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Publications

Found 154 results
Author Title Type [ Year(Desc)]
Filters: Author is A. Angal  [Clear All Filters]
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.
Angal, A., X. Xiong, A. Wu, X. Geng, and H. Chen, "Improvements in the On-Orbit Response Versus Scan Angle Characterization of the Aqua MODIS Reflective Solar Bands", IEEE Transactions on Geoscience and Remote Sensing, vol. 56, issue 3, pp. 1728-1738, 2018.
Angal, A., X. Xiong, Q. Mu, D. R. Doelling, R. Bhatt, and A. Wu, "Results From the Deep Convective Clouds-Based Response Versus Scan-Angle Characterization for the MODIS Reflective Solar Bands", IEEE Transactions on Geoscience and Remote Sensing, vol. 56, issue 2, pp. 1115-1128, 2018.
Xiong, X., A. Angal, W. L. Barnes, H. Chen, V. Chiang, X. Geng, Y. Li, K. Twedt, Z. Wang, T. Wilson, et al., "Updates of Moderate Resolution Imaging Spectroradiometer on-orbit calibration uncertainty assessments", Journal of Applied Remote Sensing, vol. 12(3),034001, 2018.
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.
Raut, B., M. Kaewmanee, A. Angal, X. Xiong, and D. Helder, "Empirical Absolute Calibration Model for Multiple Pseudo-Invariant Calibration Sites", Remote Sensing, vol. 11, issue 9, pp. 1105, 2019.
Geng, X., A. Angal, Y. Li, K. Twedt, and X. Xiong, "Improvements in the on-orbit response versus scan-angle characterization for the MODIS ocean color bands", Proc. SPIE 11151, Sensors, Systems, andNext-Generation Satellites XXIII, no. 115124, 2019.
Xiong, X., A. Angal, K. A. Twedt, H. Chen, D. Link, X. Geng, E. Aldoretta, and Q. Mu, "MODIS Reflective Solar Bands On-Orbit Calibration and Performance", IEEE Transactions on Geoscience and Remote Sensing, vol. 57, issue 9, pp. 6355-6371, 2019.
Tuli, F., C. Pinto, A. Angal, X. Xiong, and D. Helder, "New Approach for Temporal Stability Evaluation of Pseudo-Invariant Calibration Sites (PICS)", Remote Sensing, vol. 11, issue 12, pp. 1502, 2019.
Chang, T., X. Xiong, and A. Angal, "Terra and Aqua MODIS TEB intercomparison using Himawari-8/AHI as reference", Journal of Applied Remote Sensing, vol. 13, issue 1, pp. 017501, 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.
2020
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.
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.
Angal, A., X. Xiong, and A. Shrestha, "Cross-Calibration of MODIS Reflective Solar Bands With Sentinel 2A/2B MSI Instruments", IEEE Transactions on Geoscience and Remote Sensing, vol. 58, issue 7, pp. 5000-5007, 2020.
Twedt, K., A. Angal, and X. Xiong, "Effects of out-of-band and time-varying relative spectral response on the calibration of MODIS reflective solar bands", Journal of Applied Remote Sensing, issue 14 (2), pp. 024523, 2020.
Xiong, X., A. Angal, Y. Li, and K. Twedt, "Improvements of on-orbit characterization of Terra MODIS short-wave infrared spectral bands out-of-band responses", Journal of Applied Remote Sensing, vol. 14, issue 4, pp. 047503, 2020.
Xiong, X., A. Angal, T. Chang, K. Chiang, N. Lei, Y. Li, J. Sun, K. Twedt, and A. Wu, "MODIS and VIIRS Calibration and Characterization in Support of Producing Long-Term High-Quality Data Products", Remote Sensing, vol. 12, issue 19, pp. 3167, 2020.
Mu, Q., A. Angal, K. Twedt, A. Wu, and X. Xiong, "MODIS detector differences using deep convective clouds and desert targets", Proc. of SPIE - Sensors, Systems, and Next-Generation Satellites XXIV, vol. 11530, pp. 115301A, 2020.
Sun, J., X. Xiong, A. Angal, and T. Wilson, "MODIS reflective solar bands lunar calibration update and improvements", Proc. of SPIE - Sensors, Systems, and Next-Generation Satellites XXIV, vol. 11530, pp. 115301C, 2020.
Aldoretta, E., A. Angal, K. Twedt, H. Chen, Y. Li, D. Link, Q. Mu, K. Vermeesch, and X. Xiong, " The MODIS RSB calibration and look-up table delivery process for collection 6 and 6.1", Proc. SPIE - Earth Observing Systems XXV, vol. 11501, pp. 115011Q, 2020.
Angal, A., X. Geng, X. Xiong, K. Twedt, A. Wu, D. Link, and E. Aldoretta, "On-Orbit Calibration of Terra MODIS VIS Bands Using Polarization-Corrected Desert Observations", IEEE Transactions on Geoscience and Remote Sensing, vol. 58, issue 8, pp. 5428-5439, 2020.
Wilson, T., A. Angal, and X. Xiong, "Orbital Path and Spacecraft Attitude Correction for the MODIS Lunar Spatial Characterization", IEEE Transactions on Geoscience and Remote Sensing, vol. 58, issue 2, pp. 1063-1073, 2020.
Bhatt, R., D. R. Doelling, A. Angal, X. Xiong, C. O. Haney, B. Scarino, A. Wu, and A. Gopalan, "Response Versus Scan-Angle Assessment of MODIS Reflective Solar Bands in Collection 6.1 Calibration", IEEE Transactions on Geoscience and Remote Sensing, vol. 58, issue 4, pp. 2276-2289, 2020.
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", Journal of Applied Remote Sensing, vol. 14(3), pp. 037501, 2020.
2021
Angal, A., X. Xiong, K. Thome, and B. Wenny, "Cross-Calibration of Terra and Aqua MODIS Using RadCalNet", IEEE Geoscience and Remote Sensing Letters, vol. 18, issue 2, pp. 188-192, 2021.
Angal, A., C. Bruegge, X. Xiong, and A. Wu, "Intercalibration of the reflective solar bands of MODIS and MISR instruments on the Terra platform", Proc. SPIE - Earth Observing Systems XXVI, vol. 11829, pp. 118291B, 2021.
Chen, H., K. Twedt, K. Vermeesch, E. Aldoretta, A. Angal, and X. Xiong, "MODIS reflective solar band calibration improvements using pseudo-invariant desert targets", Proc. SPIE - Earth Observing Systems XXVI, vol. 11829, pp. 118290Z, 2021.
Twedt, K., E. Aldoretta, A. Angal, H. Chen, X. Geng, Y. Li, Q. Mu, K. Vermeesch, and X. Xiong, "MODIS reflective solar bands calibration improvements for Collection 7", Proc. SPIE 11858, Sensors, Systems, and Next-Generation Satellites XXV, pp. 118580S, 2021.
Wu, A., A. Angal, and X. Xiong, "Tracking on-orbit changes in response versus scan angle for MODIS reflective solar bands using Dome C", Proc. SPIE - Earth Observing Systems XXVI, pp. 1182910, 2021.