The curious case of the intersensor radiometric comparison of SNPP VIIRS M11 with Aqua MODIS B7

The inter-sensor radiometric comparison of the 2257 nm channel (M11) of SNPP VIIRS and the 2130 nm channel (B7) of Aqua MODIS curiously demonstrates a wildly varying time series, in stark contrast to the very stable results of other band pairs. A link is found between the few statistically robust outcomes in the time series and the land-based snowy scenes, specifically of Antarctica. With a refined procedure including a selection of land-based snowy scenes, we are able to generate a viable comparison time series of radiance of Aqua MODIS B7 over that of SNPP VIIRS M11. The refined time series shows multi-year stability and hovers around 0.39. The connection between the observed behaviors and their non-overlapping relative spectral responses (RSRs) is discussed.

[1]  Changyong Cao,et al.  On-orbit radiometric performance characterization of S-NPP VIIRS reflective solar bands , 2016, SPIE Asia-Pacific Remote Sensing.

[2]  Junqiang Sun,et al.  On-orbit calibration of Visible Infrared Imaging Radiometer Suite reflective solar bands and its challenges using a solar diffuser. , 2015, Applied optics.

[3]  Junqiang Sun,et al.  VIIRS Reflective Solar Bands Calibration Progress and Its Impact on Ocean Color Products , 2016, Remote. Sens..

[4]  S. Warren,et al.  A Model for the Spectral Albedo of Snow. I: Pure Snow , 1980 .

[5]  Aisheng Wu,et al.  Radiometric Intercomparison betweenSuomi-NPPVIIRS andAquaMODIS Reflective Solar Bands Using Simultaneous Nadir Overpass in the Low Latitudes , 2013 .

[6]  Junqiang Sun,et al.  Radiometric Evaluation of SNPP VIIRS Band M11 via Sub-Kilometer Intercomparison with Aqua MODIS Band 7 over Snowy Scenes , 2018, Remote. Sens..

[7]  Aisheng Wu,et al.  Assessment of SNPP VIIRS VIS/NIR Radiometric Calibration Stability Using Aqua MODIS and Invariant Surface Targets , 2016, IEEE Transactions on Geoscience and Remote Sensing.

[8]  Menghua Wang,et al.  On-orbit characterization of the VIIRS solar diffuser and solar diffuser screen. , 2015, Applied optics.

[9]  Changyong Cao,et al.  Suomi NPP VIIRS reflective solar band on-orbit radiometric stability and accuracy assessment using desert and Antarctica Dome C sites , 2015 .

[10]  Junqiang Sun,et al.  Radiometric evaluation of the SNPP VIIRS reflective solar band sensor data records via inter-sensor comparison with Aqua MODIS , 2016, Optical Engineering + Applications.

[11]  Wei Shi,et al.  VIIRS ocean color research and applications , 2015, 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).

[12]  Junqiang Sun,et al.  Radiometric calibration of the Visible Infrared Imaging Radiometer Suite reflective solar bands with robust characterizations and hybrid calibration coefficients. , 2015, Applied optics.

[13]  Junqiang Sun,et al.  Degradation nonuniformity in the solar diffuser bidirectional reflectance distribution function. , 2016, Applied optics.

[14]  Junqiang Sun,et al.  Visible Infrared Imaging Radiometer Suite solar diffuser calibration and its challenges using a solar diffuser stability monitor. , 2014, Applied optics.