Mapping glacier velocities on Svalbard using ERS tandem DInSAR data
Arctique ; Cartographie ; Dynamique glaciaire ; ERS ; Glacier ; Modèle numérique de terrain ; Radar ; Svalbard ; Système d'information géographique ; Télédétection ; Vitesse du glacier
Arctic Region ; Cartography ; Digital elevation model ; ERS ; Geographical information system ; Glacier ; Glacier dynamics ; Radar ; Remote sensing ; Svalbard
-interferometric software. A semi-automatic algorithm is applied to a data set covering glaciers from the arctic archipelago Svalbard. Estimated DinSAR velocities are decomposed into the glacier surface flow direction using a digital elevation model (DEM). Velocity
fields for the glaciers Isachsenfonna, Akademikerbreen and Nordbreen on Svalbard are presented.
Thermal regime of ice-wedge cracking in Adventdalen, Svalbard
Arctique ; Coin de glace ; Fente de gel ; Manteau nival ; Neige ; Périglaciaire ; Régime thermique ; Sol polygonal ; Svalbard ; Température du sol ; Zone froide
Arctic Region ; Cold area ; Ice wedge ; Ice wedges ; Periglacial features ; Snow ; Snow cover ; Soil temperature ; Soil wedge polygon ; Svalbard ; Thermal regime
One year of monitoring (2002-2003) at a low-centred ice-wedge polygon site on Svalbard is described. Ground temperatures were recorded hourly from the top of an ice wedge through the active layer to the ground surface in the central part of a trough
Aerial photography ; Arctic Region ; Cold area ; Comparative study ; Deglaciation ; Ice wedge ; Inherited features ; Norway ; Palaeo-environment ; Patterned ground ; Quaternary ; Svalbard ; Sweden
period of activity in the Younger Dryas cold phase. To gain experience of the dynamics of ice wedges, the high-arctic Adventdalen Valley, Svalbard, was chosen as test area. Secondary wedges observed are interpreted as indicators of climatic cooling.
Climate oscillations as recorded in Svalbard ice core δO 18 records between AD 1200 and 1997
Analyse isotopique ; Années 1200-2000 ; Arctique ; Carotte de glace ; Climat ; Oscillation climatique ; Oxygène 18 ; Spitsbergen ; Svalbard ; Température ; Tendance du climat ; Zone froide
Arctic Region ; Climate ; Climate oscillation ; Climatic trend ; Cold area ; Ice core ; Isotope analysis ; Oxygen 18 ; Spitsbergen ; Svalbard ; Temperature
The AA. apply 2 different time series analytical tools to δ O 18 records from 2 Svalbard ice cores. One ice core is from Lomonosovfonna at 1250 m a.s.l. and the other from Austfonna at 750 m a.s.l. These cores are estimated to cover at least
Contexte environnemental et colonisation végétale des moraines récentes : étude comparée de deux glaciers en versants nord et sud de la presqu'île de Brøgger, Svalbard (79°N)
Arctique ; Biogéographie ; Colonisation végétale ; Donnée ; Dynamique de la végétation ; Déglaciation ; Exposition de versant ; Marge glaciaire ; Mésoclimat ; Petit âge glaciaire ; Réchauffement climatique ; Spitsbergen ; Svalbard ; Végétation
Arctic Region ; Biogeography ; Climatic warming ; Cold area ; Data ; Deglaciation ; Glacier margin ; Little ice age ; Mesoclimate ; Plant colonization ; Slope exposure ; Spitsbergen ; Svalbard ; Vegetation ; Vegetation dynamics