European Geosciences Union c © 2005 Author(s). This work is licensed under a Creative Commons License. Atmospheric Chemistry and Physics Discussions Interactive comment on “Supersaturation, dehydration, and denitrification in Arctic cirrus”

• Main Author: B. Kärcher
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2005
• Subjects: Arctic; Kiruna
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.562.6063; http://www.cosis.net/copernicus/EGU/acpd/5/S591/acpd-5-S591_p.pdf?PHPSESSID=dace6ddc73fdb06eba86b0b36195604e

I agree that the discussion paper provides not enough information on which observa-tions the model case study is based and how the model has been initialized. I will take care of these points in the revised manuscript. As mentioned in the discussion paper, I am referring to the measurements taken with the GKSS Raman lidar near Kiruna, Sweden, published by Reichhardt et al. (2002), in particular their Figure 1b. As the observation is described there, and no further in situ information (e.g., from aircraft measurements) is available, I find it not necessary to repeat the lidar image in the discussion paper, but will describe the lidar backscatter image and the meteorological situation in more detail in the revised manuscript. S591 The initial vertical profiles of Θ, T, and Si have been taken from the model study of Lin et al. (2005), who analyzed this cloud with a focus on homogeneous and heteroge-neous ice nucleation. The profiles have been taken from a nearby radiosonde, roughly 250 km downwind of Kiruna and 2 hours after cloud started to form. The ice saturation profile has been used as a first guess by Lin et al. (2005); together with the imposed