用土地覆盖信息提升异戊二烯排放的卫星分辨率
Leveraging Land Cover Priors for Isoprene Emission Super-Resolution
- 用土地覆盖数据作先验,训练深度学习模型增强排放图分辨率
- 在复杂地貌区,分辨率提升显著,相关性分析验证了有效性
- 适合做大气化学、气候建模和空气质量预测的研究者使用
遥感在监测地球生态系统中至关重要,但卫星数据常因空间分辨率有限而难以用于大气建模与气候研究。本文提出一种基于深度学习的超分辨率(SR)框架,利用土地覆盖信息作为排放驱动因子,提升生物源挥发性有机物(BVOCs)排放的空间精度,重点关注异戊二烯。该方法将土地覆盖先验融入模型,比传统方法更有效捕捉空间分布特征。我们在多种气候条件下评估模型性能,并分析异戊二烯排放与耕地、林地覆盖等环境信息的统计关联。此外,通过在未见过的气候区和地理区域测试,验证了模型的泛化能力。实验表明,引入土地覆盖数据能显著提高排放超分辨率的准确性,尤其在异质景观中表现突出。本研究为大气化学与气候建模提供了一种低成本、数据驱动的排放地图优化方法,提升了卫星排放数据的可用性,支持空气质量预报、气候影响评估与环境研究。
原文摘要 · Abstract (English)
Remote sensing plays a crucial role in monitoring Earth's ecosystems, yet satellite-derived data often suffer from limited spatial resolution, restricting their applicability in atmospheric modeling and climate research. In this work, we propose a deep learning-based Super-Resolution (SR) framework that leverages land cover information to enhance the spatial accuracy of Biogenic Volatile Organic Compounds (BVOCs) emissions, with a particular focus on isoprene. Our approach integrates land cover priors as emission drivers, capturing spatial patterns more effectively than traditional methods. We evaluate the model's performance across various climate conditions and analyze statistical correlations between isoprene emissions and key environmental information such as cropland and tree cover data. Additionally, we assess the generalization capabilities of our SR model by applying it to unseen climate zones and geographical regions. Experimental results demonstrate that incorporating land cover data significantly improves emission SR accuracy, particularly in heterogeneous landscapes. This study contributes to atmospheric chemistry and climate modeling by providing a cost-effective, data-driven approach to refining BVOC emission maps. The proposed method enhances the usability of satellite-based emissions data, supporting applications in air quality forecasting, climate impact assessments, and environmental studies.
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