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optical properties of PSC Ia‐enhanced at UV and visible wavelengths: Model and observations
Author(s) -
Reichardt J.,
Tsias A.,
Behrendt A.
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl010904
Subject(s) - lidar , wavelength , backscatter (email) , ultraviolet , depolarization ratio , raman spectroscopy , materials science , optics , physics , telecommunications , computer science , wireless
Model calculations suggest that PSC‐Ia optical properties measured by lidar at ultraviolet and visible wavelengths are strongly correlated; particle depolarization ratios and backscatter coefficients are 17% smaller and 41% larger at a wavelength of 532 nm than at 355 nm, respectively. The model relations are used to compute 532‐nm particle backscatter and depolarization ratios from 355‐nm lidar data of a PSC Ia‐enhanced, i.e., a PSC of type Ia with unusually high backscatter ratios, measured with a UV Raman lidar over Esrange, Sweden (67.9° N, 21.1° E), on 20 Jan 1997. The calculated optical properties agree well with lidar observations at 532 nm of this PSC type.