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Kevin A Twedt

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Kevin A Twedt

  • Senior Research Scientist
  • NASA/GSFC
  • Mail Code: 618
  • LANHAM , MD 20706
  • Employer: SCIENCE SYSTEMS AND APPLICATIONS INC

    • Publications

    Refereed

    Twedt, K., N. Lei, X. Xiong, et al. A. Angal, S. Li, T. Chang, and J. Sun. 2022. "On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands." IEEE Transactions on Geoscience and Remote Sensing, 60: 1-13 [10.1109/tgrs.2021.3108970]

    Twedt, K. A., S. Henderson, X. Xiong, A. Angal, and X. Geng. 2022. "Nonlinear Detector Response of Aqua MODIS Land Imaging Bands." IEEE Transactions on Geoscience and Remote Sensing, 60: 1-10 [10.1109/tgrs.2021.3075384]

    Xiong, X., A. Angal, Y. Li, and K. Twedt. 2020. "Improvements of on-orbit characterization of Terra MODIS short-wave infrared spectral bands out-of-band responses." Journal of Applied Remote Sensing, 14 (04): [10.1117/1.jrs.14.047503]

    Lei, N., K. A. Twedt, X. Xiong, and A. Angal. 2020. "Performance of NOAA-20 VIIRS Solar Diffuser and Solar Diffuser Stability Monitor." IEEE Transactions on Geoscience and Remote Sensing, 59 (9): 7180-7188 [10.1109/tgrs.2020.3032068]

    Lei, N., X. Xiong, Z. Wang, S. Li, and K. Twedt. 2020. "SNPP VIIRS RSB on-orbit radiometric calibration algorithms Version 2.0 and the performances, part 2: the performances." Journal of Applied Remote Sensing, 14 (04): [10.1117/1.jrs.14.047502]

    Lei, N., X. Xiong, Z. Wang, S. Li, and K. Twedt. 2020. "SNPP VIIRS RSB on-orbit radiometric calibration algorithms Version 2.0 and the performances, part 1: the algorithms." Journal of Applied Remote Sensing, 14 (04): [10.1117/1.jrs.14.047501]

    Xiong, X., A. Angal, T. Chang, et al. K. Chiang, N. Lei, Y. Li, J. Sun, K. Twedt, and A. Wu. 2020. "MODIS and VIIRS Calibration and Characterization in Support of Producing Long-Term High-Quality Data Products." Remote Sensing, 12 (19): 3167 [10.3390/rs12193167]

    Xiong, X., E. Aldoretta, A. Angal, et al. T. Chang, X. Geng, D. Link, V. Salomonson, K. Twedt, and A. Wu. 2020. "Terra MODIS: 20 years of on-orbit calibration and performance." Journal of Applied Remote Sensing, 14 (03): 1 [10.1117/1.jrs.14.037501]

    Angal, A., X. Geng, X. Xiong, et al. K. A. Twedt, A. Wu, D. O. Link, and E. Aldoretta. 2020. "On-Orbit Calibration of Terra MODIS VIS Bands Using Polarization-Corrected Desert Observations." IEEE Transactions on Geoscience and Remote Sensing, 58 (8): 5428-5439 [10.1109/tgrs.2020.2966000]

    Twedt, K. A., A. Angal, and X. Xiong. 2020. "Effects of out-of-band and time-varying relative spectral response on the calibration of MODIS reflective solar bands." Journal of Applied Remote Sensing, 14 (02): 1 [10.1117/1.jrs.14.024523]

    Xiong, X., A. Angal, K. A. Twedt, et al. H. Chen, D. Link, X. Geng, E. Aldoretta, and Q. Mu. 2019. "MODIS Reflective Solar Bands On-Orbit Calibration and Performance." IEEE Transactions on Geoscience and Remote Sensing, 57 (9): 6355 - 6371 [10.1109/TGRS.2019.2905792]

    Chen, H., X. Xiong, X. Geng, and K. Twedt. 2019. "Stray-light correction and prediction for Suomi National Polar-orbiting Partnership visible infrared imaging radiometer suite day-night band." Journal of Applied Remote Sensing, 13 (02): 1 [10.1117/1.jrs.13.024521]

    Xiong, X., A. Angal, W. L. Barnes, et al. H. Chen, V. Chiang, X. Geng, Y. Li, K. Twedt, Z. Wang, T. Wilson, and A. Wu. 2018. "Updates of Moderate Resolution Imaging Spectroradiometer on-orbit calibration uncertainty assessments." Journal of Applied Remote Sensing, 12 (03): 1 [10.1117/1.jrs.12.034001]

    Chen, H., X. Xiong, A. Angal, and K. A. Twedt. 2017. "On-Orbit Characterization of the MODIS SDSM Screen for Solar Diffuser Degradation Estimation." IEEE Transactions on Geoscience and Remote Sensing, 55 (11): 6456-6467 [10.1109/tgrs.2017.2728520]

