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The stability of tide gauges in the south Pacific determined from multiepoch geodetic levelling, 1992 to 2010 / Manoj Nilesh Deo in Marine geodesy, vol 36 n° 3 (September - November 2013)  

Public [article]  inMarine geodesy > vol 36 n° 3 (September - November 2013) . - pp 261 - 284 Titre : The stability of tide gauges in the south Pacific determined from multiepoch geodetic levelling, 1992 to 2010 Type de document : Article/Communication Auteurs : Manoj Nilesh Deo, Auteur ; Ramesh Govind, Auteur ; Ahmed El-Mowafy, Auteur Année de publication : 2013 Article en page(s) : pp 261 - 284 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse diachronique [Termes IGN] Cook (îles) [Termes IGN] données marégraphiques [Termes IGN] marée océanique [Termes IGN] niveau moyen des mers [Termes IGN] nivellement par GPS [Termes IGN] Pacifique Sud [Termes IGN] repère de nivellement [Termes IGN] Salomon (îles) [Termes IGN] test de performance [Termes IGN] Vanuatu [Vedettes matières IGN] Altimétrie Résumé : (Auteur) Tide gauge data is important for determining global or local sea level rise with respect to a global geocentric reference frame. Data from repeated precise levelling connections between the tide gauges and a series of coastal and inland benchmarks, including Continuous GPS (CGPS) benchmarks, are used to determine the stability of tide gauges at 12 locations in the South Pacific. The method for determining this stability is based on a constant velocity model which minimises the net movement amongst a set of datum benchmarks surveyed since the installation of the tide gauges. When assessed at a 95% confidence interval, and with the exception of the Solomon Islands, none of the tide gauges were found to be in motion relative to their CGPS benchmarks. The Solomon Islands estimate is considered to be unreliable since the CGPS benchmark was recently established and has been surveyed fewer than three times. In Tonga and Cook Islands, the tide gauges were found to be disturbed or affected by survey errors whereas the Vanuatu results were affected by earthquakes. Numéro de notice : A2013-711 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1080/01490419.2013.786003 Date de publication en ligne : 18/03/2016 En ligne : https://doi.org/10.1080/01490419.2013.786003 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32847 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
230-2013031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Development of a vector-based method for coastal bluffline mapping using LiDAR data and a comparison study in the area of lake Erie / Yunjae Choung in Marine geodesy, vol 36 n° 3 (September - November 2013)  

Public [article]  inMarine geodesy > vol 36 n° 3 (September - November 2013) . - pp 285 - 302 Titre : Development of a vector-based method for coastal bluffline mapping using LiDAR data and a comparison study in the area of lake Erie Type de document : Article/Communication Auteurs : Yunjae Choung, Auteur ; Rongxing Li, Auteur ; Myung-Hee Jo, Auteur Année de publication : 2013 Article en page(s) : pp 285 - 302 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] Erié, lac [Termes IGN] extraction du relief [Termes IGN] falaise [Termes IGN] Ohio (Etats-Unis) [Termes IGN] pente [Termes IGN] rivage [Termes IGN] triangulation de Delaunay Résumé : (Auteur) This paper introduces a new method for bluffline extraction based on analysis of surface normal vectors derived from a 2.5-dimensional Delaunay triangulation network generated using a set of LiDAR points. The developed method has been implemented and tested for the extraction of blufflines in a section of the Lake Erie coastline near Painesville, Ohio. Comparison of the research results with those generated by a method for bluffline extraction based on slope information along elevation profiles on transects shows an improvement in both horizontal and vertical accuracies in situations where the bluff has a relatively sharp edge formation. Numéro de notice : A2013-712 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/01490419.2013.813878 Date de publication en ligne : 03/11/2015 En ligne : https://doi.org/10.1080/01490419.2013.813878 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32848 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
230-2013031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Progress in marine oil spill optical remote sensing: Detected targets, spectral response characteristics, and theories / Lu yingcheng in Marine geodesy, vol 36 n° 3 (September - November 2013)  

Public [article]  inMarine geodesy > vol 36 n° 3 (September - November 2013) . - pp 334 - 346 Titre : Progress in marine oil spill optical remote sensing: Detected targets, spectral response characteristics, and theories Type de document : Article/Communication Auteurs : Lu yingcheng, Auteur ; Xiang Li, Auteur ; Qingjiu Tian, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 334 - 346 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] détection automatique [Termes IGN] détection d'objet [Termes IGN] distribution du coefficient de réflexion bidirectionnelle BRDF [Termes IGN] marée noire [Termes IGN] pollution des mers [Termes IGN] réponse spectrale [Termes IGN] volume (grandeur) Résumé : (Auteur) Different oil spill pollution types could be produced in oil transport and weathering processes. Investigation of these pollution types is beneficial for oil spill recovery and processing. Optical remote sensing techniques play an important role in marine oil spill monitoring and have the ability to identify different oil spill pollution types. Recently, research on oil spill optical remote sensing has made much progress in detecting targets, identifying spectral response characteristics, and formulating theories. Floating black oil, oil slicks, and oil-water mixture in marine oil spill accidents are the main targets to be investigated by optical remote sensors. The visible spectral response differences of these targets are the base of oil spill optical remote sensing research. Bi-directional reflectance distribution function, light interference, absorption, and scattering of targets produce different spectra. Therefore, oil spill optical remote sensing could be used to identify the main oil spill pollution types and estimate oil spill volume. Numéro de notice : A2013-713 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/01490419.2013.793633 Date de publication en ligne : 14/12/2009 En ligne : https://doi.org/10.1080/01490419.2013.793633 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32849 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
230-2013031	RAB	Revue	Centre de documentation	En réserve L003	Disponible