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Observation of night OH in the mesosphere

Pickett, H. M. and Read, W. G. and Lee, K. K. and Yung, Y. L. (2006) Observation of night OH in the mesosphere. Geophysical Research Letters, 33 (19). Art. No. L19808. ISSN 0094-8276. https://resolver.caltech.edu/CaltechAUTHORS:20140822-092816343

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Abstract

Satellite measurements from the Aura MLS instrument show a layer of OH near 82 km in the night. This layer confirms earlier measurements by ground-based LIDAR. The MLS and LIDAR observations measure OH in the lowest vibrational state and are distinct, but related chemically, from vibrationally-excited emission from the OH Meinel bands in the near infrared. The Caltech 1-D model has been extended to include vibrational dependence of OH reactions and shows good agreement with MLS OH data and with observations of the Meinel bands. The model shows a chemical lifetime of HO_x that increases from less than a day at 80 km to over a month at 87 km. Above this altitude transport processes become an important part of HO_x chemistry. The model predicts that ground state OH represents 99% of the total OH up to 84 km.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1029/2006GL026910DOIArticle
http://onlinelibrary.wiley.com/doi/10.1029/2006GL026910/abstractPublisherArticle
http://onlinelibrary.wiley.com/doi/10.1029/2006GL026910/suppinfoPublisherSupporting Information
ORCID:
AuthorORCID
Yung, Y. L.0000-0002-4263-2562
Additional Information:© 2006 The American Geophysical Union. Received 15 May 2006; Revised 14 August 2006; Accepted 30 August 2006; Published 6 October 2006. We wish to thank C. Miller and S. Sander for valuable discussions and all who helped make the Aura OH measurements possible. KKL was supported by a Summer Undergraduate Research Fellowship at the California Institute of Technology. YLY was supported by NASA grant NNG04GD76G to the California Institute of Technology. Research at the Jet Propulsion Laboratory, California Institute of Technology, is performed under contract with the National Aeronautics and Space Administration.
Funders:
Funding AgencyGrant Number
Caltech Summer Undergraduate Research Fellowship (SURF)UNSPECIFIED
NASANNG04GD76G
NASA/JPL/CaltechUNSPECIFIED
Issue or Number:19
Record Number:CaltechAUTHORS:20140822-092816343
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140822-092816343
Official Citation:Pickett, H. M., Read, W. G., Lee, K. K., & Yung, Y. L. (2006). Observation of night OH in the mesosphere. Geophysical Research Letters, 33(19), L19808. doi: 10.1029/2006gl026910
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48802
Collection:CaltechAUTHORS
Deposited By: Joanne McCole
Deposited On:22 Aug 2014 17:17
Last Modified:09 Mar 2020 13:19

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