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<br />000485 <br /> <br />Step 13. Transfer to Tape <br /> <br />The analysis on the 1620 required all input to <br />be on a channel paper tape. The following informa- <br />tion was transferred from each summary card: <br />month, storm precipitation, serial day storm starts. <br />number of days with no record, serial year and a <br />record mark (end of line). In addition, at the end <br />of the last card in each serial year, an extra record <br />mark was punched. <br /> <br />Step 14. Summary Card Analysis <br /> <br />A program was then written for the IBM 1620 <br />to obtain the following information: <br /> <br />Figure <br /> <br />2 annual precipitation mean and variance <br />3 number of storms mean and variance <br />4 annual precipitation mean and variance for <br />storms with precipitation greater than zero <br />after subtracting assumed evapotranspira- <br />tion losses. depending on the altitude of the <br />station and the month the storm is in. <br />S number of storms mean and variance after <br />evapotranspiration reductions <br />6 percentage mean and variance of the number <br />of storms comprising 25 per cent of the <br />annual precipit ation <br />7 same as 6, for 50 per cent of annual <br />precipitation <br />8 same as 6, for 75 per cent of annual <br />precipitation <br />9 serial day mean and variance that 5 inches of <br />accumulative precipitation was received. <br />Also the fraction of years of record in which <br />5 inches was received <br /> <br />33 <br /> <br />10 same as 9. for 10 inches <br />11 same as 9. for 15 inches <br />12 same as 9, for 20 inches <br />1 3 5 ame as 9 J for 25 inches <br />14 probability of receiving 5 inches of precipita- <br />tion after 1 January, 1 March and 1 May <br />15 same as 14, for 10 inches <br />16 same as 14, for 15 inches <br />17 same as 14, for 20 inches <br />18 October precipitation mean and variance <br />19 November precipitation mean and variance <br />20 December precipitation mean and variance <br />21 through 29 January through September pre- <br />cipitation mean and variance <br />30 extremes and 25, 50, and 75 percentiles for <br />figures 2 through 13 and 18 through 29 <br />31 an ordered list, by years, of the precipitation <br />in January, July, and then the entire year. <br />From this a frequency distribution was made. <br /> <br />Note: The program as written used the <br />numbering as listed above. In preparation of the <br />fmal copy of thIS report, the numbermg system was <br />chanR'ed so that Figure 2 became 3, Figure 3 be- <br />came 4, etc. <br /> <br />The values for figures 2, 3, 4, and 5 were <br />corrected for days with no record. At the end of <br />each year, these values were multiplied by <br />365 <br />365-A where A is the number of days with no <br />record. <br /> <br />Upon request, the program for step 14, <br />either in list or cards for the source program, or <br />tape for the object (maChine language) program, <br />will be made available. <br />