That's only true if you're forcing the oscillator itself, not its effects. One cannot eject stones from ponds by forcing ripples!
A On 29 Jan 2014 10:23, "Stephen Salter" <[email protected]> wrote: > Michael > > If meteorological oscillations behave like most other oscillations you can > increase or reduce their amplitudes by choosing the phase of your > intervention. Quite small impulses can have large effects over long > periods. > > Stephen > > Emeritus Professor of Engineering Design School of Engineering University > of Edinburgh Mayfield Road Edinburgh EH9 3JL Scotland [email protected] +44 > (0)131 650 5704 Cell 07795 203 195 WWW.see.ed.ac.uk/~shs > > On 28/01/2014 23:01, Michael Hayes wrote: > > > 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/%7Egeerts/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. > > > > -- > > > The University of Edinburgh is a charitable body, registered in > Scotland, with registration number SC005336. > > -- > 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. > > -- 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.
