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Titre : 1936 oblique aerial images : Spreading the time series of Svalbard glaciers Type de document : Mémoire Auteurs : Frédérique Couderette, Auteur Editeur : Champs-sur-Marne : Ecole nationale des sciences géographiques ENSG Année de publication : 2016 Importance : 81 p. Format : 21 x 30 cm Note générale : Bibliographie
Rapport de projet pluridisciplinaire, cycle Ingénieur 2e annéeLangues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] analyse diachronique
[Termes IGN] glacier
[Termes IGN] image multitemporelle
[Termes IGN] MicMac
[Termes IGN] modèle numérique de surface
[Termes IGN] orthoimage
[Termes IGN] photographie aérienne oblique
[Termes IGN] série temporelle
[Termes IGN] SpitzbergIndex. décimale : PROJET Mémoires : Rapports de projet - stage des ingénieurs de 2e année Résumé : (Auteur) Le Svalbard, archipel norvégien situé dans l’océan Arctique, possède plus de 2100 glaciers couvrant environ 36590 kilomètres carrés, soit 59% de sa superficie totale. Il est constitué de quatre îles principales : Spitsbergen, Nordaustlandet, EdgeØya and BarentsØya. La communauté scientifique étudie le comportement de ces glaciers depuis maintenant quelques dizaines d’années, à l’aide d’outils allant de la photogrammétrie à la chimie. Cette étude porte sur une série de glaciers du Spitsbergen, non loin du centre de recherche de Ny-Ålesund, et sur des photographies obliques aériennes historiques de 1936 redécouvertes récemment. Le MNE produit à partir de ces images est combiné à un MNE plus récent, couvrant la même zone, pour estimer l’évolution de ces glaciers. Un protocole a été établi en vue du traitement de ces données. Il se décompose en plusieurs parties : tout d’abord, l’adaptation des données en vue d’un traitement avec MicMac. Puis, le traitement par MicMac au bout duquel des MNE et orthoimages sont produits. Enfin, la comparaison de ces produits avec des MNE plus récents. Note de contenu : Introduction
1. CONTEXT
1.1. The Department of Geosciences of the university of Oslo
1.2. The Norwegian polar institute
1.3. The Svalbard :a glaciological interesting area
2. DATA
2.1. Historic Images of Svalbard
2.2. Calibration Information
2.3. toposvalbard.npolar.no
3. TOOLS AND EXISTING METHODS
3.1. Existing Methods
3.2. Tools
4. PROCESSING OF CORRECTED IMAGES : ESTABLISHING A WORKFLOW
4.1. Correction of Scanned Images
4.2. Normalization of images
4.3. Relative Orientation
4.4. Absolute Orientation
4.5. Matching
4.6. Automation of the process
5. COMPARING RESULTS : FROM 1936 TO TODAY
5.1. Coregistration of DEMs
5.2. Evolution of glaciers since 1936
ConclusionNuméro de notice : 22619 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Mémoire de projet pluridisciplinaire Organisme de stage : University of Oslo Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83371 Documents numériques
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22619_1936 oblique aerial images : Spreading the time series of Svalbard glaciers.pdfAdobe Acrobat PDFRecent variations of supraglacial lakes on the Baltoro Glacier in the central Karakoram Himalaya and its possible teleconnections with the pacific decadal oscillation / Bijeesh Kozhikkodan Veettil in Geocarto international, vol 31 n° 1 - 2 (January - February 2016)
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Titre : Recent variations of supraglacial lakes on the Baltoro Glacier in the central Karakoram Himalaya and its possible teleconnections with the pacific decadal oscillation Type de document : Article/Communication Auteurs : Bijeesh Kozhikkodan Veettil, Auteur ; Nilceia Bianchini, Auteur ; Ulisses Franz Bremer, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 109 - 119 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] analyse diachronique
[Termes IGN] El Niño-Southern oscillation
[Termes IGN] glacier
[Termes IGN] Himalaya
[Termes IGN] lac glaciaire
[Termes IGN] Pacifique (océan)Résumé : (Auteur) This study discusses the formation and variations of supraglacial lakes on the Baltoro glacier system in the central Karakoram Himalaya during the last four decades. We mapped supraglacial lakes on the Baltoro Glacier from 1978 to 2014 using Landsat MSS, TM, ETM + and LCDM images. Most of the glacial lakes were formed or expanded during the late 1970s–2008. After 2008, the total number and the area of glacial lakes were found to be lesser compared to previous years. We tried to find any teleconnections exists between the glacial lake changes in this region and the pacific decadal oscillation (PDO), which entered its prolonged warm regime in the late 1970s and again to its cold regime in 2008, based on observational investigation. The decrease in the number and area of the supraglacial lakes after 2008 is hypothesised to be linked with the recent cold phase of PDO. Numéro de notice : A2016-205 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2015.1041565 Date de publication en ligne : 20/05/2015 En ligne : http://www.tandfonline.com/doi/full/10.1080/10106049.2015.1041565 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79867
