Light Scattering by Irregularly Shaped Particles

1. Front Matter

   Pages i-x

   PDF

2. Introduction

   1. Some Remarks on Science, Scientists, and the Remote Sensing of Particulates

      • D. Deirmendjian

      Pages 1-6

   2. Focusing in on Particle Shape

      • J. Mayo Greenberg

      Pages 7-24

3. User Needs

   1. Sensing Ice Clouds from Satellites

      • James T. Bunting

      Pages 25-34

   2. Lidar Visibility Measurements

      • Eugene Y. Moroz

      Pages 35-38

   3. Non-Spherical Particle Scattering: Air Force Applications

      • Eric P. Shettle

      Pages 39-48

   4. Particles Producing Strong Extinction in the Infrared

      • Janon Embury

      Pages 49-54

4. Specific Particle Descriptions

   1. Shape of Raindrops

      • V. Ramaswamy, Petr Chýlek

      Pages 55-61

   2. Atmospheric Ice Crystals

      • Bernard Vonnegut

      Pages 63-67

   3. Physical Properties of Atmospheric Particulates

      • Roger J. Cheng

      Pages 69-78

   4. Some Characteristics of the Antarctic Aerosol

      • A. Hogan, A. M. Pitaniello, R. Cheng, S. Barnard, W. Winters, J. A. Samson

      Pages 79-86

   5. Examples of Realistic Aerosol Particles Collected in a Cascade Impactor

      • David C. Woods

      Pages 87-95

5. Theoretical Methods

   1. Absorption by Small Regular Non-Spherical Particles in the Rayleigh Region

      • Janon Embury

      Pages 97-102

   2. Infrared Absorption Spectra of Non-Spherical Particles Treated in the Rayleigh-Ellipsoid Approximation

      • Donald R. Huffman, Craig F. Bohren

      Pages 103-111

   3. Scattering by Non-Spherical Particles of Size Comparable to a Wavelength: A New Semi-Empirical Theory

      • James B. Pollack, Jeffrey N. Cuzzi

      Pages 113-125

   4. Scattering and Absorption by Wavelength Size Discs

      • Herschel Weil, C. M. Chu

      Pages 127-134

   5. Perturbation Approach to Light Scattering by Non-Spherical Particles

      • J. T. Kiehl, M. W. Ko, A. Mugnai, Petr Chýlek

      Pages 135-140

   6. Exact Calculations of Scattering from Moderately-Nonspherical Tn-Particles: Comparisons with Equivalent Spheres

      • Warren Wiscombe, Alberto Mugnai

      Pages 141-152

   7. Surface Waves in Light Scattering by Spherical and Non-Spherical Particles

      • Petr Chýlek, J. T. Kiehl, M. K. W. Ko, A. Ashkin

      Pages 153-164

   8. Shifrin’s Method Applied to Scattering by Tenuous Non-Spherical Particles

      • Charles Acquista

      Pages 165-168

This volume contains most of the invited papers presented at the International Workshop on Light Scattering by Irregularly Shaped Particles held on June 5-7, 1979. at the State University of New York at Albany (SUNYA). Over seventy participants representing many dis­ ciplines convened to define some of the ever-increasing number of resonant light-scattering problems associated with particle shape and to relate their most recent investigations in this field. It is obvious from the two introductory papers that an investi­ gator's primary discipline determines his/her approach to the light­ scattering problem. The meteorologist, Diran Deirmendjian, advocates an empirical methodology: to model the scattering by atmospheric aerosols, using equivalent spheres as standards, in the most effi­ cient and simplest manner that is consistent with remote sensing, in situ, and laboratory· data. Because of the almost infinite variety of particle shapes, he questions not only the possibility but even the usefulness of the exact solution of scattering by a totally arbitrary particle. The astrophysicist, J. Mayo Greenberg, is primarily concerned with the information content carried by the scattered light because this radiation is the sole clue to under­ standing the nature of interstellar dust. What measurements (polar­ ization, color dependence, etc ••• ) should be made to best determine a given particle characteristic (size, surface roughness, refractive index, etc ••• )? Thus, he considers the physics of the scattering process to be of paramount interest.

• color
• information
• light scattering
• measurement
• model
• nature
• physics
• radiation
• remote sensing
• scattering
• sensing
• surface

• Space Astronomy Laboratory, State University of New York at Albany, USA

  Donald W. Schuerman

Policies and ethics