Dr. Larry D. Travis

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Dr. Larry D. Travis

  • 212.678.5599
  • NASA GISS
  • 2880 Broadway
  • New York , NY 10025
  • Employer: Science Collaborator
  • Brief Bio

    Larry Travis is currently Associate Chief of the Goddard Institute for Space Studies (GISS) in the Earth Sciences Division of the Science and Exploration Directorate.  Having joined GISS as a civil servant in 1978, his research has emphasized remote sensing of clouds and aerosols in planetary atmospheres and analysis and interpretation of such observations.  He served as Principal Investigator for the Cloud Photopolarimeter Instrument on the Pioneer Venus Orbiter Mission and as Co-Investigator for the Photopolarimeter/Radiometer Instrument on the Galileo Orbiter Mission.  He received B.A. and M.S. degrees in Astronomy at the University of Iowa and Ph.D. in Astronomy at The Pennsylvania State University.

    Research Interests

    Remote sensing of planetary atmospheres; interpretation of remote sensing observations of polarization; radiative transfer, convective transport, single and multiple scattering theory

    Positions/Employment

    1987 - Present

    Associate Chief, Goddard Institute for Space Studies

    NASA Goddard Space Flight Center, New York, NY 10025
    1978 - 1987

    Physical Scientist, Goddard Institute for Space Studies

    NASA Goddard Space Flight Center, New York, NY 10025
    1977 - 1978

    Member Technical Staff, Sigma Data Services at GISS

    Sigma Data Services, New York, NY 10025
    1974 - 1977

    Member Technical Staff, GTE Information Services at GISS

    GTE Information Services, New York, NY 10025
    1973 - 1974

    Member Technical Staff, Computer Sciences Corp. at GISS

    Computer Sciences Corp., New York, NY 10025
    1971 - 1973

    Assistant Professor of Physics

    The Pennsylvania State University, Worthington Scranton, Dunsmore, PA

    Teaching Experience

    Assistant Professor, Department of Physics, The Pennsylvania State University, Worthington Scranton Campus, Dunsmore, PA    September 1971 - June 1973 

    Education

    B.A. with distinction (Astronomy and Mathematics), University of Iowa, 1965; M.S. in Astronomy, University of Iowa, 1967; Ph.D. in Astronomy, The Pennsylvania State University, 1971

    Professional Societies

    American Astronomical Society, 1967 - Present
    American Geophysical Union, 1968 - Present
    American Association for the Advancement of Science, 1973 - Present

    Awards

    NASA Exceptional Scientific Achievement Medal, 1980

    Publications

    Refereed

    Mishchenko, M. I., L. Liu, I. V. Geogdzhayev, et al. J. Li, B. E. Carlson, B. Lacis, B. Lacis, and L. D. Travis. 2012. "Aerosol retrievals from channel-1 and -2 AVHRR radiances: Long-term trends updated and revisited." J Quant Spectrosc Radiat Transfer, 113 (15): 1974-1980 [10.1016/j.jqsrt.2012.05.006]

    Chowdhary, J., B. Cairns, F. Waquet, et al. K. Knobelspiesse, M. Ottaviani, J. Redemann, L. Travis, and M. Mishchenko. 2012. "Sensitivity of multiangle, multispectral polarimetric remote sensing over open oceans to water-leaving radiance: Analyses of RSP data acquired during the MILAGRO campaign." Remote Sens Environ, 118: 284-308 [10.1016/j.rse.2011.11.003]

    Mishchenko, M. I., V. P. Tishkovets, L. D. Travis, et al. B. Cairns, J. M. Dlugach, L. Liu, V. K. Rosenbush, and N. N. Kiselev. 2011. "Electromagnetic scattering by a morphologically complex object: Fundamental concepts and common misconceptions." J. Quant. Spectrosc. Radiat. Transfer, 112 (4): 671-692 [10.1016/j.jqsrt.2010.03.016]

    Mishchenko, M. I., L. D. Travis, and D. W. Mackowski. 2010. "T-matrix method and its applications to electromagnetic scattering by particles: A current perspective." J Quant Spectrosc Radiat Transfer, 111 (11): 1700-1703 [10.1016/j.jqsrt.2010.01.030]

    Mishchenko, M. I., L. Liu, L. D. Travis, B. Cairns, and A. A. Lacis. 2010. "Toward unified satellite climatology of aerosol properties: 3 MODIS versus MISR versus AERONET." J Quant Spectrosc Radiat Transfer, 111 (4): 540-552 [10.1016/j.jqsrt.2009.11.003]

    Waquet, F., B. Cairns, K. Knobelspiesse, et al. J. Chowdhary, L. D. Travis, B. Schmid, and M. I. Mishchenko. 2009. "Polarimetric remote sensing of aerosols over land." J. Geophys. Res., 114 (D1): D01206 [10.1029/2008JD010619]

    Mishchenko, M. I., I. V. Geogdzhayev, L. Liu, et al. A. A. Lacis, B. Cairns, and L. D. Travis. 2009. "Toward unified satellite climatology of aerosol properties: What do fully compatible MODIS and MISR aerosol pixels tell us?" J Quant Spectrosc Radiat Transfer, 110 (6-7): 402-408 [10.1016/j.jqsrt.2009.01.007]

    Mishchenko, M. I., and L. D. Travis. 2008. "Gustav Mie and the Evolving Discipline of Electromagnetic Scattering by Particles." Bull. Amer. Meteorol. Soc., 89 (12): 1853-1861 [10.1175/2008BAMS2632.1]

