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Publications

Found 102 results
Author Title Type [ Year(Asc)]
Filters: Type is Presentation and Author is A. Angal  [Clear All Filters]
2019
Twedt, K. A., A. Angal, H. Chen, and X. Xiong, "Comparison of MODIS solar diffuser stability monitor calibration results for different operational configurations", Proc. SPIE 11127, Earth Observing Systems XXIV, vol. 11127, pp. 1112728, 2019.
Geng, X., A. Angal, Y. Li, K. Twedt, and X. Xiong, "Improvements in the on-orbitresponse versus scan-anglecharacterization for the MODISocean color bands", Proc. SPIE 11151, Sensors, Systems, andNext-Generation Satellites XXIII, no. 115124, 2019.
Xiong, X., E. Aldoretta, A. Angal, T. Chang, X. Geng, D. Link, V. Salomonson, K. Twedt, and A. Wu, "Terra MODIS: 20 years of on-orbit calibration and performance", Proc. SPIE 11127, Earth Observing Systems XXIV, vol. 11127, pp. 1112714, 2019.
2018
Shrestha, A., A. Angal, and X..Xiong, "Evaluation of MODIS and Sentinel-3 SLSTR thermal emissive bands calibration consistency using Dome C", Proc. SPIE - Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXIV, vol. 10644, pp. 106441U, 2018.
Mu, Q., A. Angal, X. Geng, A. Wu, and X. Xiong, "Evaluation of the on-orbit response versus scan-angle (RVS) performance for the MODIS reflective solar bands using multiple ground targets", Proc. SPIE - Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXIV, vol. 10644, pp. 106441X, 2018.
2017
Xiong, X., A. Angal, A. Wu, Z. Wang, W. Barnes, and V. Salomonson, "15 Years of Aqua MODIS OnOrbit Operation, Calibration, and Performance", IEEE 2017 International Geoscience & Remote Sensing Symposium, pp. 4695-4698, 2017.
Xiong, X., A. Angal, D. Link, and A. Wu, "Assessment of MODIS reflective solar bands calibration stability", Proceedings Volume 10423, Sensors, Systems, and Next-Generation Satellites XXI; 1042318, 2017.
Wu, A., A. Angal, X. Geng, and X. Xiong, "Assessment of polarization correction impact on the calibration of Terra MODIS reflective solar bands", Proceedings Volume 10423, Sensors, Systems, and Next-Generation Satellites XXI; 104231C, 2017.
Wilson, T., A. Angal, A. Shrestha, and X. Xiong, "Lunar calibration improvements for the short-wave infrared bands in Aqua and Terra MODIS", Proceedings Volume 10423, Sensors, Systems, and Next-Generation Satellites XXI; 1042313, 2017.
Twedt, K. A., A. Angal, X. Xiong, X. Geng, and H. Chen, "MODIS solar diffuser degradation at short-wave infrared band wavelengths", Proc. SPIE Earth Observing Systems XXII, vol. 10402, no. 104022K, 2017.
Xiong, X., A. Angal, W. Barnes, H. Chen, V. Chiang, X. Geng, Y. Li, K. Twedt, Z. Wang, T. Wilson, et al., "Updates of MODIS on-orbit calibration uncertainty assessments", Proc. SPIE - Earth Observing Systems XXII, vol. 10402, no. 104020M, 2017.
2016
Mu, Q., A. Wu, T. Chang, A. Angal, D. Link, X. Xiong, D. R. Doelling, and R. Bhatt, "Assessment of MODIS on-orbit calibration using a deep convective cloud technique", Proc. SPIE 9972, Earth Observing Systems XXI, 997210, 2016.
Chang, T., X. Xiong, A. Angal, and A. Wu, "BRDF characterization and calibration inter-comparison between Terra MODIS, Aqua MODIS, and S-NPP VIIRS", Proc. SPIE 10000, Sensors, Systems, and Next-Generation Satellites XX, 100000Z, 2016.
Li, Y., A. Angal, A. Wu, X. Geng, D. Link, and X. Xiong, "Calibration improvements in the detector-to-detector differences for the MODIS ocean color bands", Proc. SPIE 9972, Earth Observing Systems XXI, 99721V, 2016.
Angal, A., J. Brinkmann, S. A. Kumar, and X. Xiong, "Cross-calibration of the Oceansat-2 Ocean Colour Monitor (OCM) with Terra and Aqua MODIS", Proc. of SPIE Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV, vol. 9881, 2016.
Xiong, X., A. Angal, J. Butler, C. Cao, D. R. Doelling, A. Wu, and X. Wu, "Global Space-based Inter-Calibration System Reflective Solar Calibration Reference: From Aqua MODIS to S-NPP VIIRS", Proc. of SPIE Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV, vol. 9881, 2016.
