It is interesting to view the findings of Aquila et. al. with what is known about the relationship of the QBO and the ENSO. I did a short search and found this: The quasi-biennial oscillation and the El Niño Southern Oscillation:<http://www-das.uwyo.edu/~geerts/cwx/notes/chap11/qbo_enso.html>
*"The QBO is a regular variation of zonal (i.e. east-west) stratospheric winds above the equator (Section 12.3). The ENSO, on the other hand, is highly irregular and involves near-surface winds as well as the ocean. Both oscillations have a clear effect on the frequency of hurricanes in the Atlantic, amongst others. * *Notwithstanding their obvious differences, there appears to be a weak correlation between the QBO and the ENSO. An examination of the QBO signal over the Atlantic and Africa shows a correlation with the Southern Oscillation Index in the early part of the year (1). Strong La Niña events tend to occur when the QBO is in its westerly phase over the equatorial Pacific.* *A record of SOI values for 1876 - 1995 reveals that the ENSO can be decomposed in two cycles: a quasi-biennial rhythm and a low frequency (5-10 year) variation (2). Both signals were notably weak during 1921-41 (when ENSO activity was suppressed), and both were strong prior to 1920 and after the mid 1960�s. The quasi-biennial ENSO rhythm appears to be a harmonic oscillation in equatorial Pacific atmosphere-ocean system, and it was in sync with the QBO in 1879-99 and 1963-83. For the quasi-biennial ENSO rhythm, sea-level pressures (the SOI) and SST values (El Niño) are notably well correlated, in particular in 1879-99 and 1963-83.".* My yellow highlight*.* The direct surface cooling of the Subtropical Convergance Zones (STCZ) may be needed if SSI is to be deployed. Directly cooling the STCZs with MCB and or Large Scale Mariculture (LSM) would obviously effect both wind and ocean surface possibly countering SSIs' effect on the QBO/ENSO relationship. Having the Aquila study would seem to make modeling MCB and or LSM effects on the QBO streightforward. Best, Michael On Monday, January 27, 2014 9:13:03 AM UTC-8, Motoko wrote: > *Aquila, V.; Garfinkel, C. I.; Newman, P. A.; Oman, L. D.; Waugh, D. W. > (2014): Modifications of the quasi-biennial oscillation by a geoengineering > perturbation of the stratospheric aerosol layer. (accepted article). In > Geophys. Res. Lett. DOI 10.1002/2013GL058818 .* > > "This paper examines the impact of geoengineering via stratospheric > sulfate aerosol on the quasi-biennial oscillation (QBO) using the NASA > Goddard Earth Observing System (GEOS-5) Chemistry Climate Model." > > Link <http://onlinelibrary.wiley.com/doi/10.1002/2013GL058818/abstract> ( > http://onlinelibrary.wiley.com/doi/10.1002/2013GL058818/abstract, pay > wall) > -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
