大气与环境光学学报 ›› 2025, Vol. 20 ›› Issue (5): 637-651.doi: 10.3969/j.issn.1673-6141.2025.05.007

• 光学遥感 • 上一篇    下一篇

基于高分五号的地表温度反演方法与应用

贾志扬 1,2,3, 张文豪 1,2,3*, 占玉林 4, 张丽丽 5, 付雅帅 1,2,3, 马宇 1,2,3, 邴芳飞 1,2,3   

  1. 1 北华航天工业学院遥感信息工程学院, 河北 廊坊 065000; 2 河北省航天遥感信息处理与应用协同创新中心, 河北 廊坊 065000; 3 北华航天工业学院遥感应用研究所, 河北 廊坊 065000; 4 中国科学院空天信息创新研究院遥感卫星应用国家工程实验室, 北京 100094; 5 中科空间信息 (廊坊) 研究院, 河北 廊坊 065001
  • 收稿日期:2022-12-14 修回日期:2023-02-21 出版日期:2025-09-28 发布日期:2025-09-24
  • 通讯作者: E-mail: zhangwh@radi.ac.cn E-mail:zhangwh@radi.ac.cn
  • 作者简介:贾志扬 (1999- ), 河北唐山人, 硕士研究生, 主要从事地表温度反演方面的研究。E-mail: jzy92641@163.com
  • 基金资助:
    高分辨率对地观测系统重大专项 (30-Y30F06-9003-20/22), 国家自然科学基金 (41907192), 国家科技重大专项 (67-Y50G04-9001-22/23), 河北省自然科学基金 (D2020409003, D2022103002), 河北省高等学校科学技术研究项目 (ZD2021303), 河北省全职引进高端人才科研项 目 (2020HBQZYC002), 北华航天工业学院博士科研启动基金 (BKY-2021-31), 2023 年省级在读研究生创新能力培养资助项目 (CXZZSS2023166), 北华航天工业学院研究生创新资助项目 (YKY-2022-54)

Surface temperature retrieval methods and applications based on Chinese Gaofen-5 satellite

JIA Zhiyang 1,2,3, ZHANG Wenhao 1,2,3*, ZHAN Yulin 4, ZHANG Lili 5, FU Yashuai 1,2,3, MA Yu 1,2,3, BING Fangfei 1,2,3   

  1. 1 School of Remote Sensing and Information Engineering, North China Institute of Aerospace Engineering, Langfang 065000, China; 2 Heibei Space Remote Sensing Information Processing and Application of Collaborative Innovation Center, Langfang 065000, China; 3 Institute of Remote Sensing Applications, North China Institute of Aerospace Engineering, Langfang 065000, China; 4 National Engineering Laboratory for Satellite Remote Sensing Applications, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China; 5 Zhongke Langfang Institute of Spatial Information Applications, Langfang 065001, China
  • Received:2022-12-14 Revised:2023-02-21 Online:2025-09-28 Published:2025-09-24
  • Supported by:
    China High Resolution Earth Observation Project;National Natural Science Foundation of China;Natural Science Foundation of Hebei Province;Science and Technology Research Projects of Higher Education Institutions in Hebei Province;Civil Aerospace pre-research project;National Key R&D Program of China;National Natural Science Foundation of China;Doctoral research start-up fund of North China Institute of Aerospace Engineering;Graduate Student Innovation Grant Program of North China Institute of Aerospace Engineering

摘要: 地表温度是城市环境监测、地热异常勘探、全球气候变化等研究中的重要参量。高分五号 (GF-5) 卫星的全谱 段光谱成像仪在热红外波段具有40 m的高空间分辨率成像能力, 能够提供精细的地表温度空间分布和变化信息。本 文采用双通道和四通道两种劈窗算法对GF-5 数据进行反演得到天津市2019 年3 月的地表温度, 并通过同一时间的高 级星载热发射和反射辐射仪 (ASTER) 地表温度产品对反演结果进行精度评价。结果表明, 双通道劈窗算法的地表温 度最优均方根误差为1.19 K, 四通道劈窗算法的地表温度均方根误差为2.31 K, 不同通道组合的对比结果表明双通道 劈窗算法B9/B10 组合反演精度最高。此外,为验证GF-5 高分辨率热红外数据在热岛效应监测方面的应用能力, 针对 鸭淀水库区域开展了GF-5 与ASTER地表温度结果和热岛效应对比分析, 结果表明GF-5 的高分辨率地表温度数据能 够在城市热环境监测及城市规划中发挥重要作用。

关键词: 高分五号, 热红外, 地表温度, 劈窗算法, 城市热岛效应

Abstract: Surface temperature is a crucial parameter in the studies of urban environmental monitoring, geothermal anomalies, global climate change, and other topics. The full-spectrum spectral imager on board Gaofen-5 (GF-5) satellite has a high spatial resolution imaging capability of 40 m in the thermal infrared band, which can offer detailed information on the spatial distribution and variation of surface temperature. In this paper, two split-window algorithms, two-channel and four-channel, are used to invert GF-5 data to obtain the surface temperature of Tianjin, China, in March 2019, and the accuracy of the inversion results is evaluated using ASTER surface temperature product at the same time. The results show that the optimal root-mean-square error of the two-channel split-window algorithm for surface temperature is 1.19 K, while that of the four-channel split-window algorithm is 2.31 K. And the comparison of different channel combinations shows that the B9/B10 combination of the two-channel split-window algorithm has the highest inversion accuracy. In addition, to verify the application capability of GF-5 high-resolution thermal infrared data in monitoring the heat island effect, a comparative analysis of GF-5 and ASTER surface temperature and heat island effect is conducted in the region surrounding Yadian Reservoir of Tianjin. The results show that the high-resolution surface temperature data of GF-5 can play an important role in urban thermal environment monitoring and urban planning.

Key words: Gaofen-5, thermal infrared, land surface temperature, split-window algorithm, urban heat island effect

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