CAJ | 학술논문

在全球气候变暖的背景下，冰架系统是监视和预测冰盖稳定性的理想研究区域。然而传统的冰架观测与调查方法只能从某一侧面揭示冰架的运动状态和演化信息，无法预测其未来变化；冰盖模式作为非常有潜力的数值计算方法，成为研究和预测冰盖／冰架演化的热点领域。 Lambert冰川-Amery冰架系统是东南极冰盖最大的冰川系统，对于研究东南极冰盖的物质平衡和冰盖稳定性具有重要意义。使用PISM冰盖模式，对该冰川系统的流动过程进行模拟，得到冰表面流速场数据，并将模拟流速场与实测数据进行对比，发现两者在大部分区域吻合较好，但在冰架前缘处呈现出一些差异。进一步讨论差异可能的来源以及模拟可以改进的地方。
재전구기후변난적배경하，빙가계통시감시화예측빙개은정성적이상연구구역。연이전통적빙가관측여조사방법지능종모일측면게시빙가적운동상태화연화신식，무법예측기미래변화；빙개모식작위비상유잠력적수치계산방법，성위연구화예측빙개／빙가연화적열점영역。 Lambert빙천-Amery빙가계통시동남겁빙개최대적빙천계통，대우연구동남겁빙개적물질평형화빙개은정성구유중요의의。사용PISM빙개모식，대해빙천계통적류동과정진행모의，득도빙표면류속장수거，병장모의류속장여실측수거진행대비，발현량자재대부분구역문합교호，단재빙가전연처정현출일사차이。진일보토론차이가능적래원이급모의가이개진적지방。
In the context of global climate change, the investigation of ice-shelf systems has become critically important to assess ice-sheet stability.Conventional measurement-based approaches to the analysis of ice-sheet motion and evo-lution are limited.However, ice-sheet modeling provides a valuable and effective tool to study the dynamics and e-volution of ice shelves.Here, the Lambert-Amery ice shelf system, the largest glacier system in East Antarctica and an important focus of research into the mass balance and stability of the East Antarctica Ice Sheet, is studied using the PISM ice sheet model.We simulate the surface ice velocity field of this glacier system and compare the model results with actual measurements from remote sensing.The comparison indicates that the model performs well to predict the velocity field across the Amery Ice Shelf.We further discuss the prospect of applying ice sheet modeling to research into the evolution of ice sheets and ice caps.