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Spatial analysis of high-resolution urban thermal patterns in Vojvodina, Serbia / Dusan Jovanovic in Geocarto international, vol 30 n° 5 - 6 (May - July 2015)  

Public [article]  inGeocarto international > vol 30 n° 5 - 6 (May - July 2015) . - pp 483 - 505 Titre : Spatial analysis of high-resolution urban thermal patterns in Vojvodina, Serbia Type de document : Article/Communication Auteurs : Dusan Jovanovic, Auteur ; Miro Govedarica, Auteur ; Filip Sabo, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 483 - 505 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] couvert végétal [Termes IGN] DMC [Termes IGN] image Landsat-ETM+ [Termes IGN] image Landsat-TM [Termes IGN] image Worldview [Termes IGN] occupation du sol [Termes IGN] régression linéaire [Termes IGN] Serbie [Termes IGN] surface imperméable [Termes IGN] température au sol Résumé : (auteur) Main objective of this study was to establish a relationship between land cover and land surface temperature (LST) in urban and rural areas. The research was conducted using Landsat, WorldView-2 (WV-2) and Digital Mapping Camera. Normalised difference vegetation index and normalised difference built-up index were used for establishing the relation between built-up area, vegetation cover and LST for spatial resolution of 30 m. Impervious surface and vegetation area generated from Digital Mapping Camera from Intergraph and WV-2 were used to establish the relation between built-up area, vegetation cover and LST for spatial resolutions of 0.1, 0.5 and 30 m. Linear regression models were used to determine the relationship between LST and indicators. Main contribution of this research is to establish the use of combining remote sensing sensors with different spectral and spatial resolution for two typical settlements in Vojvodina. Correlation coefficients between LST and LST indicators ranged from 0.602 to 0.768. Numéro de notice : A2015-293 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2014.985747#abstract Date de publication en ligne : 11/12/2014 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2014.985747#abstract Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76441 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2015031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Context-aware abstraction and generalization of street networks: two cognitively engineered user-oriented approaches using network Voronoi diagrams / Mahdi Rahimi in Geocarto international, vol 30 n° 5 - 6 (May - July 2015)  

Public [article]  inGeocarto international > vol 30 n° 5 - 6 (May - July 2015) . - pp 560 - 579 Titre : Context-aware abstraction and generalization of street networks: two cognitively engineered user-oriented approaches using network Voronoi diagrams Type de document : Article/Communication Auteurs : Mahdi Rahimi, Auteur ; Mohammad Reza Malek, Auteur Année de publication : 2015 Article en page(s) : pp 560 - 579 Langues : Anglais (eng) Descripteur : [Termes IGN] calcul d'itinéraire [Termes IGN] diagramme de Voronoï [Termes IGN] généralisation de réseaux [Termes IGN] prise en compte du contexte [Termes IGN] recherche du chemin optimal, algorithme de [Termes IGN] réseau routier [Vedettes matières IGN] Généralisation Résumé : (auteur) Generalization and spatial contextual awareness are prevalent concepts in geographic information systems. This study adopted a context-dependent user-centred network generalization method to create a sub-network for optimal route finding. The results show an increase in the number of preferred traversed edges. A route presentation approach is suggested that is based on cognitively engineered user-oriented abstraction of street network. Successive abstractions hierarchize the street network to create a hierarchical presentation structure. The route is projected onto one level in the structure. Then, instead of showing the exact route, the network Voronoi regions represented by the projected route are shown. Experience indicates that the suggested method is an efficient way of route presentation for a hierarchical regionalized structure of a human cognitive map. Numéro de notice : A2015-292 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2014.985742#abstract Date de publication en ligne : 15/01/2015 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2014.985742#abstract Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76442 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2015031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Multispectral sensor spectral resolution simulations for generation of hyperspectral vegetation indices from Hyperion data / Prabir Das in Geocarto international, vol 30 n° 5 - 6 (May - July 2015)  

Public [article]  inGeocarto international > vol 30 n° 5 - 6 (May - July 2015) . - pp 686 - 700 Titre : Multispectral sensor spectral resolution simulations for generation of hyperspectral vegetation indices from Hyperion data Type de document : Article/Communication Auteurs : Prabir Das, Auteur ; M.V.R. Seshasai, Auteur Année de publication : 2015 Article en page(s) : pp 686 - 700 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] agriculture [Termes IGN] capteur hyperspectral [Termes IGN] image EO1-Hyperion [Termes IGN] image hyperspectrale [Termes IGN] indice de végétation [Termes IGN] pouvoir de résolution spectrale [Termes IGN] rééchantillonnage [Termes IGN] simulation numérique [Termes IGN] surveillance de la végétation Résumé : (Auteur) The use of multispectral satellite sensors for generation of hyperspectral indices is restricted because of their coarse spectral resolutions. In this study, we attempted to synthesize a few of these hyperspectral indices, viz. RedEdge Normalized Difference Vegetation Index (NDVI705), Plant Senescence Reflectance Index (PSRI) and Normalized-Difference-Infrared-Index (NDII), for crop stress monitoring at regional scale using multispectral images, simulated from Hyperion data. The Hyperion data were resampled and simulated to corresponding spatial and spectral resolutions of AWiFS, OCM-2 and MODIS sensors using their respective filter function. Different possible combinations of two bands (i.e. simple difference, simple ratio and normalized difference) were computed using synthetic spectral bands of each sensor, and were regressed with NDVI705, PSRI and NDII. Models with highest correlation were selected and inverted on Hyperion data of another date to synthesize respective multispectral indices. Synthetic broad band indices of multispectral sensors with their respective narrow band indices of Hyperion were found to be in good agreement. Numéro de notice : A2015-307 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2014.973065#abstract Date de publication en ligne : 31/10/2014 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2014.973065#abstract Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76529 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-2015031	RAB	Revue	Centre de documentation	En réserve L003	Disponible