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Auteur Muneendra Kumar |
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An object-oriented shared data model for GIS and distributed hydrologic models / Muneendra Kumar in International journal of geographical information science IJGIS, vol 24 n°7-8 (july 2010)
[article]
Titre : An object-oriented shared data model for GIS and distributed hydrologic models Type de document : Article/Communication Auteurs : Muneendra Kumar, Auteur ; G. Bhatt, Auteur ; C. Duffy, Auteur Année de publication : 2010 Article en page(s) : pp 1061 - 1079 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] composant SIG
[Termes IGN] interface utilisateur
[Termes IGN] modèle conceptuel de données localisées
[Termes IGN] modèle hydrographique
[Termes IGN] modèle orienté objet
[Termes IGN] UMLRésumé : (Auteur) Distributed physical models for the space-time distribution of water, energy, vegetation, and mass flow require new strategies for data representation, model domain decomposition, a priori parameterization, and visualization. The geographic information system (GIS) has been traditionally used to accomplish these data management functionalities in hydrologic applications. However, the interaction between the data management tools and the physical model are often loosely integrated and nondynamic. This is because (a) the data types, semantics, resolutions, and formats for the physical model system and the distributed data or parameters may be different, with significant data preprocessing required before they can be shared; (b) the management tools may not be accessible or shared by the GIS and physical model; and (c) the individual systems may be operating system dependent or are driven by proprietary data structures. The impediment to seamless data flow between the two software components has the effect of increasing the model setup time and analysis time of model output results, and also makes it restrictive to perform sophisticated numerical modeling procedures (real-time forecasting, sensitivity analysis, etc.) that utilize extensive GIS data. These limitations can be offset to a large degree by developing an integrated software component that shares data between the (hydrologic) model and the GIS modules. We contend that the prerequisite for the development of such an integrated software component is a 'shared data model', which is designed using an object-oriented strategy. Here we present the design of such a shared data model taking into consideration the data type descriptions, identification of data classes, relationships, and constraints. The developed data model has been used as a method base for developing a coupled GIS interface to Penn State Integrated Hydrologic Model (PIHM), called PIHMgis. Numéro de notice : A2010-320 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810903289460 En ligne : https://doi.org/10.1080/13658810903289460 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30514
in International journal of geographical information science IJGIS > vol 24 n°7-8 (july 2010) . - pp 1061 - 1079[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-2010041 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010042 RAB Revue Centre de documentation En réserve L003 Disponible An efficient domain decomposition framework for accurate representation of geodata in distributed hydrologic models / Muneendra Kumar in International journal of geographical information science IJGIS, vol 23 n°11-12 (november 2009)
[article]
Titre : An efficient domain decomposition framework for accurate representation of geodata in distributed hydrologic models Type de document : Article/Communication Auteurs : Muneendra Kumar, Auteur ; G. Bahtt, Auteur ; C. Duffy, Auteur Année de publication : 2009 Article en page(s) : pp 1569 - 1596 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] décomposition spatiale
[Termes IGN] hydrogéologie
[Termes IGN] hydrographie de surface
[Termes IGN] modèle hydrographique
[Termes IGN] objet géographique
[Termes IGN] visualisation de données
[Vedettes matières IGN] GéovisualisationRésumé : (Auteur) Physically-based, fully-distributed hydrologic models simulate hydrologic state variables in space and time while using information regarding heterogeneity in climate, land use, topography and hydrogeology. Since fine spatio-temporal resolution and increased process dimension will have large data requirements, there is a practical need to strike a balance between descriptive detail and computational load for a particular model application. In this paper, we present a flexible domain decomposition strategy for efficient and accurate integration of the physiographic, climatic and hydrographic watershed features. The approach takes advantage of different GIS feature types while generating high-quality unstructured grids with user-specified geometrical and physical constraints. The framework is able to anchor the efficient capture of spatially distributed and temporally varying