in Geocarto international > vol 31 n° 1 - 2 (January - February 2016) . - pp 109 - 119[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-2016011 RAB Revue Centre de documentation En réserve L003 Disponible Modeling and simulation of glacier avalanche: a case study of Gayari sector glaciers Hazards assessment / Muhammad Ashan Mahboob in IEEE Transactions on geoscience and remote sensing, vol 53 n° 11 (November 2015)
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Titre : Modeling and simulation of glacier avalanche: a case study of Gayari sector glaciers Hazards assessment Type de document : Article/Communication Auteurs : Muhammad Ashan Mahboob, Auteur ; Javed Iqbal, Auteur ; Iqra Atif, Auteur Année de publication : 2015 Article en page(s) : pp 5824 - 5834 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] Afghanistan
[Termes IGN] ArcGIS
[Termes IGN] effondrement de terrain
[Termes IGN] énergie cinétique
[Termes IGN] estimation statistique
[Termes IGN] glacier
[Termes IGN] modélisation 3D
[Termes IGN] risque naturel
[Termes IGN] système d'information géographiqueRésumé : (Auteur) Glacier avalanches are natural hazards that could damage infrastructures and threaten lives in high-altitude mountainous terrains. On April 7, 2012, a massive ice avalanche struck a Pakistani base at Gayari sector, Saltoro Valley, and buried/killed 148 soldiers and civilians. Keeping in view the catastrophe, a study was designed with the objectives to: 1) model and simulate the Gayari sector glacier avalanche incident in terms of height, extent, velocity, pressure, and momentum; 2) generate hazard risk assessment of possible other glacier avalanches in the Saltoro Valley through modeling and simulation; and 3) suitability analysis of current camp sites and recommendation of new safe camps sites locations in the Saltoro valley. To simulate the Gayari sector glacier event and other Glacier possible avalanches, a physical process-based rapid mass movements (RAMMS) was used. The RAMMS has two main components, i.e., Voellmy-Salm (VS) model and random kinetic energy, which deals with variables such as avalanche height and the mean avalanche velocity during the course of simulation. The suitability analysis of current camp sites were achieved using weighted overlay analysis with different constraints in ArcGIS Spatial Analyst. The RAMMS model simulation of the Gayari avalanche event predicted a maximum velocity of 74 ms -1, generating a pressure of 5074 kPa and attaining a height of 45 m, whereas the predicted debris volume on the ground was 3.8145 million m 3. A good agreement was found between actual debris height and extent, as compared with the RAMMS model output. The RAMMS model simulated all the potential tributary glacier avalanches of Saltoro valley very well. The weighted overlay analyses in ArcGIS Spatial Analyst revealed that the existing camp sites are safe and were not threatened by the glacier avalanche hazard. However, it was recommended that the Gayari camp should not be constructed at the same location and should be relocated to the proposed safe camp sites identified in this research study. The proposed methodology developed in the current study could be applied in the Siachen conflict zone for avalanche hazard/risk analysis of all the camp sites located in the valley. Numéro de notice : A2015-773 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2015.2419171 Date de publication en ligne : 15/06/2015 En ligne : https://doi.org/10.1109/TGRS.2015.2419171 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78829
in IEEE Transactions on geoscience and remote sensing > vol 53 n° 11 (November 2015) . - pp 5824 - 5834[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-2015111 SL Revue Centre de documentation Revues en salle Disponible Multi-method monitoring of Glacier d’Argentière dynamics / Lionel Benoit in Annals of Glaciology, vol 56 n° 70 (October 2015)
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Titre : Multi-method monitoring of Glacier d’Argentière dynamics Type de document : Article/Communication Auteurs : Lionel Benoit , Auteur ; Amaury Deheck, Auteur ; Ha-Thai Pham, Auteur ; Flavien Vernier, Auteur ; Emmanuel Trouvé, Auteur ; Luc Moreau, Auteur ; Olivier Martin
, Auteur ; Christian Thom
, Auteur ; Marc Pierrot-Deseilligny
, Auteur ; Pierre Briole, Auteur
Année de publication : 2015 Projets : Géocubes / Article en page(s) : pp 118 - 128 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Alpes (France)
[Termes IGN] glacier
[Termes IGN] surveillance hydrologique
