Flow Characteristics of the Santa Ana River Citation Griffiths, Thomas William (1936) Flow Characteristics of the Santa Ana River. Master's thesis, California Institute of Technology. doi:10.7907/8sfb-dj41. https://resolver.caltech.edu/CaltechTHESIS:10102024-162658089 Abstract No abstract. Item Type: Thesis (Master's thesis) Subject Keywords: (Civil Engineering) Degree Grantor: California Institute of Technology Division: Engineering and Applied Science Major Option: Civil Engineering Thesis Availability: Public (worldwide access) Research Advisor(s): Unknown, Unknown Thesis Committee: Unknown, Unknown Defense Date: 1 January 1936 Record Number: CaltechTHESIS:10102024-162658089 Persistent URL: https://resolver.caltech.edu/CaltechTHESIS:10102024-162658089 DOI: 10.7907/8sfb-dj41 Default Usage Policy: No commercial reproduction, distribution, display or performance rights in this work are provided. ID Code: 16786 Collection: CaltechTHESIS Deposited By: Benjamin Perez Deposited On: 11 Oct 2024 18:06 Last Modified: 11 Oct 2024 18:10 Thesis Files PDF - Final Version See Usage Policy. 13MB Repository Staff Only: item control page

SUbr4:t.t.ed 1n, Part.!al Mftllment of the Requtroeent.s fo7 th& Oegrect ,o ., ~ of ~ 1n '0 1v1t ~t?ineering. 0-111\11'1'd.a. ti.ti~ ot T:f$bnol~y ffue.iiena., ~ :1 fomta. •19)6- .PKI tnt.-ri4ttC\-lQ!l l Data 'a ~t~ ~ttot~ . -., ~.~ ~ no• ~~- 16 .~lmtGn• a! Gza2W,. . .. - 1.. <ktn$bt!♦.n ·C ttrie.-~ .-~ ~~- and ~ ~ - -' 1 ,..,. a;., ~sbl:e Ploed DtatrtbUtl• Ht 5- - ~ ~ ~ • -~ 14 - la 20- 21 ·~ d.rd.nage lfY&tem o,f ~ ·'· / · Santa .Aria. ffl.:wr s,rut ltlJ . • . , . t~bUtari..e:1t· • ~ 1485 #4~ lldl&&. above tl1e l<>wr ~on 0:f' ·tJte. dvei-.. ·1'htt ·t;otat tfate:tr:<crop i'ol" t;he; lo~ ten yeos ha,i been ~il!l4ted at ovet" ,00,000 a.¢1e. feet per ~ , and .from. this, wateJ.!!., the oountit,a t>f 8aYl Bem~J) Rtv:ttfltidB .. .a.rut Orange 1-'e ci;bt&imd ~ t r wat.&'t' aupp:J,-.. fart. .of the• . . ,/ • water 1s &t>~d to ttmlo~un<t baslm, part 1a.a ~ 1n . ; of- control at. many po:l.nta; large ftoods have t'B1tulted'. and ,, ·constd&rabte damage don.a. ln i9l4 .and 1916 tM• 4 ~ • were eatimated at ll&,000,000.. In Feb~ 19!7 de:e1Pye4 . b:r!