Surface topography of Dome Concordia (Antarctica) from kinematic interferential GPS and bedrock topography

被引：13

作者：

Capra, A ^{[1
]}

Cefalo, R

Gandolfi, S

Manzoni, G

Tabacco, IE

Vittuari, L

机构：

[1] Univ Bologna, Dept Struct Transport Water Surveying & Territori, DISTART, I-40136 Bologna, Italy

[2] Univ Trieste, Dept Civil Engn, I-34127 Trieste, Italy

[3] Univ Milan, Dept Earth Sci, Div Geophys, I-20129 Milan, Italy

来源：

ANNALS OF GLACIOLOGY, VOL 30, 2000 | 2000年 / 30卷

关键词：

D O I：

10.3189/172756400781820606

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A new plano-altimetric map of the Dome Concordia (Dome C) area was drawn up from 1995/96 kinematic double-frequency global-positioning-system (GPS) data of two different projects, as well as static GPS data from a geodetic net for deformation analysis and ice-flow velocity measurements covering an area of about 2000 km(2). The GPS surveys were carried out for EPICA during the 10th and 11th Italian Expeditions to choose the optimal location for deep ice-core drilling at Dome C. The accuracy of the kinematic survey was tested by analysing the height-value differences at intersections between different profiles; values ranged from 50-150 mm. The new map was compared with the 1993 kinematic interferential GPS data and residuals between the 1993 and 1995 data were calculated. The surface topographic values were used to calculate the elevation of the Dome C area bedrock, obtained from the reference ground-based and airborne radio-echo-sounding surveys.

引用

页码：42 / 46

页数：5

共 11 条

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