    Mishchenko, M. I., I. V. Geogdzhayev, W. B. Rossow, et al. B. Cairns, B. E. Carlson, A. A. Lacis, L. Liu, and L. D. Travis. 2007. "Long-Term Satellite Record Reveals Likely Recent Aerosol Trend." Science, 315 (5818): 1543-1543 [10.1126/science.1136709]

    Mishchenko, M. I., B. Cairns, G. Kopp, et al. C. F. Schueler, B. A. Fafaul, J. E. Hansen, R. J. Hooker, T. Itchkawich, H. B. Maring, and L. D. Travis. 2007. "Accurate Monitoring of Terrestrial Aerosols and Total Solar Irradiance: Introducing the Glory Mission." Bulletin of the American Meteorological Society, 88 (5): 677-691 [10.1175/BAMS-88-5-677]

    Mishchenko, M. I., I. V. Geogdzhayev, B. Cairns, et al. B. E. Carlson, J. Chowdhary, A. A. Lacis, L. Liu, W. B. Rossow, and L. D. Travis. 2007. "Past, present, and future of global aerosol climatologies derived from satellite observations: A perspective." J Quant Spectrosc Radiat Transfer, 106 (1-3): 325-347 [10.1016/j.jqsrt.2007.01.007]

    Liu, L., M. I. Mishchenko, B. Cairns, B. E. Carlson, and L. D. Travis. 2006. "Modeling single-scattering properties of small cirrus particles by use of a size-shape distribution of ice spheroids and cylinders." J Quant Spectrosc Radiat Transfer, 101 (3): 488-497 [10.1016/j.jqsrt.2006.02.040]

    Chowdhary, J., M. I. Mishchenko, and L. D. Travis. 2006. "Contribution of water-leaving radiances to multiangle, multispectral polarimetric observations over the open ocean: bio-optical model results for case 1 waters." Applied Optics, 45 (22): 5542 [10.1364/AO.45.005542]

    Mishchenko, M. I., B. Cairns, J. Chowdhary, et al. I. V. Geogdzhayev, L. Liu, and L. D. Travis. 2005. "Remote sensing of terrestrial tropospheric aerosols from aircraft and satellites." J Phys Conf Series, 6: 73-89 [10.1088/1742-6596/6/1/005]

    Rathbun, J. A., J. R. Spencer, T. Z. Tamppari, et al. T. Z. Tamppari, L. Barnard, and L. D. Travis. 2004. "Mapping of Io's thermal radiation by the Galileo photopolarimeter–radiometer (PPR) instrument." Icarus, 169 (1): 127-139 [10.1016/j.icarus.2003.12.021]

    Mishchenko, M. I., L. Liu, L. D. Travis, and A. A. Lacis. 2004. "Scattering and radiative properties of semi-external versus external mixtures of different aerosol types." J Quant Spectrosc Radiat Transfer, 88 (1-3): 139-147 [10.1016/j.jqsrt.2003.12.032]

    Mishchenko, M. I., B. Cairns, J. E. Hansen, et al. L. D. Travis, R. Burg, Y. J. Kaufman, J. V. Martins, and E. P. Shettle. 2004. "Monitoring of aerosol forcing of climate from space: Analysis of measurement requirements." J Quant Spectrosc Radiat Transfer, 88 (1-3): 149-161 [10.1016/j.jqsrt.2004.03.030]

    Jiang, Y., Y. L. Yung, S. P. Sander, and L. D. Travis. 2004. "Modeling of atmospheric radiative transfer with polarization and its application to the remote sensing of tropospheric ozone." J Quant Spectrosc Radiat Transfer, 84 (2): 169-179 [10.1016/S0022-4073(03)00140-7]

    Diner, D. J., T. P. Ackerman, T. L. Anderson, et al. J. Bosenberg, A. J. Braverman, R. J. Charlson, W. D. Collins, R. Davies, B. N. Holben, C. A. Hostetler, R. A. Kahn, J. V. Martonchik, R. T. Menzies, M. A. Miller, J. A. Ogren, J. E. Penner, P. J. Rasch, S. E. Schwartz, J. H. Seinfeld, G. L. Stephens, O. Torres, L. D. Travis, B. A. Wielicki, and B. Yu. 2004. "PARAGON: An Integrated Approach for Characterizing Aerosol Climate Impacts and Environmental Interactions." Bull Amer Meteorol Soc, 85 (10): 1491-1501 [10.1175/BAMS-85-10-1491]

    Diner, D. J., R. T. Menzies, R. A. Kahn, et al. T. L. Anderson, J. Bosenberg, R. J. Charlson, B. N. Holben, C. A. Hostetler, M. A. Miller, J. A. Ogren, G. L. Stephens, O. Torres, B. A. Wielicki, P. J. Rasch, L. D. Travis, and W. D. Collins. 2004. "Using the PARAGON Framework to Establish an Accurate, Consistent, and Cohesive Long-Term Aerosol Record." Bulletin of the American Meteorological Society, 85 (10): 1535-1548 [10.1175/BAMS-85-10-1535]

    Chowdhary, J., B. Cairns, and L. D. Travis. 2002. "Case studies of aerosol retrievals over the ocean from multiangle, multispectral photopolarimetric remote sensing data." J Atmos Sci, 59 (3): 383-397 [10.1175/1520-0469(2002)059<0383:CSOARO>2.0.CO;2]

    Mishchenko, M. I., L. D. Travis, and A. A. Lacis. 2002. "Scattering, Absorption, and Emission of Light by Small Particles." Cambridge, UK: Cambridge University Press.