~ al.on& cost ru.vera!de Oottn\y 14oo,ooo,., .I n ,orang<& Oounty ·•· t~ 1916 flood result.Eld .1 n a. lo»• of 11.000•.000., In 1925 the tu~ counties mtel'eat:ed in the Santa AB 9CJt1ght ·a id b-om. the etat.e in at~•lng ~cl oc>ntrolling the '~ f q . . Obat>ter 4-,6 ot the statt4$$; ct 19~ pJ!CWid1Jd fff,J! $25~000 t.o • he •x:pended between 1925 and 1927 1n the· lnverd..t gatl~.. . . Each ceunw provided a ~lt1ng :engineer to work with the st.at.e l!m.gineer. J., P. Lippenoott. reprbOenting Orange ~unty., 1 ' .. • • _, .~ ·~ . A. L. Sonderegger .t n,m Mve:raid.e Oount.y and o. s. IU..:nckley mm ~ Bemard.ino Oounty. Th& river;; 1~s drainage :system# and: }Wdra:ulie sti'Ucture w.e rb 1nvest1gatedJ en un4.e:rgrcund: contour .map· was mad♦ and sev~:ral plans wel'& ottered by which t.he watel" ~ 4 b&. bet-ter c o ~ $14. 'the fl'(k}{i\\ mon com- p1et61y •~llf!d.. 'l'hil .q et$J.9 1ncl.udod :add!t.iCMJ. d:atnlJ fur resenoin, inel"~ epreading ,areaa and rlp-~ amt c~rete channels;. :t!n. the- attldy h&r& p~$d t.htt.·•1fftit· halt· ~n ltonf:tned to .a_ ~Y of 'the: ~.1.Yf!t!' ftcvr. Yearly tl'Q,Ode wen ~~eii •u ~ . e:t ~ W i t tnte)"est Ye.t.her fhafl ~hly. dally". ~r ,· -era,,ri; duJr«t.1~n f'lood•• ttlna ~ <l?i°bbl&t!ia or· the Stmta Ana, ·Wit.h the· ~ bsing ·e arrl.ed, on in im,.~<,uing t' ·4sewotr& and 111rreadlt,g ~~ ntl be dspe~t ··.ltlOft· f t. long t . • now t.ban Oh f.luh: rtl110tt. The· atat1atiloel ohar'1CW18ti:caJ !.Jf the Santa An,i Riv« are computed_.. a otttdy ot t.he t r ~ .m tt me,gnit.ude of 7aa)'l.y f'loode is pl'G$ented: ant .Ute potJS;i:bility ·tit£ eyoU,c flow i• exand.ned,. ·The· rlata ue,ed .In t h!~ ~ttgat.ion~ ,a11 :ilr4\lm .f rom t ~ ~rcee,,,-lfVJ:at:er Supply P ~ , . •'T11& Santa tna Imeet.iga$:l0n.t t:U1£l 11:S t ~ Flow in the Un!:t'ed .$tate8'1l. The f'ir:st ~Vtttisd Ute cov~re,.l th'f;3' .,e:~4 18~ . p.el'iod 1891 - 19,4, t_ha eeoond ,. . • ,\na 'l't'i'.b-~:tes~. the amta ~ . Investtgati<m gi'i/es Gafit:a Ana et Men\one oo.r1tectttd. for ,st;()rage :e;t. B-~. 'V alley W'ld - - --- --\>1ateJ- SUppfy Pape1"" gi:\\'G flt)•W .¢ £· Sant~ Ana at; Mffiwne. ;a,s ' ob-met-\Z'~d. ~ In <:>rde~· to< ,ch~k t~e ,a o~e1t the fl.c ff indi~at:$\ .i n one sou.~:e w:11:tr plotted e;e:~.st the flow in ,c,~ of· the J>'the!"' .e ot~... As,. might be ~peete'd the controlled flofl :0£ t.hb· Santa i\na. as indicated b;r tche Water aupp1Jt .Pap-ere eoowed plotted. atJd tra 'thin •~ i:t vtas 'P(:!saible to: extend ,t;he ff_ood ;.e~ord:il- at f!aentone; back 1~ years te 1872' Qfld: the t'loo-d. Nie;o:rds of Tributari-er:l up 'to· 192.S.. In the extrapolation 0£ t!enten.e reeords thef low of 1884 was ()!l:di.too. .Bineo 11:. £>ell •tter--3 hi~1. Jt was believed t;hat :perha_ps a r elat;fonll);'l:i.p- ~woon loeal yearly m.m'all ani yeurly ~ f f eoutd b-e daduc-ed •and .... 