A free jet can create clouds and rain ... http://alamaro.home.comcast.net/~alamaro/WMA_April_2006.pdf
JOURNAL OF WEATHER MODIFICATION Volume 38 - Reviewed - A Preliminary Assessment of Inducing Anthropogenic Tropical Cyclones Using Compressible Free Jets and the Potential for Hurricane Mitigation By: Moshe Alamaro1, Juergen Michele2 and Vladimir Pudov3 1 Research Affiliate, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139 2 Professor, Institut für Energie-,Verfahrens- und Umwelttechnik, Wilhelmshaven, Germany. 3 Research Scientist, Institute of Experimental Meteorology, Obninsk, Kaluga reg., Russia. Abstract. We have conceptually studied the potential for mitigation of natural hurricanes by inducing anthropogenic perturbations prior to or in front of an advancing hurricane. We propose actual hardware for the task. It consists of multiple jet engines mounted on barges or ships that will be dispatched to strategic locations in the ocean where the sea surface temperature is high and the vertical temperature profile and atmospheric conditions are such that the potential for development of a hurricane or tropical storm is high. The engines will direct compressible high momentum, high-speed free jets skyward causing entrainment of even larger amounts of additional air to form plumes and updrafts. The unstable humid updraft will itself produce conditions for additional entrainment and evolution of tropical cyclones. These anthropogenic perturbations will extract enthalpy from the ocean, cooling the ocean surface and depriving the advancing natural hurricane of its needed thermal energy. > Here is a trivial point. I disagree that wind energy changes climate. > Rather > it influences weather locally. If one turns off the wind turbines > presumably > the weather is quickly restored to its normal state. Moreover the > objective > was to produce energy; and not to influence weather or climate. I think > to > call wind energy generation geoengineering is stretching more than a bit > and > only confuses the objective. > > > > > > From: [email protected] > [mailto:[email protected]] On Behalf Of hiroshi mizutani > Sent: Sunday, July 24, 2011 8:28 PM > To: [email protected] > Cc: David Keith; Juergen Michele; Daniel Kirk-Davidoff; globalchange@mi t; > [email protected] > Subject: [geo] Re: The great experiment is started > > > > Hi Michele: I found your contribution extremely interesting. > > > > A similar, though small in scale and not well documented, incident ocurred > in Japan. > > > > After wind turbines were set up near the top of a mountain in Wakayama > Prefecture, rainfall at the foot of the mountain decreased; thus reducing > the harvest of mandarin oranges from neighborhood farms. > > > > I heartily agree with your view that the wind energy generation changes > climate and is certainly one form of geoengineering. > > > > -- > You received this message because you are subscribed to the Google Groups > "geoengineering" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/geoengineering/-/LLVEDjql_0YJ. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/geoengineering?hl=en. > > -- -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
