A New Method for Characterizing NOAA-20/S-NPP VIIRS Thermal Emissive Bands Response Versus Scan Using On-Orbit Pitch Maneuver Data

Wang, Wenhui; Cao, Changyong; Blonski, Slawomir

doi:10.3390/rs11131624

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A New Method for Characterizing NOAA-20/S-NPP VIIRS Thermal Emissive Bands Response Versus Scan Using On-Orbit Pitch Maneuver Data

2019
By Wang, Wenhui ; Cao, Changyong ; Blonski, Slawomir
Source: Remote Sens. 2019, 11(13), 1624

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Journal Title:

Remote Sensing
Personal Author:

Wang, Wenhui ; Cao, Changyong ; Blonski, Slawomir

Wang, Wenhui ; Cao, Changyong ; Blonski, Slawomir Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research)

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research) Less -
Description:

The on-orbit calibration of Visible Infrared Imaging Radiometer Suite (VIIRS) Thermal Emissive Bands (TEB), onboard the National Oceanic and Atmospheric Administration-20 (NOAA-20) and the Suomi National Polar-orbiting Partnership (S-NPP) satellites, have been stable during nominal operations. However, larger than expected scan angle/scene temperature dependent biases, relative to the co-located Cross-track Infrared Sounder (CrIS) observations, were observed in the NOAA-20 longwave infrared (LWIR) bands. The Response Versus Scan (RVS) effect—the variation of instrument reflectance of source radiance with scan angle, is a significant contributor to VIIRS calibration. TEB RVS is characterized using prelaunch test data and verified on-orbit using pitch maneuver data. This study presents a new method that characterizes VIIRS on-orbit TEB RVS at both Earth View (EV) and Space View (SV) scan angles simultaneously. This method was compared with an existing on-orbit RVS method (the Wu et al. method), which derives RVS at EV scan angles using pitch maneuver data and extrapolates SV RVS from EV. The new method derived on-orbit RVS differ from prelaunch values up to 1.0% at the beginning of scan in the NOAA-20 LWIR bands, and ~0.5% in S-NPP M15. VIIRS–CrIS inter-comparison results indicates that the new method derived on-orbit RVS can effectively minimize LWIR scan angle/scene temperature dependent biases, with scan averaged biases reduced from 0.40K to 0.15K for NOAA-20 LWIR bands, and from 0.24K to 0.08K for S-NPP M15. The Wu et al. method can also reduce the scan angle dependent biases, but at the expense of increasing the scene temperature dependent biases.
Keywords:

[+]

Artificial Satellites Remote Sensing NOAA-20 On-orbit Pitch Maneuver Prelaunch Response Versus Scan (RVS) S-NPP Scan Angle/Scene Temperature Dependent Biases Thermal Emissive Bands (TEB) Visible Infrared Imaging Radiometer Suite (VIIRS)
Source:

Remote Sens. 2019, 11(13), 1624
DOI:

https://doi.org/10.3390/rs11131624
Document Type:

Journal Article
Rights Information:

CC BY
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Submitted
Main Document Checksum:

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urn:sha256:1253f64de11d774ee071cbfeef904741a040f150a3f3c0e9513485161e0a5e11
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https://repository.library.noaa.gov/view/noaa/45237/noaa_45237_DS1.pdf
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A New Method for Characterizing NOAA-20/S-NPP VIIRS Thermal Emissive Bands Response Versus Scan Using On-Orbit Pitch Maneuver Data

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