FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View

Wu, Ruizhi; Zhang, Peng; Xu, Na; Hu, Xiuqing; Lin, Chunye; Zhang, Lu; Yang, Zhiyong

doi:10.3390/s20174690

Cited by 20 publications

(5 citation statements)

References 28 publications

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“…The results from the lunar calibration compared with the prelaunch coefficient are listed in Figure 12 and Table 10. As lunar calibration is also a well-developed technique in reflective solar bands, Wu proposed an absolute radiometric calibration method based on FY-3D/MERSI-II lunar observation data [7]. The results from the lunar calibration compared with the prelaunch coefficient are listed in Figure 12 and Table 10.…”

Section: Comparison Of Calibration Coefficientsmentioning

confidence: 99%

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Vicarious Radiometric Calibration of Ocean Color Bands for FY-3D/MERSI-II at Lake Qinghai, China

Chen

Zheng

et al. 2020

Sensors

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To calibrate the low signal response of the ocean color (OC) bands and test the stability of the Fengyun-3D (FY-3D)/Medium Resolution Spectral Imager II (MERSI-II), an absolute radiometric calibration field test of FY-3D/MERSI-II at the Lake Qinghai Radiometric Calibration Site (RCS) was carried out in August 2018. The lake surface and atmospheric parameters were mainly measured by advanced observation instruments, and the MODerate spectral resolution atmospheric TRANsmittance algorithm and computer model (MODTRAN4.0) was used to simulate the multiple scattering radiance value at the altitude of the sensor. The results showed that the relative deviations between bands 9 and 12 are within 5.0%, while the relative deviations of bands 8, and 13 are 17.1%, and 12.0%, respectively. The precision of the calibration method was verified by calibrating the Aqua/Moderate-resolution Imaging Spectroradiometer (MODIS) and National Polar-orbiting Partnership (NPP)/Visible Infrared Imaging Radiometer (VIIRS), and the deviation of the calibration results was evaluated with the results of the Dunhuang RCS calibration and lunar calibration. The results showed that the relative deviations of NPP/VIIRS were within 7.0%, and the relative deviations of Aqua/MODIS were within 4.1% from 400 nm to 600 nm. The comparisons of three on-orbit calibration methods indicated that band 8 exhibited a large attenuation after launch and the calibration results had good consistency at the other bands except for band 13. The uncertainty value of the whole calibration system was approximately 6.3%, and the uncertainty brought by the field surface measurement reached 5.4%, which might be the main reason for the relatively large deviation of band 13. This study verifies the feasibility of the vicarious calibration method at the Lake Qinghai RCS and provides the basis and reference for the subsequent on-orbit calibration of FY-3D/MERSI-II.

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Section: Comparison Of Calibration Coefficientsmentioning

confidence: 99%

“…Wu et al proposed an absolute radiometric calibration method based on FY-3D/MERSI-II lunar observation data. Meteorological satellites such as FY-3D are equipped with ocean color (OC) sensors [ 7 ]. However, no relevant research has conducted a separate surface vicarious radiometric calibration for the OC bands.…”

Section: Introductionmentioning

confidence: 99%

Vicarious Radiometric Calibration of Ocean Color Bands for FY-3D/MERSI-II at Lake Qinghai, China

Chen

Zheng

et al. 2020

Sensors

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“…At present, a range of sophisticated satellite systems and instruments from various countries play a crucial role in this field. These include the Hyperion, MODIS (Moderate Resolution Imaging Spectroradiometer) [10], Hyperion [11], GOES (Geostationary Operational Environmental Satellites) [12], SeaWiFS [13,14], S-NPP (Suomi National Polar-orbiting Partnership) [15] from the USA, Hodoyoshi-1 [16], and the FY meteorological satellite [17] from the USA, as well as Japan's microsatellite Hodoyoshi-1 and China's meteorological satellite series Fengyun. These satellite systems have executed observational experiments on the Moon employing a variety of payloads.…”

