Programme for Monitoring of the Greenland Ice Sheet (PROMICE): first temperature and ablation record
Programme for Monitoring of the Greenland Ice Sheet (PROMICE): first temperature and ablation record
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格陵兰冰盖监测计划（PROMICE）：第一个温度和消融记录
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
S. Hanson
中科院分区：
文献类型：
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作者：
M. Citterio;A. Ahlstrøm;S. Andersen;M. L. Andersen;D. As;J. M. Boncori;René Forsberg;S. Kristensen;Jørgen Dall;S. Larsen;L. Stenseng;D. Petersen;E. Christensen;R. Fausto;S. Hanson
格陵兰冰盖正在对气候变化做出反应。然而，大规模预算估计差异很大，部分原因是气候变化，部分原因是评估大规模变化技术的不确定性（IPCC 2007）。然而，所有最近的估计都同意冰盖正在加速失去质量（例如 286 Gt/年；Velicogna 2009）（Rignot 等人，2011）。除此之外，质量预算为负的区域正在迅速扩大（Khan et al. 2010）。质量损失同样归因于冰山生产和冰盖融化的增加（Van den Broeke 等，2009）。近年来不断增加的质量损失引起了公众的关注，并因其对海平面的潜在影响而引起全世界的关注。鉴于此，格陵兰冰盖监测计划 (PROMICE) 于 2007 年启动（Ahlstrom & PROMICE 项目组 2008 年），由丹麦和格陵兰地质调查局 (GEUS) 牵头。 PROMICE 使用自动气象站进行地表质量预算测量，使用卫星和机载勘测的遥感数据量化冰山崩解造成的质量损失，并跟踪冰川范围的变化。在本文中，我们重点关注气象站测量，这对于计算大气和冰盖之间的能量交换以及验证表面质量预算的模型计算至关重要。我们特别介绍了观测到的气温，并研究了 2010 年的高气温如何影响格陵兰岛南部的消融。
The Greenland ice sheet is reacting to climate change. Yet, mass-budget estimates differ considerably, partly due to climatic variability and partly to uncertainties in the techniques of assessing mass change (IPCC 2007). Nevertheless, all recent estimates agree that the ice sheet is losing mass (e.g. 286 Gt/yr; Velicogna 2009) at an accelerating rate (Rignot et al. 2011). On top of this, the area with a negative mass budget is expanding rapidly (Khan et al. 2010). The mass loss is attributed equally to increases in both iceberg production and melting of the ice sheet (Van den Broeke et al. 2009). The increasing mass loss in recent years has caught public attention and given rise to concern worldwide due to its potential impact on sea level. In the light of this, the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) was initiated in 2007 (Ahlstrom & PROMICE project team 2008), lead by the Geological Survey of Denmark and Greenland (GEUS). PROMICE undertakes surface mass-budget measurements using automatic weather stations, quantifies the mass loss by iceberg calving using remotely sensed data from satellites and airborne surveys and tracks changes in the extent of glaciers. In this paper, we focus on weather station measurements, which are crucial in calculating the energy exchange between the atmosphere and the ice sheet, and in validating model calculations of the surface mass budget. In particular, we present the observed temperatures and investigate how their high 2010 values affected ablation in southern Greenland.