Near-real-time global gridded daily CO2 emissions

作者：Xinyu Dou, Zhu Liu, Philippe Ciais, Jinpyo Hong, Frédéric Chevallier, Yilong Wang, Feifan Yan, Steven J. Davis, Monica Crippa, Greet Janssens‐Maenhout, Diego Guizzardi, Efisio Solazzo, Xuanren Song, Da Huo, Piyu Ke, Hengqi Wang, Zhu Deng · 年份：2023 · DOI：10.5194/egusphere-egu23-3303 · 被引用次数：7 · 研究领域：Atmospheric and Environmental Gas Dynamics、Air Quality and Health Impacts、Air Quality Monitoring and Forecasting

Timely, fine-grained gridded carbon emission datasets are particularly important for global climate change research. Often, fine-grained datasets are challenging to visualize over the globe, and clear visualization tools are also needed. Therefore, we present a near-real-time global gridded daily CO2 emissions dataset (GRACED). GRACED provides gridded CO2 emissions at a 0.1° × 0.1° spatial resolution and 1-day temporal resolution from cement production and fossil fuel combustion over seven sectors, including power, industry, residential consumption, ground transportation, domestic aviation, international aviation, and international shipping. GRACED is prepared from the near-real-time daily national CO2 emissions estimates (Carbon Monitor), multi-source spatial activity data and satellite NO2 data for time variations of those spatial activity data. Here, we examined the spatial patterns of sectoral CO2 emission changes from January 1, 2019, to December 31, 2021. In 2021, most regions showed rapid rebounds in carbon emissions compared with 2020, reflecting the continuing challenges to accelerate climate mitigation in the post-COVID era. GRACED provides the most timely and more refined overview than any other previously published datasets, which enables more accurate and timely identification of when and where fossil CO2 emissions have rebounded and decreased as the world recovers from COVID-19 and witnesses contrasted efforts to decarbonize energy sys...