Iron in the Antarctic sea ice zone and its role in the past and future climate

南极海冰区的铁及其在过去和未来气候中的作用

• 批准号: DP0985361
• 负责人: Prof Delphine Lannuzel
• 金额: $ 20.75万
• 依托单位: University of Tasmania
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2009
• 资助国家: 澳大利亚
• 起止时间: 2009-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0985361
• 关键词: Iron; Antarctic; sea; ice; zone

The Antarctic sea ice environment has remained poorly investigated for decades as it is difficult to access. Recent scientific advances have revealed that melting sea ice may provide a significant amount of the plant micro-nutrient iron to the Southern Ocean. Given that polar waters are iron-deficient and seasonal sea ice affects ~14 million square kilometres of ocean, the importance of iron fertilisation from decaying sea ice and its effect on global climate urgently need to be evaluated. This proposal aims at improving our understanding of Earth's complex system, and will inform future climate change policy in Australia.

数十年来，南极海冰环境一直在研究不足，因为很难进入。 最近的科学进步表明，融化的海冰可能为南大洋提供大量植物微营养铁。 鉴于极性水缺乏铁缺乏，季节性海冰影响了约1400万平方公里的海洋，因此需要评估铁施肥的重要性以及迫切需要评估其对全球气候的影响。该建议旨在提高我们对地球复杂系统的理解，并将为澳大利亚未来的气候变化政策提供信息。