Descripteur
Termes IGN > 1- Descripteurs géographiques > monde (géographie politique) > Océanie (géographie politique)
Océanie (géographie politique)Voir aussi |
Documents disponibles dans cette catégorie (229)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
A kinematic GPS methodology for sea surface mapping, Vanuatu / Marie-Noëlle Bouin in Journal of geodesy, vol 83 n° 12 (December 2009)
[article]
Titre : A kinematic GPS methodology for sea surface mapping, Vanuatu Type de document : Article/Communication Auteurs : Marie-Noëlle Bouin , Auteur ; Valérie Ballu, Auteur ; Stéphane Calmant, Auteur ; Jean-Michel Boré, Auteur ; Eric Folcher, Auteur ; Jérôme Ammann, Auteur Année de publication : 2009 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] GPS en mode cinématique
[Termes IGN] relief de la surface de la mer
[Termes IGN] station de référence
[Termes IGN] subduction
[Termes IGN] surface de la mer
[Termes IGN] VanuatuRésumé : (auteur) During the past few decades, satellite altimetry has brought tremendous new knowledge about the spatial and temporal variations of sea surface heights over the Earth’s oceans. However, the precision is limited over short wavelengths and in coastal areas, and other methods such as kinematic GPS may be needed to fill in this information. We present kinematic GPS work aimed at mapping the sea surface height, with special attention to the precision one can expect. Active marine subduction zones, like the Vanuatu archipelago, may present short wavelength, high amplitude undulations of the sea surface height that are difficult to map with satellite altimetry. This paper presents the methodology used around Santo Island, in Vanuatu, to obtain a well-resolved local sea surface map with a precision of 5–15 cm limited by the sea conditions and the distance from the coastal reference station. We present the results of three campaigns in 2004, 2006 and 2007. Careful observation of the ship behaviour along the surveys as well as simultaneous recording of the ship attitude variations is mandatory to obtain reliable results. We show that the ship GPS antenna height varies with the ship’s velocity and we suggest a method to correct this effect. The final precision is estimated using the crossover differences method. Numéro de notice : A2009-580 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-009-0338-x En ligne : https://doi.org/10.1007/s00190-009-0338-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=88649
in Journal of geodesy > vol 83 n° 12 (December 2009)[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 266-09111 SL Revue Centre de documentation Revues en salle Disponible Improving resolution and accuracy of mean sea surface from kinematic GPS, Vanuatu subduction zone / Marie-Noëlle Bouin in Journal of geodesy, vol 83 n° 11 (November 2009)
[article]
Titre : Improving resolution and accuracy of mean sea surface from kinematic GPS, Vanuatu subduction zone Type de document : Article/Communication Auteurs : Marie-Noëlle Bouin , Auteur ; Valérie Ballu, Auteur ; Stéphane Calmant, Auteur ; Bernard Pelletier, Auteur Année de publication : 2009 Article en page(s) : pp 1017 - 1030 Note générale : biblographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] géoïde local
[Termes IGN] GPS en mode cinématique
[Termes IGN] surface de la mer
[Termes IGN] VanuatuRésumé : (auteur) Satellite altimetry provides an ocean mean sea surface (MSS) map with global coverage and overall excellent precision. However, in some areas, like the Vanuatu archipelago, the coverage and resolution of this tool are not sufficient to correctly map the short scale undulations of the sea surface, due to numerous islands and to strong lithospheric and mantle heterogeneities. New applications such as seafloor geodesy may require local mean surface representation with improved resolution in specific areas. We used sea surface height collected with kinematic GPS during three different cruises in 2004, 2006 and 2007 to reconstruct a homogeneous sea surface map around Santo Island, Vanuatu. We assess the accuracy of this GPS-derived local sea surface to 6–19 cm and evaluate the quality of existing altimetry and gravity-derived MSSs on the Vanuatu archipelago. Observed short scale undulations are interpreted as due to local geodynamics. Numéro de notice : A2009-582 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-009-0320-7 En ligne : https://doi.org/10.1007/s00190-009-0320-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=88651
