MONITORING ICE CRYSTALS CLOUDS: INVESTIGATION OF THE LIDAR
DEPOLARIZATION RATIOS

Voudouri, Kalliopi-Artemis; Giannakaki, Elina; Komppula, Mika and; Gialitaki, Anna; Natsis, Athanasios; Balis, Dimitris

doi:10.1051/epjconf/202023708013

Μονάδα:

Ερευνητικό υλικό ΕΚΠΑ

Τίτλος:

MONITORING ICE CRYSTALS CLOUDS: INVESTIGATION OF THE LIDAR
DEPOLARIZATION RATIOS

Γλώσσες Τεκμηρίου:

Αγγλικά

Περίληψη:

A cirrus cloud dataset from a groundbased lidar in a sub-arctic station
is analyzed in terms of the particle depolarization ratio. The
depolarization values -delta- showed a broad distribution, ranging
between 0.25 and 0.7, with a mean value of 0.38 +/- 0.07. This
variability is examined in correlation with temperature dependencies and
the cirrus optical depth. Depolarization values greater than 0.45 are
observed from temperatures between -60 degrees C and -40 degrees C,
where horizontally oriented planar ice crystals are to be expected. Two
case studies are also, discussed and analyzed in terms of depolarization
height dependence.

Έτος δημοσίευσης:

2020

Συγγραφείς:

Voudouri, Kalliopi-Artemis
Giannakaki, Elina
Komppula, Mika and
Gialitaki, Anna
Natsis, Athanasios
Balis, Dimitris

Εκδότης:

E D P SCIENCES

Τίτλος συνεδρίου:

29TH INTERNATIONAL LASER RADAR CONFERENCE (ILRC 29)

Επίσημο URL (Εκδότης):

https://doi.org/10.1051/epjconf/202023708013

DOI:

10.1051/epjconf/202023708013