干旱区生态环境知识资源中心(Arid): Preliminary Selection and Characterization of Pseudo-Invariant Calibration Sites in Northwest China

Arid

DOI	10.3390/rs12162517
	Preliminary Selection and Characterization of Pseudo-Invariant Calibration Sites in Northwest China
	Hu, Xiuqing; Wang, Ling; Wang, Junwei; He, Lingli; Chen, Lin; Xu, Na; Tao, Bingcheng; Zhang, Lu; Zhang, Peng; Lu, Naimeng
通讯作者	Wang, L
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2020
卷号	12 期号:16
英文摘要	Pseudo-invariant calibration sites (PICS) have been used for the radiometric calibration and stability monitoring of satellite optical sensors. Several stable PICS, such as those in the Sahara Desert in North Africa, were selected for the vicarious calibration of earth remote sensing satellites. However, the selection procedure of PICSs in the whole of Northwest China has not been fully explored before. This paper presents a novel technique for selecting PICS in Northwest China by combined using the coefficient of variation (CV) and the iteratively reweighted multivariate alteration detection (IR-MAD) technique. IR-MAD, which calculates the differences between two multispectral N-band images from the same scene acquired at different times, is used to identify no-change pixels (NCPs) of the scene through one image pair. The NCPs from IR-MAD using the long-term data of FY-3 visible infrared radiometer (VIRR) and aqua Moderate Resolution Imaging Spectroradiometer (MODIS) were aggregated into the contiguously stable sites. The traditional spatial uniformity and temporal stability from MODIS surface products were used to select the potential PICS. By combining the results of both methods, over thirty PICSs with a wider brightness range of the scene types were selected. To confirm and characterize these PICSs over Northwest China, Landsat operational land imager (OLI) high-spatial-resolution images were used to check the spatial uniformity of the selected site to determine the specific location and the size of these sites. Additionally, the surface spectral reflectance and bidirectional reflectance distribution function (BRDF) were obtained from the field campaign at Chaidamu Basin, 2018. To demonstrate the practical utilization and usability of these PICSs, they were employed in the multi-site top of atmosphere (TOA) reflectance simulation to validate the operational calibration performance of Aqua/MODIS and FY-3D/MERSI-II (Medium Resolution Spectral Imager II). The simulation results showed good consistency compared with the observations from both MODIS and MERSI-II, with a relative bias and root mean square error (RMSE) of <5% and <0.05%, respectively. These sites provide prospects for multi-site vicarious calibrations of solar reflective bands, which may help to evaluate or characterize instrumental nonlinear responses using a wider signal dynamic from the sites in different seasons.
英文关键词	pseudo-invariant calibration site coefficient of variation IR-MAD vicarious calibration Northwest China
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000565441100001
WOS关键词	RADIOMETRIC CROSS-CALIBRATION ; ABSOLUTE CALIBRATION ; TUZ GOLU ; SENSOR ; DEGRADATION ; MAD ; REFLECTANCE ; CHANNELS ; PLUS
WOS类目	Remote Sensing
WOS研究方向	Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325988
作者单位	[Hu, Xiuqing; Wang, Ling; He, Lingli; Chen, Lin; Xu, Na; Tao, Bingcheng; Zhang, Lu; Zhang, Peng; Lu, Naimeng] China Meteorol Adm, Key Lab Radiometr Calibrat & Validat Environm Sat, Beijing 100081, Peoples R China; [Hu, Xiuqing; Wang, Ling; He, Lingli; Chen, Lin; Xu, Na; Tao, Bingcheng; Zhang, Lu; Zhang, Peng; Lu, Naimeng] China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing 100081, Peoples R China; [Wang, Junwei] Beijing Inst Technol, Sch Opt & Photon, Beijing 100081, Peoples R China; [Tao, Bingcheng] Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo 454003, Henan, Peoples R China
推荐引用方式 GB/T 7714	Hu, Xiuqing,Wang, Ling,Wang, Junwei,et al. Preliminary Selection and Characterization of Pseudo-Invariant Calibration Sites in Northwest China[J],2020,12(16).
APA	Hu, Xiuqing.,Wang, Ling.,Wang, Junwei.,He, Lingli.,Chen, Lin.,...&Lu, Naimeng.(2020).Preliminary Selection and Characterization of Pseudo-Invariant Calibration Sites in Northwest China.REMOTE SENSING,12(16).
MLA	Hu, Xiuqing,et al."Preliminary Selection and Characterization of Pseudo-Invariant Calibration Sites in Northwest China".REMOTE SENSING 12.16(2020).