Abstract
Dome A, the highest dome of East Antarctic Ice Sheet, is being an area focused by international Antarctic community after Chinese Antarctic Expedition finally reached there in 2005, and with the ongoing International Polar Year (IPY) during August 2007. In this paper two data processing methods are used together to generate two 100-m cell size digital elevation models (DEMs) of the Dome A region (Dome A-DEM) by using Cokriging method to interpolate the ICESat GLAS data, with Ihde-DEM as a constraint. It provides fundamental data to glaciological and geophysical investigation in this area. The Dome A-DEM was applied to determining the ice-sheet surface elevations and coordinates of the south and north summits, defining boundaries of basins and ice flowlines, deducing subglacial topography, and mapping surface slope and aspect in Dome A region. The DEM shows there are two (north and south) summits in Dome A region. The coordinate and the surface elevation of the highest point (the north summit) are 80°21′29.86″S, 77°21′50.29″E and 4092.71±1.43m, respectively. The ice thickness and sub-ice bedrock elevation at north summit are 2420m and 1672m, respectively. Dome A region contains four drainage basins that meet together near the south summit. Ice flowlines, slope and aspect in detail are also derived using the DEM.
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References
Bamber J L, Bindschadler R A, 1997. An improved elevation dataset for climate and ice-sheet modeling: validation with satellite imagery. Annals of Glaciology, 25: 439–444.
BEDMAP, 2001. A new ice thickness and subglacial topographic model of the Antarctic. http://www.antarctica.ac.uk/bedmap/.
Fan Chunbo, Li Jiancheng, Wang Dan et al., 2005. Applications of ICESat to geoscience research. Journal of Geodesy and Geodynamics, 25(2): 94–97. (in Chinese)
Herzfeld U C, 2004. Atlas of Antarctica: Topographic Maps from Geostatistical Analysis of Satellite Radar Altimeter Data. New York, Tokyo: Springer Verlag Heidelberg, 1–364.
Herzfeld U C, Stosius R, Schneider M, 2000. Geostatistical methods for mapping Antarctic ice surfaces at continental and regional scales. Annals of Glaciology, 30: 76–82.
Hu Mingcheng, 1996. Rapidly developing satellite radar altimeter technology—Also commenting on the publishing of Principle of Satellite Altimeter. Acta Geodaetica et Cartographica Sinica, 25(3): 239–240. (in Chinese)
Kang Jiancheng, Wang Dali, 1997. 330km glaciological expedition from Zhongshan station to inland of Antarctic ice sheet. Chinese Journal of Polar Research, 9(3): 238–242. (in Chinese)
Liu H, Jezek K C, Li B, 1999. Development of an Antarctic digital elevation model by integrating cartographic and remotely sensed data: A geographic information system based approach. Journal of Geophysical Research, 104(B10): 23199–23213.
Liu Hongxing, 1999. Development of an Antarctic Digital Elevation Model. Athens: Byrd Polar Research Center, the Ohio University.
Lythe M B, Vaughan D G, BEDMAP Consortium, 2001. BEDMAP: A new ice thickness and subglacial topographic model of Antarctica. Journal of Geophysical Research, 106(B6): 11335–11351.
Qin Dahe, Ren Jiawen, 2001. Antarctic Glaciology. Beijing: Science Press. (in Chinese)
Ren Jiawen, Qin Dahe, Xiao Cunde, 2001. Preliminary results of the inland expeditions along a transect from the Zhongshan Station to Dome A, East Antarctica. Journal of Glaciology and Geocryology, 23(1): 51–56. (in Chinese)
Robin G de Q, Boulton G S, Budd W F et al., 1983. The Climatic Record in Polar Ice Sheets. Cambridge: Cambridge University Press.
Tang Guo’an, Liu Xuejun, Lv Guonian, 2005. Principle and Method of DEM and Geoscience Analysis. Beijing: Science Press. (in Chinese)
Vaughan D G, Bamber J L, Giovinetto M et al., 1999. Reassessment of net surface mass balance in Antarctica. Journal of Climate, 12: 993–946.
Wang Weili, Zwally H J, Abdalati W et al., 2002. Modeling of ice flow and internal layers along a flowline through Swiss Camp, West Greenland. Annals of Glaciology, 34: 303–308.
Wen Hanjiang, Cheng Pengfei, 2005. Introduction to principle of ICESat/GLAS laser altimetry and its applications. Science of Surveying and Mapping, 30(5): 33–35. (in Chinese)
Wen Jiahong, Sun Bo, Kang Jiansheng et al., 2003. A preliminary application GIS in glaciological research along the traverse route from Zhongshan Station to Dome A, Antarctica. Chinese Journal of Polar Science, 15(1): 24–23.
Wen Jiahong, Sun Bo, Li Yuansheng et al., 2004. Mass balance research of Antarctic ice sheet: progress and prospection. Chinese Journal of Polar Science, 16(2): 114–126. (in Chinese)
Zwally H J, Schutz B, Abdalati W et al., 2002. ICESat’s laser measurements of polar ice, atmosphere, ocean, and land. Journal of Geodynamics, 34: 405–445.
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Foundation item: Under the auspices of the National Natural Science Foundation of China (No. 40471028, No. 40476005) and Shanghai Shu Guang Project (No. 05SG46)
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Liu, J., Wen, J., Wang, Y. et al. Development and applications of dome A-DEM in Antarctic Ice Sheet. Chin. Geograph.Sc. 17, 160–165 (2007). https://doi.org/10.1007/s11769-007-0160-4
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DOI: https://doi.org/10.1007/s11769-007-0160-4