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Auteur D. Fitzner |
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Estimation of precipitation fields from 1-minute rain gauge time series – comparison of spatial and spatio-temporal interpolation methods / D. Fitzner in International journal of geographical information science IJGIS, vol 29 n° 9 (September 2015)
[article]
Titre : Estimation of precipitation fields from 1-minute rain gauge time series – comparison of spatial and spatio-temporal interpolation methods Type de document : Article/Communication Auteurs : D. Fitzner, Auteur ; Monika Sester, Auteur Année de publication : 2015 Article en page(s) : pp 1668 - 1693 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] analyse spatio-temporelle
[Termes IGN] géostatistique
[Termes IGN] interpolation
[Termes IGN] précipitation
[Termes IGN] série temporelleRésumé : (Auteur) Accurate estimations of spatio-temporal fields at unsampled locations are important in a number of applications. Often, spatio-temporal fields are advected, which means the change in field values over time at a particular point in space stems to a large extent from motion of a more or less constant spatial field. For such dynamic fields, interpolation methods including information on the motion behaviour of the field are promising extensions of solely spatial (snapshot) and symmetric spatio-temporal methods. In this paper, the performance of different deterministic and geostatistical interpolation methods is compared for precipitation estimation from 1-minute time series of spatially distributed rain gauges. The focus is on spatio-temporal methods that include information on the motion behaviour of the rainfield, estimated from weather radar using optical flow. The different interpolation methods are introduced and evaluated using rain gauge measurements of a 15-day period and cross-validation. The results show that including information on the motion behaviour significantly improves interpolation quality in terms of RMSE. Numéro de notice : A2015-609 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2015.1040022 En ligne : https://doi.org/10.1080/13658816.2015.1040022 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78038
in International journal of geographical information science IJGIS > vol 29 n° 9 (September 2015) . - pp 1668 - 1693[article]Functional description of geoprocessing services as conjunctive datalog queries / D. Fitzner in Geoinformatica, vol 15 n° 1 (January 2011)
[article]
Titre : Functional description of geoprocessing services as conjunctive datalog queries Type de document : Article/Communication Auteurs : D. Fitzner, Auteur ; J. Hoffmann, Auteur ; E. Klien, Auteur Année de publication : 2011 Article en page(s) : pp 191 - 221 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] appariement de données localisées
[Termes IGN] découverte de connaissances
[Termes IGN] programmation en logique
[Termes IGN] requête spatiale
[Termes IGN] service web géographique
[Termes IGN] Web Processing Service
[Termes IGN] web sémantiqueRésumé : (Auteur) Discovery of suitable web services is a crucial task in Spatial Data Infrastructures (SDI). In this work, we develop a novel approach to the discovery of geoprocessing services (WPS). Discovery requests and Web Processing Services are annotated as conjunctive queries in a logic programming (LP) language and the discovery process is based on Logic Programming query containment checking between these descriptions. Besides the types of input and output, we explicitly formalise the relation between them and hence are able to capture the functionality of a WPS more precisely. The use of Logic Programming query containment allows for effective reasoning during discovery. Furthermore, the relative simplicity of the semantic descriptions is advantageous for their creation by non-logics experts. The developed approach is applicable in the Web Service Modeling Framework (WSMF), a state-of-the-art semantic web service framework. Numéro de notice : A2011-033 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1007/s10707-009-0093-4 Date de publication en ligne : 09/10/2009 En ligne : https://doi.org/10.1007/s10707-009-0093-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30814
in Geoinformatica > vol 15 n° 1 (January 2011) . - pp 191 - 221[article]Réservation
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