccess W7381361 @default.
• W7381361 hasPrimaryLocation W73813611 @default.
• W7381361 hasRelatedWork W1020314548 @default.
• W7381361 hasRelatedWork W1592037786 @default.
• W7381361 hasRelatedWork W1996944100 @default.
• W7381361 hasRelatedWork W2021269421 @default.
• W7381361 hasRelatedWork W2169974597 @default.
• W7381361 hasRelatedWork W2463151682 @default.
• W7381361 hasRelatedWork W4226068746 @default.
• W7381361 hasRelatedWork W42911034 @default.
• W7381361 hasRelatedWork W43096987 @default.
• W7381361 hasRelatedWork W956690126 @default.
• W7381361 isParatext "false" @default.
• W7381361 isRetracted "false" @default.
• W7381361 magId "7381361" @default.
• W7381361 workType "book-chapter" @default.