气候变化领域集成服务门户(CCPortal): Retrieval of Plateau Lake Water Surface Temperature from UAV Thermal Infrared Data

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DOI	10.3390/atmos15010099
	Retrieval of Plateau Lake Water Surface Temperature from UAV Thermal Infrared Data
	Sima, Ouyang; Tang, Bo-Hui; He, Zhi-Wei; Wang, Dong; Zhao, Jun-Li
发表日期	2024
EISSN	2073-4433
起始页码	15
结束页码	1
卷号	15 期号:1
英文摘要	The lake water surface temperature (LWST) is a critical parameter influencing lake ecosystem dynamics and addressing challenges posed by climate change. Traditional point measurement techniques exhibit limitations in providing comprehensive LWST data. However, the emergence of satellite remote sensing and unmanned aerial vehicle (UAV) Thermal Infrared (TIR) technology has opened new possibilities. This study presents an approach for retrieving plateau lake LWST (p-LWST) from UAV TIR data. The UAV TIR dataset, obtained from the DJI Zenmuse H20T sensor, was stitched together to form an image of brightness temperature (BT). Atmospheric parameters for atmospheric correction were acquired by combining the UAV dataset with the ERA5 reanalysis data and MODTRAN5.2. Lake Water Surface Emissivity (LWSE) spectral curves were derived using 102 hand-portable FT-IR spectrometer (102F) measurements, along with the sensor's spectral response function, to obtain the corresponding LWSE. Using estimated atmospheric parameters, LWSE, and UAV BT, the un-calibrated LWST was calculated through the TIR radiative transfer model. To validate the LWST retrieval accuracy, the FLIR Infrared Thermal Imager T610 and the Fluke 51-II contact thermometer were utilized to estimate on-point LWST. This on-point data was employed for cross-calibration and verification. In the study area, the p-LWST method retrieved LWST ranging from 288 K to 295 K over Erhai Lake in the plateau region, with a final retrieval accuracy of 0.89 K. Results demonstrate that the proposed p-LWST method is effective for LWST retrieval, offering technical and theoretical support for monitoring climate change in plateau lakes.
英文关键词	unmanned aerial vehicle (UAV); plateau lakes; lake water surface temperature (LWST); lake water surface emissivity (LWSE); radiative transfer model
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001149383400001
来源期刊	ATMOSPHERE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289719
作者单位	Kunming University of Science & Technology; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS
推荐引用方式 GB/T 7714	Sima, Ouyang,Tang, Bo-Hui,He, Zhi-Wei,et al. Retrieval of Plateau Lake Water Surface Temperature from UAV Thermal Infrared Data[J],2024,15(1).
APA	Sima, Ouyang,Tang, Bo-Hui,He, Zhi-Wei,Wang, Dong,&Zhao, Jun-Li.(2024).Retrieval of Plateau Lake Water Surface Temperature from UAV Thermal Infrared Data.ATMOSPHERE,15(1).
MLA	Sima, Ouyang,et al."Retrieval of Plateau Lake Water Surface Temperature from UAV Thermal Infrared Data".ATMOSPHERE 15.1(2024).