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<br />"'.J' ~ > ~ <br />u, ," ~ J <br /> <br />. <br /> <br />data - factual material. <br /> <br />database - a collection of data stored as files that can be retrieved by a computer <br />system. <br /> <br />debug - to locate and correct errors in software. <br /> <br />depletion - a loss of water from a surface water system as a result of man's <br />activities. Such activities include, but are not limited to: evaporation from man- <br />made reservoirs, transpiration from irr iga ted crops, metabolism from people and <br />domestic animals, industrial processes, and discharge to an aquifer resulting from <br />ground wa ter use. <br /> <br />depletion study - a method of hydrological analysis which estimates depletions and <br />depleted stream flows throughout a specified period. Likely effects of future projects <br />or development can be assessed against past history of climatic, streamflow and <br />development conditions. <br /> <br />de pie tors - a number of persons, animals, irrigated acres, industrial processes, or <br />man-induced activities that causes a depletion, given in numbers per year. <br /> <br />diversion requirement - that quantity of surface water to be diverted from a stream <br />to satisfy the crop irrigation requirement and conveyance losses for all full service, <br />partial service, or waterspreader irrigation in a node basin. <br /> <br />. <br /> <br />effective precipitation - that portion of the total precipitation which is available to a <br />plant for use in its physiological processes; losses occur due to evaporation, surface <br />runoff, and deep percolation beyond the root zone. <br /> <br />equivalent clear-cut area - a data transformation parameter used in assessing the <br />hydrologic effects of part ial cuts and road building. Hydrologic effects were <br />estimated for clear-cut areas with the effects of partial cut and road building then <br />being assessed in comparison to that of clear-cuts. It was assumed that one acre of <br />partial cut was equivalent to 0.4 acres of clear-cut, and that one mile of road <br />construction was the equivalent of six clear-cut acres. <br /> <br />evapotranspiration - the process of converting water on the earth's surface to <br />atmospheric water vapor, by either evaporation or transpiration. <br /> <br />farm ponds - small impoundments or dugouts of less than 40 acres surface area used <br />primarily for livestock water. <br /> <br />forest accretions - the increased <br />from forest management practices. <br />construC tion remove vegetation, <br />consumptive water use by plants. <br />accretion to streamflow occurs. <br /> <br />wa ter yield from a forested <br />Practices such as harvest, <br />thus reducing ground cover <br />As a result, surface runoff is <br /> <br />watershed resulting <br />thinning, or road <br />and lessening the <br />i nc rea sed and an <br /> <br />. <br /> <br />forest type - a classification term relating to the dominant species of tree or trees <br />in a forest stand as determined by species composition or crown class. <br /> <br />full service irrigation - that irrigation in which the entire crop irrigation requirement <br /> <br />1-9 <br />