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Publications

Found 107 results
Author [ Title(Desc)] Type Year
Filters: Type is Presentation and Author is A. Angal  [Clear All Filters]
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A
Madhavan, S., A. Angal, J. Dodd, J. Sun, and X. Xiong, "Analog and digital saturation in the MODIS reflective solar bands", Proceedings of SPIE- Earth Observing Systems XVII, vol. 8510, issue 85101N, 2012.
Wilson, T., E. Aldoretta, A. Angal, X. Geng, K. Twedt, and X. Xiong, "Analysis of the on-orbit responseversus-scan-angle for the MODIS SWIR bands derived from lunar observations", Proc. of SPIE - Sensors, Systems, and Next-Generation Satellites XXIV, vol. 11530, pp. 115301E, 2020.
Xiong, X., J. Sun, A. Angal, K. Chiang, and W. Barnes, "Applications and results of MODIS lunar observations, Sensors, Systems, and Next Generation Satellites XI", Proc. SPIE, vol. 6744, no. 67441H, 2007.
Xiong, X., A. Angal, S. Madhavan, T. Choi, J. Dodd, X. Geng, Z. Wang, G. Toller, and W. Barnes, "Aqua MODIS 8-year on-orbit operation and calibration", Proceedings of SPIE – Sensors, Systems, and Next-Generation Satellites XIV, vol. 7826, no. 78261X, 2010.
Xiong, X., W. Barnes, and A. Angal, "Aqua MODIS on-orbit calibration and performance (2002- 2011)", (SPIE, 2011 Presentation only), 2011.
Xiong, X., J. Butler, J. Fulbright, A. Angal, H. Chen, and Z. Wang, "Assessment and Comparison of MODIS and VIIRS SD On-orbit Degradation", Proceedings of CALCON, 2015.
Chander, G., X. Xiong, A. Angal, and T. Choi, An Assessment of African Test Sites in the Context of a Global Network of Quality-Assured Reference Standards, 2009.
Wu, A., Q. Mu, A. Angal, and X. Xiong, "Assessment of MODIS and VIIRS calibration consistency for reflective solar bands calibration using vicarious approaches", Proc. of SPIE - Sensors, Systems, and Next-Generation Satellites XXIV, vol. 11530, pp. 1153018, 2020.
Xiong, X., J. Fulbright, A. Angal, Z. Wang, X. Geng, and J. Butler, "Assessment of MODIS and VIIRS solar diffuser on-orbit degradation ", Proc. SPIE 9607, Earth Observing Systems XX, 96071T, 2015.
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.
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.
Xiong, X., A. Wu, and A. Angal, "Assessment of MODIS Scan Mirror Reflectance Changes On-orbit, Earth Observing Systems XIII", Proc. SPIE, vol. 7081, no. 70810B, 2008.
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.
Chander, G., X. Xiong, T. Choi, and A. Angal, An Assessment of Pseudo-Invariant CEOS Reference Standard Test Sites for Stability Monitoring, 2009.
Wu, A., X. Chen, A. Angal, Y. Li, and X. Xiong, "Assessment of the collection 6 terra and aqua MODIS bands 1 and 2 calibration performance ", Proc. SPIE 9607, Earth Observing Systems XX, 96072B, 2015.
Angal, A., J. Sun, X. Geng, M. Chu, and X. Xiong, "Assessment of the MODIS RSB detector differences using earth-view targets ", Proc. SPIE 8866, Earth Observing Systems XVIII, 88661T, 2013.
Choi, T., X. Xiong, G. Chander, and A. Angal, Assessment of the Short-term Radiometric Stability Between Terra MODIS and Landsat 7 ETM+ Sensors, 2009.
B
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.
C
Xiong, X., A. Angal, J. Fulbright, N. Lei, Q. Mu, Z. Wang, and A. Wu, "Calibration improvements for MODIS and VIIRS SWIR spectral bands ", Proc. SPIE 9607, Earth Observing Systems XX, 96071Z, 2015.
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.
Xiong, X., R. E. Eplee, Jr., J. Sun, F. S. Patt, A. Angal, and C. McClain, "Characterization of MODIS and SeaWiFS Solar Diffuser On-Orbit Degradation, Earth Observing Systems XIV", Proc. SPIE, vol. 7452, no. 74520Y, 2009.
Geng, X., A. Angal, J. Sun, A. Wu, T. Choi, and X. Xiong, "Characterization of MODIS mirror side difference in the reflective solar spectral region", Proceedings of SPIE – Earth Observing Systems XVI, vol. 8153, no. 81531O, 2011.
Xiong, X., H. Chen, Z. Wang, J. Sun, and A. Angal, "Characterization of MODIS Solar Diffuser On-orbit Degradation", Proceedings of CALCON 2010, 2010.
Xiong, X., X. Xie, A. Angal, J. Choi, J. Sun, and W. Barnes, "Characterization of MODIS solar diffuser on-orbit degradation, Earth Observing Systems XII", Proc. SPIE, vol. 6677, no. 66770O, 2007.
Chander, G., X. Xiong, A. Angal, and T. Choi, "Comparing the on-orbit radiometric stability of the IRS-P6 AWiFS & CBERS-2/2B CCD sensors with the Landsat 7 ETM+ & Terra MODIS sensors, Sensors, Systems, and Next-Generation Satellites XIII", Proc. SPIE, vol. 7474, no. 74740Z, 2009.
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.
Xiong, X., J. Fulbright, A. Angal, J. Sun, and Z. Wang, "Comparison of MODIS and VIIRS Solar Diffuser Stability Monitor Performance", Proc. SPIE 8528, Earth Observing Missions and Sensors: Development, Implementation and Characterization II, 852809, 2012.
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.
Xiong, X., J. Sun, N. Che, T. Choi, and A. Angal, "Comparison of Terra and Aqua MODIS VIS Bands On-orbit Response", Proc. IEEE International Geoscience and Remote Sensing Symposium, vol. 4, pp. IV-1348-1351, 2008.
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.
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.
Angal, A., J. Brinkmann, N. Mishra, D. Link, X. Xiong, and D. L. Helder, "Cross-calibration of the reflective solar bands of Terra MODIS and Landsat 7 Enhanced Thematic Mapper plus over PICS using different approaches ", Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 963911, 2015.
Chander, G., A. Angal, T. Choi, D. Meyer, X. Xiong, and P. M. Teillet, "Cross-calibration of the Terra MODIS, Landsat-7 ETM+ and EO-1 ALI sensors using near simultaneous surface observation over Railroad Valley Playa, Nevada, test site, Earth Observing Systems XII", Proc. SPIE, vol. 6677, no. 66770Y, 2007.
E
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.
G
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.