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<br />~ <br />~ <br />'(9 <br /> <br />Tbe relation between precipitation and altitude weB <br /> <br /> <br />established by plotting the man annual preoipitation at 15 <br /> <br /> <br />statiOl1S Bl.U'rounding tile watershed, 8 gail1llt the elevation ot <br /> <br />eaeb reepecti've station for the periods of strem flow record <br />at ~ncoG. For these periods, so~ of the stations used did <br /> <br />not have 8 complete record. To put ell stations on the same <br /> <br />besiB. missing yearo were supplied by correlation with nearby <br />stations. As the runoff records cfthe ldancos River neer <br /> <br />Msncos extended over theporiods 1921024 end 1932-36, a sep- <br /> <br />&rate altitude precipitation curve wes drawn for eaoh of the <br /> <br />two periods. The mean precipitation for each Soo-teet rise <br /> <br />in elevation, Ill; t.oltl;n frolll the curves, 'at\s then lIpplled to <br /> <br />the ena 1n the waterahed lying Tlitb1n thllt rille for the en- <br />tire watershed above the iIosnoo5 gage. In tlliG manner the <br /> <br />total precipitation felling on the watershed waa computed <br /> <br /> <br />for the 1921-24, and 1932-19J5 periods. (Records for 1936 <br /> <br /> <br />not QvailebllJ at time of this study.) Sines the consumv- <br /> <br />t1ve use of the .I.lter~hod 16 believed to be uniform lor llll elti- <br /> <br />tUdell, the toUll ?!,sc1pltation minus the llmoW1t of: I'Wlorf, <br /> <br /> <br />indicetee the C[ullntity and the n,tE\ of thiG UF.a. <br /> <br /> <br />For the period 1921 to 1924, inclusive, (wet period) <br /> <br />the conllumptioll. 1m!!; foum! to be 15. B7 ir.chea end for the per- <br />iod 19,2 to 19;6, inclusive, (dry period), it was found to be <br /> <br />44 <br />