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<br />is available to provide full crop production in at least 8 of 10 years. <br /> <br />. <br /> <br />graphic - representation by lines, bars, or other geometric shapes. <br /> <br />ground water - water beneath the land surface that is contained in the zone of <br />saturation. In a few localities, the top of a saturated zone may coincide with the <br />land surface; but in most cases, water-saturated formations may be reached only by <br />digging or drilling. <br /> <br />g;round water irrig;ation - irrigation utilizing water pumped from subsurface aquifers. <br /> <br />hard copy - paper copy or similar medium that provides a document of computer <br />output. <br /> <br />hardware - computer equipment such as the CRT, printer, plotter, mainframe or other <br />physical items. <br /> <br />historic depletion - the depletions which have occurred in the Missouri basin in the <br />period 191111-1978, given in acre-feet, by month. <br /> <br />1978 level depletion - that part of the net depletion calculated by multiplying the <br />historic unit rate of water used by the difference in depletors between 1978 and any <br />years 191111-1977. <br /> <br />hydraulic conductivity or permeability of an aquifer - the volume of water that will <br />move in unit time under a unit hydraulic gradient through a unit area measured at . <br />right angles to the direction of flow, expressed as gallons per day per square foot. <br /> <br />information - data that has been arranged into a meaningful and useful form. <br /> <br />input - the process of insertion of data into a data processing system. Opposite of <br />output. <br /> <br />interactive prog;ram - a computer program that requires that the user input data <br />during its execution. <br /> <br />irrigated land - land on which water is intentionally applied to a crop one or more <br />times during the growing season for the purpose of enhanced agricultural production. <br /> <br />livestock daily water requirements - the gross amount of water needed per head per <br />day for maintenance of physiological functions. In this study, requirements for five <br />classes of livestock were given. While the requirements vary with regional climates <br />and the season, constant rates were used basinwide in this study. <br /> <br />minimum (conservation) tillag;e - a form of non-inversion tillage that retains <br />protective amounts of residue mulch on the surface throughout the year. Includes no <br />tillage, strip tillage, stubble mulching, and other types of non-inversion tillage. <br /> <br />narrative - in terms of the MBSA database, a written summary of general <br />information, compacts and court decrees, water rights, and state water laws. <br /> <br />net radiation - the difference between the downward and upward solar and long-wave . <br />radiation flux passing through a horizontal plane just above the ground surface. ' <br /> <br />1-10 <br />