4- Althtlugh the eo~relaticm e ~ of T:r 1butart.ee. 'Q'S:., t!en.f.ort~ ts aatitl:fo,atoriJ $'Id• :re:aao:nably accurate- i.n -th e 1.owe-r rangece: ot: rlow,1; the: ir:ar.1.ation above ~ -o t mean f'ltm- ~ he ± ; 0%. ~r thb t-e-a~ :Etrt.Jrapolated ,point~ W:ere ~ taken in the, crimt)ut·ation-s- ·and m t he a:tudi~ 'O:f' eycle:e.. F-0r- et-a.tie--tleid stutU.t3.a ~ ;i4 ~ data_. ge:tlmt"8~ 1'1-oa ~hQ Sa.ttta Ami 1nve► I tt'rhe: _gu1d~· Dltl'.-i· adopted -1-$ the Sant:a Ana Ri:ver at Mentene. - ta:at. 10 y-eai'tf ,.al1ow a $1-b~tant.ial sgre~ w!:th ~ the ·& .S tm. Ab,.-- . . . th.el"' .g-t·r'eams . ;(!)-f the: basin . \id't,h -th(:) ~ei,t'itm of -· • ~ • '. wo1•,ls, lwdrographe,- eiinels-_,eto.. .,. mail-& -at M:mt.one.,. if ,expt-eesed :-• S t ~ F\$v: in.Oal:1£\ln;da ~butttrie:& ·~ Senta AM Bru.l~t.i:n N6t... 19 Wttt;;er Supply S,. 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" j ,';,. __ ' . .. , .~!___'_ -8- tn a statistical :st~y the ooof':fioi.ent 0£ ~s:riation,- e:. V. ~ t he ~00::f'f'ieient ().f ,!ifkew;,-. o..s. -.a re -often need.. The it, .an indi.c:ation -of t.he eoef'fio±ent-:of v:ari,atio-n.. 4 ,~ l. ~ , vQ;rl at1nn a£ th~ pl0,tted ourv~ to· \he prchabtH.t y eurve-whil& the· -coefficient- of -sk&W,. -.• 1:. ~J}_ - -· , • •.,· (n - l )xC:·..v. -• .s ...~. •-.ll~;_-_. · .. au oa'ti4n o"t tb$cthift!ng of- the ~r,,,emd-8 ft.om tu nteEi.n. flov . a,thr:.. : The :Cr.ltetf't-d -e nte- were ~mnp-ubed as shom. 1.n ra1>le !_ __ ,., • . • / A.UY:."' / 1 0 .- •• _, ,, 1·• t I .... vrrt.tlng .i n the Tr.~saetb.>na ~.f' t..~ A,.,S~:G,.E. Vol.. 84 on 1tp~b- .. ab:l::e, V-al"iation tn Ye.Q"ly Rur.n# from -~ Stwlu o'£ •aalif'°t-m.a - . . stl"etmJ8'.n· det.-ermtnea;1: from :a 16 ree:r J'!ec.o -r4, the.: O,.V,...., • · .~.... .- . . and the earree·too '.ooeffie.i:en.t ;¢Jf slcn as 2,.,5,. •.'l'he, oo?'rec:ted ~effloii!>nt of a. kevr -~ o. s. x F r1here .F ~ 1 +· 8.-,i~. , - 1n: which n n = numbe.r.:,o f yea~ i:rt de.~• . 