in Journal of geodesy > vol 83 n° 11 (November 2009) . - pp 1017 - 1030[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 266-09101 SL Revue Centre de documentation Revues en salle Disponible A GIS-based stochastic approach to generating daytime population distributions for vehicle route planning / K. Lau in Transactions in GIS, vol 13 n°5-6 (October/december 2009)
[article]
Titre : A GIS-based stochastic approach to generating daytime population distributions for vehicle route planning Type de document : Article/Communication Auteurs : K. Lau, Auteur Année de publication : 2009 Article en page(s) : pp 481 - 502 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] itinéraire
[Termes IGN] Melbourne
[Termes IGN] milieu urbain
[Termes IGN] modèle stochastique
[Termes IGN] planification urbaine
[Termes IGN] répartition géographique
[Termes IGN] réseau routier
[Termes IGN] surveillance routière
[Termes IGN] transport routierRésumé : (Auteur) This article explores the use of daytime population distributions for vehicle route planning in urban environments when proximity to population is a major consideration. A GIS-based stochastic geocoding algorithm is proposed to generate daytime population distribution patterns using travel survey data. Metropolitan Melbourne in Australia is used as a test case with data collected from the Victorian Activity and Travel Survey between 1994 and 1999. The advantage of employing daytime population distributions for vehicle route planning is then illustrated taking dangerous goods delivery and mobile billboard advertising as examples. Analysis suggests that the proposed algorithm generates population distribution patterns with finer spatial and temporal details than that obtained using other estimation methods. The algorithm also eliminates the problem of over- or under-estimation of population associated with previous attempts using travel survey data and therefore provides more accurate results. Copyright Blackwell Publishing Numéro de notice : A2009-525 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2009.01175.x En ligne : https://doi.org/10.1111/j.1467-9671.2009.01175.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30154
in Transactions in GIS > vol 13 n°5-6 (October/december 2009) . - pp 481 - 502[article]Fitting gravimetric geoid models to vertical deflections / Will E. Featherstone in Journal of geodesy, vol 83 n° 6 (June 2009)
[article]
Titre : Fitting gravimetric geoid models to vertical deflections Type de document : Article/Communication Auteurs : Will E. Featherstone, Auteur Année de publication : 2009 Article en page(s) : pp 583 - 589 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] Australie
[Termes IGN] déviation de la verticale
[Termes IGN] géoïde gravimétrique
[Termes IGN] géoïde local
[Termes IGN] penteRésumé : (Auteur) Regional gravimetric geoid and quasigeoid models are now commonly fitted to GPS-levelling data, which simultaneously absorbs levelling, GPS and quasi/geoid errors due to their inseparability. We propose that independent vertical deflections are used instead, which are not affected by this inseparability problem. The formulation is set out for geoid slopes and changes in slopes. Application to 1,080 astrogeodetic deflections over Australia for the AUSGeoid98 model shows that it is feasible, but the poor quality of the historical astrogeodetic deflections led to some unrealistic values. Copyright Springer Numéro de notice : A2009-286 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-008-0263-4 En ligne : https://doi.org/10.1007/s00190-008-0263-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29916
in Journal of geodesy > vol 83 n° 6 (June 2009) . - pp 583 - 589[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 266-09051 SL Revue Centre de documentation Revues en salle Disponible High resolution temporal variation in wood properties in irrigated and non-irrigated Eucalyptus globulus / David M. Drew in Annals of Forest Science, Vol 66 n° 4 (June 2009)
[article]
