Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/12779
Title: Closure studies in mixed-phase and ice clouds over Cyprus: is there agreement between ice nuclei and ice crystal number concentration?
Authors: Mamouri, Rodanthi-Elisavet 
Ansmann, Albert 
Bühl, Johannes 
Engelmann, Ronny 
Hadjimitsis, Diofantos G. 
Major Field of Science: Engineering and Technology
Field Category: Civil Engineering
Keywords: Active Remote Sensing;Lidar;Aerosol;Clouds
Issue Date: Mar-2018
Source: Sixth International Conference on Remote Sensing and Geoinformation of the Environment, 2018, Paphos, Cyprus, 26-29 March
Project: EXCELSIOR 
Abstract: Combined aerosol and cloud measurements with polarization/Raman lidar and wind Doppler lidar were performed during field campaigns in Cyprus in 2015 and 2017/18. One of the goals was to investigate the relationship between the ice-nucleating particle concentration (INPC) outside mixed-phase and cirrus clouds and the ice crystal number concentration (ICNC) within the observed altocumulus and cirrus layers or just below cloud base (in the virga region). In a cooperation of the Cyprus University of Technology (CUT) and the Leibniz Institute for Tropospheric Research (TROPOS) we developed a new technique to derived height profiles of INPC from polarization lidar measurements. The Doppler lidar, on the other hand, measures the fall velocity of ice crystals from which the effective size of crystals can be estimated and together with the optical properties (from the polarization lidar observations) the ice crystal number concentration can be estimated as well. We present case studies of INPC profiles and ICNC estimates for altocumulus layers (between 5-7 km height) and in cirrus clouds (between 9-10 km height). Good agreement, but also strong deviations between the INPC and ICNC values were found. This will be discussed in the presentation.
URI: http://ktisis.cut.ac.cy/handle/10488/12779
Rights: info:eu-repo/semantics/openAccess
Type: Conference Papers
Affiliation : Cyprus University of Technology 
Leibniz Institute for Tropospheric Research 
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

Files in This Item:
File Description SizeFormat
08_1_RSCY2018_01_abstract.pdf83.09 kBAdobe PDFView/Open
CORE Recommender
Show full item record

Page view(s)

146
Last Week
0
Last month
4
checked on Jun 16, 2021

Download(s)

23
checked on Jun 16, 2021

Google ScholarTM

Check


Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.