Larry D. Travis
(EMERITUS)
| Email: | larry.d.travis@nasa.gov |
| Phone: | 212.678.5599 |
| Org Code: | 611 |
| Address: |
NASA/GISS Mail Code 611 New York, NY 10025 |
| Employer: | EMERITUS |
Brief Bio
Positions/Employment
Associate Chief, Goddard Institute for Space Studies
NASA Goddard Space Flight Center - New York, NY 10025
1987 - Present
Physical Scientist, Goddard Institute for Space Studies
NASA Goddard Space Flight Center - New York, NY 10025
1978 - 1987
Member Technical Staff, Sigma Data Services at GISS
Sigma Data Services - New York, NY 10025
1977 - 1978
Member Technical Staff, GTE Information Services at GISS
GTE Information Services - New York, NY 10025
1974 - 1977
Member Technical Staff, Computer Sciences Corp. at GISS
Computer Sciences Corp. - New York, NY 10025
1973 - 1974
Assistant Professor of Physics
The Pennsylvania State University, Worthington Scranton - Dunsmore, PA
1971 - 1973
Teaching Experience
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
Publications
Refereed
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
2009. "Polarimetric remote sensing of aerosols over land." J. Geophys. Res. 114 (D1): D01206 [10.1029/2008JD010619] [Journal Article/Letter]
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] [Journal Article/Letter]
2008. "Gustav Mie and the Evolving Discipline of Electromagnetic Scattering by Particles." Bull. Amer. Meteorol. Soc. 89 (12): 1853-1861 [10.1175/2008BAMS2632.1] [Journal Article/Letter]
2007. "Long-Term Satellite Record Reveals Likely Recent Aerosol Trend." Science 315 (5818): 1543-1543 [10.1126/science.1136709] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
2002. "Scattering, Absorption, and Emission of Light by Small Particles." [Book]
2002. "Spatial and temporal variations of Venus haze properties obtained from Pioneer Venus Orbiter polarimetry." J. Geophys. Res. 107 (E5): 5029 [10.1029/2001JE001502] [Journal Article/Letter]
2002. "Galileo Photopolarimetry of Jupiter at 678.5 nm." Icarus 157 (2): 401-418 [10.1006/icar.2002.6846] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
2000. "Io's Thermal Emission from the Galileo Photopolarimeter- Radiometer." Science 288 (5469): 1198-1201 [10.1126/science.288.5469.1198] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
1997. "A biwavelength analysis of Pioneer Venus polarization observations." J Geophys Res 102 (E5): 10,945-10,957 [10.1029/97JE00312] [Journal Article/Letter]
1996. "Photopolarimetry Analysis of the Venus Atmosphere in Polar Regions." Icarus 124 (2): 569-585 [10.1006/icar.1996.0231] [Journal Article/Letter]
1996. "Galileo Photopolarimeter-Radiometer Observations of Jupiter and the Galilean Satellites." Science 274 (5286): 389-391 [10.1126/science.274.5286.389] [Journal Article/Letter]
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] [Journal Article/Letter]
1996. "Scattering of light by polydisperse, randomly oriented, finite circular cylinders." Applied Optics 35 (24): 4927 [10.1364/AO.35.004927] [Journal Article/Letter]
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] [Journal Article/Letter]
1995. "Observation of Shoemaker-Levy Impacts by the Galileo Photopolarimeter Radiometer." Science 268 (5219): 1875-1879 [10.1126/science.268.5219.1875] [Journal Article/Letter]
1995. "Scattering of light by bispheres with touching and separated components." Applied Optics 34 (21): 4589 [10.1364/AO.34.004589] [Journal Article/Letter]
1995. "Low-cost long-term monitoring of global climate forcings and feedbacks." Climatic Change 31 (2-4): 247-271 [10.1007/BF01095149] [Journal Article/Letter]
1994. "T-matrix computations of light scattering by large spheroidal particles." Opt Comm 109 16-21 [Journal Article/Letter]
1994. "Quantifying and minimizing uncertainty of climate forcing by anthropogenic aerosols." Bull Amer Meteorol Soc 75 375-400 [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
1992. "Galileo Photopolarimeter/Radiometer experiment." Space Sci Rev 60 (1-4): 531-563 [10.1007/BF00216867] [Journal Article/Letter]
1989. "Croconic acid: An absorber in the Venus clouds?." Icarus 77 (2): 382-390 [10.1016/0019-1035(89)90095-X] [Journal Article/Letter]
1986. "The Jovian Atmospheres." NASA CP-2441 [Proceedings]
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] [Journal Article/Letter]
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] [Journal Article/Letter]
1980. "Distribution and source of the UV absorption in Venus' atmosphere." J. Geophys. Res. 85 (A13): 8141-8150 [10.1029/JA085iA13p08141] [Journal Article/Letter]
1980. "Cloud and haze properties from Pioneer Venus polarimetry." J. Geophys. Res. 85 (A13): 8129-8140 [10.1029/JA085iA13p08129] [Journal Article/Letter]
1980. "The clouds of Venus: A synthesis report." J. Geophys. Res. 85 (A13): 8059-8081 [10.1029/JA085iA13p08059] [Journal Article/Letter]
1980. "Cloud morphology and motions from Pioneer Venus images." J. Geophys. Res. 85 (A13): 8107-8128 [10.1029/JA085iA13p08107] [Journal Article/Letter]
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] [Journal Article/Letter]
1979. "Orbiter Cloud Photopolarimeter Investigation." Science 203 (4382): 781-785 [10.1126/science.203.4382.781] [Journal Article/Letter]
1979. "Cloud Images from the Pioneer Venus Orbiter." Science 205 (4401): 74-76 [10.1126/science.205.4401.74] [Journal Article/Letter]
1978. "Nature of the atmospheric dynamics on Venus from power spectrum analysis of Mariner 10 images." J. Atmos. Sci. 35 1584-1595 [Journal Article/Letter]
1977. "Dynamics, winds, circulation and turbulence in the atmosphere of venus (Chapter 7)." Space Sci. Rev. 20 (4): 357-387 [10.1007/BF02186459] [Journal Article/Letter]
1975. "On the origin of ultraviolet contrasts on Venus." J. Atmos. Sci. 32 1190-1200 [Journal Article/Letter]
1974. "Light scattering in planetary atmospheres." Space Sci. Rev. 16 (4): 527-610 [10.1007/BF00168069] [Journal Article/Letter]
1968. "Radiative Opacity in Stellar Atmospheres. I. Metal Absorption Coefficients." ApJL 154 689-714 [10.1086/149790] [Journal Article/Letter]
Non-Refereed
2006. "Multiple Scattering of Light by Particles: Radiative Transfer and Coherent Backscattering." [Book]