A new understanding of Antarctic ice melting

对南极冰川融化的新认识

• 批准号: DE140100089
• 负责人: A/Prof Bishakhdatta Gayen
• 金额: $ 25.93万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2014
• 资助国家: 澳大利亚
• 起止时间: 2014-03-01 至 2017-10-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE140100089
• 关键词: new; understanding; Antarctic; ice; melting

Melting of grounded ice in the Antarctic may play a key role in future global sea level rise and Earth's climate system. Ocean-ice interactions governing the rate of melting are not well understood and limited data leads to large uncertainties in the predictions of future melting rates. This project will undertake the first direct numerical simulations examining the complex dynamics of melting of ice-shelves in the presence of convection and turbulence, while translating the results to improve ocean models. By calculating the sensitivity of melting rate to surrounding ocean conditions, the project will develop the knowledge required to better predict future melting rates.

南极地面冰的融化可能在未来全球海平面上升和地球气候系统中发挥关键作用。海洋与冰之间的相互作用对融化速度的影响还没有得到很好的理解，有限的数据导致对未来融化速度的预测存在很大的不确定性。该项目将进行第一次直接数值模拟，研究在存在对流和湍流的情况下冰架融化的复杂动态，同时将结果转化为改进海洋模型。通过计算融化率对周围海洋条件的敏感性，该项目将发展更好地预测未来融化率所需的知识。