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Comment on comment by Markus Rapp and Franz-Josef Lübken on “Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity”

Bellan, P. M. (2010) Comment on comment by Markus Rapp and Franz-Josef Lübken on “Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity”. Journal of Geophysical Research D, 115 . Art. No. D13206. ISSN 0148-0227. https://resolver.caltech.edu/CaltechAUTHORS:20100810-112040571

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Abstract

Rapp and Lübken (RL09) state that there is excellent, precise agreement between observations and polar mesosphere summer echo (PMSE) models based on radar reflection by gas‐phase electrons and conclude that because of this excellent, precise agreement other models should not be considered. In particular, they provide figures demonstrating quantitative agreement between observations and a heating/overshoot model. Careful consideration of the models presented by RL09 shows that there are inconsistencies in the assumptions regarding Lambda (i.e., the ratio of the number density of electrons attached to aerosol particles to the number density of free electrons) and there are quantitative errors in the calculation of the radar reflection. In addition, RL09’s claim that the correlation between PMSE maximum and bite‐outs is either spurious or misrepresentative is refuted using radar measurements. Finally, it is shown that there is a shortcoming (not discussed by RL09) in the Bellan 2008 model, and a modification addressing this shortcoming is briefly described.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1029/2009JD013245DOIArticle
ORCID:
AuthorORCID
Bellan, P. M.0000-0002-0886-8782
Additional Information:© 2010 American Geophysical Union. Received 22 September 2009; revised 10 January 2010; accepted 10 May 2010; published 15 July 2010.
Record Number:CaltechAUTHORS:20100810-112040571
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20100810-112040571
Official Citation:Bellan, P. M. (2010), Comment on comment by Markus Rapp and Franz‐Josef Lübken on “Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity,” J. Geophys. Res., 115, D13206, doi:10.1029/2009JD013245.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19368
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Aug 2010 21:05
Last Modified:03 Oct 2019 01:56

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