Titre : High resolution temporal variation in wood properties in irrigated and non-irrigated Eucalyptus globulus Titre original : Variations temporelles à haute résolution des propriétés du bois d'Eucalyptus globulus irrigués et non irrigués Type de document : Article/Communication Auteurs : David M. Drew, Auteur ; Geoffrey Downes, Auteur ; Anthony P. O'Grady, Auteur ; Jennifer Read, Auteur ; Dale Worledge, Auteur Année de publication : 2009 Article en page(s) : n° 406 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] croissance des arbres
[Termes IGN] dendrométrie
[Termes IGN] densité du bois
[Termes IGN] Eucalyptus globulus
[Termes IGN] qualité du bois
[Termes IGN] Tasmanie
[Vedettes matières IGN] SylvicultureRésumé : (auteur) Environmental determinants of wood properties variation were examined in Eucalyptus globulus, a globally important hardwood plantation species, in southern Tasmania, Australia. Radial variation in wood properties, measured with the SilviScan system, were re-scaled from distance to time abscissa using stem radial growth data measured with dendrometers. With this re-scaled data it was possible to evaluate how water availability and temperature affected wood density, microfibril angle (MFA) and fibre and vessel transverse dimensions in irrigated and non-irrigated trees. Wood density, fibre radial diameter and MFA were sensitive to water availability. Wood density increased and fibre radial diameter decreased in response to reduced water availability. When high water availability was maintained, wood density was negatively correlated with temperature. Together, temperature and soil matric potential explained about 60% of temporal variation in wood density variation. In contrast MFA was not related to temperature but decreased with increasing water stress. Slower growing trees also had lower MFA than faster growing trees. Slower growing trees had a larger number of vessels per unit area of wood than faster growing trees within this even aged stand. However, vessel radius to the 4th power was significantly higher in faster growing trees than in slower growing trees. Overall, E. globulus wood properties were sensitive to temporal changes in environmental conditions (particularly water availability) and associated growth rates. The data provided support for the hypothesis that growth rates are hydraulically mediated. Numéro de notice : A2009-654 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2009017 Date de publication en ligne : 04/06/2009 En ligne : https://www.afs-journal.org/articles/forest/full_html/2009/04/f08354/f08354.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72239
in Annals of Forest Science > Vol 66 n° 4 (June 2009) . - n° 406[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000405 PER Revue Nogent-sur-Vernisson Salle périodiques Exclu du prêt Horizontal and vertical interseismic velocity fields in the Vanuatu subduction zone from GPS measurements: Evidence for a central Vanuatu locked zone / Nicolas Bergeot in Journal of geophysical research : Solid Earth, Vol 114 n° B6 (June 2009)PermalinkLand-use mapping in Australia: satellite imagery and property management / L. Blacklock in Geoinformatics, vol 12 n° 4 (01/06/2009)PermalinkDevelopment of comprehensive geodetic vertical datums for the United States Pacific Territories of American Samoa, Guam, and the Northern Marianas / E. Carlson in SaLIS Surveying and land information science, vol 69 n° 1 (March 2009)PermalinkImplementation of an adaptive salinity risk framework in the Condamine catchment, Queensland Murray-Darling Basin, Australia / A. Biggs in International journal of geographical information science IJGIS, vol 23 n°3-4 (march - april 2009)PermalinkIntegrated storage and querying of spatially varying data quality information in a relational spatial database / Z.M. Ghouse in Transactions in GIS, vol 13 n° 1 (February 2009)PermalinkPermalinkQuantifying indicators of riparian condition in Australian tropical savannas: integrating high spatial resolution imagery and field survey data / K. Johansen in International Journal of Remote Sensing IJRS, vol 29 n°23 - 24 (December 2008)PermalinkDevelopment and testing of a generic sensor model for pushbroom satellite imagery / T. Weser in Photogrammetric record, vol 23 n° 123 (September - November 2008)PermalinkMulti-sensor model-data fusion for estimation of hydrologic and energy flux parameters / L. Renzullo in Remote sensing of environment, vol 112 n° 4 (15/04/2008)PermalinkBest regulation cadastral surveys: as little as possible, as much as necessary / D. Grant in GIM international, vol 21 n° 7 (July 2007)Permalink