Section: Introductionmentioning

confidence: 99%

“…The approach of using the Moon as a reference point for satellite calibration has sparked considerable research attention [5][6][7][8][9]. At present, many satellites, inclusive of MODIS (Moderate Resolution Imaging Spectroradiometer) [10], Hyperion [11], GOES (Geostationary Operational Environmental Satellites) [12], SeaWiFS [13,14], S-NPP (Suomi National Polar-orbiting Partnership) [15] from the USA, Japan's Hodoyoshi-1 microsatellite [16], and China's Fengyun series of meteorological satellites [17], along with others, have carried out moon observation experiments employing diverse payloads. This international assortment of advanced satellite systems and instruments underscores the progression of global satellite technology and its role in environmental monitoring.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of the Lunar Spectral Irradiances and the Earth-Based Moon Observation Geometry

Lian¹,

Renyang²,

Tang³

et al. 2023

Preprint

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As a radiant light source within the dynamic range of most spacecraft payloads, the moon pro-vides an excellent reference for on-orbit radiometric calibration. This research hinges on the pre-cise simulation of lunar spectral irradiances and the Earth-based Moon observation geometry. The paper leverages the Hapke model to simulate the temporal changes in lunar spectral irradi-ances, utilizing datasets obtained from Lunar Reconnaissance Orbiter Camera (LROC). The re-search also details the transformation process from the lunar geographic coordinate system to the instantaneous projection coordinate system, thereby delineating the necessary observational geometry. The insights offered by this study have the potential to enhance future in-orbit space-craft calibration procedures, thereby boosting the fidelity of data gathered from satellite obser-vations.

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“…Opportunities for Earth-orbiting satellites to see the Moon are not costly; the Moon is sometimes observed by geosynchronous satellites in cold-space corners [26], LEO satellites can view the Moon periodically by arranging attitude maneuvers [27,28], and flagship satellites usually refrain from frequent large-angle maneuvers, but the Moon can appear unscheduled in the field of view (FOV) of satellites set up with a space-view port [29][30][31]. Such events can be predicted by spatial relations [32].…”

Section: Introductionmentioning

confidence: 99%

Activities to Promote the Moon as an Absolute Calibration Reference

Jing

Wang

et al. 2023

Remote Sensing

Self Cite

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The accuracy and consistency of Earth observation (EO) instrument radiometric calibration is a fundamental prerequisite for achieving accurate results and delivering reliable predictions. Frequent calibration and validation (Cal/Val) activities are needed during the instrument’s lifetime, and this procedure is often extended to historical archives. Numerous satellites in orbit and proposed future missions have incorporated lunar observation into their vicarious calibration components over recent years, facilitated by the extreme long-term photometric stability of the Moon. Since the birth of the first lunar calibration reference model, lunar-dependent calibration techniques have developed rapidly, and the application and refinement of the lunar radiometric model have become a welcome research focus in the calibration community. Within the context of the development of lunar observation activities and calibration systems globally, we provide a comprehensive review of the activities and results spawned by treating the Moon as a reference for instrument response and categorize them against the understanding of lunar radiometric reference. In general, this appears to be a process of moving from data to instruments, then back into data, working towards a stated goal. Here we highlight lunar radiometric models developed by different institutions or agencies over the last two decades while reporting on the known limitations of these solutions, with unresolved challenges remaining and multiple lunar observation plans and concepts attempting to address them from various perspectives, presenting a temporal development. We also observe that the methods seeking uncertainty reduction at this stage are rather homogeneous, lacking the combination of approaches or results from lunar surface studies conducted by many spacecraft missions, and joint deep learning methods to extract information. The factors that influence the accuracy of the measurement irradiance may be regulated when practical models arrive. As a central element in lunar calibration, the development of an absolute radiometric datum helps to better understand the Earth system.

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FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View

Cited by 20 publications

References 28 publications

Vicarious Radiometric Calibration of Ocean Color Bands for FY-3D/MERSI-II at Lake Qinghai, China

Vicarious Radiometric Calibration of Ocean Color Bands for FY-3D/MERSI-II at Lake Qinghai, China

Simulation Study of the Lunar Spectral Irradiances and the Earth-Based Moon Observation Geometry

Activities to Promote the Moon as an Absolute Calibration Reference

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