The Norwegian Arctic archipelago of Svalbard is located in the most rapidly warming area of the Arctic, at the interface of Arctic and Atlantic air and ocean masses. The presence of a large number of surge‐type glaciers and the potential for rapid changes in surface mass balance and ice dynamics necessitates regularly updated mass balance assessment. This study uses swath processing of CryoSat‐2 SARIn mode data to obtain glacier elevations for 2011–2017. Individual elevation estimates are collected into 1‐km² grid cells, and a least squares plane‐fitting technique is used to calculate rates of elevation change, with residuals being used to reveal the temporal pattern. A 7‐year rate of mass change of −16.0 ± 3.0 Gt a⁻¹ is estimated (equivalent to 0.044 mm a⁻¹ of global sea level rise), of which −11.0 Gt a⁻¹ results from the melt and dynamic thinning of nonsurging ice and −5.0 Gt a⁻¹ results from surges. This compares to ‐3.4 Gt a⁻¹ previously estimated using ice, cloud, and land elevation satellite (ICESat) (2003–2008). The west coast remains a major contributor to mass loss from nonsurging ice in the archipelago, with mass loss increasing from areas bordering the Barents Sea. Sea ice concentration and climate reanalysis data sets show ocean and lower atmospheric warming and sea ice decline in this region, likely contributing to enhanced glacier melt and discharge.

中文翻译：

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斯瓦尔巴德冰川的质量损失向CryoSat-2揭示的巴伦支海域的扩散

挪威斯瓦尔巴群岛的北极群岛位于北极最迅速变暖的地区，处于北极与大西洋的空气和海洋团块的交界处。大量涌浪型冰川的存在，以及地表质量平衡和冰动力学快速变化的潜力，需要定期更新质量平衡评估。这项研究使用CryoSat-2 SARIn模式数据的条带处理来获得2011-2017年的冰川高程。各个海拔估计值收集到1 km ^2的网格单元中，并且使用最小二乘平面拟合技术来计算海拔变化率，并使用残差来揭示时间模式。A 7年期利率的质量变化的- 16.0  ±  3.0亿吨一个^-1估计（相当于0.044毫米^-1全球海平面上升的），其中- 11.0亿吨一个^-1的结果从所述熔化并nonsurging冰的动态变薄和- 5.0亿吨一个^-1从浪涌结果。与此相比，以前使用冰，云和陆地高程卫星（ICESat）（2003-2008）估算的结果为-3.4 Gt a ^-1。西海岸仍然是造成群岛冰层不滑行而造成质量损失的主要因素，而与巴伦支海接壤的地区的质量损失也在增加。海冰浓度和气候再分析数据集显示，该地区海洋和较低的大气变暖以及海冰下降，可能有助于冰川融化和排放。