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<br />~NVDE~.S LAG TEC~NIQUE <br />I"lV()PAN H"O~OLOGIC PAloUfltETERS <br />FEBHUARY 1978 <br /> <br />EO CUD .....lUES <br /> <br />CC 12345b78~U12345b7eqQ1234~b7aqOI23qSb7e9012345b78901a3~5b78901234Sb7D'01234Sb1d~0 <br />EQ .~27bOO .~81b~O-.OO~7~S <br /> <br />E~ VALtJtS <br /> <br />CONST eC) <br />.927&00 <br /> <br />co.. ICl) <br />-.003135 <br /> <br />COIIIA (CI) <br />.3tH600 <br /> <br />C.lCULATION OF SNYOEH'S LAG (TP) <br /> <br />-------~-_..~---------------------_._----- <br /> <br />Cl (Clll <br />TP (HOUHS) . (eleX) (10) <br /> <br />wHERE --- <br /> <br />c = kEG~E55IUN C~NSTA~T a .927600 <br /> <br />-.' <br />I, .. (Ll el) (5) <br /> <br />l c ST~EAM LENGT~ (MILES) <br /> <br />Z . LeA (LENGTH fO CENTROID IN "l~ES) <br /> <br />S a STREA~ SLUPE (FEET/MILE) <br />Cl = ~EG~ESSInN COEFFICIENT. .387bOO <br />C2 = ~EG~[SSIUN COEfFICIE~T = ~.00373S <br />I = PERCENT IMPEkYIOUS~ESS <br /> <br />~1'T1 <br />)( <br />O::T <br />.....~. <br />0- <br />....~. <br />.... <br />W <br />, <br />N <br /> <br />~ (22) Basin lag equation <br />(Snyder's) <br />