Wald, A., R. Levy, A. Angal, X. Geng, X. Xiong, and K. Hoffman, "Impact of MODIS SWIR band calibration improvements on Level-3 atmospheric products", Proc. SPIE 9827, Ocean Sensing and Monitoring VIII, 2016.
Li, Y., A. Angal, N. Chen, X. Geng, D. Link, Z. Wang, A. Wu, and X. Xiong, "Improvement in the characterization of MODIS subframe difference", Proc. SPIE 9972, Earth Observing Systems XXI, 99720W, 2016.
Chen, H., X. Xiong, A. Angal, Z. Wang, and A. Wu, "MODIS solar diffuser on-orbit degradation characterization using improved SDSM screen modeling ", Proc. SPIE 10000, Sensors, Systems, and Next-Generation Satellites XX, 100000X, 2016.
Angal, A., X. Xiong, A. Wu, H. Chen, X. Geng, D. Link, Y. Li, A. Wald, and J. Brinkmann, "On-orbit Performance and Calibration Improvements for the Reflective Solar Bands of Terra and Aqua MODIS", Proc. of SPIE Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV, vol. 9881, 2016.
Bhatt, R., A. Angal, D. R. Doelling, X. Xiong, A. Wu, C. O. Haney, B. Scarino, and A. Gopalan, "Response versus scan-angle corrections for MODIS reflective solar bands using deep convective clouds", Proc. of SPIE Earth Observing Missions and Sensors: Development, Implementation, and Characterization IV, vol. 9881, 2016.
Xiong, X., A. Angal, A. Wu, D. Link, X. Geng, W. Barnes, and V. Salomonson, "Sixteen years of Terra MODIS on-orbit operation, calibration, and performance ", Proc. SPIE 10000, Sensors, Systems, and Next-Generation Satellites XX, 100000V , 2016.
Angal, A., X. Geng, T. Wilson, A. Wu, and X. Xiong, "Status of MODIS Instruments and Calibration Improvements", Proceedings of the AGU, 2016.
Xiong, X., A. Angal, A. Wu, W. Barnes, and V. Salomonson, " Terra and Aqua MODIS instrument performance", IEEE Transactions on Geoscience and Remote Sensing, pp. 7388 - 7391, 2016.
2014
Xiong, X., B. N. Wenny, A. Angal, A. Wu, S. Madhavan, D. Link, and V. Salomonson, "15 Years of Terra MODIS Instrument on-Orbit Performance", Proceedings of the AGU, 2014.
Wu, A., A. Angal, and X. Xiong, "Comparison of coincident MODIS and MISR reflectances over the 15-year period of EOS Terra", Proc. SPIE 9218, Earth Observing Systems XIX, 92180W, 2014.
Xiong, X., S. Lachérade, L. Lebègue, B. Fougnie, A. Angal, Z. Wang, and O. Aznay, "Comparison of MODIS and PLEIADES Lunar observations ", Proc. SPIE 9241, Sensors, Systems, and Next-Generation Satellites XVIII, 924111, 2014.
Angal, A., N. Mishra, X. Xiong, and D. L. Helder, "Cross-calibration of Landsat 5 TM and Landsat 8 OLI with Aqua MODIS using PICS ", Proc. SPIE 9218, Earth Observing Systems XIX, 92180K, 2014.
Xiong, X., A. Angal, S. Madhavan, D. Link, X..Geng, B. N. Wenny, A. Wu, H. Chen, and V. Salomonson, "MODIS instrument operation and calibration improvements ", IEEE Transactions on Geoscience and Remote Sensing, pp. 1385 - 1388, 2014.
Angal, A., X. Xiong, X. Geng, and J. Sun, "Monitoring the Terra and Aqua MODIS RSB calibration using scattered light from the Nadir-port ", Proc. SPIE 9218, Earth Observing Systems XIX, 92181J, 2014.
Angal, A., A. Wu, X. Xiong, X. Geng, D. Link, and H. Chen, "On-orbit performance of the MODIS SWIR bands", Proc. SPIE 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III, 92641Q, 2014.
Chen, H., X. Xiong, A. Angal, X. Geng, and A. Wu, "Progress on Alternative Method of the on-orbit RVS Characterization for MODIS Reflective Solar Bands", Proc. SPIE 9218, Earth Observing Systems XIX, 92181K, 2014.
Xiong, X., A. Wu, A. Angal, D. R. Doelling, and C. Cao, " Reflective solar calibration reference transfer from Aqua MODIS to S-NPP VIIRS ", Proc. SPIE 9264, Earth Observing Missions and Sensors: Development, Implementation, and Characterization III, (presentation only), 2014.
Xiong, X., B. N. Wenny, A. Wu, A. Angal, X. Geng, H. Chen, J. Dodd, D. Link, S. Madhavan, N. Chen, et al., "Status of Terra MODIS operation, calibration, and performance ", Proc. SPIE 9218, Earth Observing Systems XIX, 92180O, 2014.