Multiwavelength lidar observation of thin cirrus at the base of the Pinatubo stratospheric layer during the EASOE Campaign | Zendy

Del Guasta Massimo | Zendy; Morandi Marco | Zendy; Stefanutti Leopoldo | Zendy; Stein Bernhard | Zendy; Kolenda Jurgen | Zendy; Rairoux Patrick | Zendy; Wolf J. P. | Zendy; Matthey Renaud | Zendy; Kyro Esko | Zendy

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Multiwavelength lidar observation of thin cirrus at the base of the Pinatubo stratospheric layer during the EASOE Campaign

Author(s) -

Del Guasta Massimo,

Morandi Marco,

Stefanutti Leopoldo,

Stein Bernhard,

Kolenda Jurgen,

Rairoux Patrick,

Wolf J. P.,

Matthey Renaud,

Kyro Esko

Publication year - 1994

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 - 10.1029/93gl03077

Subject(s) - cirrus , lidar , atmospheric sciences , stratosphere , aerosol , wavelength , environmental science , depolarization ratio , materials science , geology , meteorology , remote sensing , physics , optoelectronics

Multiwavelength lidar measurements carried out in Sodankylä (Finland, 66°N) during EASOE campaign showed high cirrus clouds growing at the base or within Pinatubo aerosol layer. The temperature was generally below −35°C. The mean peak depolarization at 532 nm for all the campaign was 28%, comparable to the values measured in polar cirrus clouds, observed in Dumont d'Urville (Antarctica, 62°S) during 1989, well before the Pinatubo eruption. Optical depth at 532 nm was smaller than 0.3 (thin cirrus). A wavelength dependency was observed in EASOE cirrus backscattering, suggesting a major presence of submicron and micron‐sized particles. Such a presence could explain the low depolarization values.

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