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<br />DEFINITIONS <br /> <br />Major Basin: One of the twelve major basins assigned for analysis in this <br />investigation. <br />Study Watershed: One of the watersheds for which incremental runoff and time dis- <br />tribution have been determined specifically in the hydrologic analysis. <br />Massif: One of the major mountain range entit:l(-\s with ospecified orientation for <br />which incremental precipitation resulting from a hypothetical cloud seeding <br />operation has been computed in the meteorological phase of this report. <br />Massif Unit: That portion of a given massif lying wholly within a given study <br />watershed. <br />Elevation Zone: That area lying within a given 1000 foot elevation band within <br />a given massif unit. <br />Index Precipitation Stations: Precipitation stations lying on or near a profile <br />which have been utilized to describe seasonal precipitation quantity and dis- <br />tribution applicable to the massif. Additional precipitation, sn01N and runoff <br />data have been used to supplement index station data. <br />Precipitation Topographic Profile: A specific profile across a given massif for <br />which incremental precipitation amounts have been computed. <br />Average Topographic Profile: An average profile across a given massif which has <br />been used in the model computations of incremental precipitation amounts. <br />Time Lag: The air mass depicted by a sounding from a rawinsonde station is assumed <br />representative of the air mass over a massif at some later or earlier time. <br />The time difference is referred to as a time lag. <br /> <br />iii <br />