Wildfire carbon emission factor adaptive correction method and system

By constructing a fire point radiation power time evolution curve and an adaptive emission factor correction method, the problem of phase misjudgment in wildfire carbon emission accounting was solved, and accurate accounting of wildfire carbon emissions throughout the entire life cycle was achieved, improving the accuracy and stability of the accounting.

CN122415113APending Publication Date: 2026-07-17NAT SATELLITE METEOROLOGICAL CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT SATELLITE METEOROLOGICAL CENT
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies, when calculating wildfire carbon emissions, fix emission factors and ignore the dynamic evolution of combustion phases, leading to an overestimation of carbon dioxide and black soot emissions and an underestimation of carbon monoxide, organic carbon, and methane emissions. Furthermore, the lack of continuous tracking of the temporal evolution of fire point radiation power results in inaccurate calculations.

Method used

By constructing a time evolution curve of fire point radiation power, dynamically tracking fire point radiation power, identifying the incandescent and smoldering phases in real time, adaptively matching emission factors, using the relationship between the ratio coefficient and the preset threshold for phase discrimination, and updating the maximum fire point radiation power value in real time in satellite observation data, the emission factors are adaptively corrected.

Benefits of technology

It improves the species differentiation accuracy and numerical accuracy of wildfire carbon emission accounting, eliminates the interference of geographical environmental differences, ensures the stability and accuracy of carbon emission accounting results, and enhances the accuracy of carbon emissions throughout the entire life cycle.

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Abstract

本发明公开了野火碳排放因子自适应修正方法及系统,涉及遥感监测技术领域,所述方法包括:根据判别出的所述燃烧相态调用对应的排放因子修正策略,当所述燃烧相态为炽燃相时,采用基础排放因子,当所述燃烧相态为阴燃相时,对所述基础排放因子进行自适应修正处理,得到修正后的排放因子;基于所述修正后的排放因子与所述火点辐射功率时间演变曲线在各时段的积分值,累加计算得到所述目标火点全生命周期的碳排放量。本发明能够动态追踪火点辐射功率演变特征、自适应匹配燃烧相态与排放因子关系。
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