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中国农学通报 ›› 2019, Vol. 35 ›› Issue (10): 142-147.doi: 10.11924/j.issn.1000-6850.casb18120100

• 农业科技信息 • 上一篇    下一篇

基于Landsat8遥感影像的地表温度反演方法对比研究

侯宇初, 张冬有   

  1. 哈尔滨师范大学地理科学学院,哈尔滨师范大学寒区地理环境监测与空间信息服务黑龙江省重点实验室
  • 收稿日期:2018-12-24 修回日期:2019-01-21 接受日期:2019-01-25 出版日期:2019-04-03 发布日期:2019-04-03
  • 通讯作者: 张冬有
  • 基金资助:
    国家自然科学基金项目“大兴安岭森林生物量与多年冻土退化响应关系研究”(41671064)。

Comparison Study on Land Surface Temperature Retrieval Algorithms Based on Landsat 8 Remote Sensing Image

侯宇初   

  • Received:2018-12-24 Revised:2019-01-21 Accepted:2019-01-25 Online:2019-04-03 Published:2019-04-03

摘要: 随着数据的自由共享,Landsat8系列卫星的遥感数据已经成为地表温度反演的重要数据之一。本文基于Landsat8数据的地表温度反演算法,选择大兴安岭地区漠河市作为研究区域。采用基于Landsat8热红外波段的辐射传输模型法、单窗方法、劈窗算法等不同方法对地表温度进行反演,探究高纬度地区地表温度分布规律,并运用野外实测地温数据进行验证。结果表明:针对本研究区的3种地表温度反演的拟合效果都较好,温度误差在1℃左右,其中辐射传输方程法所得结果精度更高,可为高纬度地区夏季地表温度反演与冻土退化等研究提供一定的参考价值。

关键词: 春小麦, 春小麦, 全膜覆土穴播, 播期, 生长发育

Abstract: With the free sharing of data, remote sensing data of Landsat 8 satellite series has become one of the important data of surface temperature inversion. Based on the land surface temperature inversion algorithm of Landsat8 data, this paper selected Mohe City in Daxing''anling area as the research area. Inversion of surface temperature by different methods based on Landsat8 thermal infrared band, such as radioactive transfer equation algorithm, mono-window algorithm, and split-window algorithm. Exploring the law of surface temperature distribution in high latitudes, and use measured geothermal data for verification. The result presents that the fitting effects of the three surface temperature inversions in this study area are good, and the temperature error is around 1°C.Among them, the result of the radiation transfer equation algorithm is more accurate, it can provide some reference value for summer surface temperature inversion and frozen soil degradation in high latitude areas.