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<br />,.,. <br /> <br />.'t'. <br /> <br />'<:j1 <br />OJ <br />Cf'; <br />~'~ <br />('.~-.' <br /> <br />Co) <br /> <br />EVAPORATION <br /> <br />The last paragraph of Article VI of the Compact states in <br />part, --- "such credits and debits shall be reduced annually to <br />compensate for evaporation losses in the proportion that such <br />credits or debits bear to the total amount of water in such re- <br />servoirs during the year." <br /> <br />To provide the data needed for the computation of such eva- <br />poration losses the Commission has, encouraged the establishment <br />and operation of evaporation stations near each major reservoir ill <br />the basin and at other selected locations. <br /> <br />Evapor.ation and other climatological data collected at the <br />several stations in Colorado and New Mexico are t.abulated on the <br />next page. At so~ of the stations it was not. Jssible to obtain <br />evaporation records throughout the winter perivd. <br /> <br />The measurenents of evaporation were made in accordance with <br />standard practice for the type of pan in use. Measurements of pre- <br />cipitation were made in standard 8-inch rain gages, which were sup- <br />plementad at some of the stations by recording rain gages. , <br /> <br />Records for the evaporation stations at Agricultural College, <br />Elephant Butte Dam and El Vade Dam antedated the creation of the <br />Commission; the station !It Bosque dal Apache was established for <br />the U. S. Fish and Wildlife Service. All others were established <br />at the request of the Commission. <br /> <br />The Rio Grande Compact Commission gratefully acknowledges the <br />cooperation of the U. S. Weather Bureau for furnishing the climato- <br />logical records contained in this report. <br /> <br />..,. <br /> <br />. -,,'. <br /> <br />. <br /> <br />: :~, " <br />