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<br />OOlG59 <br /> <br />30.6 <br /> <br />WATER INFORMATION MANAGEMENT SYSTEM HANDQOOK <br /> <br />30.6 - Symbols. As a convenience to the reader, the symbols used in this <br />nanabookinave been collected in this section. <br /> <br />A . channel cross sectional area <br /> <br />As . channel cross sectional area at bankfull stage <br /> <br /> <br />Ay - channel cross sectional area at vegetation encroachment prevention <br /> <br /> <br />stage <br /> <br />a - constant or exponent <br /> <br /> <br />b - constant or exponent <br /> <br /> <br />c . constant or exponent <br /> <br />DA - drainage area <br />d . particle diameter or size of sediment <br /> <br />d <br /> <br />- mean depth <br /> <br />E <br /> <br />f <br /> <br />Ib <br />k <br /> <br />- <br /> <br />mean elevation <br /> <br />- <br /> <br />constant or exponent <br />sediment transport rate <br /> <br />. <br /> <br />. <br /> <br />constant or exponent <br />constant or exponent <br />exponent <br /> <br />m <br /> <br />- <br /> <br />n <br /> <br />- <br /> <br />~ <br />QB <br /> <br />- <br /> <br />mean annual discharge <br />bankfull discharge <br /> <br />. <br /> <br />QB1.5 = log-Pearson type III 1.5 years peak discharge <br />QLV - vegetation encroachment prevention discharge <br /> <br />" <br /> <br />. . <br /> <br />l ) <br />