Ice velocity from static GPS observations along the transect from Zhongshan station to Dome A, East Antarctica
Ice velocity from static GPS observations along the transect from Zhongshan station to Dome A, East Antarctica
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沿南极洲中山站至 Dome A 断面静态 GPS 观测得到的冰速度
DOI：
10.3189/172756408784700716
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发表时间：
2008
影响因子：
2.9
通讯作者：
LI Yuansheng
中科院分区：
文献类型：
--
作者：
JIN Bo;WANG Zemin;E Dongchen;ZHANG Shengkai;ZHOU Chunxia;LI Yuansheng
摘要冰穹A是南极冰盖的最高点，海拔4000 ma.s.l.，位于东南极洲中心附近。1996/97年至2004/05年，中国国家南极科学考察队在南极夏季对中山站至冰穹A沿线的冰盖动力学和物质平衡进行了沿着研究。19个全球定位系统站点至少有两次被占用，间隔约为50公里。调查的目的是提供准确的冰动力学数据。使用了双频全球定位系统接收器，每个地点占用1至12小时。GPS数据采用GAMIT/GLOBK软件进行处理，水平精度在0.1 m以内。重复GPS测量提供了冰的速度。水平表面冰速度从冰盖的顶部到海岸增加。在Dome A地区，流速<10 ma-1，在高原地区，流速在8 ~ 24 ma-1之间，在靠近海岸的一个站点（LT 980），流速达到98.2ma-1左右。流动方向大致垂直于冰盖表面海拔等高线，主要朝向兰伯特冰川盆地。
Abstract Dome A, the highest point on the Antarctic ice sheet at just over 4000 ma.s.l., is located near the centre of East Antarctica. Chinese National Antarctic Research Expeditions have studied ice-sheet dynamics and mass balance along a traverse route from Zhongshan station to Dome A during the austral summers from 1996/97 to 2004/05. Nineteen GPS sites were occupied on at least two occasions at approximately 50 km intervals. The purpose of the surveys was to provide accurate ice-dynamics data. A dual-frequency GPS receiver was used and each site was occupied for 1–12 hours. GPS data were processed using GAMIT/GLOBK software, and horizontal accuracies were within 0.1 m. Repeat GPS measurements provided ice velocities. The horizontal surface ice velocities increase from the summit of the ice sheet to the coast. In the Dome A area, the velocities are <10ma–1; in the plateau area, velocities range from 8 to 24 ma–1 and reach about 98.2 ma–1 at a site (LT980) near the coast. The flow directions are roughly perpendicular to the ice-sheet surface elevation contours, primarily toward the Lambert Glacier basin.
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DOI：
10.1016/0306-4522(96)00348-x
发表时间：
1893-10
期刊：
The Indian Medical Gazette
影响因子：
--
作者：
M. M. Syddiq-M.
通讯作者：
M. M. Syddiq-M.
南极洲 Dome A 山顶周围的地表地形，来自实时运动 GPS
影响因子：
3.4
作者：
Zhang Shengkai;E Dongchen;Wang Zemin;Shen Qiang;Zhou Chunxia
通讯作者：
Zhou Chunxia
DOI：
10.2307/1551118
发表时间：
1981-01
期刊：
Arctic and alpine research
影响因子：
--
作者：
R. Armstrong;W. Paterson
通讯作者：
R. Armstrong;W. Paterson
影响因子：
4.9
作者：
Matt A. King;L. N. Nguyen;R. Coleman;P. Morgan
通讯作者：
Matt A. King;L. N. Nguyen;R. Coleman;P. Morgan
影响因子：
2.9
作者：
A. Capra;R. Cefalo;S. Gandolfi;G. Manzoni;I. Tabacco;L. Vittuari
通讯作者：
A. Capra;R. Cefalo;S. Gandolfi;G. Manzoni;I. Tabacco;L. Vittuari