基于风云卫星等多源数据融合的金沙江上游雪盖重建

张俊; 曾小玥; 万君; 柳晶辉

doi:10.3799/dqkx.2026.164

Volume 51 Issue 6

Jun. 2026

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Article Navigation > Earth Science > 2026 > 51(6): 2418-2432

Zhang Jun, Zeng Xiaoyue, Wan Jun, Liu Jinghui, 2026. Snow Cover Reconstruction via Multisource Data Fusion Using Fengyun Satellites in Upper Jinsha River Basin. Earth Science, 51(6): 2418-2432. doi: 10.3799/dqkx.2026.164

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Zhang Jun, Zeng Xiaoyue, Wan Jun, Liu Jinghui, 2026. Snow Cover Reconstruction via Multisource Data Fusion Using Fengyun Satellites in Upper Jinsha River Basin. Earth Science, 51(6): 2418-2432. doi: 10.3799/dqkx.2026.164

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Snow Cover Reconstruction via Multisource Data Fusion Using Fengyun Satellites in Upper Jinsha River Basin

doi: 10.3799/dqkx.2026.164

Zhang Jun^{1
,
,},
Zeng Xiaoyue^{2
,
,},
Wan Jun²,
Liu Jinghui²

1.
China Yangtze Power Co., Ltd., Yichang, 443000, China
2.
Hubei Climate Center, Wuhan 430074, China

Received Date: 2025-11-10
Available Online: 2026-07-17
Publish Date: 2026-06-25

Abstract

Abstract

To address the issue of missing data in snow cover products caused by cloud contamination in remote sensing imagery, this study proposes a snow cover reconstruction method based on the fusion of multisource data, including Fengyun satellite observations. A seven-step cloud removal process was employed to achieve daily, accurate, cloud-free snow cover monitoring in the upper Jinsha River basin. The results indicate that the reconstructed snow cover product attains an overall accuracy of 0.94 and a Kappa coefficient of 0.80, outperforming the widely used IMS product from the United States. However, the overall accuracy slightly declines within snow transition zones at altitudes of approximately 4.3 km and 5.6 km, and it varies according to slope aspect. Moreover, the precision of the reconstructed product in forested areas is considerably lower (0.18) than in other land cover types. Future enhancements to the reconstruction method should incorporate slope aspect and forest-specific characteristics to improve the accuracy of multisource fused, cloud-free snow cover products.
- Fengyun satellite,
- snow cover reconstruction,
- multisource fusion,
- gap filling,
- upper Jinsha River basin,
- remote sensing

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References(57)

References

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