hydrologic interactions and also ingest the physical prototypes effectively and accurately from a geodatabase. The proposed decomposition framework is a critical step in implementing high quality, multiscale, multiresolution, temporally adaptive and nested grids with least computational burden. We also discuss the algorithms for generating the framework using existing GIS feature objects. The framework is successfully being used in a finite volume based integrated hydrologic model. The framework is generic and can be used in other finite element/volume based hydrologic models. Copyright Taylor & Francis Numéro de notice : A2009-521 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810802344143 En ligne : https://doi.org/10.1080/13658810802344143 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30150
in International journal of geographical information science IJGIS > vol 23 n°11-12 (november 2009) . - pp 1569 - 1596[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-09071 RAB Revue Centre de documentation En réserve L003 Disponible 079-09072 RAB Revue Centre de documentation En réserve L003 Disponible Evaluation of hyperspectral data for geological mapping / Muneendra Kumar in Geoinformatics, vol 9 n° 6 (01/09/2006)
[article]
Titre : Evaluation of hyperspectral data for geological mapping Type de document : Article/Communication Auteurs : Muneendra Kumar, Auteur ; T.N. Singh, Auteur Année de publication : 2006 Article en page(s) : pp 26 - 31 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bande spectrale
[Termes IGN] carte géologique
[Termes IGN] cartographie géologique
[Termes IGN] fréquence
[Termes IGN] identification automatique
[Termes IGN] image hyperspectrale
[Termes IGN] minéralogie
[Termes IGN] réflectance spectrale
[Termes IGN] spectromètre imageur
[Termes IGN] surveillance géologiqueRésumé : (Auteur) Hyperspectral remote sensing, the measurements of the Earth's surface in up to hundreds of spectral images, provides a unique means of remotely mapping mineralogy. A wide variety of hyperspectral data are now available along with operational methods for quantitatively analysing the data and producing mineral maps. This paper is meant to illustrate the potential of these data and how it can be used as a tool to aid detailed geologic mapping and exploration. Copyright GEOinformatics Numéro de notice : A2006-386 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28110
in Geoinformatics > vol 9 n° 6 (01/09/2006) . - pp 26 - 31[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 262-06061 SL Revue Centre de documentation Revues en salle Disponible Crop canopy spectral reflectance / Muneendra Kumar in International Journal of Remote Sensing IJRS, vol 9 n° 2 (February 1988)
[article]
Titre : Crop canopy spectral reflectance Type de document : Article/Communication Auteurs : Muneendra Kumar, Auteur Année de publication : 1988 Article en page(s) : pp 285 - 294 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] absorption
[Termes IGN] couvert végétal
[Termes IGN] cultures
[Termes IGN] diffusion du rayonnement
[Termes IGN] indice de végétation
[Termes IGN] réflectance spectrale
[Termes IGN] réflectance végétale
[Termes IGN] réflexion (rayonnement)Numéro de notice : A1988-053 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431168808954852 En ligne : https://doi.org/10.1080/01431168808954852 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=24632
in International Journal of Remote Sensing IJRS > vol 9 n° 2 (February 1988) . - pp 285 - 294[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-88021 RAB Revue Centre de documentation En réserve L003 Disponible Monitoring of crustal movements in the San Andreas Fault zone by a satellite-borne ranging system / Muneendra Kumar (1976)
Titre : Monitoring of crustal movements in the San Andreas Fault zone by a satellite-borne ranging system Type de document : Rapport Auteurs : Muneendra Kumar, Auteur Editeur : Colombus (Ohio) : Ohio State University Année de publication : 1976 Collection : Reports of the Department of Geodetic Science num. 243 Importance : 143 p. Format : 21 x 27 cm Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] Californie (Etats-Unis)
[Termes IGN] déformation de la croute terrestre
[Termes IGN] faille géologique
[Termes IGN] surveillance géologique
[Termes IGN] télémétrie laser sur satelliteIndex. décimale : 30.82 Applications géophysiques de géodésie spatiale Numéro de notice : 47904 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport de recherche Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=58746 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 47904-01 30.82 Livre Centre de documentation Géodésie Disponible Free geometric adjustment of the SECOR equatorial network (solution SECOR-27) / Ivan I. Mueller (1973)PermalinkGeometric adjustment of the South American satellite densification (PC-1000) network / Ivan I. Mueller (1973)PermalinkCoordinate transformation by minimizing correlations between parameters / Muneendra Kumar (1972)Permalink