Sci-Tech

Satellite remote sensing for precise monitoring of carbon emissions from coal-fired power plants

2025-06-23   

Reporters learned from the Aerospace Information Innovation Institute of the Chinese Academy of Sciences (hereinafter referred to as the Academy) on the 20th that researchers from the Academy have made important progress in carbon emission monitoring research of coal-fired power plants. They successfully quantified the carbon dioxide emissions of large coal-fired power plants using satellite remote sensing data. The relevant research results were published online in the top journal in the field of environmental science, Clean Production. Coal fired power plants are the world's largest single source of carbon emissions, accounting for approximately 50% of the total carbon emissions from fossil fuel combustion worldwide. They are a key point in estimating carbon emissions from human activities. Therefore, accurately understanding the carbon emissions of coal-fired power plants is crucial for global carbon accounting and emissions reduction in the power industry. However, traditional measurement methods mainly rely on coal consumption estimates reported by power plants themselves. This method not only fails to reflect the actual emission differences between different power plants and regions, but also lacks unified international standards, making it difficult to compare and verify the results, "said Shi Yusheng, the corresponding author of the paper and a researcher at the Institute of Aerospace Science and Technology. To address these issues, researchers have developed an innovative analysis method based on data from the US Orbital Carbon Observatory Satellite 3 (OCO-3). They first optimized the algorithm to more accurately identify and eliminate atmospheric background interference; Secondly, dynamic wind direction correction technology has been developed to make the path of carbon dioxide "smoke bands" captured by satellites more accurate; Finally, a new model was constructed that can more accurately and dynamically simulate the process of smoke rising and diffusing in the atmosphere. This method successfully quantified the daily emissions of 14 large coal-fired power plants worldwide, and the monitoring accuracy was significantly improved. Shi Yusheng stated that this study provides an objective and reliable new technological means for global verification of key carbon emission sources, which helps to discover the problem of illegal emissions and leakage, and provides a scientific basis for carbon market trading regulation and emission reduction policy adjustment. This will help China and the world to more accurately grasp the carbon emissions situation, formulate more effective emission reduction strategies, and provide key scientific data support for clarifying the global carbon cycle process and mechanism, and achieving accurate global carbon inventory. (New Society)

Edit:Chen Meilin Responsible editor:Liang Shuang

Source:stdaily.com

Special statement: if the pictures and texts reproduced or quoted on this site infringe your legitimate rights and interests, please contact this site, and this site will correct and delete them in time. For copyright issues and website cooperation, please contact through outlook new era email:lwxsd@liaowanghn.com

Recommended Reading Change it

Links