Seasonal Dependence of Topographic Effect on Mountainous Land Surface Temperature Retrieval: Insights From Landsat-8 Data
文献类型：期刊论文
| 作者 | He, Zhi-Wei2,3,4; Tang, Bo-Hui1,2,3,4; Zhu, Xin-Ming2,3,4; Li, Zhao-Liang5,6 |
| 刊名 | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
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| 出版日期 | 2026 |
| 卷号 | 19页码:4545-4558 |
| 关键词 | Land surface temperature Surface topography Land surface Remote sensing Surface treatment Temperature distribution Temperature sensors Laboratories Spatial resolution Solar radiation Landsat-8 data mountainous land surface temperature (MLST) seasonal dependence topographic effect |
| ISSN号 | 1939-1404 |
| DOI | 10.1109/JSTARS.2026.3651291 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Land surface temperature (LST) is a key parameter for characterizing land-atmosphere interactions, energy balance, and ecological processes. Previous studies have incorporated topographic effects in mountainous LST (MLST) retrieval, yet systematic quantification of the seasonal magnitude of these effects remains lacking. In this study, Landsat-8 thermal infrared data are employed from the sensor's observational perspective, and representative images for spring, summer, autumn, and winter are selected across the Tibet Plateau, enabling the determination of seasonal topographic effects (Delta LST), where Delta LST refers to the difference between LST retrieved without and with consideration of topographic effects. Results indicate that Delta LST is primarily controlled by topographic factors, including small-scale self-heating parameters (SSP), sky view factor (SVF), and land surface emissivity (LSE). Among the seasons, topographic effect is most pronounced in summer, with Delta LST exceeding 8 K in rugged areas with low emissivity. Delta LST exhibits clear dependence on slope and aspect, with south-facing slopes generally higher than north-facing slopes, and increasing with slope steepness, indicating that steep slopes are more sensitive to solar radiation. Further analysis reveals that Delta LST is positively correlated with SSP, and negatively correlated with SVF and LSE, with the strongest correlations observed in summer, suggesting that topographic radiation imbalance is the dominant mechanism controlling MLST variability. Note that when SSP is close to 1.0, SVF is close to 0.0, and LSE is close to 1.0, Delta LST is minimal, and topographic effects on LST can be neglected. Overall, the seasonal pattern of Delta LST follows the order: summer > autumn approximate to spring > winter, and a recent increasing trend in Delta LST implies enhanced thermal responses in mountainous regions under climate warming. These findings improve understanding of topographic influences on MLST retrieval and provide more reliable LST data for studies of energy balance, evapotranspiration, and ecological processes. |
| URL标识 | 查看原文 |
| WOS关键词 | LONGWAVE RADIATION ; TERRAIN ; MODEL |
| WOS研究方向 | Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:001673755500008 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220930]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Tang, Bo-Hui |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Yunnan Int Joint Lab Integrated Sky Ground Intelli, Kunming 650093, Peoples R China; 3.Yunnan Key Lab Quantitat Remote Sensing, Kunming 650093, Peoples R China; 4.Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Peoples R China; 5.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 6.Chinese Acad Agr Sci, Key Lab Agr Remote Sensing, Minist Agr & Rural Affairs, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China; |
| 推荐引用方式 GB/T 7714 | He, Zhi-Wei,Tang, Bo-Hui,Zhu, Xin-Ming,et al. Seasonal Dependence of Topographic Effect on Mountainous Land Surface Temperature Retrieval: Insights From Landsat-8 Data[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2026,19:4545-4558. |
| APA | He, Zhi-Wei,Tang, Bo-Hui,Zhu, Xin-Ming,&Li, Zhao-Liang.(2026).Seasonal Dependence of Topographic Effect on Mountainous Land Surface Temperature Retrieval: Insights From Landsat-8 Data.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,19,4545-4558. |
| MLA | He, Zhi-Wei,et al."Seasonal Dependence of Topographic Effect on Mountainous Land Surface Temperature Retrieval: Insights From Landsat-8 Data".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 19(2026):4545-4558. |
入库方式： OAI收割
来源：地理科学与资源研究所
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