Influence of Temperature Inertia on Thermal Radiation Directionality Modeling Based on Geometric Optical Model | |
Lu, Xiangyang1,2,3; Tang, Bo-Hui1,2,4; Li, Zhao-Liang1,3,5; Rasmussen, Mads Olander6 | |
刊名 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING |
2020-05-01 | |
卷号 | 58期号:5页码:3445-3457 |
关键词 | Geometric optical (GO) model hotspot land surface temperature (LST) temperature inertia (TI) thermal radiation directionality |
ISSN号 | 0196-2892 |
DOI | 10.1109/TGRS.2019.2956258 |
通讯作者 | Tang, Bo-Hui(tangbh@igsnrr.ac.cn) ; Li, Zhao-Liang(lizhaoliang@caas.cn) |
英文摘要 | Different from bidirectional reflectance, temperature variation takes some time with the change of illumination. However, previous thermal radiation directionality (TRD) models have less considered the influence of this temperature inertia (TI) effect. By using the concept of conversion component, this article proposed an improved geometric optical (GO) model, called MGP_TI model. This model considers the TI effect by further dividing the background component into the continuously sunlit, continuously shaded, converted from sunlit to shaded, and converted from shaded to sunlit backgrounds. Upon combining with in situ measurements and a comprehensive simulated data set of component temperatures and prescribing three levels of TI and six observation times, the TI influence on TRD modeling was comprehensively analyzed. Results indicated that: 1) the overall absolute and relative greatest influence were 0.34 degrees C and 6.9%, respectively, suggesting that the TI influence on the value of TRD was less significant compared with the land surface temperature (LST) retrieval accuracy and the TRD extent; 2) the TI would weaken TRD on the direction of sun motion, whereas it enhanced the TRD on the opposition direction, and the primary influence was enhancing first and then weakening during the period from 10:30 to 15:30, which were determined by the differences in conversion component fractions; and 3) the TI effect could also result in the delay of the hotspot, and the occurrence and degree of the delay were influenced by the TI strength, local solar time and temperature differences of sunlit/shaded components. |
资助项目 | National Key Research and Development Program of China[2016YFA0600103] ; National Natural Science Foundation of China[41571353] ; National Natural Science Foundation of China[41871244] ; Innovation Project of LREIS[O88RA801YA] ; China Scholarship Council |
WOS关键词 | LAND-SURFACE TEMPERATURE ; KERNEL-DRIVEN MODEL ; BIDIRECTIONAL REFLECTANCE ; BRIGHTNESS TEMPERATURE ; EMISSIVITY ; CANOPY ; ANISOTROPY ; RETRIEVAL ; SIMULATE ; PRODUCT |
WOS研究方向 | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
语种 | 英语 |
出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
WOS记录号 | WOS:000529868700036 |
资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Innovation Project of LREIS ; China Scholarship Council |
内容类型 | 期刊论文 |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/159904] |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Tang, Bo-Hui; Li, Zhao-Liang |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.CNRS, UdS, ICube, Illkirch Graffenstaden 67412, France 4.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China 5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Agriinformat, Minist Agr, Beijing 100081, Peoples R China 6.DHI GRAS AS, Horsholm 2970, Denmark |
推荐引用方式 GB/T 7714 | Lu, Xiangyang,Tang, Bo-Hui,Li, Zhao-Liang,et al. Influence of Temperature Inertia on Thermal Radiation Directionality Modeling Based on Geometric Optical Model[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2020,58(5):3445-3457. |
APA | Lu, Xiangyang,Tang, Bo-Hui,Li, Zhao-Liang,&Rasmussen, Mads Olander.(2020).Influence of Temperature Inertia on Thermal Radiation Directionality Modeling Based on Geometric Optical Model.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,58(5),3445-3457. |
MLA | Lu, Xiangyang,et al."Influence of Temperature Inertia on Thermal Radiation Directionality Modeling Based on Geometric Optical Model".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 58.5(2020):3445-3457. |
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