XIE Surui, LI Fei, ZHAO Jiechen, ZHANG Shengkai. Estimation of  Sea  Ice  Thickness at  Zhongshan Station  in Antarctica Based on a Combination of GPS and Tide Observations[J]. Geomatics and Information Science of Wuhan University, 2014, 39(10): 1153-1157.
Citation: XIE Surui, LI Fei, ZHAO Jiechen, ZHANG Shengkai. Estimation of  Sea  Ice  Thickness at  Zhongshan Station  in Antarctica Based on a Combination of GPS and Tide Observations[J]. Geomatics and Information Science of Wuhan University, 2014, 39(10): 1153-1157.

Estimation of  Sea  Ice  Thickness at  Zhongshan Station  in Antarctica Based on a Combination of GPS and Tide Observations

  • Due to  the  tidal  effectsea  ice  in Polar Regions moves verticall y alon g with the  sea  level.The elevation  of  the  sea  ices upper  surface  can be detected by a GPS receiverand sea  level  can be measured by tide  observations.Thereuponif  we can provide  the  thickness  of  the  snow cover  over  the sea  iceand the densities of  snow and sea  icethenaccording to  the princi ple  of  hydrostatic balance thickness  of  the  sea  ice  can be derived by a combination of  the GPS and tide  observations.The experiment conducted by the  28th Chinese National Antarctic Expedition at  Zhongshan Station  in Antarctica during September  222012to November 9indicates that  the  sea  ice  thickness  can be  estimated  in  centimeterlevel  accurac y by this  app roach.Compares  to  the measurements made by drillin g holesthe maximum difference  is  8.9centimetersthe  root mean square of  the  different  values  is  5.4centimeters.
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