    Braak, C. J., J. F. de Haan, J. W. Hovenier, and L. D. Travis. 2002. "Galileo Photopolarimetry of Jupiter at 678.5 nm." Icarus, 157 (2): 401-418 [10.1006/icar.2002.6846]

    Braak, C. J., J. F. de Haan, J. W. Hovenier, and L. D. Travis. 2002. "Spatial and temporal variations of Venus haze properties obtained from Pioneer Venus Orbiter polarimetry." J. Geophys. Res., 107 (E5): 5029 [10.1029/2001JE001502]

    Chowdhary, J., B. Cairns, M. Mishchenko, and L. Travis. 2001. "Retrieval of aerosol properties over the ocean using multispectral and multiangle Photopolarimetric measurements from the Research Scanning Polarimeter." Geophys. Res. Lett., 28 (2): 243-246 [10.1029/2000GL011783]

    Braak, C. J., J. F. de Haan, C. V. van der Mee, J. W. Hovenie, and L. D. Travis. 2001. "Parameterized scattering matrices for small particles in planetary atmospheres." J Quant Spectrosc Radiat Transfer, 69 (5): 585-604 [10.1016/S0022-4073(00)00103-5]

    Spencer, J. R., J. A. Rathbun, L. D. Travis, et al. L. K. Tamppari, L. Barnard, T. Z. Martin, and A. S. McEwen. 2000. "Io's Thermal Emission from the Galileo Photopolarimeter- Radiometer." Science, 288 (5469): 1198-1201 [10.1126/science.288.5469.1198]

    Kawabata, K., O. Sato, and L. D. Travis. 2000. "A new approach to computing theoretical polarization curves along the low latitude regions of a planetary disk observed at small phase angles." Appl Math Comput, 116 (1-2): 115-132 [10.1016/S0096-3003(99)00199-X]

    Mishchenko, M. I., and L. D. Travis. 1998. "Capabilities and limitations of a current FORTRAN implementation of the T-matrix method for randomly oriented, rotationally symmetric scatterers." J Quant Spectrosc Radiat Transfer, 60 (3): 309-324 [10.1016/S0022-4073(98)00008-9]

    Knibbe, W. J., J. F. Haan, J. W. Hovenier, and L. D. Travis. 1998. "Analysis of temporal variations of the polarization of Venus observed by Pioneer Venus Orbiter." J Geophys Res, 103 (E4): 8557-8574 [10.1029/98JE03558]

    Mishchenko, M. I., L. D. Travis, W. B. Rossow, et al. B. Cairns, B. E. Carlson, and Q. Han. 1997. "Retrieving CCN column density from single-channel measurements of reflected sunlight over the ocean: A sensitivity study." Geophysical Research Letters, 24 (21): 2655-2658 [10.1029/97GL02783]

    Mishchenko, M. I., and L. D. Travis. 1997. "Satellite retrieval of aerosol properties over the ocean using measurements of reflected sunlight: Effect of instrumental errors and aerosol absorption." J. Geophys. Res., 102 (D12): 13543-13553 [10.1029/97JD01124]

    Mishchenko, M. I., and L. D. Travis. 1997. "Satellite retrieval of aerosol properties over the ocean using polarization as well as intensity of reflected sunlight." J. Geophys. Res., 102 (D14): 16989-17013 [10.1029/96JD02425]

    Mishchenko, M. I., L. D. Travis, R. A. Kahn, and R. A. West. 1997. "Modeling phase functions for dustlike tropospheric aerosols using a shape mixture of randomly oriented polydisperse spheroids." J. Geophys. Res., 102 (D14): 16831-16847 [10.1029/96JD02110]

    Knibbe, W. J., J. F. de Haan, J. W. Hovenier, and L. D. Travis. 1997. "A biwavelength analysis of Pioneer Venus polarization observations." J Geophys Res, 102 (E5): 10,945-10,957 [10.1029/97JE00312]

    Sato, M., L. D. Travis, and K. Kawabata. 1996. "Photopolarimetry Analysis of the Venus Atmosphere in Polar Regions." Icarus, 124 (2): 569-585 [10.1006/icar.1996.0231]

    Orton, G. S., J. R. Spencer, L. D. Travis, T. Z. Martin, and L. K. Tamppari. 1996. "Galileo Photopolarimeter-Radiometer Observations of Jupiter and the Galilean Satellites." Science, 274 (5286): 389-391 [10.1126/science.274.5286.389]

    Mishchenko, M. I., L. D. Travis, and A. Macke. 1996. "Scattering of light by polydisperse, randomly oriented, finite circular cylinders." Applied Optics, 35 (24): 4927 [10.1364/AO.35.004927]

    Mishchenko, M. I., L. D. Travis, and D. W. Mackowski. 1996. "T-matrix computations of light scattering by nonspherical particles: A review." Journal of Quantitative Spectroscopy and Radiative Transfer, 55 (5): 535-575 [10.1016/0022-4073(96)00002-7]

    Martin, T. Z., G. S. Orton, L. D. Travis, L. K. Tamppari, and I. Claypool. 1995. "Observation of Shoemaker-Levy Impacts by the Galileo Photopolarimeter Radiometer." Science, 268 (5219): 1875-1879 [10.1126/science.268.5219.1875]

    Mishchenko, M. I., A. A. Lacis, B. E. Carlson, and L. D. Travis. 1995. "Nonsphericity of dust-like tropospheric aerosols: Implications for aerosol remote sensing and climate modeling." Geophysical Research Letters, 22 (9): 1077-1080 [10.1029/95GL00798]

    Mishchenko, M. I., D. W. Mackowski, and L. D. Travis. 1995. "Scattering of light by bispheres with touching and separated components." Applied Optics, 34 (21): 4589 [10.1364/AO.34.004589]

    Hansen, J., W. Rossow, B. Carlson, et al. A. Lacis, L. Travis, A. Del Genio, I. Fung, B. Cairns, M. Mishchenko, and I. Sato. 1995. "Low-cost long-term monitoring of global climate forcings and feedbacks." Climatic Change, 31 (2-4): 247-271 [10.1007/BF01095149]

    Mishchenko, M. I., and L. D. Travis. 1994. "T-matrix computations of light scattering by large spheroidal particles." Opt Comm, 109: 16-21.

