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Record 1 of 8636
Retrievals of Aerosol and Cloud Particle Microphysics Using Polarization and Depolarization Techniques
Author and Affiliation:
Mishchenko, Michael(NASA Goddard Inst. for Space Studies, New York, NY United States)
Hansen, James E. [Technical Monitor]
Abstract: The recent availability of theoretical techniques for computing single and multiple scattering of light by realistic polydispersions of spherical and nonspherical particles and the strong dependence of the Stokes scattering matrix on particle size, shape, and refractive index make polarization and depolarization measurements a powerful particle characterization tool. In this presentation I will describe recent applications of photopolarimetric and lidar depolarization measurements to remote sensing characterization of tropospheric aerosols, polar stratospheric clouds (PSCs), and contrails. The talk will include (1) a short theoretical overview of the effects of particle microphysics on particle single-scattering characteristics; (2) the use of multi-angle multi-spectral photopolarimetry to retrieve the optical thickness, size distribution, refractive index, and number concentration of tropospheric aerosols over the ocean surface; and (3) the application of the T-matrix method to constraining the PSC and contrail particle microphysics using multi-spectral measurements of lidar backscatter and depolarization.
Publication Date: Jan 01, 2001
Document ID:
20010060333
(Acquired Jul 13, 2001)
Subject Category: GEOPHYSICS
Document Type: Preprint
Meeting Information: Metropolitan Office Seminar; 6 Apr. 2001; Bracknell; United Kingdom
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD United States
Organization Source: NASA Goddard Inst. for Space Studies; New York, NY United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: AEROSOLS; CLOUD PHYSICS; POLAR METEOROLOGY; LIGHT SCATTERING; SIZE DISTRIBUTION; REMOTE SENSING; S MATRIX THEORY; OPTICAL RADAR
Availability Source: Other Sources
Availability Notes: Abstract Only
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