'l'h!g e.o rre-ctiorr mu:-s.t. :be applied .. vd\1~ of 0-., s. ,aa·• det.emineti in t.hls pape-r would: -'then be (sine-$· • • the ;,1¼ year ~cori waa tak&n) ,, .1 ~ l •.65 x (l + ~~) • ~t.X~ By eomp.a.r-!ng these reaul-tstt ta .obv.ioUS-t hat the •ate.tts,• ' tical. ~ .e ffieiente,- parti-c,ularl;y- the e .. &.. is ·very ~ tiv~l 0 to: large or tnnall f'.tcc,ds ·and 1'ill vary C("f.n&idantbly if a l:ai'gil tl.ood enters- into the '?'ecord. The mpGrl'SllO@ o-f -the ,e:e&ffte,.. i~te- lies: in the f a11,t,. 'that &om them. a curve .,can be 1ilc0tte-d.; probable-d1otrihutto.n of' f\.ood magnttJ.toos... ·The apparent !.$pori.&nee •and -value ·o f t;..116.Ga . eacfi'tetents !a •Et®lewhat de,- nreased by mt1ng tha:t tl~, l~e :so rapidly- when subject to -the ad.di-tion: ,o t· J.1~1e:e±on flf'"t:'4 :one f'looo from the re:eord stbat -~ · the sl~ape -ri: the Oll~ it) ma.~e;r ialily '¢hanged,. A pmbabl.e flood dle-t,~i'btrtio.n 4tl!'Ve ,:1~s d ~ by :a dot't.~d lino$ represent the, aetual distribution at the pel:n t.a :Cl!)-na,idered. ,! 20% - :t>~ the• ~tude .am the e.~ .e l'$preeent$ the apprt).ximate· dietrl;bution ~en smo(),thed out. Th1e, cmV:e· eheake in ehap:e at. le.e at typical -ourvss tor river fltlw.., 1:l4e aoele on the lert $hows the nt11riber o:f t.1.meJti in ;54 ye:ars, wh1ch the flood _of t~ bot.-ttmi oJ~dinat.& (.+ fUlli ... 20%) took pl:ace. The right o:rdinat~ m~ expreaamt as p~ent of time in whie.h ,.· th.is £1t>w to:ok plao;e,. .. ' . '!mm thi&: graph 'the ~at prt>babl.e £low . ,.. Ghape ts, :a howr.t in figure ;,. This eu,rve jlfa$ determined by tna.td.~ a, tQbie e,l¥1'-1i.ng the permmt of ~tut value -a£ the ttow -a nd tr..e- 1n thie order.. ) '.l'he po1ttt1lf wQra Iflot:ted on :r&O't.Q?\;."'Ulil?" ,o oord- iln:e.toa. •tm<l the ,, eurve· drawn as ahorm. th!J gr:a:ph,. Soa'.te& are. ind:ica:t.ed ·o,n This ·:et.1n,e 1,a the one :on wbi-eh deEJiert -o£ a-t:rucf..ttre~ eubjeet to, f'loot:ls n,uld be· used.,. By follow:it)g ove:i-· the o-r4inate on the average. -once ev.efy 8.5 yea.r'S_, there would he 11 flood of too-% 0:.£ the mean flew ·D.r greater,. It 'might b& pertinent to remarlt ·at. this: point. that w'i'.1¢n th:e floo.d11 w!ll ,ooour is 1':ldt; <w1miJl~NJ:d.~ ~Y t!'U\\V' oceu,- in four· -c.onaoont:!:ve 'If(!!Jars:, or 1n :axw· form<,:!,' distribution,. All that. .ts shomi ta: t..1-1(.¼t._. 6n ,e. basts ,of' paet; :reoo:rdia~ fottl" !'l.O'O:de 200% ,or greatar of t h~ mean f'low mq be. $Cpeeted -during a ,4 yf!far p-e.r--- iod... Nl:r· thfr,l rewmn tha: scale o-n the right ·(:11" the peroont 'Of' time: $¢ale :n t, p.re-~rable ·t .o use I Th,e -~ , tn eoxpressing the re-Blll tn. . ~ p!