    Penner, J. E., R. J. Charlson, J. M. Hales, et al. N. S. Laulainen, R. Leifer, T. Novakov, J. Ogren, L. F. Radke, S. E. Schwartz, and L. Travis. 1994. "Quantifying and minimizing uncertainty of climate forcing by anthropogenic aerosols." Bull Amer Meteorol Soc, 75: 375-400.

    Mishchenko, M. I., A. A. Lacis, and L. D. Travis. 1994. "Errors induced by the neglect of polarization in radiance calculations for rayleigh-scattering atmospheres." Journal of Quantitative Spectroscopy and Radiative Transfer, 51 (3): 491-510 [10.1016/0022-4073(94)90149-X]

    Mishchenko, M. I., and L. D. Travis. 1994. "Light scattering by polydisperse, rotationally symmetric nonspherical particles: Linear polarization." Journal of Quantitative Spectroscopy and Radiative Transfer, 51 (5): 759-778 [10.1016/0022-4073(94)90130-9]

    Mishchenko, M. I., and L. D. Travis. 1994. "Light scattering by polydispersions of randomly oriented spheroids with sizes comparable to wavelengths of observation." Applied Optics, 33 (30): 7206 [10.1364/AO.33.007206]

    Russell, E. E., F. G. Brown, R. A. Chandos, et al. W. C. Fincher, L. F. Kubel, A. A. Lacis, and L. D. Travis. 1992. "Galileo Photopolarimeter/Radiometer experiment." Space Sci Rev, 60 (1-4): 531-563 [10.1007/BF00216867]

    Hartley, K. K., A. R. Wolff, and L. D. Travis. 1989. "Croconic acid: An absorber in the Venus clouds?" Icarus, 77 (2): 382-390 [10.1016/0019-1035(89)90095-X]

    Allison, M. D., and L. D. Travis. 1986. "The Jovian Atmospheres." NASA CP-2441:

    Hansen, J., G. L. Russell, D. H. Rind, et al. P. Stone, A. A. Lacis, S. Lebedeff, R. A. Ruedy, and L. D. Travis. 1983. "Efficient three-dimensional global models for climate studies: Models I and II." M. Weather Rev., 111 (4): 609-662 [10.1175/1520-0493(1983)111<0609:ETDGMF>2.0.CO;2]

    Esposito, L. W., and L. D. Travis. 1982. "Polarization studies of the Venus UV contrasts: Cloud height and haze variability." Icarus, 51 (2): 374-390 [10.1016/0019-1035(82)90090-2]

    Pollack, J. B., O. B. Toon, R. C. Whitten, et al. R. Boese, B. Ragent, M. Tomasko, L. Esposito, L. Travis, and D. Wiedman. 1980. "Distribution and source of the UV absorption in Venus' atmosphere." J. Geophys. Res., 85 (A13): 8141-8150 [10.1029/JA085iA13p08141]

    Kawabata, K., D. L. Coffeen, J. E. Hansen, et al. W. A. Lane, M. Sato, and L. D. Travis. 1980. "Cloud and haze properties from Pioneer Venus polarimetry." J. Geophys. Res., 85 (A13): 8129-8140 [10.1029/JA085iA13p08129]

    Knollenberg, R., L. Travis, M. Tomasko, et al. P. Smith, B. Ragent, L. Esposito, D. McClesse, J. Martonchik, and R. Beer. 1980. "The clouds of Venus: A synthesis report." J. Geophys. Res., 85 (A13): 8059-8081 [10.1029/JA085iA13p08059]

    Rossow, W. B., A. D. Del Genio, S. S. Limaye, L. D. Travis, and P. H. Stone. 1980. "Cloud morphology and motions from Pioneer Venus images." J. Geophys. Res., 85 (A13): 8107-8128 [10.1029/JA085iA13p08107]

    Pollack, J. B., B. Ragent, R. Boese, et al. M. G. Tomasko, J. Blamont, R. G. Knollenberg, L. W. Esposito, I. A. Stewart, and L. Travis. 1979. "Nature of the Ultraviolet Absorber in the Venus Clouds: Inferences Based on Pioneer Venus Data." Science, 205 (4401): 76-79 [10.1126/science.205.4401.76]

    Travis, L. D., D. L. Coffeen, J. E. Hansen, et al. K. Kawabata, A. A. Lacis, W. A. Lane, S. S. Limaye, and P. H. Stone. 1979. "Orbiter Cloud Photopolarimeter Investigation." Science, 203 (4382): 781-785 [10.1126/science.203.4382.781]

    Travis, L. D., D. L. Coffeen, A. D. Del Genio, et al. J. E. Hansen, K. Kawabata, A. A. Lacis, W. A. Lane, S. S. Limaye, W. B. Rossow, and P. H. Stone. 1979. "Cloud Images from the Pioneer Venus Orbiter." Science, 205 (4401): 74-76 [10.1126/science.205.4401.74]

    Travis, L. D. 1978. "Nature of the atmospheric dynamics on Venus from power spectrum analysis of Mariner 10 images." J. Atmos. Sci., 35: 1584-1595.

