Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

A Database of Microwave Single-Scattering Properties for Nonspherical Ice Particles

A Database of Microwave Single-Scattering Properties for Nonspherical Ice Particles As satellite observations at high microwave frequencies have recently become available, there is an increasing demand for methods that accurately evaluate the single-scattering properties of nonspherical ice particles at these frequencies. Algorithm developers can use the single-scattering datasets in the retrievals of cloud ice water content and snowfall rate. However, the methods that correctly handle the scattering of complex nonspherical particles are computationally inefficient and impractical for physical retrieval algorithms, in which scattering needs to be evaluated many times for particles with various sizes and shapes. As a remedy, during the past several years we have computed the scattering propertiesscattering and absorption cross sections, phase functions, asymmetric parameters, and backscattering cross sections using an accurate discrete dipole approximation method and arranged the results into an easy-to-access database. The database contains the scattering properties at frequencies from 15 to 340 GHz, with temperatures from 0 to 40C, of particle sizes (maximum dimension) from 50 to 12,500 m, and for 11 particle shapes. The database along with an easy-to-use reading program is now made available to interested investigators. This article explains how this database is derived and how it can be used. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

A Database of Microwave Single-Scattering Properties for Nonspherical Ice Particles

Liu, Guosheng
Bulletin of the American Meteorological Society , Volume 89 (10): 8 – Oct 17, 2008
Download PDF
8 pages

Loading next page...
1
 
/lp/ams/a-database-of-microwave-single-scattering-properties-for-nonspherical-K9j7JF50oK

References (30)

Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
DOI
10.1175/2008BAMS2486.1
Publisher site
See Article on Publisher Site

Abstract

As satellite observations at high microwave frequencies have recently become available, there is an increasing demand for methods that accurately evaluate the single-scattering properties of nonspherical ice particles at these frequencies. Algorithm developers can use the single-scattering datasets in the retrievals of cloud ice water content and snowfall rate. However, the methods that correctly handle the scattering of complex nonspherical particles are computationally inefficient and impractical for physical retrieval algorithms, in which scattering needs to be evaluated many times for particles with various sizes and shapes. As a remedy, during the past several years we have computed the scattering propertiesscattering and absorption cross sections, phase functions, asymmetric parameters, and backscattering cross sections using an accurate discrete dipole approximation method and arranged the results into an easy-to-access database. The database contains the scattering properties at frequencies from 15 to 340 GHz, with temperatures from 0 to 40C, of particle sizes (maximum dimension) from 50 to 12,500 m, and for 11 particle shapes. The database along with an easy-to-use reading program is now made available to interested investigators. This article explains how this database is derived and how it can be used.

Journal

Bulletin of the American Meteorological Society – American Meteorological Society

Published: Oct 17, 2008

There are no references for this article.