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<br />Hydrology Study <br /> <br />The Mi~~ouri Rivt:'f Basin Hydrology 5IUdy was inilialed in 1980 and <br />continued in FY81 with two miljor objeC!ives: (1~ 10 dewlap an .lecurate <br />and acceplolble base of information describing waler availability and <br />use in the !en-state .'1issouri River basin. and (2, to d('veJop a water <br />accounting system iar estimating th", ('ileets oj potenlid!, ddditional <br />future waler uses. <br /> <br />The mdjor challenge faced in medsuring dvaildbilitv 01 water in ,hl' <br />bd,in is Th.lI conditions 0; supply and use are not sialic, but (oml.mtl" <br />changing. In d river system, the amount of water available is contin- <br />uously allerl'd by precipitation. waler flowing oul. evaporation. and <br />comumption by various uses. The hvdrology '>Iudy is based on a <br />depletion dpproJch which Id"es this continual change into account. <br />In FYB1, datd \\ere gdthered 10 determine the monrhlv wdter supply <br />dnd u~e ior l>,lCh }l:'.H of the studv period (1944.1978) in each node <br />bdsin wilhin tht" ,\.1issouri Ri\er basin. The 9] nodp bdsins delinedled <br />,He .Heas defined by .I common drainagl> s~'slf'm wilh Slr('am gdging <br />stations located .II lheir oUlflow point. Thest' d,Ud will be used to show <br />whal strC'amflow would have occurred if b.lse-ye.lr (197Bl develop- <br />menl had e_isted during an e.lrlier \e.H, under thai \'ear's climatic <br />condilions. <br /> <br />The hydrolog\' slUdy required the cooper.Hion 01 more thdn 50 statc <br />and fedl>ral dgl>ndes. Each oi ji\e work groups invol\'inH these agencies <br />is re,>ponsiblC' for Sl'p.H.lle bul inrerrt'ldted tas"-s. Four oi Ihese work <br />groups compiled d.llJ. under the iollowing cdlegories: suridce w.ller, <br />ground W.llN, .lgricuhural U~l', Jnd municipdl dnd industrial uses. <br />The fifth group. the S"slem ,\.1elhod~ Jnd Oper.llion Work Group, will <br />ent(>r dll ddtd inlo .I compUlPr d.ltol bJnk and deq>lop the computNized <br />watl'r dccounling system. <br /> <br />Bec.luse of the Commission's lermin.llion .II the ('nd ot FY81, J pro- <br />posed joint project with Ihe National AeronJulic..and SpaceAdministra- <br />tion 10 prep<lf(> a b.lsinwidt' tesl inventor\' of irrigated lands using <br />satellile-olcquitl'd ddtol was not initiated, <br /> <br />Th(' Commission published ,In informational brochurt' in FY81 <br />d('spibing lhe hydrology study, its dollJ base. .md uw pOlential. <br /> <br />With the conrinuing cooperation .:md commitment of JlI ",udv <br />pat1icjp,Jnt.., the .\.1issouri Basin States Associalion will compleie <br />Ihe hydrology ..tud} by September 1982 as ori~inally planned. <br /> <br />Middle and Lower Missouri River Flood Plain Study <br /> <br />The Commission began a I.... o-}e.H slud\' in FYBl ....hich concentrated <br />on th(' 752.mile length oi the .\1i....ouri Rivet irom Ponca, :-';ebraska <br />10 Iht~ mouth of Ihe river just abme SI. louis. Mis~ouri. The purpose <br />of lhe sludy is to promote compatible olnd coordinated management <br />of the ,\.1issouri River flood pldin for the States of South DakOld, Ne. <br />braska, Iowa, Koln..as, and ,\.1i..souri. ,""1ajor focuses of study activities <br />are to collect and org.mize naturdl resource and land USl' informal ion. <br />10 updalt' t>stimates of current and iuture flood damolge potential <br />in Ihe flood pldin. dnd to de\elop alternatives for management of lhe <br />flood plain. <br /> <br />Follo.....ing completion 01 Ihe pldn of study .....hich outlined flood plain <br />study activilies, the Commission receiv(>d notificdtion of ils pending <br />10 <br />