    Schubert, G., C. C. Counselman, J. Hansen, et al. S. S. Limaye, G. Pettengill, A. Seiff, I. I. Shapiro, V. E. Suomi, F. Taylor, L. Travis, R. Woo, and R. E. Young. 1977. "Dynamics, winds, circulation and turbulence in the atmosphere of venus (Chapter 7)." Space Sci. Rev., 20 (4): 357-387 [10.1007/BF02186459]

    Travis, L. D. 1975. "On the origin of ultraviolet contrasts on Venus." J. Atmos. Sci., 32: 1190-1200.

    Hansen, J. E., and L. D. Travis. 1974. "Light scattering in planetary atmospheres." Space Sci. Rev., 16 (4): 527-610 [10.1007/BF00168069]

    Travis, L. D., and S. Matsushima. 1968. "Radiative Opacity in Stellar Atmospheres. I. Metal Absorption Coefficients." ApJL, 154: 689-714 [10.1086/149790]

    Non-Refereed

    Mishchenko, M. I., L. D. Travis, and A. A. Lacis. 2006. "Multiple Scattering of Light by Particles: Radiative Transfer and Coherent Backscattering." Cambridge University Press.

    Brief Bio

    Larry Travis is currently Associate Chief of the Goddard Institute for Space Studies (GISS) in the Earth Sciences Division of the Science and Exploration Directorate.  Having joined GISS as a civil servant in 1978, his research has emphasized remote sensing of clouds and aerosols in planetary atmospheres and analysis and interpretation of such observations.  He served as Principal Investigator for the Cloud Photopolarimeter Instrument on the Pioneer Venus Orbiter Mission and as Co-Investigator for the Photopolarimeter/Radiometer Instrument on the Galileo Orbiter Mission.  He received B.A. and M.S. degrees in Astronomy at the University of Iowa and Ph.D. in Astronomy at The Pennsylvania State University.

    Publications

    Refereed

    Mishchenko, M. I., L. Liu, I. V. Geogdzhayev, et al. J. Li, B. E. Carlson, B. Lacis, B. Lacis, and L. D. Travis. 2012. "Aerosol retrievals from channel-1 and -2 AVHRR radiances: Long-term trends updated and revisited." J Quant Spectrosc Radiat Transfer 113 (15): 1974-1980 [10.1016/j.jqsrt.2012.05.006]

    Chowdhary, J., B. Cairns, F. Waquet, et al. K. Knobelspiesse, M. Ottaviani, J. Redemann, L. Travis, and M. Mishchenko. 2012. "Sensitivity of multiangle, multispectral polarimetric remote sensing over open oceans to water-leaving radiance: Analyses of RSP data acquired during the MILAGRO campaign." Remote Sens Environ 118 284-308 [10.1016/j.rse.2011.11.003]

    Mishchenko, M. I., V. P. Tishkovets, L. D. Travis, et al. B. Cairns, J. M. Dlugach, L. Liu, V. K. Rosenbush, and N. N. Kiselev. 2011. "Electromagnetic scattering by a morphologically complex object: Fundamental concepts and common misconceptions." J. Quant. Spectrosc. Radiat. Transfer 112 (4): 671-692 [10.1016/j.jqsrt.2010.03.016]

    Mishchenko, M. I., L. D. Travis, and D. W. Mackowski. 2010. "T-matrix method and its applications to electromagnetic scattering by particles: A current perspective." J Quant Spectrosc Radiat Transfer 111 (11): 1700-1703 [10.1016/j.jqsrt.2010.01.030]

    Mishchenko, M. I., L. Liu, L. D. Travis, B. Cairns, and A. A. Lacis. 2010. "Toward unified satellite climatology of aerosol properties: 3 MODIS versus MISR versus AERONET." J Quant Spectrosc Radiat Transfer 111 (4): 540-552 [10.1016/j.jqsrt.2009.11.003]

    Waquet, F., B. Cairns, K. Knobelspiesse, et al. J. Chowdhary, L. D. Travis, B. Schmid, and M. I. Mishchenko. 2009. "Polarimetric remote sensing of aerosols over land." J. Geophys. Res. 114 (D1): D01206 [10.1029/2008JD010619]

    Mishchenko, M. I., I. V. Geogdzhayev, L. Liu, et al. A. A. Lacis, B. Cairns, and L. D. Travis. 2009. "Toward unified satellite climatology of aerosol properties: What do fully compatible MODIS and MISR aerosol pixels tell us?" J Quant Spectrosc Radiat Transfer 110 (6-7): 402-408 [10.1016/j.jqsrt.2009.01.007]

    Mishchenko, M. I., and L. D. Travis. 2008. "Gustav Mie and the Evolving Discipline of Electromagnetic Scattering by Particles." Bull. Amer. Meteorol. Soc. 89 (12): 1853-1861 [10.1175/2008BAMS2632.1]

    Mishchenko, M. I., I. V. Geogdzhayev, W. B. Rossow, et al. B. Cairns, B. E. Carlson, A. A. Lacis, L. Liu, and L. D. Travis. 2007. "Long-Term Satellite Record Reveals Likely Recent Aerosol Trend." Science 315 (5818): 1543-1543 [10.1126/science.1136709]

    Mishchenko, M. I., B. Cairns, G. Kopp, et al. C. F. Schueler, B. A. Fafaul, J. E. Hansen, R. J. Hooker, T. Itchkawich, H. B. Maring, and L. D. Travis. 2007. "Accurate Monitoring of Terrestrial Aerosols and Total Solar Irradiance: Introducing the Glory Mission." Bulletin of the American Meteorological Society 88 (5): 677-691 [10.1175/BAMS-88-5-677]

