ASTER数据地表温度产品精度评价

干旱气象 ›› 2019, Vol. 37 ›› Issue (6): 987-992.

ASTER数据地表温度产品精度评价

余卫国1，房世波1，齐月2，陈金华3

1.中国气象科学研究院生态环境与农业气象研究所,北京100081;
2.中国气象局兰州干旱气象研究所，甘肃省干旱气候变化与减灾重点实验室，
中国气象局干旱气候变化与减灾重点实验室，甘肃兰州730020；
3.安徽省农业气象中心，安徽合肥230031

出版日期:2019-12-31 发布日期:2020-01-02
通讯作者: 齐月（1988— ）,女,山东章丘人,助理研究员,硕士,主要从事生态与农业气象遥感研究. E-mail: goodqiyue@163.com。
作者简介:余卫国（1989— ）,男,安徽合肥人,助理研究员,硕士,主要从事生态与农业气象遥感研究. E-mail: yuweiguo1314@163.com。

Data Precision Evaluation of Land Surface Temperature Product Derived from ASTER Data

YU Weiguo1, FANG Shibo1, QI Yue2, CHEN Jinhua3

1. Institute of Eco-environment and Agro-meteorology, Chinese Academy of Meteorological Sciences,
Beijing 100081 China; 2. Institute of Arid Meteorology, China Meteorological Administration,
Gansu Key Laboratory of Arid Climatic Change and Reducing Disaster, Key Laboratory
of Arid Climatic Change and Disaster Reduction of CMA, Lanzhou 730020, China；
3. Anhui Agro-meteorological Center，Hefei 230031,China

Online:2019-12-31 Published:2020-01-02

摘要/Abstract

摘要： 以北京市为研究区，基于ASTER热红外波段数据反演的地表温度及地面气象站地表温度，利用绝对误差和相对误差开展了精度验证研究，分析了地表温度空间分布。结果表明： ASTER数据反演的夜间地表温度在热岛强度高的冬季精度高于其他热岛效应弱的季节，而ASTER数据反演的白天地表温度在热岛强度高的夏季与其他热岛效应弱的季节精度相当； ASTER数据反演的地表温度小于气象站地表温度观测值。ASTER数据反演的地表温度与气象站观测地表温度空间分布一致，且夜间冬季的热岛强度高于秋季，白天夏季的热岛强度高于秋季；夜间的热岛强度高于白天。

关键词: 地表温度, ASTER, 热红外, 精度评价, 绝对误差, 相对误差, 空间分布

Abstract: Taking Beijing as the research area,this paper used surface temperature retrieval based on ASTER (advanced spaceborne thermal emission and reflection radiometer)thermal infrared data and observed surface temperature at meteorological stations. Accuracy verification of surface temperature retrieval based on ASTER data was carried out using absolute error and relative error, and its spatial distribution was analyzed. The results show that the accuracy surface temperature retrieval during nighttime in winter with high urban heat island intensity based on ASTER data was higher than that in other seasons with weak urban heat island intensity, while in the daytime in summer with high urban heat island intensity based on ASTER was similar to that in other seasons with weak urban heat island intensity, and the surface temperature retrieval based on ASTER data was smaller than observations at meteorological station. The spatial distribution of surface temperature retrieval based on ASTER data was consistent with that of observed surface temperature, and urban heat island intensity during nighttime in winter was higher than that in autumn.Urban heat island intensity during daytime in summer was higher than that in autumn, and during nighttime it was higher than that in the daytime.

Key words: surface temperature, ASTER, thermal infrared, accuracy assessment, absolute error, relative error, spatial distribution

中图分类号:

P237

余卫国, 房世波, 齐月, 陈金华. ASTER数据地表温度产品精度评价[J]. 干旱气象, 2019, 37(6): 987-992.

YU Weiguo, FANG Shibo, QI Yue, CHEN Jinhua. Data Precision Evaluation of Land Surface Temperature Product Derived from ASTER Data[J]. Journal of Arid Meteorology, 2019, 37(6): 987-992.

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