| Title: | Physical Scientist |
|---|---|
| Affiliation: | NASA |
| Contact: |
E-mail Office Phone: 301-614-5942 Fax: 301-614--6695 |
James J. Butler received the B.S. degree in physical chemistry from the University of Notre Dame, Notre Dame, IN, in 1977 and the Ph.D. degree in physical chemistry from the University of North Carolina at Chapel Hill in 1982. He is currently an optical physicist in the Code 614.4 Biospheric Sciences Branch at NASA's Goddard Space Flight Center (GSFC), where he has been a research scientist since 1984. Since January 1995 and January 2003, he has performed the duties of EOS Calibration Scientist and of NASA’s representative to the NPOESS Joint Agency Requirements Group (JARG), respectively. Since June 2004, he has performed the duties of NASA’s Deputy Project Scientist for Instruments and Calibration within the NPOESS Preparatory Project (NPP). He also manages the NASA/GSFC diffuser calibration and radiometric calibration facilities. His previous research experience at NASA includes ground-based and balloon-borne lidar for the detection of stratospheric molecular and radical species and laser-induced fluorescence of molecules and radicals. As a research associate at the National Institute of Science and Technology (NIST), he conducted state-of-the-art measurements of the ionization and dissociation of state selected molecules, ions and radicals.
PROFESSIONAL EXPERIENCE:
J.J. Butler, R.A. Barnes, and B.C. Johnson, “The Calibration and Characterization of Earth Remote Sensing and Environmental Monitoring Instruments,” Chapter 10 in The Practice of Optical Radiometry, Academic Press, pp. 453-534 (2005)
Butler, J., S.J. Janz, B.C. Johnson, R.D. Saunders, J.W. Cooper, M.G. Kowalewski, and R.A. Barnes (2008). Calibration of a radiance standard for the NPP/OMPS instrument. In R. Meynart, S.P. Neeck, H. Shimoda, S. Habib (Ed.), Sensors, Systems, and Next Generation Satellites XII Proc. SPIE Int. Soc. Opt. Eng.
10.1117/12/800194
Georgiev, G., and J. Butler (2008). Laboratory-based bidirectional reflectance distribution functions of radiometric tarps. Appl. Opt., 47(18), 3313-3323
10.1364/AO.47.003313
Georgiev, G., C.K. Gatebe, J. Butler, and M.D. King (2008). BRDF of Salt Pan Regolith Samples. Proc. IGARSS, 4, IV-573 - IV-576
10.1109/IGARSS.2008.4779786
Georgiev, G., and J. Butler (2008). BRDF study of gray-scale Spectralon. In, Earth Observing Systems XIII San Diego, California: Proc. SPIE Int. Soc. Opt. Eng.
Barnes, R., and J. Butler (2007). Modeling spectral effects in Earth-observing satellite instruments. Proc. SPIE Int. Soc. Opt. Eng., 6744, 21 pp
Barnes, R., S.W. Brown, K.R. Lykke, G.T. Fraser, and J. Butler (2007). System-level pre-launch calibration of onboard solar diffusers. Proc. SPIE Int. Soc. Opt. Eng., 6677, 15 pp
Butler, J., B.C. Johnson, J.P. Rice, S.W. Brown, and R.A. Barnes (2007). Validation of radiometric standards for the laboratory calibration of reflected-solar Earth-observing satellite instruments. Proc. SPIE Int. Soc. Opt. Eng., 6677, 13 pp
Gatebe, C.K., J. Butler, J.W. Cooper, M. Kowalewski, and M.D. King (2007). Characterization of errors in the use of integrating-sphere systems in the calibration of scanning radiometers. Applied Optics, 46(31), 7640-7651
Georgiev, G., and J. Butler (2007). Long-term calibration monitoring of Spectralon diffusers BRDF in the air-ultraviolet. Applied Optics, 46(32), 7892-7899
Oudrari, H., X. Xiong, J. Butler, S. Xiong, and N. Che (2007). Sensitivity Study for Sensor Optical and Electric Crosstalk Based on Spectral Measurements: An Approach to Developmental Sensors Using Sensors Such As MODIS. Proc. IGARSS, 2856-2859
Xiong, X., J. Butler, W.L. Barnes, and B. Guenther (2007). Sensor On-orbit Calibration and Characterization Using Spacecraft Maneuvers. Proc. IGARSS, 2256-2259
Barnes, R., J.W. Cooper, J.E. Marketon, S.W. Brown, B.C. Johnson, and J. Butler (2006). Bandwidth and spectral stray light effects in the NASA GSFC Radiometric Calibration Facility primary transfer radiometer. Proc. SPIE Int. Soc. Opt. Eng., 6296, 14 pp
Georgiev, G., C.K. Gatebe, J. Butler, and M.D. King (2006). Comparison between laboratory and airborne BRDF measurements for remote sensing. Proc. SPIE Int. Soc. Opt. Eng., 6296, 10 pp
Butler, J., R.A. Barnes, and B.C. Johnson (2005). The Calibration and Characterization of Earth Remote Sensing and Environmental Monitoring Instruments. The Practice of Optical Radiometry, Chapter 10, 453-534
Georgiev, G., and J. Butler (2005). Bidirectional reflectance distribution function and directional-hemispherical reflectance of a martian regolith simulant. Opt. Eng., 44(3), 11 pp
Georgiev, G., and J. Butler (2005). The effect of speckle on BRDF measurements. Proc. SPIE, 5882(588203), 21-32
Patt, F., R. Eplee, R.A. Barnes, G. Meister, and J. Butler (2005). Use of the moon as a calibration reference for NPP VIIRS. Proc. SPIE Int. Soc. Opt. Eng., 5882, 385-396
Barnes, R., R.E. Eplee Jr., F. Patt, H.H. Kieffer, T.C. Stone, G. Meister, J. Butler, and C.R. McClain (2004). Comparison of SeaWiFS measurements of the Moon with the U.S. Geological Survey lunar model. Appl. Opt., 43(31), 5838-5854
Butler, J., G. Meister, F. Patt, and R.A. Barnes (2004). Use of the Moon as a reference for satellite-based climate change measurements. Proc. SPIE Int. Soc. Opt. Eng., 5570, 328-341
Butler, J., S.W. Brown, R.D. Saunders, B.C. Johnson, S.F. Biggar, E.F. Zalewski, B.L. Markham, P.N. Gracey, J.B. Young, and R.A. Barnes (2003). Radiometric measurement comparison on the integrating sphere source used to calibrate the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Landsat 7 Enhanced Thematic Mapper Plus (ETM+). J. Res. Nat'l Inst. Standards Tech., 108(3), 199-228
Butler, J., and R.A. Barnes (2003). The use of transfer radiometers in validating the visible to shortwave infrared calibrations of radiance sources used by instruments in NASA's Earth Observing System. Metrologia, 40(1), S70-S77
Johnson, C.B., S.W. Brown, K.R. Lykke, C.E. Gibson, G. Fargion, G. Meister, S. Hooker, B.L. Markham, and J. Butler (2003). Comparison of cryogenic radiometry and thermal radiometry calibrations at NIST using multi-channel filter radiometers. Metrologia, 40, S216-S219