S-NPP VIIRS Lunar Calibrations over 10 Years in Reflective Solar Bands (RSB)
Abstract
:1. Introduction
2. On-Orbit Radiometric Calibration Algorithms
2.1. Earth View (EV) Top-of-Atmosphere (TOA) Radiance
2.2. SD Calibration
2.3. SD Degradation Estimation from SDSM
2.4. Lunar Calibration Using Scheduled Lunar Collections
2.4.1. Lunar Irradiance Model
2.4.2. Procedures of Lunar Collection
2.4.3. Lunar Calibration
2.5. SD Non-Uniformity Estimation Using Lunar Observation
3. On-Orbit Calibration Results
3.1. SD Degradation (H-Factor)
3.2. SD F-Factors
3.3. Lunar and SD F-Factors Comparison Results
3.4. Estimated Detector Response Difference using SD and Lunar Collections
3.4.1. Lunar Detector Response Differences
3.4.2. Solar Diffuser Detector Response Differences
3.4.3. Lunar and Solar Diffuser Detector Response Differences
3.5. Applying Lunar and SD Detector Differences to Current Operational VIIRS Products
4. Discussion
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
Disclaimer
References
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Band Name | CW [µm] | Nominal Resolution | Gain States | Ltyp [W/m2 sr µm] |
---|---|---|---|---|
M1 | 0.410 | 750 m | High/Low | 115/44.9 |
M2 | 0.443 | 750 m | High/Low | 146/40 |
M3 | 0.486 | 750 m | High/Low | 123/32 |
M4 | 0.550 | 750 m | High/Low | 90/21 |
I1 | 0.637 | 375 m | Single | 22 |
M5 | 0.671 | 750 m | High/Low | 68/10 |
M6 | 0.745 | 750 m | Single | 9.6 |
I2 # | 0.861 | 375 m | Single | 25 |
M7 # | 0.861 | 750 m | High/Low | 33.4/6.4 |
M8 | 1.238 | 750 m | Single | 5.4 |
M9 | 1.375 | 750 m | Single | 6 |
I3 * | 1.601 | 375 m | Single | 7.3 |
M10 * | 1.601 | 750 m | Single | 7.3 |
M11 | 2.256 | 750 m | Single | 0.12 |
Band | M1 | M2 | M3 | M4 | M5 | M6 | M7 | M8 | M9 | M10 | M11 | I1 | I2 | I3 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
STD% | 0.16 | 0.60 | 0.54 | 0.58 | 0.41 | 1.87 | 0.45 | 1.16 | 0.82 | 0.65 | 0.48 | 1.02 | 0.79 | 0.94 |
SF | 1.020 | 0.970 | 1.031 | 0.992 | 0.988 | 0.913 | 0.936 | 0.882 | 0.915 | 0.960 | 1.064 | 1.037 | 0.977 | 1.064 |
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Choi, T.; Cao, C.; Shao, X.; Wang, W. S-NPP VIIRS Lunar Calibrations over 10 Years in Reflective Solar Bands (RSB). Remote Sens. 2022, 14, 3367. https://doi.org/10.3390/rs14143367
Choi T, Cao C, Shao X, Wang W. S-NPP VIIRS Lunar Calibrations over 10 Years in Reflective Solar Bands (RSB). Remote Sensing. 2022; 14(14):3367. https://doi.org/10.3390/rs14143367
Chicago/Turabian StyleChoi, Taeyoung, Changyong Cao, Xi Shao, and Wenhui Wang. 2022. "S-NPP VIIRS Lunar Calibrations over 10 Years in Reflective Solar Bands (RSB)" Remote Sensing 14, no. 14: 3367. https://doi.org/10.3390/rs14143367