Bayesian inversion and computation applied to atmospheric flux fields

贝叶斯反演和计算应用于大气通量场

• 批准号: DP190100180
• 负责人: Prof Noel Cressie
• 金额: $ 35.46万
• 依托单位: University of Wollongong
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-06-17 至 2023-10-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190100180
• 关键词: Bayesian; inversion; computation; applied; atmospheric

This project aims to make use of unprecedented sources of measurements, from remote sensing and in situ data, to estimate the sources and sinks of greenhouse gases. An overabundance of greenhouse gases in Earth's atmosphere is arguably the most serious long-term threat to the planet's ecosystems. This project will combine measurement uncertainties, process uncertainties in the physical transport models, and any parameter uncertainties, to provide reliable uncertainty quantification for the estimates. This will be achieved with new Bayesian spatio-temporal inversions and big-data computational strategies. The resulting statistical inferences on greenhouse-gas flux fields will enable the development of critical mitigation strategies. These new statistical inferences will be a valuable resource to policy-makers worldwide, who are assessing progress towards global commitments. Further, the final product may assist in developing cost-effective mitigation strategies in the presence of uncertainty.

该项目的目的是利用前所未有的遥感和现场数据测量来源，估计温室气体的源和汇。地球大气中过多的温室气体可以说是对地球生态系统最严重的长期威胁。该项目将结合联合收割机的测量不确定性，物理传输模型中的过程不确定性，以及任何参数的不确定性，为估计提供可靠的不确定性量化。这将通过新的贝叶斯时空反演和大数据计算策略来实现。由此产生的温室气体通量场的统计推断将使关键的缓解战略的发展。这些新的统计推断将是全世界决策者评估全球承诺进展情况的宝贵资源。此外，最终产品可能有助于在存在不确定性的情况下制定具有成本效益的缓解战略。