Climate Warming in West Antarctica

南极半岛和南极洲西部是气候变化的重点地区。在未来几十年到几个世纪里，该地区的融化可能导致海平面上升几米，因此，该地区的气候轨迹显然具有全球相关性。如果地表或海洋基底融化成为地表质量平衡的一个重要组成部分，它可能有助于削弱边缘冰架，从而导致目前搁浅的冰流明显加速流入南大洋。因此，更好地了解南极洲西部的气候变暖具有强有力的科学和社会依据。该项目将结合来自载人和自动气象站的现有温度记录、卫星数据、ERA中期再分析，以及最近（~200年）冰芯（钻孔）数据提供的视角，重建到WRF模型中，以获得整个南极西部冰盖（WAIS）的高分辨率（10公里）地表温度历史。这将有助于解决最近关于西海地区变暖程度的分歧。还将进一步研究有无卫星记录影响的气候重建结果的比较。

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.