The depolarization - attenuated backscatter relation: CALIPSO lidar measurements vs. theory | Zendy

Yongxiang Hu | Zendy; Mark Vaughan | Zendy; Zhaoyan Liu | Zendy; Bing Lin | Zendy; Ping Yang | Zendy; D. E. Flittner | Zendy; Bill Hunt | Zendy; Ralph E. Kuehn | Zendy; Jianping Huang | Zendy; Dong Wu | Zendy; Sharon Rodier | Zendy; Kathy Powell | Zendy; Charles R. Trepte | Zendy; David M. Winker | Zendy

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The depolarization - attenuated backscatter relation: CALIPSO lidar measurements vs. theory

Author(s) -

Yongxiang Hu,

Mark Vaughan,

Zhaoyan Liu,

Bing Lin,

Ping Yang,

D. E. Flittner,

Bill Hunt,

Ralph E. Kuehn,

Jianping Huang,

Dong Wu,

Sharon Rodier,

Kathy Powell,

Charles R. Trepte,

David M. Winker

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.005327

Subject(s) - lidar , backscatter (email) , depolarization ratio , aerosol , depolarization , satellite , optics , remote sensing , mie scattering , pathfinder , ice crystals , atmospheric sciences , monte carlo method , environmental science , materials science , scattering , physics , meteorology , light scattering , geology , astronomy , medicine , telecommunications , statistics , mathematics , computer science , library science , wireless , endocrinology

Using measurements obtained by the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite, relationships between layer-integrated depolarization ratio (delta) and layer-integrated attenuated backscatter (gamma) are established for moderately thick clouds of both ice and water. A new and simple form of the delta-gamma relation for spherical particles, developed from Monte Carlo simulations and suitable for both water clouds and spherical aerosol particles, is found to agree well with the observations. A high-backscatter, low-depolarization delta-gamma relationship observed for some ice clouds is shown to result primarily from horizontally oriented plates and implies a preferential lidar ratio - depolarization ratio relation in nature for ice cloud particles containing plates.

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