World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

The Role of the Qbo in the Inter-hemispheric Coupling of Summer Mesospheric Temperatures : Volume 10, Issue 10 (11/10/2010)

By Espy, P. J.

Click here to view

Book Id: WPLBN0003989943
Format Type: PDF Article :
File Size: Pages 20
Reproduction Date: 2015

Title: The Role of the Qbo in the Inter-hemispheric Coupling of Summer Mesospheric Temperatures : Volume 10, Issue 10 (11/10/2010)  
Author: Espy, P. J.
Volume: Vol. 10, Issue 10
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Forkman, P., Murtagh, D., Fernández, S. O., Espy, P. J., & Stegman, J. (2010). The Role of the Qbo in the Inter-hemispheric Coupling of Summer Mesospheric Temperatures : Volume 10, Issue 10 (11/10/2010). Retrieved from http://ebooklibrary.org/


Description
Description: Norwegian University of Science and Technology, Trondheim, Norway. Inter-hemispheric coupling between the polar summer mesosphere and planetary-wave activity in the extra-tropical winter stratosphere has recently been inferred using Polar Mesospheric Cloud (PMC) properties as a proxy for mesospheric temperature (Karlsson et al., 2007). Here we confirm these results using a ten-year time series of July mesospheric temperatures near 60° N derived from the hydroxyl (OH) nightglow. In addition, we show that the time/lagged correlation between these summer mesospheric temperatures and the ECMWF winter stratospheric temperatures displays a strong Quasi-Biennial Oscillation (QBO). The sign and phase of the correlation is consistent with the QBO modulation of the extra-tropical stratospheric dynamics in the Southern Hemisphere via the Holton-Tan mechanism (Holton and Tan, 1980). This lends strength to the identification of synoptic and planetary waves as the driver of the inter-hemispheric coupling, and results in a strong QBO modulation of the polar summer mesospheric temperatures.

Summary
The role of the QBO in the inter-hemispheric coupling of summer mesospheric temperatures

Excerpt
Baker, D. J. and Stair Jr., A. T.: Rocket measurements of the altitude distributions of the hydroxyl airglow, Phys. Scripta, 37, 611–622, 1988.; Baldwin, M. P. and Dunkerton, T. J.: Quasi-biennial modulations of the Southern Hemisphere stratospheric polar vortex, Geophys. Res. Lett., 25, 3343–3346, 1998.; Becker, E., Müllemann, A., Lübken, F.-J., Körnich, H., Hoffmann, P., and Rapp, M.: High Rossby-wave activity in austral winter 2002: Modulation of the general circulation of the MLT during the MaCWAVE/MIDAS northern summer program, Geophys. Res. Lett., 31, L24S03, doi:10.1029/2004GL019615, 2004.; Berk, A., Bernstein, L. S., and Robertson, D. C.: MODTRAN: A Moderate Resolution Model for LOWTRAN 7. Air Force Geophysics Laboratory Technical Report GL-TR-89-0122, Hanscom AFB, MA, 1989.; Bittner, M., Offermann, D., Graef, H. H., and Donner, M.: Wavelet analysis of upper mesosphere temperature variations, Adv. Space Res., 21, 1445–1448, 1998.; Bittner, M., Offermann, D., and Graef, H. H.: Mesopause temperature variability above a midlatitude station in Europe, J. Geophys. Res., 105, 2045–2058, 2000.; Bittner, M., Offermann, D., Graef, H. H., Donner, M., and Hamilton, K.: An 18-year time series of OH rotational temperatures and middle atmosphere decadal variations, J. Atmos. Sol.-Terr. Phys., 64, 1147–1166, 2002.; Dunkerton, T. J. and Baldwin, M. P.: Quasi-biennial modulation of planetary wave fluxes in the Northern Hemisphere winter, J. Atmos. Sci., 48, 1043–1061, 1991.; Espy, P. J., Huppi, R., and Manson, A.: Large scale, persistent latitude structures in the mesospheric temperature during ANLC-93, Geophys. Res. Lett., 22, 2801–2804, 1995.; Espy, P. J., Stegman, J., and Witt, G.: Interannual variations of the quasi-16-day oscillation in the polar summer mesospheric temperature, J. Geophys. Res., 102, 1983–1990, doi:10.1029/96JD02717, 1997.; Espy, P. J. and Stegman, J.: Trends and variability of mesospheric temperature at high-latitudes, Phys. Chem. Earth, 27, 543–553, 2002.; French, W. J. R. and Burnes, G. B.: The influence of large-scale oscillations on long-term trend assessment in hydroxyl temperatures over Davis, Antarctica, J. Atmos. Sol.-Terr. Phys., 66, 493–506, 2004.; Fritts, D. C. and Luo, Z. G.: Dynamical and radiative forcing of the summer mesopause circulation and thermal structure. 1. Mean solstice conditions, J. Geophys. Res., 100, 3119–3128, 1995.; Fritts, D. C. and Alexander, M. J.: Gravity wave dynamics and effects in the middle atmosphere, Rev. Geophys., 41(1), 1003, doi:10.1029/2001RG000106, 2003.; Giorgetta, M. A. and Manzini, A.: Forcing of the quasi-biennial oscillation from a broad spectrum of atmospheric waves, Geophys. Res. Lett., 29, 1245, doi:10.1029/2002GL014756, 2002.; Holton, J. R. and Tan, H.-C.: The influence of the equatorial quasi-biennial oscillation on the global circulation at 50 mb, J. Atmos. Sci., 37, 2200–2208, 1980.; Holton, J. R.: The role of gravity wave induced drag and diffusion in the momentum budget of the mesosphere, J. Atmos. Sci., 39, 791–799, 1982.; Holton, J. R.: The influence of gravity wave breaking on the general circulation of the middle atmosphere, J. Atmos. Sci., 40, 2497–2507, 1983.; Hibbins, R. E., Espy, P.&nb

 

Click To View

Additional Books


  • On Transition-zone Water Clouds : Volume... (by )
  • Regional Modelling of Tracer Transport b... (by )
  • Sources and Mixing State of Size-resolve... (by )
  • Synoptically-induced Variability in the ... (by )
  • Retrieval of Methane Source Strengths in... (by )
  • The Vamos Ocean-cloud-atmosphere-land St... (by )
  • Characterization of Ultrafine Particle N... (by )
  • Co Measurements from the Ace-fts Satelli... (by )
  • Seasonal and Diurnal Characteristics of ... (by )
  • The Bllast Field Experiment: Boundary-la... (by )
  • The Characterisation of Pollution Aeroso... (by )
  • Co2 Flux History 1982–2001 Inferred from... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.