MODIS radiometric calibration program, methods and results

Xiong, Xiaoxiong; Guenther, B.; Angal, Amit; Barnes, William; Salomonson, V. V.; Sun, Junqiang; Wenny, Brian N.

doi:10.1109/igarss.2012.6352570

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…MODIS shortwave radiances are calibrated on board using a solar diffuser and a solar diffuser stability monitor, and, for the recently released Collection 6 data, psuedoinvariant desert targets [ Sun et al , ]. The calibration is also monitored using monthly lunar surface observations [ Xiong et al , ].…”

Section: Data Setsmentioning

confidence: 99%

On the relative stability of CERES reflected shortwave and MISR and MODIS visible radiance measurements during the Terra satellite mission

Corbett

Loeb

2015

JGR Atmospheres

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Fifteen years of visible, near‐infrared, and broadband shortwave radiance measurements from Clouds and the Earth's Radiant Energy System (CERES), Multiangle Imaging Spectroradiometer (MISR), and Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on board NASA's Terra satellite are analyzed in order to assess their long‐term relative stability for climate purposes. A regression‐based approach between CERES, MODIS, and MISR (An camera only) reflectances is used to calculate the bias between the different reflectances relative to a reference year. When compared to the CERES shortwave broadband reflectance, relative drift between the MISR narrowbands is within 1% decade−1. Compared to the CERES shortwave reflectance, the MODIS narrowband reflectances show a relative drift of less than −1.33% decade−1. When compared to MISR, the MODIS reflectances show a relative drift of between −0.36% decade−1 and −2.66% decade−1. We show that the CERES Terra SW measurements are stable over the time period relative to CERES Aqua. Using this as evidence that CERES Terra may be absolutely stable, we suggest that the CERES, MISR, and MODIS instruments meet the radiometric stability goals for climate applications set out in Ohring et al. (2005).

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Section: Data Setsmentioning

confidence: 99%

On the relative stability of CERES reflected shortwave and MISR and MODIS visible radiance measurements during the Terra satellite mission

Corbett

Loeb

2015

JGR Atmospheres

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“…The MCST has been responsible for both MODIS instrument operation, the Level 1B algorithm development and improvements, and sensor calibration and characterization throughout their entire missions. It works closely with the NASA Terra and Aqua mission Flight Operation Team (FOT) and MODIS Science Team (MST) representatives to assure instrument nominal operation and to maintain data product quality [2].…”

Section: Introductionmentioning

confidence: 99%

Global space-based inter-calibration system reflective solar calibration reference: from Aqua MODIS to S-NPP VIIRS

Xiong¹,

Angal²,

Butler³

et al. 2016

SPIE Proceedings

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The MODIS has successfully operated on-board the NASA's EOS Terra and Aqua spacecraft for more than 16 and 14 years, respectively. MODIS instrument was designed with stringent calibration requirements and comprehensive on-board calibration capability. In the reflective solar spectral region, Aqua MODIS has performed better than Terra MODIS and, therefore, has been chosen by the Global Space-based InterCalibration System (GSICS) operational community as the calibration reference sensor in cross-sensor calibration and calibration inter-comparisons. For the same reason, it has also been used by a number of earthobserving sensors as their calibration reference. Considering that Aqua MODIS has already operated for nearly 14 years, it is essential to transfer its calibration to a follow-on reference sensor with a similar calibration capability and stable performance. The VIIRS is a follow-on instrument to MODIS and has many similar design features as MODIS, including their on-board calibrators (OBC). As a result, VIIRS is an ideal candidate to replace MODIS to serve as the future GSICS reference sensor. Since launch, the S-NPP VIIRS has already operated for more than 4 years and its overall performance has been extensively characterized and demonstrated to meet its overall design requirements. This paper provides an overview of Aqua MODIS and S-NPP VIIRS reflective solar bands (RSB) calibration methodologies and strategies, traceability, and their on-orbit performance. It describes and illustrates different methods and approaches that can be used to facilitate the calibration reference transfer, including the use of desert and Antarctic sites, deep convective clouds (DCC), and the lunar observations.

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“…The MODIS is one of the key instruments developed for the NASA's EOS missions, currently operated on the Terra and Aqua spacecraft. Since launch in May 2002, the Aqua MODIS has successfully operated for 15 years and produced many high quality long-term data records, enabling support for a broad range of research activities and applications by the science and user community [1][2][3]. MODIS observations are made using 36 spectral bands with wavelengths from 0.41 to 14.5 m.…”

Section: Introductionmentioning

confidence: 99%

15 Years of Aqua MODIS on-orbit operation, calibration, and performance

Xiong

Angal

et al. 2017

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)

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Since launch on May 04, 2002, Aqua MODIS has successfully operated for 15 years and continuously produced from its observations many data products in support of a broad range of scientific research activities and applications. Its overall mission success has relied heavily on the dedicated efforts to operate and calibrate the instrument and to track and correct on-orbit changes in sensor responses. This paper provides an overview of Aqua MODIS instrument operation and calibration activities, algorithm improvements, and look-up-table (LUT) updates. Results derived from various on-orbit calibration targets are presented to demonstrate sensor long-term performance. Also discussed in this paper are challenging issues identified and future efforts to maintain instrument calibration and data quality.

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MODIS radiometric calibration program, methods and results

Cited by 8 publications

References 5 publications

On the relative stability of CERES reflected shortwave and MISR and MODIS visible radiance measurements during the Terra satellite mission

On the relative stability of CERES reflected shortwave and MISR and MODIS visible radiance measurements during the Terra satellite mission

Global space-based inter-calibration system reflective solar calibration reference: from Aqua MODIS to S-NPP VIIRS

15 Years of Aqua MODIS on-orbit operation, calibration, and performance

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