Watanabe Masataka, Oba Akihiro, Saito Yoko, Purevjav Gomboluudev, Gankhuyag Batjargal, Byamba-Ochir Munkhbat, Zamba Batjargal, Shishime Tomohiro
Research and Development Initiative, Chuo University, Tokyo, 1128551, Japan.
Information and Research Institute of Meteorology, Hydrology and Environment, Ulaanbaatar, 15160, Mongolia.
Sci Rep. 2023 Sep 18;13(1):15427. doi: 10.1038/s41598-023-42664-3.
Biennial Update Reports (BURs) are essential requirements from the United Nations Framework Convention on Climate Change (UNFCCC). However, many non-Annex I countries have not submitted these reports due to difficulties in compiling the inventories. We developed a satellite-based method for the top-down inverse estimation of CO emissions using partial-column data in the lower troposphere obtained by the Greenhouse Gases Observing Satellite, adopted to validate the Mongolian 2 BUR (BUR2) for the energy sector in 2018. The estimated CO emissions were only 1.5% higher than those reported in the BUR2; these were also very close (4.2% smaller) to estimates from the Emission Database for Global Atmospheric Research. Mongolia is the first country to introduce an independent inverse estimate in its BUR, thereby increasing scientific transparency. Our method could be applied into other countries and could be incorporated into UNFCCC reporting guidelines, significantly improving global CO emission estimates.
两年期更新报告（BURs）是《联合国气候变化框架公约》（UNFCCC）的基本要求。然而，许多非附件一国家由于编制清单存在困难，尚未提交这些报告。我们开发了一种基于卫星的方法，利用温室气体观测卫星获得的对流层下部的部分柱数据对一氧化碳排放进行自上而下的反演估算，并用于验证2018年蒙古能源部门的第二次两年期更新报告（BUR2）。估算的一氧化碳排放量仅比BUR2报告中的排放量高1.5%；这些排放量也与全球大气研究排放数据库的估算值非常接近（小4.2%）。蒙古是第一个在其两年期更新报告中引入独立反演估算的国家，从而提高了科学透明度。我们的方法可以应用于其他国家，并可纳入《联合国气候变化框架公约》报告指南，显著改进全球一氧化碳排放估算。
