Evaluation of VIIRS and MODIS thermal emissive band calibration consistency using Dome C

Madhavan, Sriharsha; Wu, Aisheng; Brinkmann, Jake; Wenny, Brian N.; Xiong, Xiaoxiong

doi:10.1117/12.2196389

Cited by 4 publications

(4 citation statements)

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“…The VIIRS-IASI and VIIRS-CrIS findings closely agree for the spectrally-matched TEB for warm scenes, but small offsets exist for cold scenes [41]. The calibration stability of VIIRS TEB was evaluated by reference to stable ground-based temperature measurements at the Dome C site [42]. No significant evidence of any temporal drift was observed due to the fact that there is a large variability in the temperature difference trends, and it is expected that at least 10 years of cumulative datasets are required in order to detect any calibration trends.…”

Section: Changes and Improvements (Made Since Launch For Online And Offline Processing)mentioning

confidence: 87%

Assessment of S-NPP VIIRS On-Orbit Radiometric Calibration and Performance

et al. 2016

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The VIIRS instrument on board the S-NPP spacecraft has successfully operated for more than four years since its launch in October 2011. Many VIIRS environmental data records (EDR) have been continuously generated from its sensor data records (SDR) with improved quality, enabling a wide range of applications in support of users in both the operational and research communities. This paper provides a brief review of sensor on-orbit calibration methodologies for both the reflective solar bands (RSB) and the thermal emissive bands (TEB) and an overall assessment of their on-orbit radiometric performance using measurements from instrument on-board calibrators (OBC), as well as regularly scheduled lunar observations. It describes and illustrates changes made and to be made for calibration and data quality improvements. Throughout the mission, all of the OBC have continued to operate and function normally, allowing critical calibration parameters used in the data production systems to be derived and updated. The temperatures of the on-board blackbody (BB) and the cold focal plane assemblies are controlled with excellent stability. Despite large optical throughput degradation discovered shortly after launch in several near-and short-wave infrared spectral bands and strong wavelength-dependent solar diffuser degradation, the VIIRS overall performance has continued to meet its design requirements. Also discussed in this paper are challenging issues identified and efforts to be made to further enhance the sensor calibration and characterization, thereby maintaining or improving data quality.

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Section: Changes and Improvements (Made Since Launch For Online And Offline Processing)mentioning

confidence: 87%

Assessment of S-NPP VIIRS On-Orbit Radiometric Calibration and Performance

et al. 2016

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“…The methods for sensor intercomparisons have been overviewed in the literatures (Chander et al, 2013;Xiong et al, 2010). The intersatellite sensor comparisons for thermal bands have been performed using simultaneous nadir overpasses (SNO) and calibration sites such Dome Concordia (Dome C) site in Antarctica, Lake Tahoe, ocean buoys, and various land sites (Cao et al, 2004;Xiong et al, 2008;Gunshor et al, 2009;Shrestha et al, 2018;Madhavan et al, 2015;Hook et al, 2007;Tobin et al, 2006;Moeller et al, 2014, andVeglio et al, 2016). The SNO method has also been applied to ABI TEB assessment using Infrared Atmospheric Sounding Interferometer (IASI) on MetOp-B and the Cross-track Infrared Sounder (CrIS) on S-NPP (Yu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

GOES‐16/ABI Thermal Emissive Band Assessments Using GEO‐LEO‐GEO Double Difference