-o,tted o-n reetar>.gtllar ·ooord!na~:f)S we:s then plotted on logarlthmie .J;>'ap$r and the reault-ing CUNe w.as ... 11 - From t.h!e otrtdght 111¥> r'alllltiot$hi-p the relationship between trequeneat and l!lagni~ti4e w,as, dedtieed: a~ ibllewJJl on seat.- log. paper a st.ra!;gh.t line 1,& of the£ otti . where slope ;;:,. - 1.1.0, ,· e =y intercept e: :a 4.5.0 .. . fol:''i;jmes line .. e = t;2.4 fo~ %line . m = - 280 l ...4q3 . = - ♦ l.:N.JV ~r.1· ~-_ .. -ii; . For t:!.mcs• 'Ctlt'V& T o 4oxlo-- OOOOlp ·• ,· p -~ 1;2.tix1:e -.. 0050lp ' •. ~ z12...,. 4,.,..,. -.Ot56p r .. .-1_., .6>Ji,,I. where T =- times equalled. or· e xceeded ln 34 year period: P = p0:reeri,-, of t1111& equalleMr- ·m:eeed·e d in ,11 year ])erit,d ,· ~ £~1-eii ~ kc~ed. tl&w %~ Jl''ffl;Ul. V:ar!a~it>:n \lt • v8 In -oonei.dert.nir now ,o f etreamo -one t'!ley . .. . oona,idet that thame.gnit.ude is pUJ.'e:lY,- ft>rt111toua- puroty -~yel!:e., oir :a eomb.tna~n :1~·. o£ both. At the p,roe-en~ t ,f m _·. th$ prevailing op.tnf-{;ln neem!i t,o • he. that f"lovr 1-s met.ly -eh.anC'e~_ :ft>r- t h-a ma.jdpitq -<-if . ~&e'Ele -al'l.d I . • that -0-yolel1ii. al.though ·they ~ be!> -preaertt,. -are o:ither ,a,o. ·cOtlq)lcGX, to' enaly ~ or ar& oubj1.tet. t-c,. ·-e'O: much v-arir.tt:ton. that-t~ -~ •of lit ~le value in prediet.tng Mu~~t rtowti~. Shtnnan.,. Uairustd.ng c.ye>les -o ? the .R iver ·Uile .iri the faimar-5 1~ Prooe-~a1..,,., ~into ottt that cyctes ~. .be deterirtL"l-ed fr-~rtyea:r i,Q: y ~ar by ha'l'mOnie ... •~':~ pm j_e ot:ed into the- ftrt,u.re,. Sliuman· pro--p-o.e·oo eyoU.e malyai,e wi-:iit')h 11 eonslsts -o.f breaking . up data int.o c:ompo~nt elemonto,. ' cyo-te-s~ whteb. are .a·irrlllar- ·to. ~ a derived ~ sunopot. ~ .g$vi.ng t~h~J.'eby· nomet.1ling to whioh t-errest±at phe:nonx$n& em1 b~ t.ied.,, aztd t h:us -a n irtkling o£ what is to ·come ~ of what- has Oy-ele.a. vhioh have 1>$en .devol-oped are-: .,. Olough Oye-le, 2 spot-e1> :Double Wol:f Qy-ole_.. 5 .. 5 years, solar Cycle,. ll yeua,, .. AlthoµgtI. cyelto ®al.Y's$.:~ ®~ -ttt ,~Tk .$atl,'6lf,a¢~r1:t.sr in. s.ome ~e:,, ti1s,v ll\d.atian ~ w ~rul,~ $ ~ to ·h e too g,r'&at to j ust i.fy arq $it~mpt ~ do long range, t"~~et.1~ An in-· ~1Pet;1¢n of the i~¢etU-aC'J -◊f ?