Climate Warming in West Antarctica

南极半岛和西南极是气候变化的重点地区。由于未来几十年到几个世纪这一地区的融化可能会导致海平面上升几米，该地区的气候轨迹显然具有全球意义。如果表层或海洋底部融化成为表面物质平衡的一个重要组成部分，它可能会导致边缘冰架的减弱，从而导致目前流入南大洋的搁浅冰流显著加速。因此，更好地了解南极洲西部的气候变暖具有强大的科学和社会合理性。该项目将结合现有的人工和自动气象站的温度记录、卫星数据、ERA中期再分析，以及最近(~200)年的冰芯(钻孔)数据提供的视角，重建到WRF模型中，以生成整个西南极冰盖(WAIS)的高分辨率(10公里)地表温度历史。这将有助于解决最近在WAIS地区变暖程度上的分歧。此外，还将调查有无卫星记录对气候重建的影响的气候重建的比较。

The Antarctic Peninsula and West Antarctica are focus areas for climate change. With up to several meters of sea level rise potentially resulting from melting of this region in the coming decades to centuries, the climate trajectory of this region is clearly of global relevance. If surface, or ocean basal melting becomes a significant component of the surface mass balance, it could contribute to the weakening of fringing ice shelves with a resulting marked acceleration of currently grounded ice stream discharging into the Southern Ocean. Thus, better understanding of the climate warming in West Antarctica has strong scientific and societal justification.The project will combine existing temperature records from manned and automatic weather stations, satellite data, ERA interim reanalysis, and the perspective provided by recent (~200) yr ice core (borehole) data reconstructed into the WRF model to yield high resolution (10km) surface temperature history throughout the West Antarctic Ice sheet (WAIS). This will help resolve recent disagreement on the extent of warming in the WAIS region. Additional comparisons of the climate reconstructions with and without the influences of satellite records on the reconstructions will also be investigated.