<br />LIFE CYCLE
<br />OF CLOUD DEVELOPMENT
<br />
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<br />. . ,//./ . '"
<br />~~-= r/./:f'/' *.
<br />~- t j( *:::,- (tlffl I
<br />MODI FI E D CLOU D ::*/:f~1~;-- ~;fi;f{*;~)
<br />looF~JECTIVE 11- - - - - -__~l$:~~...==.___ *'!~:Mlo~j<J
<br /><;';- --- . . 1/ ~'1!~' t,.t'L~'1 0*
<br />(), ( ". C*' r .'.0 ~ *'
<br />320F - - - - - - - - - - (t,+t.~{:...O - - - 'I'~.~\JI\~O .','1- - ~O:f':fJ: ^~,~
<br />o ~!"IIO') .11\.' ,.0) .' J -<.
<br />0/0 o. vi' . :1/):;0 . .oo\o~" c.' )0' .':' ~ , 0 0
<br />o 0 0 0 . )./110' . , ..... (.. 0 . .
<br />o QO . . .... . . 0
<br />o 0 - .' ., 0 . " 0 . . 0
<br />I oO,;o:J' 0 . J\.l.\:o~ ~: ....~\..~o:...~.~. (..:I;:/. "~. j '.'
<br />. "0 1 . . . \,\. '"' I . :. .~'~..., y l. . . . 0 ~ \ 0
<br />o.\:-~.:~~ ~0~~;\"':":;"'~ \', ')\1\~\T
<br />Ag I . .~ ,\~ .\\\; ~\~~:~:
<br />~~_. ~=--~ ~ .",.",.
<br />
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<br />)
<br />
<br />b
<br />
<br />(
<br />
<br />
<br />Much more water
<br />is processed by larger
<br />cloud, resulting in more
<br />precipitation on the
<br />ground.
<br />
<br />Great amount of heat is re-
<br />leased when supercooled
<br />drops freeze, causing sub-
<br />stantial cloud growth.
<br />
<br />
<br />Concentrated charge of silver
<br />iodide (AGI) delivered into
<br />updraft of cloud.
<br />
<br />
<br />FlED CLOUD.. Ifavorable _ *.~.
<br />MO DI JECTlVE 2 -When con~~~~sa:~ '. ~ ,:,:,'t-l";/
<br />IboF - (~~r stimulnled ~~:d 'kOOFt.lMIN) ,.:ti~ _; 1~:J'*1 :n:" __
<br />updrafts less t - . *'o~l~;j" -~ - I': .0' <..:\~........
<br />- -(J . .0,_ , ~. '.' ",
<br />- - - - - '. :in,:', :.' ;:':.;:.:":0
<br />'220F - - - ~-" ..f.. o\~r:..~ :'f" t.u..,~Y:...~
<br />.,J ( ~., ~'o O{ · "\,... :: \ ...', '.::\'; , ,
<br />.. '. ., .r!' ' , , _____ ". ' 0,., '., _
<br />( ..\:::::-: ;. '.:,~.r::. ;" 1 . :~,~~\~~~;.~..'::',~~ ----=
<br />" 1,,0.,. ,\0 ~. ....\ ~=-4_ \\\\\.~\\~\~_
<br />( .1'.... ... . .~~ ~ >, ., _ _
<br />.' '. . .. . ....' - .
<br />
<br />I' ------:--: 25 min.
<br />5mln
<br />
<br />
<br />
<br />(c)
<br />
<br />
<br />--=::;::--~ ---~-
<br />
<br />Time n
<br />
<br />n
<br />Moderate rain
<br />conti nu es os
<br />cloud dissipates
<br />
<br />35m
<br />
<br />(I) Many ice crystals form in super-
<br />cooled region of cloud and grow
<br />at expense of cloud droplets.
<br />(2) preci p itation beg ins when large
<br />ice crystals fall and melt.
<br />
<br />Silver iodide
<br />de I ivered into
<br />updraft.
<br />
<br />n
<br />
<br />Om
<br />
<br />-
<br />
<br />5m
<br />
<br />LEGEN 0
<br />* -Ice
<br />DOoO-Liquid droplets
<br />-Ag I nuclei
<br />
|