Photometric Modeling and Correction of the JiLin-1 Lunar Observations Using the Hapke Model

IF 4.7 2区地球科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Pub Date : 2025-03-24 DOI:10.1109/JSTARS.2025.3554240

Tian-Yi Xu;Min Shu;Yunzhao Wu

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引用次数: 0

Abstract

The PMS2 spectral imager onboard JiLin-1 (JL-1) satellite conducted extensive lunar observations, capturing images of the Moon across multiple spectral bands ranging from 415 to 1012 nm, spanning a wide range of lunar phases over an extended period. Photometric modeling plays a key role in deriving the physical and photometric properties of the lunar surface, with photometric calibration serving as a critical step in enhancing data quality for subsequent analyses. In this study, the PMS2 data are used for disk-integrated photometric modeling across these bands with the Hapke model. We analyze the wavelength dependence of photometric parameters and assess the effectiveness of photometric correction. Our study reveals a linear relationship between the amplitude of the opposition effect and wavelength, and gives the functional relationship between the other parameters and wavelength. Notably, we identified for the first time a peak in backscattering near 650 nm for the lunar surface. In addition, we demonstrate that the model parameters derived from a disk-integrated approach provide accurate results when applied to disk-resolved photometric calibration.

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基于Hapke模型的吉林一号月球观测的光度模拟与校正

吉林一号（JL-1）卫星上的PMS2光谱成像仪进行了广泛的月球观测，在415到1012纳米的多个光谱波段上捕获了月球的图像，跨越了很长一段时间的大范围月相。光度建模在推导月球表面的物理和光度特性方面起着关键作用，光度校准是提高后续分析数据质量的关键步骤。在本研究中，PMS2数据被用于通过Hapke模型在这些波段上进行磁盘集成光度模拟。我们分析了光度参数的波长依赖性，并评估了光度校正的有效性。我们的研究揭示了对立效应的幅值与波长之间的线性关系，并给出了其他参数与波长之间的函数关系。值得注意的是，我们首次发现了月球表面650纳米附近的后向散射峰值。此外，我们证明了从磁盘集成方法中获得的模型参数在应用于磁盘分辨率光度校准时提供了准确的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 地学-成像科学与照相技术

CiteScore

9.30

自引率

10.90%

发文量

563

审稿时长

4.7 months

期刊介绍： The IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing addresses the growing field of applications in Earth observations and remote sensing, and also provides a venue for the rapidly expanding special issues that are being sponsored by the IEEE Geosciences and Remote Sensing Society. The journal draws upon the experience of the highly successful “IEEE Transactions on Geoscience and Remote Sensing” and provide a complementary medium for the wide range of topics in applied earth observations. The ‘Applications’ areas encompasses the societal benefit areas of the Global Earth Observations Systems of Systems (GEOSS) program. Through deliberations over two years, ministers from 50 countries agreed to identify nine areas where Earth observation could positively impact the quality of life and health of their respective countries. Some of these are areas not traditionally addressed in the IEEE context. These include biodiversity, health and climate. Yet it is the skill sets of IEEE members, in areas such as observations, communications, computers, signal processing, standards and ocean engineering, that form the technical underpinnings of GEOSS. Thus, the Journal attracts a broad range of interests that serves both present members in new ways and expands the IEEE visibility into new areas.