从太空追踪二氧化碳减排:以欧洲最大的化石燃料发电厂为例

R. Nassar, O. Moeini, John Mastrogiacomo, C. O’Dell, R. Nelson, M. Kiel, A. Chatterjee, A. Eldering, D. Crisp
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引用次数: 16

摘要

我们利用美国宇航局轨道碳观测站(OCO) 2号和3号任务在2017年3月至2022年6月期间的10次二氧化碳观测数据,量化了欧洲最大的化石燃料发电厂——波兰Bełchatόw发电站的二氧化碳排放量。天基二氧化碳排放估计数揭示的排放变化趋势与独立报告的每小时发电趋势相一致,这种趋势是由永久和临时机组关闭造成的。OCO-2和OCO-3在其各自的1σ不确定性范围内的10次估算中有9次与自下而上的估算一致。为了更好地理解这一重要的潜在误差贡献,探讨了定义背景值和相应不确定性的不同方法。这些结果表明,在有足够的覆盖范围和回访的情况下,现有的天基二氧化碳观测能够量化大型设施的减排。这些结果有助于了解计划中的哥白尼人为二氧化碳监测卫星(CO2M)和其他未来卫星的预期能力和潜在局限性,以支持监测和核查《巴黎协定》等减缓气候变化努力所产生的二氧化碳减排。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Tracking CO2 emission reductions from space: A case study at Europe’s largest fossil fuel power plant
We quantify CO2 emissions from Europe’s largest fossil fuel power plant, the Bełchatόw Power Station in Poland, using CO2 observations from NASA’s Orbiting Carbon Observatory (OCO) 2 and 3 missions on 10 occasions from March 2017 to June 2022. The space-based CO2 emission estimates reveal emission changes with a trend that is consistent with the independent reported hourly power generation trend that results from both permanent and temporary unit shutdowns. OCO-2 and OCO-3 emission estimates agree with the bottom-up emission estimates within their respective 1σ uncertainties for 9 of the 10 occasions. Different methods for defining background values and corresponding uncertainties are explored in order to better understand this important potential error contribution. These results demonstrate the ability of existing space-based CO2 observations to quantify emission reductions for a large facility when adequate coverage and revisits are available. The results are informative for understanding the expected capability and potential limitations of the planned Copernicus Anthropogenic CO2 Monitoring (CO2M) and other future satellites to support monitoring and verification of CO2 emission reductions resulting from climate change mitigation efforts such as the Paris Agreement.
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