Chang

Xiong

2019

Earth and Space Science

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Geostationary satellite (GOES)-16/Advanced Baseline Imager (ABI) and Himawari-8/ Advanced Himawari Imager (AHI) represent a significant improvement over the imagers on board previous GOES. Their bands 7-16 are infrared channels covering the 3.9-to 13.3-μm spectral range and with a subpoint spatial resolution of 2 km. Their spectral coverage of the thermal emissive bands (TEBs) is almost identical, and both instruments employ similar calibration strategies using an on-board blackbody and a space look. The intercomparison between the two instruments will be very helpful for their calibration assessments and their product quality enhancements. GOES-16 was launched on 19 November 2016, initially to a test position at 89.5°west and reached its operational position (longitude of 75.2°west) on 11 December 2017. The Himawari-8 spacecraft was launched on 7 October 2014 and the observation focuses on Asia-Pacific region. In this work, an intercomparison of their TEB measurement is performed using double difference with Aqua Moderate Resolution Imaging Spectroradiometer (MODIS). The same type of scenes are selected for the two instruments, and their measurements with the closest observation times are compared with Aqua MODIS matching bands. The view angle effect is corrected and their spectral mismatching effect is estimated. The dependence on the scene uniformity is analyzed. The ABI-AHI differences are within 0.3K for bands 10 (7.35 μm), 11 (8.44 μm), 12 (9.64 μm), and 14 (11.24 μm), and up to 0.8K difference for bands 15 (12.38 μm) and 16 (13.28 μm). The ABI precision is better than AHI for all TEB and their image navigation and registration precisions are comparable. In general, the ABI performances before and after relocation are consistent.Key Points:• Application of double difference method to GEO-GEO sensor using LEO sensor as a bridge • GOES-16/ABI thermal emissive band assessment with comparison with Himawari-8/AHI and overall the ABI and AHI IR bands compare well. • GOES-16/ABI thermal emissive bands consistent assessment before and after spacecraft re-location.

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“…Several Earth surface sites with stable radiometric characteristics are widely used as references to monitor satellite sensor long-term stability [4][5][6][7]. In this study, we chose the Libya 4 desert site and Dome C in Antarctica as reference sites, as they have been used extensively in previous studies to monitor satellite performance.…”

Section: Reference Sitesmentioning

confidence: 99%

“…The Dome C site (Latitude: 74.50 • S, Longitude: 123.00 • E) is one of the several plateaus on the Antarctic ice sheet and it is considered to be a nearly homogeneous surface [5][6][7]. Located in the east Antarctic, Dome C is covered by snow and has an extremely small terrain surface slope.…”

Section: Reference Sitesmentioning

confidence: 99%

Using Ground Targets to Validate S-NPP VIIRS Day-Night Band Calibration

Chen

Xiong

et al. 2016

Remote Sensing

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Abstract:In this study, the observations from S-NPP VIIRS Day-Night band (DNB) and Moderate resolution bands (M bands) of Libya 4 and Dome C over the first four years of the mission are used to assess the DNB low gain calibration stability. The Sensor Data Records produced by NASA Land Product Evaluation and Algorithm Testing Element (PEATE) are acquired from nearly nadir overpasses for Libya 4 desert and Dome C snow surfaces. A kernel-driven bidirectional reflectance distribution function (BRDF) correction model is used for both Libya 4 and Dome C sites to correct the surface BRDF influence. At both sites, the simulated top-of-atmosphere (TOA) DNB reflectances based on SCIAMACHY spectral data are compared with Land PEATE TOA reflectances based on modulated Relative Spectral Response (RSR). In the Libya 4 site, the results indicate a decrease of 1.03% in Land PEATE TOA reflectance and a decrease of 1.01% in SCIAMACHY derived TOA reflectance over the period from April 2012 to January 2016. In the Dome C site, the decreases are 0.29% and 0.14%, respectively. The consistency between SCIAMACHY and Land PEATE data trends is good. The small difference between SCIAMACHY and Land PEATE derived TOA reflectances could be caused by changes in the surface targets, atmosphere status, and on-orbit calibration. The reflectances and radiances of Land PEATE DNB are also compared with matching M bands and the integral M bands based on M4, M5, and M7. The fitting trends of the DNB to integral M bands ratios indicate a 0.75% decrease at the Libya 4 site and a 1.89% decrease at the Dome C site. Part of the difference is due to an insufficient number of sampled bands available within the DNB wavelength range. The above results indicate that the Land PEATE VIIRS DNB product is accurate and stable. The methods used in this study can be used on other satellite instruments to provide quantitative assessments for calibration stability.

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Evaluation of VIIRS and MODIS thermal emissive band calibration consistency using Dome C

Cited by 4 publications

References 12 publications

Assessment of S-NPP VIIRS On-Orbit Radiometric Calibration and Performance

Assessment of S-NPP VIIRS On-Orbit Radiometric Calibration and Performance

GOES‐16/ABI Thermal Emissive Band Assessments Using GEO‐LEO‐GEO Double Difference

Using Ground Targets to Validate S-NPP VIIRS Day-Night Band Calibration

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