    Mishchenko, M. I., I. V. Geogdzhayev, B. Cairns, et al. B. E. Carlson, J. Chowdhary, A. A. Lacis, L. Liu, W. B. Rossow, and L. D. Travis. 2007. "Past, present, and future of global aerosol climatologies derived from satellite observations: A perspective." J Quant Spectrosc Radiat Transfer 106 (1-3): 325-347 [10.1016/j.jqsrt.2007.01.007]

    Liu, L., M. I. Mishchenko, B. Cairns, B. E. Carlson, and L. D. Travis. 2006. "Modeling single-scattering properties of small cirrus particles by use of a size-shape distribution of ice spheroids and cylinders." J Quant Spectrosc Radiat Transfer 101 (3): 488-497 [10.1016/j.jqsrt.2006.02.040]

    Chowdhary, J., M. I. Mishchenko, and L. D. Travis. 2006. "Contribution of water-leaving radiances to multiangle, multispectral polarimetric observations over the open ocean: bio-optical model results for case 1 waters." Applied Optics 45 (22): 5542 [10.1364/AO.45.005542]

    Mishchenko, M. I., B. Cairns, J. Chowdhary, et al. I. V. Geogdzhayev, L. Liu, and L. D. Travis. 2005. "Remote sensing of terrestrial tropospheric aerosols from aircraft and satellites." J Phys Conf Series 6 73-89 [10.1088/1742-6596/6/1/005]

    Rathbun, J. A., J. R. Spencer, T. Z. Tamppari, et al. T. Z. Tamppari, L. Barnard, and L. D. Travis. 2004. "Mapping of Io's thermal radiation by the Galileo photopolarimeter–radiometer (PPR) instrument." Icarus 169 (1): 127-139 [10.1016/j.icarus.2003.12.021]

    Mishchenko, M. I., L. Liu, L. D. Travis, and A. A. Lacis. 2004. "Scattering and radiative properties of semi-external versus external mixtures of different aerosol types." J Quant Spectrosc Radiat Transfer 88 (1-3): 139-147 [10.1016/j.jqsrt.2003.12.032]

    Mishchenko, M. I., B. Cairns, J. E. Hansen, et al. L. D. Travis, R. Burg, Y. J. Kaufman, J. V. Martins, and E. P. Shettle. 2004. "Monitoring of aerosol forcing of climate from space: Analysis of measurement requirements." J Quant Spectrosc Radiat Transfer 88 (1-3): 149-161 [10.1016/j.jqsrt.2004.03.030]

    Jiang, Y., Y. L. Yung, S. P. Sander, and L. D. Travis. 2004. "Modeling of atmospheric radiative transfer with polarization and its application to the remote sensing of tropospheric ozone." J Quant Spectrosc Radiat Transfer 84 (2): 169-179 [10.1016/S0022-4073(03)00140-7]

    Diner, D. J., T. P. Ackerman, T. L. Anderson, et al. J. Bosenberg, A. J. Braverman, R. J. Charlson, W. D. Collins, R. Davies, B. N. Holben, C. A. Hostetler, R. A. Kahn, J. V. Martonchik, R. T. Menzies, M. A. Miller, J. A. Ogren, J. E. Penner, P. J. Rasch, S. E. Schwartz, J. H. Seinfeld, G. L. Stephens, O. Torres, L. D. Travis, B. A. Wielicki, and B. Yu. 2004. "PARAGON: An Integrated Approach for Characterizing Aerosol Climate Impacts and Environmental Interactions." Bull Amer Meteorol Soc 85 (10): 1491-1501 [10.1175/BAMS-85-10-1491]

    Diner, D. J., R. T. Menzies, R. A. Kahn, et al. T. L. Anderson, J. Bosenberg, R. J. Charlson, B. N. Holben, C. A. Hostetler, M. A. Miller, J. A. Ogren, G. L. Stephens, O. Torres, B. A. Wielicki, P. J. Rasch, L. D. Travis, and W. D. Collins. 2004. "Using the PARAGON Framework to Establish an Accurate, Consistent, and Cohesive Long-Term Aerosol Record." Bulletin of the American Meteorological Society 85 (10): 1535-1548 [10.1175/BAMS-85-10-1535]

    Chowdhary, J., B. Cairns, and L. D. Travis. 2002. "Case studies of aerosol retrievals over the ocean from multiangle, multispectral photopolarimetric remote sensing data." J Atmos Sci 59 (3): 383-397 [10.1175/1520-0469(2002)059<0383:CSOARO>2.0.CO;2]

    Mishchenko, M. I., L. D. Travis, and A. A. Lacis. 2002. "Scattering, Absorption, and Emission of Light by Small Particles."

    Braak, C. J., J. F. de Haan, J. W. Hovenier, and L. D. Travis. 2002. "Galileo Photopolarimetry of Jupiter at 678.5 nm." Icarus 157 (2): 401-418 [10.1006/icar.2002.6846]

    Braak, C. J., J. F. de Haan, J. W. Hovenier, and L. D. Travis. 2002. "Spatial and temporal variations of Venus haze properties obtained from Pioneer Venus Orbiter polarimetry." J. Geophys. Res. 107 (E5): 5029 [10.1029/2001JE001502]

    Chowdhary, J., B. Cairns, M. Mishchenko, and L. Travis. 2001. "Retrieval of aerosol properties over the ocean using multispectral and multiangle Photopolarimetric measurements from the Research Scanning Polarimeter." Geophys. Res. Lett. 28 (2): 243-246 [10.1029/2000GL011783]

    Braak, C. J., J. F. de Haan, C. V. van der Mee, J. W. Hovenie, and L. D. Travis. 2001. "Parameterized scattering matrices for small particles in planetary atmospheres." J Quant Spectrosc Radiat Transfer 69 (5): 585-604 [10.1016/S0022-4073(00)00103-5]

