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Country-level methane emissions and their sectoral trends during 2009–2020 estimated by high-resolution inversion of GOSAT and surface observationsстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Janardanan Rajesh, Maksyutov Shamil, Wang Fenjuan, Nayagam Lorna, Sahu Saroj Kumar, Mangaraj Poonam, Saunois Marielle, Lan Xin, Matsunaga Tsuneo
- Журнал: Environmental Research Letters
- Том: 19
- Номер: 3
- Год издания: 2024
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Номер статьи: 034007
- DOI: 10.1088/1748-9326/ad2436
- Аннотация: used a high-resolution global methane inverse model to independently optimize sectoral emissions using GOSAT and ground-based observations for 2009–2020. Annual emission trends were calculated for top-emitting countries, and the sectoral contributions to the total anthropogenic trend were studied. Global total posterior emissions show a growth rate of 2.6 Tg yr−2 (p < 0.05),with significant contributions from waste (1.1 Tg yr−2) and agriculture (0.9 Tg yr−2). Country-level aggregated sectoral emissions showed statistically significant (p < 0.1) trends in total posterior emissions for China (0.56 Tg yr−2), India (0.22 Tg yr−2), United States (0.65 Tg yr−2),Pakistan (0.22 Tg yr−2) and Indonesia (0.28 Tg yr−2) among the top methane emitters. Emission sectors contributing to the above country-level emission trend are, China (waste 0.35; oil and gas 0.07 Tg yr−2), India (agriculture 0.09; waste 0.11 Tg yr−2), United States (oil and gas 1.0; agriculture 0.07; coal −0.15 Tg yr−2), Brazil (waste 0.09; agriculture 0.08 Tg yr−2), Russia (waste 0.04; biomass burning 0.15; coal 0.11; oil and gas −0.42 Tg yr−2), Indonesia (coal 0.28 Tg yr−2), Canada (oil and gas 0.08 Tg yr−2), Pakistan (agriculture 0.15; waste 0.03 Tg yr−2) and Mexico (waste 0.04 Tg yr−2). Additionally, our analysis showed that methane emissions from wetlands inRussia (0.24 Tg yr−2) and central African countries such as Congo (0.09 Tg yr−2), etc. have a positive trend with a considerably large increase after 2017, whereas Bolivia (−0.09 Tg yr−2) have a declining trend. Our results reveal some key emission sectors to be targeted on a national level for designing methane emission mitigation efforts.
- Добавил в систему: Mаксютов Шамиль Шавратович