[Termes IGN] vitesseRésumé : (auteur) The flow of Glacier d'Argentière, French Alps, has been extensively studied by glaciologists for >100 years, but high-temporal- and high-spatial-resolution monitoring of its dynamics has rarely been carried out. In this paper, the terminal part of the main glacier was selected to undertake such a survey. The 2 month experiment (September–November 2013) included remote sensing to map the velocity field of the whole area, and a network of in situ measurements to record the ice velocity at the surface as well as at the base of the glacier with high precision and at high temporal resolution. These monitoring methods are combined to produce a comprehensive and reliable picture of the ice flow. Basal and surface in situ measurements are used to precisely monitor the temporal variability of the ice flow at a section of the glacier where crevassed areas and non-cracked ice coexist. The achieved results are an innovative and efficient tool to investigate the acceleration/deceleration pattern heterogeneities in ice flow that occur after heavy rainfall. Numéro de notice : A2015--065 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3189/2015AoG70A985 Date de publication en ligne : 26/07/2017 En ligne : http://dx.doi.org/10.3189/2015AoG70A985 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83257
in Annals of Glaciology > vol 56 n° 70 (October 2015) . - pp 118 - 128[article]Documents numériques
en open access
Multi-method monitoring ... - pdf éditeurAdobe Acrobat PDFMapping the impacts of Iceland's Katla subglacial volcano on the Mýrdalsjökull glacier / Chelsi A. McNeill-Jewer in Cartographica, vol 50 n° 3 (Fall 2015)
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Titre : Mapping the impacts of Iceland's Katla subglacial volcano on the Mýrdalsjökull glacier Type de document : Article/Communication Auteurs : Chelsi A. McNeill-Jewer, Auteur ; Jessica Vu, Auteur ; Lauren E. Oldfield, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 195 - 203 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique
[Termes IGN] cartographie des risques
[Termes IGN] éruption volcanique
[Termes IGN] géothermie
[Termes IGN] glacier
[Termes IGN] Islande
[Termes IGN] point d'intérêtRésumé : (Auteur) Jökulhlaup is the Icelandic term for a sudden and substantial release of subglacial and/or proglacial water. The subglacial volcano Katla and its associated glacier Mýrdalsjökull, near Iceland's southern coast, have the potential to cause catastrophic jökulhlaups through geothermally induced melting and volcanic eruptions. The resulting jökulhlaups can cause destruction of property and detriment to human life. Water-filled ice depressions (termed ice cauldrons) are produced by enhanced geothermal heating/melting and are large enough to be identified through remote sensing; therefore, ice cauldrons can be used to infer geothermal hot-spot locations and melt rates. To assess the risk of surrounding communities and infrastructure, a map of geothermal hot spots, loss of glacial mass, and meltwater flow paths of the Mýrdalsjökull glacier were created and analysed. Using geospatial analysis, it was determined that three hazard zones – two towns, Alftaver (to the east) and Vik (to the south), as well as Iceland's main highway, Route 1 – are directly in the path of potential jökulhlaups originating from the Mýrdalsjökull-Katla complex. Future research should further constrain meltwater flow paths to determine potential flow discharge rates and areas that are at the greatest risk of flooding. Numéro de notice : A2015-567 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/cart.50.3.3197F En ligne : http://www.utpjournals.press/doi/full/10.3138/cart.50.3.3197F Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=77730
in Cartographica > vol 50 n° 3 (Fall 2015) . - pp 195 - 203[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 031-2015031 RAB Revue Centre de documentation En réserve L003 Disponible Low-cost GPS sensors for deformation monitoring / Lionel Benoit in GIM international, vol 29 n° 4 (April 2015)
PermalinkDemarcation of potential avalanche sites using remote sensing and ground observations: a case study of Gangotri glacier / Snehmani A. Bhardwaj in Geocarto international, vol 29 n° 5 - 6 (August - October 2014)
PermalinkGlacier changes using satellite data and effect of climate in Tirungkhad basin located in western Himalaya / Riyaz Ahmad Mir in Geocarto international, vol 29 n° 3 - 4 (June - July 2014)
PermalinkPositionnement GPS précis et en temps réel dans le contexte de réseaux de capteurs sans fil type Geocube / Lionel Benoit (2014)
PermalinkPermalinkSur les traces de Paul-Emile Victor, relevés topographiques 3D au Groenland / Farouk Kadded in XYZ, n° 137 (décembre 2013 - février 2014)
PermalinkGlacier surface velocity estimation using repeat TerraSAR-X images: Wavelet- vs. correlation-based image matching / Adrian Schubert in ISPRS Journal of photogrammetry and remote sensing, vol 82 (August 2013)
PermalinkEstimation of glacier ice extinction using long-wavelength airborne Pol-InSAR / Jayanti J. Sharma in IEEE Transactions on geoscience and remote sensing, vol 51 n° 6 Tome 2 (June 2013)
PermalinkPhotogrammetric techniques for the determination of spatio-temporal velocity fields at glaciar San Rafael, Chile / Hans-Gerd Maas in Photogrammetric Engineering & Remote Sensing, PERS, vol 79 n° 3 (March 2013)
PermalinkSpatially variable surface elevation changes and estimated melt water contribution of Continental Glacier in the Wind River Range, Wyoming, USA, 1966-2011 / Jeffrey A. Vanlooy in Geocarto international, vol 28 n° 1-2 (February - May 2013)
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