2018
DOI: 10.1029/2017jd027849
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Intercomparison Between VIIRS and CrIS by Taking Into Account the CrIS Subpixel Cloudiness and Viewing Geometry

Abstract: The Cross‐track Infrared Sounder (CrIS) onboard the Suomi National Polar‐orbiting Partnership (SNPP) has high radiometric accuracy, which can be used to intercompare and understand the radiometric performance of the thermal emissive bands of the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the same platform. Previous studies usually selected uniform scenes to avoid potential uncertainties due to geolocation errors. This study focuses on all scenes (including nonuniform scenes), as well as CrIS sub… Show more

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Cited by 9 publications
(6 citation statements)
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“…Taking advantages of high spatial resolution imaging and high spectral resolution sounding instruments from the same platform, synergistic use of collocated two types of measurements has shown to be very useful in retrieval of sounding and cloud properties (Li et al, ; Li et al, ; Li et al, ), and in assimilating radiances into NWP models, especially in cloudy skies (Li et al, , Li et al, ; P. Wang et al, , 2015, 2017). Previous work has pointed out the advantages of using VIIRS and CrIS for intercalibration (Chen et al, , ; Gong et al, ; Moeller et al, ; Tobin et al, ; L. Wang et al, ). With collocated CrIS measurements, the BNR technique can be adopted and applied for detecting VIIRS DCC pixels.…”
Section: Introductionmentioning
confidence: 99%
“…Taking advantages of high spatial resolution imaging and high spectral resolution sounding instruments from the same platform, synergistic use of collocated two types of measurements has shown to be very useful in retrieval of sounding and cloud properties (Li et al, ; Li et al, ; Li et al, ), and in assimilating radiances into NWP models, especially in cloudy skies (Li et al, , Li et al, ; P. Wang et al, , 2015, 2017). Previous work has pointed out the advantages of using VIIRS and CrIS for intercalibration (Chen et al, , ; Gong et al, ; Moeller et al, ; Tobin et al, ; L. Wang et al, ). With collocated CrIS measurements, the BNR technique can be adopted and applied for detecting VIIRS DCC pixels.…”
Section: Introductionmentioning
confidence: 99%
“…However, under cloudy situations, especially those that are overcast, the scene temperature dependence is significant; for example, when the scene becomes colder, the BIAS and STD are larger. The large cold biases of the IR window bands at low‐temperature scenes were also similarly presented in the inter‐comparisons of LEO broad band imagers (e.g., VIIRS, MODIS) and hyperspectral sounder measurements (Gong et al., 2018; Moeller et al., 2013; Veglio et al., 2016). And it is interesting to see that the bias reaches a local minima of around 295–300K under a clear and partially cloudy situation, which presumably is close to the temperature of the black body.…”
Section: Results and Analysismentioning
confidence: 67%
“…They have been well‐calibrated pre‐launch and post‐launch and are often used as benchmark instruments to evaluate the IR band calibration accuracy of broad band imagers (Wang et al., 2009; Wu et al., 2009). In general, imagers onboard polar orbiting satellites, such as the MODerate resolution Imaging Spectroradiometer (MODIS), Visible Infrared Imaging Radiometer Suite (VIIRS), Advanced Very High Resolution Radiometer (AVHRR), etc., can be inter‐calibrated with a hyperspectral IR sounder onboard the same platform (Gong et al., 2018; Moeller et al., 2013), while GEO imagers can also be inter‐calibrated with collocated hyperspectral IR sounders from low earth orbit (LEO) satellites (He et al., 2022; Hewison et al., 2013; Hu et al., 2013; Wang et al., 2009), which is useful for monitoring the stability of the imagers' IR band calibration accuracy.…”
Section: Introductionmentioning
confidence: 99%
“…Spectral radiance convolution calculation is broadly used in various applications of satellite remote sensing including radiance simulation [1][2][3][4][5], validation [6,7], and space-based intercomparison or intercalibration [8][9][10][11][12][13][14][15][16][17][18]. Generally, the monochromatic radiance spectrum of high spectral resolution calculated from an accurate line-by-line model is regarded as one source of references for calibration and validation of radiometric accuracies of broadband imagers.…”
Section: Introductionmentioning
confidence: 99%
“…Others, such as Gunshor [20] and Wang [15], have used the hyperspectral IR radiance measurements from the (AIRS) and Infrared Atmospheric Sounder Interferometer (IASI) to intercalibrate water vapor bands on broadband instruments such as the Geostationary Operational Environmental Satellite-11 (GOES-11) and GOES-12 imagers. Gong [8] also intercalibrated thermal emissive bands of the Visible Infrared Imaging Radiometer Suite (VIIRS) using Cross-track Infrared Sounder (CrIS) onboard the same platform-Suomi National Polar-orbiting Partnership (SNPP) as a reference.…”
Section: Introductionmentioning
confidence: 99%