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OJG~84 32 Boards were wired for the IBM 402 and IBM 514 for a summary punching operation to obtain the following information on the new deck of "storm" summary cards: a) precipitation per storm b) accumulated precipitation c) storm serial number d) serial day storm ends e) number of days with precipitation this period f) accumulative days with precipitation g) days with trace this period h) accumulative days with trace i) days with no precipitation this period j) accumulative days with no precipitation k) days with no record 1) accumulative days with no record m) serial year (October 1, 1800 begins serial year 000) n) t t punch to indicate t 5t storm in each serial year The boards for this step were quite involved and required several hours of experimentation with timing. selectors. emitters. etc. Due to the time involved in wiring these boards I the wiring dia- grams will be made available upon request to the author. Step 7. Summary Card Check of Storm Cards Simultaneously with the summary punching of storm cards. a list was made. The following visual checks were made to insure proper punching: a. check precipitation per storm to check for excessive amounts b. scan months for order in each serial year c. check for a change of only one year within each serial year d. check serial year order If any of these checks indicated improper sequencing or other errors I that portion was rerun Part (c) could be in error if a year was missing or if the month of October was missing. as a serial year begins with October t. In case of this type of error. partial serial years were rerun. Step 8. .Serial Day Storm Begins In the analysis of the storms it was necessary to have the serial day that each storm began. On the IBM 514 the last day of the previous storm was punched into each card, except for the first storm in each serial year. One day was added to this figure to obtain the serial date for the beginning of each storm. Step 9. Last Storm in Serial Year In step 10 (see below) an 11 punch was used to ldentify the last card in each serial year. To accomplish this, in step 9 the cards were run in reverse order on the IBM 514 and the 11 punch identifying the first card in each serial year was punched into a different column of the next card. This card then was the last card of the previous serial year, due to the reverse order. Columns 1,2 3-6 7,8 9, 10 It.12 13 14-18 19-23 24 - 26 27-29 30-32 33-35 36 - 3 8 39-41 42-44 45-47 48-50 51-53 54-56 57-75 76 77-79 80 Layout for Storm Summary Cards state alpha order number year month day division precipitation this storm accum. precipitation storm serial number serial day storm starts days with precipitation this period accum. days with precipitation days with trace this period accum. days with trace days with no precipitation this period accum. days with no precipitation days with no record this period aCCUffi. days with no record serial year blank t t punch last card in year serial day storm period ends t t punch t st card in year Step 10. Last Card List A list was made consisting of the last card for each serial year. Because a deck of last cards was desired for step I t this operation was performed as summary punching. The board for the IBM 402 was wired to list the last card and summary punch a duplicate of it by a minor program, which was started by a change in serial year. The counters I however, were pulsed to add by the 11 punch in last cards. A check of the list then gave another check for correctness in the summary cards. A che'ck on the llserial day storm ends" column told how many daily cards there were in each year. Years having fewer than 360 daily cards were not included in the analysis. Step 11. AnalysiS of Missing Precipitation Data The last cards obtained in step 10 were used to make a frequency of the number of days with no record of precipitation for each water year. It was decided to eliminate all years having more than 35 days of missing precipitation data. Step 12. Unusable Years The partial years of less than 360 days, and/or the years with more than 35 days of missing precipi- tation data, were removed from the deck of summary cards.