Investigation on surface mass balance on the Antarctic ice sheet and its influences to sea level rise -snow surface roughness measurements and snow surface elevation measurements-

利用安装在雪车和雪橇上的三维加速度计测量了南极冰盖从海岸到富士圆顶站(距海岸1000公里)的雪面粗糙度。我们利用这些数据阐明了沿导线路线的雪面粗糙度特征。从2008年到2012年，我们还在圆顶富士站的36根桩农场进行了雪桩测量。我们发现，富士圆顶自2008年以来的年度地表物质平衡(ASMB)数据表明，ASMB的年变化比1995-2007年的数据更大。利用2003年11月14日日全食期间的气象资料，研究了太阳辐射变化对冰盖气温的影响。我们发现了太阳辐射骤增引起的气温和雪温变化的特征。

Snow surface roughness from coast area to Dome Fuji Station (1000km inland form the coast) on the Antarctic ice sheet was investigated using 3Daccelerometers mounted in snow vehicle and on snow sledge. We clarify the characteristics of snow surface roughness along the traverse route using the data. We also carried our snow stake measurements at 36-stake farm at Dome Fuji Station from 2008 to 2012. Weclarify that the annual surface mass balance (ASMB) at Dome Fuji since 2008 has atendency that annual variation of ASMB becomes large compared to the data from 1995 to2007. We also investigate the influence of solar radiation changes to air temperature on the ice sheet using the meteorological data during the total solar eclipse at November 14, 2003. We found the characteristics of the air and snow temperature variations caused by suddendecrease of solar radiation.