~1.eihc¢· yele:s :Le· given. in •a • lfa:Wlt ·i$~m :in th-0 ~1mgi ·tn ;;,r.inh t i~ !T'..and~.l -~etv1atltm' ·, . . ·., fTom e. ~eta~d ;cycte (' ., t!it1 ~·• ~m ~ he greater than • tt ,' $) y;efiT reeo•· avtwilabl~ ·'1' (~, ·~ 0 ·rhe· {',t.h~~_re t hocl .of' att~tJn~~ &..1;i,(f. ~q~ooy .·.ma lU:ve1.",. d~erndm the· ma.gmt~e::- . o:t eyelea t1r..miet~ e'ff bepeGtion · and· tc~ittl·. ~ • ~ ri'bl:l .nwthod u.eed :in t.hia p~ei- ~ s t ~ fif' 3 a ~ i•.ihie.b. -mev b.e ~'ted M o~"'t.en as: ~tl"ed;: in I~, Flgure 5. T!- hgt~aph :la: lns-p eeted for cvid't\'lne-es of' cy-elea. T''he mat. pmiil!.aent cyele• ts plo1;'ied al~'ii the t he origi1'ial !~ .r.o,graph," new e:yoles.,. if ww noted,. p1.<rt.t.ed. at1.d.. t..¾.:e 4ii'f.er.e-r•4}f.\lG agd.n ~pto'tted. 'fh~ p-roee..dure ia yepeat.ed until itriher c,vcl;~a r.o long~r- vedr.tce ther esidualf;f.. The -0y.cloe, are then added atgebraioly ttl· give 'the compl: ete ~bl:,. fh.e- J? e&idu-al:a, l.eft . aft,or t.he ftnal e ~1('1 t...~en. indicate ·t he· !nth!~ sttmy .t~ hyd:regwa:rh W'.a1f· tm.~yzed 1n tlds l ~ oml b:roken down into 4 ,cy(tt~ by ttta?'tlng VJ!\11-~ a year ~ttle • with a11 atnE1l ~ o!' .t.· 00% ;<>-f ,t,ha, •an fl:o,::,; By· stariing with a~ y&e.r ttve'.Le af 25% of too me~i ·~w (p:too ,sJtd drtt1:e ) ta()l":6 satd.!Jf-®'t..$:1.'y' .r esults war,e obtai:ned, by tlelng 2 eydles~ Figure 5,• CU;i'Ve I ~ t ) 'tll.i) hydro~ a'.Qh ct SOO!lt-a Ana Tr:tbut.Ar1f$ :&onl 1872' to, 1922. Ot'k""J'e 11 .Sh.®B the Y'E'&i.d~uel.n: , ;~ ,t'i 2: year ~ele 0:~t ~ me3/fttt1,ra ·mpltt-qde- ·h as treen ~ : mvea.. ~ e lia ahoos t~,t~dual-em'tel" a··2' yea~ .~1()• ti.f a5% :()_£' man ft~ ha& h:een ~erM>."Jed. . nm daene.d 1!1111:Eii.'lo\vs u I 1:0 year .cy~l,e• with •'5% ✓~l'J;tuda p:ta:o-ed on, taw-~eaidt1slti. ~a-~ 1n :i?lit-i-e•a teA the 1/esid,.,.1.\liJ'.a fte~ the l<mg.e':- C-f crle· htt.8' b~en ?mlmO,r,ed~ ~ · n · a'l-i-ow·« the '2° pwo~dling -e yeles pl:ott:e& Frot11 mea..'11 · fl:~w record'$ Ft'OO! 2 '!f<al'tt' W.$ -07/Cl~ :t. " 10 yea:1!' 55% eye"l.e 25.,ll ,59. 8 F.?y oompa'ri~ graphs !'I -end. 11a i _t ap1)eare •tllf.\t. the· ~-nitud-e ❖t the 'two year ey,¢:l t~ ~.! b~ v~i-iable,. A 00%•pl:tt.uue aee:m.s -to ftt, he,t .ter . : ~ th@aa.rlie;r, ;1~~- -d. a 2$% ~litud:♦ j <" ~ ta rtt 'be~t~w in tht; late:?"" y~an:. By plot..t.int t:h~ dtt---_ ferenc'e$ in Sttooesttiv.& ye:ar.,s ·an· attempt w~ "ll.llad• tx>• det.~~ how the ~~f.uda Of thls eyc:le, vari~ Re'tJults weer.a unaaft► 2 yee.?' 91 el~ l"ev,.,,:.