Mapping high-resolution carbon emission spatial distribution combined with carbon satellite and muti-source data
Carbon satellites, as the most direct means of observing carbon dioxide globally, offer credible and scientifically robust methods for estimating carbon emissions. To enhance the accuracy and timeliness of urban-scale carbon emission estimates, this study proposes an innovative model that integrates...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
8 September 2025
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| In: |
Remote sensing
Year: 2025, Jahrgang: 17, Heft: 17, Pages: 1-20 |
| ISSN: | 2072-4292 |
| DOI: | 10.3390/rs17173125 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.3390/rs17173125 Verlag, kostenfrei, Volltext: https://www.mdpi.com/2072-4292/17/17/3125 
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| Verfasserangaben: | Liu Cui, Hui Yang, Maria Martin, Yina Qiao, Veit Ulrich and Alexander Zipf |
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| 520 | |a Carbon satellites, as the most direct means of observing carbon dioxide globally, offer credible and scientifically robust methods for estimating carbon emissions. To enhance the accuracy and timeliness of urban-scale carbon emission estimates, this study proposes an innovative model that integrates top-down carbon satellite data with high-resolution spatial proxies, including points of interest, road networks, and population distribution. The K-means clustering method was employed to study the relationship between carbon emissions and XCO2 anomalies. Based on this, the local adaptive carbon emission estimation model was constructed. Further, by integrating the spatial distribution and weights of proxy data, carbon emissions were reallocated to generate a high-resolution urban carbon emission map at a 1 km × 1 km resolution. Taking Urumqi, the XCO2 background concentration ranged from approximately 408 ppm to 415 ppm in 2020, and the corresponding ∆XCO2 ranged from −1.58 ppm to 1.13 ppm. The total carbon emission estimated by the local adaptive model amounted to approximately 58.26718 million tons in 2020, close to the EDGAR dataset, with most monthly relative error within ±10%. The Pearson correlation coefficient between the ODIAC dataset and spatially redistributed carbon emission was 0.192, and their comparison showed that high carbon emission areas in the spatially redistributed carbon emission aligned closely with urban industrial parks and commercial centers, offering a more detailed representation of urban carbon emission spatial characteristics. This method contributed to exploring the potential of carbon satellites for quantitatively measuring anthropogenic emissions and offers improved insights into monitoring urban-scale carbon dioxide emissions. | ||
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