    Publications

    Refereed

    Twedt, K., N. Lei, X. Xiong, et al. A. Angal, S. Li, T. Chang, and J. Sun. 2022. "On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands." IEEE Transactions on Geoscience and Remote Sensing 60 1-13 [10.1109/tgrs.2021.3108970]

    Twedt, K. A., S. Henderson, X. Xiong, A. Angal, and X. Geng. 2022. "Nonlinear Detector Response of Aqua MODIS Land Imaging Bands." IEEE Transactions on Geoscience and Remote Sensing 60 1-10 [10.1109/tgrs.2021.3075384]

    Xiong, X., A. Angal, Y. Li, and K. Twedt. 2020. "Improvements of on-orbit characterization of Terra MODIS short-wave infrared spectral bands out-of-band responses." Journal of Applied Remote Sensing 14 (04): [10.1117/1.jrs.14.047503]

    Lei, N., K. A. Twedt, X. Xiong, and A. Angal. 2020. "Performance of NOAA-20 VIIRS Solar Diffuser and Solar Diffuser Stability Monitor." IEEE Transactions on Geoscience and Remote Sensing 59 (9): 7180-7188 [10.1109/tgrs.2020.3032068]

    Lei, N., X. Xiong, Z. Wang, S. Li, and K. Twedt. 2020. "SNPP VIIRS RSB on-orbit radiometric calibration algorithms Version 2.0 and the performances, part 2: the performances." Journal of Applied Remote Sensing 14 (04): [10.1117/1.jrs.14.047502]

    Lei, N., X. Xiong, Z. Wang, S. Li, and K. Twedt. 2020. "SNPP VIIRS RSB on-orbit radiometric calibration algorithms Version 2.0 and the performances, part 1: the algorithms." Journal of Applied Remote Sensing 14 (04): [10.1117/1.jrs.14.047501]

    Xiong, X., A. Angal, T. Chang, et al. K. Chiang, N. Lei, Y. Li, J. Sun, K. Twedt, and A. Wu. 2020. "MODIS and VIIRS Calibration and Characterization in Support of Producing Long-Term High-Quality Data Products." Remote Sensing 12 (19): 3167 [10.3390/rs12193167]

    Xiong, X., E. Aldoretta, A. Angal, et al. T. Chang, X. Geng, D. Link, V. Salomonson, K. Twedt, and A. Wu. 2020. "Terra MODIS: 20 years of on-orbit calibration and performance." Journal of Applied Remote Sensing 14 (03): 1 [10.1117/1.jrs.14.037501]

    Angal, A., X. Geng, X. Xiong, et al. K. A. Twedt, A. Wu, D. O. Link, and E. Aldoretta. 2020. "On-Orbit Calibration of Terra MODIS VIS Bands Using Polarization-Corrected Desert Observations." IEEE Transactions on Geoscience and Remote Sensing 58 (8): 5428-5439 [10.1109/tgrs.2020.2966000]

    Twedt, K. A., A. Angal, and X. Xiong. 2020. "Effects of out-of-band and time-varying relative spectral response on the calibration of MODIS reflective solar bands." Journal of Applied Remote Sensing 14 (02): 1 [10.1117/1.jrs.14.024523]

    Xiong, X., A. Angal, K. A. Twedt, et al. H. Chen, D. Link, X. Geng, E. Aldoretta, and Q. Mu. 2019. "MODIS Reflective Solar Bands On-Orbit Calibration and Performance." IEEE Transactions on Geoscience and Remote Sensing 57 (9): 6355 - 6371 [10.1109/TGRS.2019.2905792]

    Chen, H., X. Xiong, X. Geng, and K. Twedt. 2019. "Stray-light correction and prediction for Suomi National Polar-orbiting Partnership visible infrared imaging radiometer suite day-night band." Journal of Applied Remote Sensing 13 (02): 1 [10.1117/1.jrs.13.024521]

    Xiong, X., A. Angal, W. L. Barnes, et al. H. Chen, V. Chiang, X. Geng, Y. Li, K. Twedt, Z. Wang, T. Wilson, and A. Wu. 2018. "Updates of Moderate Resolution Imaging Spectroradiometer on-orbit calibration uncertainty assessments." Journal of Applied Remote Sensing 12 (03): 1 [10.1117/1.jrs.12.034001]

    Chen, H., X. Xiong, A. Angal, and K. A. Twedt. 2017. "On-Orbit Characterization of the MODIS SDSM Screen for Solar Diffuser Degradation Estimation." IEEE Transactions on Geoscience and Remote Sensing 55 (11): 6456-6467 [10.1109/tgrs.2017.2728520]

                                                                                                                                                                                            
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    • Last Updated: 09/25/2023