·&e~"' Unfo·r ttlnately the h;vdregl'apn ta· tlbt 1ong eoough to:- detormi,ne whet.her t.hia oye.l.J.<1 rev.$1·aal la par-100.,., io or merely ohanee., T~ a,e finiteno-sa .o f 'the 2' i/~aT c:-,c0-l:eooul d iml.eate:.,. bowav·e:r~ thlk't ,aha'!;lC-e at em.a d :oes _mt ecnt'J:'6! £!,;Qod t low:-.. Th.e,esiduals in CU-r11:e· III, Figure 66 ehot1ld be ftt:tthe•:r lnr1estigate:<l fb:r ;eyeltm* lmt iml~!-e-Jn tmieatea: that ~her e~role wruld !".ave a large .om~l!'ttwle ru)d long po:rte{t (appm1t!?u.at&l7 50ft an4 l;O ye!U"s} out .o r· p.hu$/ wit-lit i's' lO y~ai-·_~ ·-eyel,e • ' 1. The b:oef'fidient of" "\fg4~1'd,1"\'n t-: -+~~ Santa .Ana lli'ffr • . .. . 2-. The- coefficient of stew, ®1'?'ect.ed,. le !.<J6 ,. These 1'oeffie~nt,s «re -ve,ry &en:&1.t.ive to Chang• 1n •. ·• 4. The mo.a t 1noh-able f'lo'lt' ~.· -:..fi4% .of the mean (: ~ ) , • and .ttlQU' be expeted ,11' ott he time•. •· 5. The- re1.&t10.nShtp between poro.ent -o f'~ kltt an:4 percent of mean rtood t!Jfq b& s p ~ by' 'the <e-quat.ions , .~ I P = 1:;2:. 4xltr-00501P -ot- ,a p • 1;z._4x~r-0156p . where P ta pe!"Cent <)i!t.:_.1-:, ohtdl, 1'11.1 have a !'10w o.£ p percent, the ft-ow 'Or th& Santa Ana River,#. -a two -:,ear eyc:Le: with an err pliturle ~ or th~ mean flowi-tt;n.1 • 10 year cr,ole with .- .am.-pli:tude ♦t ,~ 0.t \he -me-an rt~•. --i:. ?he record$ available w:e Mt sutt.t-c1ent.1y l<>ng to obtain•• than an app.-Xlll£l\e det-el'tn-inatian o-.f the cycles. a. homtherec-ords av.all,able ti. appears that Cha.""Ule haB a-a mch influence· -on t'lo.wa ·t t.h& Santa Ana Bi,rar as da: eyel•a. ~)l~~t Alli ~.a.tier SUWlt Papen ♦~ed l a.,~~ W•W11f of' ·~~ st•~.., •ft'O$t, n.wa· l:tt fthe; tltd.tei ~~ea• Watar SUppl~ ,_er No., 111· ·• ~ ttt mili~nda ~ t t •~ta A• ht~st1gatton•, &.uliatt1i U>.- 1"~rt•-or •~td..,cm t'lf ~gtneetd.Jitt and· lni.gat~, ;oatltQntta n.p~nt 11:t :Nblte:· ~, .. K,, Pierce* Q~ R.. , #Pn:)ba)b, Vmm.l«t in Year~ ·~ t t u .Jietel"mlned f'°J'om a siwtsr or· ea.1.i:~ e'tmmna•· Ti"snsacti•m· ~--1 · !!M* .-""'-, u.-.-l ' ~ n ,. ·;A a,., . ~ I f ! , , •• ~ ~ ,-, ~ ~OCk;,, G.,, ·C,;._ ., _ .b.i-l,:.,;t ,.,._., ~~ .«!.IW.IU wu·- -,1 ~ "'11~ ,U@~ fO:t •if¥! . @sttmm§, . M;: ' ltei•""' .,~ ·· lI• . L• . .- - , l l .... - .. ,; ,wua.:,, tt:t~ 7QQ Olm .and ao. 189$· 4 l lr a .~· · •t . •~ ' : •.-edt ·m -$~~~te~· ~ -,_1. • , Pub~• ,·. ·~ ~ ~sn.·•. Omtri • - •. · • 1"14"1 · "G.l: