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<br />MANUALS-CORPS OF ENGINEERS
<br />U. S. ARMY
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<br />EM 1110--2,1405
<br />31 Aug 59
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<br />ENGINEERING AND DESIGN
<br />FLOOD-HYDROGRAPH ANALYSES AND COMPUTATIONS
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<br />TABLE OF CONTENTS
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<br />INTRODUCTION
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<br />1. PURPOSE AND SCOPE __..........______......'P..'~"""'u.m' ..,m"uu
<br />2. REFERENCES, u",.. ..u......... P P' u, ." P..... P pu u u" u' ,d m,...
<br />:l. RESCISSIOI\., u"".. 'u.".......'.'"",......','.'.'..u,',...,.,..,....."
<br />4. TYPES OF A~ALYSES COVERED..,...",.",..,.,.",..,.,.,., ,.',...,...,.,....
<br />5. BASIC CONSIDERATIONS,..",.,., .-,.,. ,..'.'.'",.,.,.,., .,. ,.."'.."'" '"
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<br />RAINFALL DETERMINATIONS RELATED TO NATURAL
<br />HYDROGRAPH ANALYSIS
<br />6. :\IASS RAIN~'ALL CURVES""", uu........ u,......... '....uu 2
<br />7. HYETOGRAPHSmu.., uuu.... uu,u......"umu"'.. 3
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<br />COMPONENTS OF NATURAL HYDRO GRAPHS
<br />8. GENERAL.".... ..u,,,,,,..u u'u....,,'..uuu ,,,........'..u'
<br />9. NOR:VIAL RECESSIOX CURVES,,,. m . __,,' ,u"'" P....,.......... __ u
<br />10. GROUNDWATER DEPLETTOK CURVES, ....""............ 'uu '
<br />11. SPBDlVISIOK OF HYDROGRAPHS, .., u" ,..'.... u.... ... __. __.... u u
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<br />INFILTRATIOK INDICES
<br />12. GEKERAL,.,.....,....,.,..",.,,,,,.....,.,.,,,, ,..,...., ,..'........ "....." 5
<br />13. IKITIAL LOSSu..,...... u',......,.' ,~,.,...,",. '.......... "....u' ,u u"" 6
<br />14. I"'FILTRATIOK INDEX. ...." .... P.U' .........._, ..........,..,u" 6
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<br />UNIT HYDROGRAPHS
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<br />15. GENERAL........ P""""'''' ,u"""'''' ,,,,....,...,,',. ",. "...... P" ", 7
<br />16. UNIT HYDROGRAPHS FRO:VI ISOLATED UNIT STOR~S,.. u,uu~",""""" 9
<br />. 17. UNIT HYDROGRAPHS FRO:VI :VIAJOR FLOOD RECORDS"'........,...."u..,.. 9
<br />18. SYNTHETIC U",IT HYDROGRAPHSu...", u,...,'.'.. 'u.".. ,..,.,..,'''''''' 10
<br />19, SNYDER'S SYNTHETIC UNIT HYDROGRAPH RELATJONS,~..".....,..'u.... 10
<br />20, (,ONCENTRATIO~ OF RU~~OFF KEAR PEAK."mu"'....'...u....,..,..".. 11
<br />21. S~CURVE HYDROGRAPHS", u"...".,,'..',.. __.'" U" ,~,........'.,",....., 12
<br />22. SU:VI:\IARY OF SYNTHETIC UKIT HYDROGRAPH CO~PUTATION..u..'m..u 12
<br />23. UNIT HYDROGRAPH ADJUSTMEKTSm.... u....'.." u"",....'......'...... 13
<br />24. CO:\-IPARISO'" OF UKIT HYDROGRAPHS DERIVED FRO:\-I MAJOR AND MINOR
<br />FLOOD HYDROGRAPHS......,.... u' 'u.,.., 'u, ,........,....P. u" ..., u.. 14
<br />25. SELECTION OF UNIT HYDROGRAPHS FOR DESION~FLOOD COMPUTATIONS, 15
<br />26, UNIT HYDROGRAPHS FOR COMPUTATION OF INFLOW INTO MAJOR RESER~
<br />VOIRS........ ............,' ,~.. ,......,.........,... 'P ....,...,...., ,u..u u 16
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