The Relief Inlet quadrangle is the second product of a cartographic project involving the geomorphological and glaciological survey of Victoria Land, and conducted in the framework of the Italian National Antarctic Research Program (PNRA). The map covers the southern portion of Terra Nova Bay and the northern margin of the Scott Coast (75° S–76° S, 162° E–166° 30’ E). Three of the major outlet glaciers of Victoria Land flow into Terra Nova Bay (the Priestley, Reeves and David glaciers). The Priestley and Reeves glaciers drain the SE portion of the Talos Dome area and part of the northern Victoria Land névées, and merge to form the Nansen Ice Sheet (the name given by the first explorers, although it is technically an ice shelf). The David Glacier, the largest outlet glacier in Victoria Land, flows from eastern Dome C and southern Talos Dome, and drains the inner part of the plateau; its seaward extension, the Drygalski Ice Tongue, extends into the Ross Sea for almost 100 km. Local ice fields, within a few tens of kilometres of the Transantarctic Mountains, feed the floating glacier tongues along the Scott Coast (Clarke, Cheetham, and Harbord Ice Tongues). Geomorphological and glaciological features are represented on a satellite image mosaic with a spatial resolution of 30 m (Landsat TM images 062-113 and 062-114, January 17, 1990). The image was georeferenced by identifying the ground control points determined through GPS measurements. It was rectified to a Lambert Conformal Conic cartographic projection (standard parallels 72° 40’S and 75° 20’S, WGS84) using a linear conversion matrix with a RMS error of less than two pixels. The origin, spatial distribution, extension and density of landscape features and superficial deposits are represented. Features originated from several morphogenetic agents are distinguished and mapped with different colours and symbols. The map also gives information on the chronological sequence of landforms and deposits. Particular attention is devoted to glaciological features, and selected ice-thickness radar profiles are reported.
Relief Inlet Quadrangle, Victoria Land, Antarctica 1:250,000 (Antarctic Geomorphological and Glaciological Map Series).
BARONI, CARLO;SALVATORE, MARIA CRISTINA;
2005-01-01
Abstract
The Relief Inlet quadrangle is the second product of a cartographic project involving the geomorphological and glaciological survey of Victoria Land, and conducted in the framework of the Italian National Antarctic Research Program (PNRA). The map covers the southern portion of Terra Nova Bay and the northern margin of the Scott Coast (75° S–76° S, 162° E–166° 30’ E). Three of the major outlet glaciers of Victoria Land flow into Terra Nova Bay (the Priestley, Reeves and David glaciers). The Priestley and Reeves glaciers drain the SE portion of the Talos Dome area and part of the northern Victoria Land névées, and merge to form the Nansen Ice Sheet (the name given by the first explorers, although it is technically an ice shelf). The David Glacier, the largest outlet glacier in Victoria Land, flows from eastern Dome C and southern Talos Dome, and drains the inner part of the plateau; its seaward extension, the Drygalski Ice Tongue, extends into the Ross Sea for almost 100 km. Local ice fields, within a few tens of kilometres of the Transantarctic Mountains, feed the floating glacier tongues along the Scott Coast (Clarke, Cheetham, and Harbord Ice Tongues). Geomorphological and glaciological features are represented on a satellite image mosaic with a spatial resolution of 30 m (Landsat TM images 062-113 and 062-114, January 17, 1990). The image was georeferenced by identifying the ground control points determined through GPS measurements. It was rectified to a Lambert Conformal Conic cartographic projection (standard parallels 72° 40’S and 75° 20’S, WGS84) using a linear conversion matrix with a RMS error of less than two pixels. The origin, spatial distribution, extension and density of landscape features and superficial deposits are represented. Features originated from several morphogenetic agents are distinguished and mapped with different colours and symbols. The map also gives information on the chronological sequence of landforms and deposits. Particular attention is devoted to glaciological features, and selected ice-thickness radar profiles are reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