    Spencer, J. R., J. A. Rathbun, L. D. Travis, et al. L. K. Tamppari, L. Barnard, T. Z. Martin, and A. S. McEwen. 2000. "Io's Thermal Emission from the Galileo Photopolarimeter- Radiometer." Science 288 (5469): 1198-1201 [10.1126/science.288.5469.1198]

    Kawabata, K., O. Sato, and L. D. Travis. 2000. "A new approach to computing theoretical polarization curves along the low latitude regions of a planetary disk observed at small phase angles." Appl Math Comput 116 (1-2): 115-132 [10.1016/S0096-3003(99)00199-X]

    Mishchenko, M. I., and L. D. Travis. 1998. "Capabilities and limitations of a current FORTRAN implementation of the T-matrix method for randomly oriented, rotationally symmetric scatterers." J Quant Spectrosc Radiat Transfer 60 (3): 309-324 [10.1016/S0022-4073(98)00008-9]

    Knibbe, W. J., J. F. Haan, J. W. Hovenier, and L. D. Travis. 1998. "Analysis of temporal variations of the polarization of Venus observed by Pioneer Venus Orbiter." J Geophys Res 103 (E4): 8557-8574 [10.1029/98JE03558]

    Mishchenko, M. I., L. D. Travis, W. B. Rossow, et al. B. Cairns, B. E. Carlson, and Q. Han. 1997. "Retrieving CCN column density from single-channel measurements of reflected sunlight over the ocean: A sensitivity study." Geophysical Research Letters 24 (21): 2655-2658 [10.1029/97GL02783]

    Mishchenko, M. I., and L. D. Travis. 1997. "Satellite retrieval of aerosol properties over the ocean using measurements of reflected sunlight: Effect of instrumental errors and aerosol absorption." J. Geophys. Res. 102 (D12): 13543-13553 [10.1029/97JD01124]

    Mishchenko, M. I., and L. D. Travis. 1997. "Satellite retrieval of aerosol properties over the ocean using polarization as well as intensity of reflected sunlight." J. Geophys. Res. 102 (D14): 16989-17013 [10.1029/96JD02425]

    Mishchenko, M. I., L. D. Travis, R. A. Kahn, and R. A. West. 1997. "Modeling phase functions for dustlike tropospheric aerosols using a shape mixture of randomly oriented polydisperse spheroids." J. Geophys. Res. 102 (D14): 16831-16847 [10.1029/96JD02110]

    Knibbe, W. J., J. F. de Haan, J. W. Hovenier, and L. D. Travis. 1997. "A biwavelength analysis of Pioneer Venus polarization observations." J Geophys Res 102 (E5): 10,945-10,957 [10.1029/97JE00312]

    Sato, M., L. D. Travis, and K. Kawabata. 1996. "Photopolarimetry Analysis of the Venus Atmosphere in Polar Regions." Icarus 124 (2): 569-585 [10.1006/icar.1996.0231]

    Orton, G. S., J. R. Spencer, L. D. Travis, T. Z. Martin, and L. K. Tamppari. 1996. "Galileo Photopolarimeter-Radiometer Observations of Jupiter and the Galilean Satellites." Science 274 (5286): 389-391 [10.1126/science.274.5286.389]

    Mishchenko, M. I., L. D. Travis, and A. Macke. 1996. "Scattering of light by polydisperse, randomly oriented, finite circular cylinders." Applied Optics 35 (24): 4927 [10.1364/AO.35.004927]

    Mishchenko, M. I., L. D. Travis, and D. W. Mackowski. 1996. "T-matrix computations of light scattering by nonspherical particles: A review." Journal of Quantitative Spectroscopy and Radiative Transfer 55 (5): 535-575 [10.1016/0022-4073(96)00002-7]

    Martin, T. Z., G. S. Orton, L. D. Travis, L. K. Tamppari, and I. Claypool. 1995. "Observation of Shoemaker-Levy Impacts by the Galileo Photopolarimeter Radiometer." Science 268 (5219): 1875-1879 [10.1126/science.268.5219.1875]

    Mishchenko, M. I., A. A. Lacis, B. E. Carlson, and L. D. Travis. 1995. "Nonsphericity of dust-like tropospheric aerosols: Implications for aerosol remote sensing and climate modeling." Geophysical Research Letters 22 (9): 1077-1080 [10.1029/95GL00798]

    Mishchenko, M. I., D. W. Mackowski, and L. D. Travis. 1995. "Scattering of light by bispheres with touching and separated components." Applied Optics 34 (21): 4589 [10.1364/AO.34.004589]

    Hansen, J., W. Rossow, B. Carlson, et al. A. Lacis, L. Travis, A. Del Genio, I. Fung, B. Cairns, M. Mishchenko, and I. Sato. 1995. "Low-cost long-term monitoring of global climate forcings and feedbacks." Climatic Change 31 (2-4): 247-271 [10.1007/BF01095149]

    Mishchenko, M. I., and L. D. Travis. 1994. "T-matrix computations of light scattering by large spheroidal particles." Opt Comm 109 16-21

    Penner, J. E., R. J. Charlson, J. M. Hales, et al. N. S. Laulainen, R. Leifer, T. Novakov, J. Ogren, L. F. Radke, S. E. Schwartz, and L. Travis. 1994. "Quantifying and minimizing uncertainty of climate forcing by anthropogenic aerosols." Bull Amer Meteorol Soc 75 375-400

    Mishchenko, M. I., A. A. Lacis, and L. D. Travis. 1994. "Errors induced by the neglect of polarization in radiance calculations for rayleigh-scattering atmospheres." Journal of Quantitative Spectroscopy and Radiative Transfer 51 (3): 491-510 [10.1016/0022-4073(94)90149-X]

