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<br />OJJ423 <br /> <br />TABLE OF CONTENTS <br /> <br />List of tables <br />List of figures <br /> <br />Abstract . . . . . <br />Acknowledgements <br /> <br />I. <br /> <br />Introduction . <br /> <br />Weather stations analyzed <br />When and where precipitation occurs <br />Dept.h of precipitation required to produce the measured flow in the <br />Upper Colorado River . . . . . . . . . . . <br />General evaporation and rnnoff relationships <br /> <br />II, <br /> <br />Frequency analyses . . . . . . . . . . . . . . . <br /> <br />Annual precipitation . . . . . . . . . . . . . <br />Difference between average and median preCipitation totals in semi-arid climates <br />Percentage of storm periods giving various fractions of total annual rainfall <br />Dates within the water year for acquiring various amounts of precipitation . <br />Probability of receiving given amounts (5, 10, 15, and 20 inches) of <br />precipitation during the water year after 1 January, 1 March, and 1 May <br />Amounts of precipitation received from storms for the various months <br />of the water year. October - September <br />Distribution of precipitation during the water year . . . . . . . <br />Frequency distribution of precipitation amounts ........ <br />Example of correlation study by machine tabulation procedure <br /> <br />III. A review of major storms which have occurred in the Upper Colorado River Basin <br /> <br />Objectives <br />Procedure <br />Res ults <br />Conclusions from study of major storms <br /> <br />IV, <br /> <br />Moisture sources for precipitation in the Upper Colorado River Basin <br /> <br />Objectives <br />Procedure <br />Results <br />Conclusions from study of moisture sources <br /> <br />V. <br /> <br />Conclusions and recommendations <br /> <br />Conclusions <br />Recommendations <br /> <br />VI. <br /> <br />Appendices <br /> <br />Procedures for machine processing of precipitation data <br />Catalogue of data available at Colorado State University <br /> <br />Page <br /> <br />ii <br />iii <br /> <br />v <br />vi <br /> <br />2 <br />2 <br /> <br />6 <br /> <br />6 <br />9 <br />9 <br />11 <br /> <br />13 <br /> <br />[5 <br />17 <br />19 <br />21 <br /> <br />23 <br /> <br />23 <br />23 <br />24 <br />25 <br /> <br />26 <br /> <br />26 <br />26 <br />26 <br />27 <br /> <br />29 <br /> <br />29 <br />29 <br /> <br />31 <br /> <br />31 <br />34 <br />