    Mishchenko, M. I., and L. D. Travis. 1994. "Light scattering by polydisperse, rotationally symmetric nonspherical particles: Linear polarization." Journal of Quantitative Spectroscopy and Radiative Transfer 51 (5): 759-778 [10.1016/0022-4073(94)90130-9]

    Mishchenko, M. I., and L. D. Travis. 1994. "Light scattering by polydispersions of randomly oriented spheroids with sizes comparable to wavelengths of observation." Applied Optics 33 (30): 7206 [10.1364/AO.33.007206]

    Russell, E. E., F. G. Brown, R. A. Chandos, et al. W. C. Fincher, L. F. Kubel, A. A. Lacis, and L. D. Travis. 1992. "Galileo Photopolarimeter/Radiometer experiment." Space Sci Rev 60 (1-4): 531-563 [10.1007/BF00216867]

    Hartley, K. K., A. R. Wolff, and L. D. Travis. 1989. "Croconic acid: An absorber in the Venus clouds?" Icarus 77 (2): 382-390 [10.1016/0019-1035(89)90095-X]

    Allison, M. D., and L. D. Travis. 1986. "The Jovian Atmospheres." NASA CP-2441

    Hansen, J., G. L. Russell, D. H. Rind, et al. P. Stone, A. A. Lacis, S. Lebedeff, R. A. Ruedy, and L. D. Travis. 1983. "Efficient three-dimensional global models for climate studies: Models I and II." M. Weather Rev. 111 (4): 609-662 [10.1175/1520-0493(1983)111<0609:ETDGMF>2.0.CO;2]

    Esposito, L. W., and L. D. Travis. 1982. "Polarization studies of the Venus UV contrasts: Cloud height and haze variability." Icarus 51 (2): 374-390 [10.1016/0019-1035(82)90090-2]

    Pollack, J. B., O. B. Toon, R. C. Whitten, et al. R. Boese, B. Ragent, M. Tomasko, L. Esposito, L. Travis, and D. Wiedman. 1980. "Distribution and source of the UV absorption in Venus' atmosphere." J. Geophys. Res. 85 (A13): 8141-8150 [10.1029/JA085iA13p08141]

    Kawabata, K., D. L. Coffeen, J. E. Hansen, et al. W. A. Lane, M. Sato, and L. D. Travis. 1980. "Cloud and haze properties from Pioneer Venus polarimetry." J. Geophys. Res. 85 (A13): 8129-8140 [10.1029/JA085iA13p08129]

    Knollenberg, R., L. Travis, M. Tomasko, et al. P. Smith, B. Ragent, L. Esposito, D. McClesse, J. Martonchik, and R. Beer. 1980. "The clouds of Venus: A synthesis report." J. Geophys. Res. 85 (A13): 8059-8081 [10.1029/JA085iA13p08059]

    Rossow, W. B., A. D. Del Genio, S. S. Limaye, L. D. Travis, and P. H. Stone. 1980. "Cloud morphology and motions from Pioneer Venus images." J. Geophys. Res. 85 (A13): 8107-8128 [10.1029/JA085iA13p08107]

    Pollack, J. B., B. Ragent, R. Boese, et al. M. G. Tomasko, J. Blamont, R. G. Knollenberg, L. W. Esposito, I. A. Stewart, and L. Travis. 1979. "Nature of the Ultraviolet Absorber in the Venus Clouds: Inferences Based on Pioneer Venus Data." Science 205 (4401): 76-79 [10.1126/science.205.4401.76]

    Travis, L. D., D. L. Coffeen, J. E. Hansen, et al. K. Kawabata, A. A. Lacis, W. A. Lane, S. S. Limaye, and P. H. Stone. 1979. "Orbiter Cloud Photopolarimeter Investigation." Science 203 (4382): 781-785 [10.1126/science.203.4382.781]

    Travis, L. D., D. L. Coffeen, A. D. Del Genio, et al. J. E. Hansen, K. Kawabata, A. A. Lacis, W. A. Lane, S. S. Limaye, W. B. Rossow, and P. H. Stone. 1979. "Cloud Images from the Pioneer Venus Orbiter." Science 205 (4401): 74-76 [10.1126/science.205.4401.74]

    Travis, L. D. 1978. "Nature of the atmospheric dynamics on Venus from power spectrum analysis of Mariner 10 images." J. Atmos. Sci. 35 1584-1595

    Schubert, G., C. C. Counselman, J. Hansen, et al. S. S. Limaye, G. Pettengill, A. Seiff, I. I. Shapiro, V. E. Suomi, F. Taylor, L. Travis, R. Woo, and R. E. Young. 1977. "Dynamics, winds, circulation and turbulence in the atmosphere of venus (Chapter 7)." Space Sci. Rev. 20 (4): 357-387 [10.1007/BF02186459]

    Travis, L. D. 1975. "On the origin of ultraviolet contrasts on Venus." J. Atmos. Sci. 32 1190-1200

    Hansen, J. E., and L. D. Travis. 1974. "Light scattering in planetary atmospheres." Space Sci. Rev. 16 (4): 527-610 [10.1007/BF00168069]

    Travis, L. D., and S. Matsushima. 1968. "Radiative Opacity in Stellar Atmospheres. I. Metal Absorption Coefficients." ApJL 154 689-714 [10.1086/149790]

    Non-Refereed

    Mishchenko, M. I., L. D. Travis, and A. A. Lacis. 2006. "Multiple Scattering of Light by Particles: Radiative Transfer and Coherent Backscattering."

                                                                                                                                                                                            
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